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  • Repeaters links - ON1HH
    5B repeaters 9A repeaters 9H1 repeaters C3 repeaters CT repeaters with map CU repeaters with map DL repeaters DL channel list DL repeaterlist sorted according to QTH DL repeaterlist sorted according to TX frequency DARC find repeaters according to maps no lists EA repeaters Click Area VHF Repetidores EI repeaters ES repeaters F repeaters G repeaters GM repeaters GU repeaters HA repeaters HB9 HBØ repeaters Click General info QRG relais I repeaters LA repeaters LY repeaters OE repeaters OH repeaters OK repeaters OM repeaters OZ repeaters PA repeaters 6m repeaters are not permitted in The Netherlands because of the secondary status of the amateur service The Ministery of Defence is the primary user and will not allow unmanned stations on 6m in The Netherlands P43 repeater Aruba S5 repeaters with pictures and PDF files SM repeaters with maps in GIF format SP repeaters SV repeaters TA repeaters TF repeaters TK repeaters YL repeaters YO repeaters YU repeaters Repeaters worldwide VK repeaters VK2 repeaters 2m and 70cm by VK2KFJ VK2CA s VK Repeater maps VK 6m repeaters USA repeaters Russian repeaters Z3 repeaters ZL repeaters Canterbury Area Repeaters Auckland Repeaters ZS repeaters 10 meter repeaters EU and WW Buckmaster qsl info

    Original URL path: http://www.on4sh.be/ham/links.htm (2016-04-26)
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  • SCANNER FREQUENTIELIJST BELGIE
    138 080 Parket Brugge Gent Brugge 170 230 Douane Nationaal Brussel 152 800 Politie Brussel 152 900 Politie Brussel 153 050 Politie Brussel 153 500 Politie Brussel 159 750 Gerecht RW staf M Nationaal Brussel 159 830 Staatsveiligheid Brussel 159 950 Gerecht TX base F1 Brussel 466 870 Politie Gerecht Brussel 153 825 Politie Buggenhout 172 830 Politie Burcht 153 275 Politie 152 125 Charleroi 158 310 Politie Ciney 153 825 Politie Chaudfontaine 153 000 Politie Colfontaine 152 975 Politie Courcelles 153 100 Politie in samenwerking met Gendarmerie Couvin Florennes 152 075 Politie Deinze 153 825 Politie 152 775 Dendermonde 153 425 Politie De Pinte 172 830 Politie Deurne 153 225 Politie Diepenbeek 152 575 Politie Diest 153 975 Politie Diksmuide 153 950 Politie Dilbeek 158 610 Politie Dilsen 170 060 Rijkswacht 1 168 590 Dinant 152 975 Politie 163 350 Duffel 153 025 Politie Dworp 168 270 Politie Edegem 152 925 Politie Edingen 152 975 Politie 159 080 Eeklo 172 830 Politie Ekeren 153 350 Politie Elsene Ixelles 152 975 Politie Emblem 153 825 Politie Esneux 153 025 Politie Essen 153 100 Politie Etterbeek gemeente van Brussel Etterbeek 153 150 Politie Evere gemeente van Brussel Evere 153 525 Politie Fleurus 153 000 Politie Frameries 153 300 Politie Ganshoren gemeente van Brussel Ganshoren 153 425 Politie Gavere 152 450 Politie Geel 153 300 Politie Genk 152 625 Politie verkeerszaken Gent 153 425 Politie kanaal4 Gent randgemeenten Gent 153 475 Politie kanaal 2 ordediensten Gent 154 075 Politie operationele dienst Gent 154 350 Politie Gent 152 500 Politie telefoonverbinding met Officier van Dienst Gent 169 340 Rijkswacht speciale verkeersacties Gent 152 400 Politie Geraardsbergen 152 225 Politie Gingelom 152 650 Politie Gravenwezel 153 750 Politie Grimbergen 153 800 Politie Grobbendonk 154 025 Politie Gullegem 153 025 Politie Halle 153 950 ZIP Hannuit 153 225 Politie 467 170 Hasselt 153 075 Politie Heffen 154 150 Politie Heindonk 152 150 Politie Heist O D B 170 080 Rijkswacht Mp Bonn Heist O D B 153 975 Politie Hemiksem 154 770 Politie Herentals 153 800 Politie Herenthout 153 575 Politie Herstal 152 400 Politie Herzele 172 830 Politie Hoboken 466 910 Gerechtelijke politie Hoei 153 000 Politie Hoei 153 475 Reservekanaal ZIP Hoei 153 950 ZIP primary Hoei 168 270 Politie Hoevenen 152 675 Politie Hooglede 153 625 Politie Ona 333 Hoogstraten 152 275 Politie Houthalen Helchteren 153 975 Politie Hove 153 350 Politie Ixelles gemeente van Brussel Ixelles 152 675 Politie Izegem 153 575 Politie Jemeppe 153 400 Politie Jette gemeente van Brussel Jette 153 175 Politie Kallo 168 270 Politie Kalmthout 153 750 Politie Kapellen 153 750 Politie Kampenhout 155 075 Politie Ona 795 Kasterlee 153 175 Politie Kieldrecht 155 200 Politie Knokke Heist 153 000 Politie Koekelberg gem van Brussel Koekelberg 153 450 Politie Koekelberg 153 975 Politie Kontich 152 675 IPZ Kortemark 155 625 Politie 151 025 Kortrijk 153 850 Politie Kraainem 153 175 Politie Kruibeke 158 610 Politie Lanaken 157 570 Rijkswacht Alarm opsporingen Landelijk 170 230 Relais douane

    Original URL path: http://www.on4sh.be/scanner/politie.html (2016-04-26)
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  • SCANNER FREQUENTIELIJST BELGIE
    166 410 Brandweer Edingen 165 890 100 Ekeren 166 090 100 Emblem 166 030 Brandweer Emblem 165 890 100 Essen 167 050 Brandweer Essen 166 150 Brandweer Evergem 166 650 Brandweer Florennes 166 670 Brandweer Fosses la Ville 166 810 Brandweer Gavere 166 270 Brandweer Geel 165 810 100 Centrale Gent 166 150 Brandweer Gent 149 300 Univ Ziekenhuis Gent 166 790 Brandweer Geraardsbergen 165 590 100 Geraardsbergen 165 890 100 Gravenwezel 167 050 Brandweer Gravenwezel 166 630 Brandweer Grobbendonk 165 890 100 Grobbendonk 166 050 Brandweer Haaltert 166 250 Brandweer 166 980 Halle 166 550 100 Halle Zoersel 166 650 Brandweer Hamme 166 550 Brandweer Harelbeke 166 290 100 Hasselt 166 170 Brandweer Heffen 166 090 100 Heffen 166 090 100 Heindonk 166 530 Brandweer Heindonk 166 170 Brandweer ONB226 Heist O D B 166 170 100 Heist O D B 167 050 100 Hemiksem 165 890 100 Herentals 166 150 Brandweer Herentals 165 890 100 Herenthout 166 630 Brandweer Herenthout 166 250 Brandweer Herve 166 250 100 Herve 166 790 Brandweer Herzele 165 910 Brandweer Heusden Zolder 165 890 100 Hoboken 165 890 100 Hoevenen 166 270 Brandweer Hoogstraten 165 890 100 Hoogstraten 166 819 Brandweer Horebeke 167 050 Brandweer Hove 165 890 100 Hove 166 110 Brandweer Izegem 166 630 Brandweer Kallo 165 890 100 Kallo 166 850 Brandweer Kalmthout 165 890 100 Kalmthout 167 050 Brandweer 166 850 Kapellen 165 890 100 Kapellen 166 830 Brandweer Kaprijke 165 890 100 Kieldrecht 166 630 Brandweer Kieldrecht 166 810 Brandweer Kluisbergen 166 850 Brandweer Knesselare 166 290 Brandweer Koksijde 167 050 Brandweer Kontich 165 890 100 Kontich 166 590 Brandweer Kortemark 165 930 Brandweer Kortrijk 165 990 100 Kortrijk 166 630 100 Kruibeke 166 810 Brandweer Kruishoutem 166 650 Brandweer Laarne 166 440 100 Nationaal Landelijk 166 440 Brandweer Landelijk 166 370 Brandweer 2 Landelijk 157 630 Rode Kruis kanaal 1 Landelijk 157 670 Rode Kruis kanaal 2 Landelijk 157 710 Rode Kruis kanaal 3 Landelijk 157 730 Rode Kruis kanaal 4 Landelijk 157 830 Rode Kruis kanaal 5 Landelijk 157 910 Rode Kruis kanaal 6 Landelijk 157 930 Rode Kruis kanaal 7 Landelijk 158 310 Rode Kruis kanaal 8 Landelijk 145 350 Rode Kruis in samenwerking met radio amateurs Landelijk 468 770 Brandweer Commandowagen Rampen Landelijk 167 110 Ambulances spoedopnamen ziekenhuizen Landelijk 164 930 Prov rampenbestrijdingskanaal Gouverneurskanaal Min Bi Z Landelijk 166 090 100 Leest 166 170 Brandweer Leest 166 650 Brandweer Lebbeke 166 050 Brandweer Lede 166 110 Brandweer Ledegem 166 850 Brandweer Leopoldsburg 166 770 Brandweer Lessen 166 090 100 dispatching Vlaams Brabant Leuven 162 130 Relaiszender naar 100 Antwerpen Lichtaart 166 590 Brandweer Lichtervelde 166 030 Brandweer Lier 165 890 100 Lier 165 890 MUG Delta 25 Lier 166 690 Brandweer Lierde 167 050 Brandweer Lillo 165 890 100 Lint 167 050 Brandweer Lint 166 090 100 Lippelo 166 530 Brandweer Lippelo 166 290 Brandweer Lo 166 830 Brandweer Lochristi 166 710 Brandweer 166 370 166 730 Lokeren 166 470 Brandweer Lommel 166 670

    Original URL path: http://www.on4sh.be/scanner/brandweer.html (2016-04-26)
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  • Luchtvaart frequenties
    AIR delivery LUXEMBOURG 121 750 AIR Luxembourg information ANTWERP 121 800 AIR Antwerp ground CHARLEROI 121 800 AIR Charleroi ground BRUSSELS ZAVENTEM 121 875 AIR ground airport OOSTENDE 121 900 AIR Oostende ground BRUSSELS ZAVENTEM 121 950 AIR delivery HANNOVER 121 950 AIR Hannover ground BRUSSELS ZAVENTEM 122 100 AIR info crossing mil BEAUVECHAIN 122 100 AIR Beauvechain tower FLORENNES 122 100 AIR Florennes tower KLEINE BROGEL 122 100 AIR Kleine Brogel tower KOKSIJDE 122 100 AIR Koksijde tower NEDERLAND 122 250 AIR Luchtballons Nederland BRUSSELS ZAVENTEM 122 500 AIR info crossing mil BEAUVECHAIN 122 500 AIR Beauvechain approach FLORENNES 122 500 AIR Florennes approach KLEINE BROGEL 122 500 AIR Kleine Brogel approach AMSTERDAM SCHIPHOL 122 700 AIR Fokker aircraft BRASSCHAAT 122 900 AIR Brasschaat tower AMSTERDAM SCHIPHOL 122 950 AIR Northsea helicopters BRUSSELS ZAVENTEM 123 100 AIR Brussels rescue heli s Koksijde BRUSSELS ZAVENTEM 123 300 AIR Nato GCA TOURNAI 123 750 AIR Tournai radio MAASTRICHT 123 975 AIR Maastricht approach GERAARDSBERGEN 124 150 AIR Overboelare radio HAMBURG 124 225 AIR Hamburg approach SPA 124 750 AIR Spa radio BRUSSELS ZAVENTEM 125 000 AIR approach control SOUTH GOETSENHOVEN 125 375 AIR Goetsenhoven tower LONDON 125 550 AIR London Stanses approach AMSTERDAM SCHIPHOL 126 200 AIR Meteo broadcast BRUSSELS ZAVENTEM 126 250 AIR Ursel AFIS BRUSSELS ZAVENTEM 126 625 AIR Departure BRUSSELS ZAVENTEM 126 750 AIR approach control WEST BRUSSELS ZAVENTEM 126 900 AIR Brussels FIC NOERTRANGE 126 950 AIR Noertrange information BRUSSELS ZAVENTEM 127 225 AIR Control West High Sector MAASTRICHT 127 620 AIR Euro control Amsterdam sector BRUSSELS ZAVENTEM 127 800 AIR Brussels Volmet Meteo LILLE 127 900 AIR Lille approach BRUSSELS ZAVENTEM 128 000 AIR approach control EAST PARIS 128 100 AIR Paris control BRUSSELS ZAVENTEM 128 200 AIR approach control EAST BRUSSELS ZAVENTEM 128 450 AIR

    Original URL path: http://www.on4sh.be/scanner/burgerlucht.html (2016-04-26)
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  • 259 050 Belga Radar 276 650 Dutch Mil Info 265 200 Approach 277 250 TAC 276 650 Dutch Mil Info 284 350 GCA 284 450 Tower 313 100 31 Sm Air Air 317 500 NATO Fixer Guard 317 500 NATO Fixer Guard 339 350 Charleroi Approach 340 300 NATO ATC 344 000 NATO Director 344 000 NATO Director 356 000 Koksijde Approach 349 000 349 Sm Air Air 362 300 NATO Approach 349 500 349 Sm Air Air 364 200 NATO GCI 362 300 NATO Approach 371 350 GCA 367 025 Wing Ops Whipcream 385 400 NATO Final 367 600 Helchteren Range 396 250 Düsseldorf Radar ICF 371 500 Tower 328 300 Belga Radar 376 525 Vliehors Range 385 400 NATO Final Bierset 387 925 Nordhorn Range 119 275 Approach pri 396 250 Düsseldorf Radar ICF 122 500 BAr Approach 328 300 Belga Radar 129 250 Approach Tower civ pri 254 900 Ground Koksijde 118 250 Brussel Approach Chievres 118 600 Brussel Tower 141 750 Tower Ground 118 700 Oostende Tower 290 525 Tower 120 600 Oostende Approach 300 650 Ground 122 500 BAF Approach 369 200 Dispatcher 123 100 NATO SAR 127 150 Brussel Departure Florennes 129 750 BAF GCA Final 60 100 2 10 Wing Air Air 140 225 BAF GCA 60 200 2 10 Wing Air Air 142 925 BAF GCA 60 300 2 10 Wing Air Air 156 375 Marifoon Ch 67 60 400 2 10 Wing Air Air 156 475 Marifoon Ch 69 60 500 2 10 Wing Air Air 156 675 Marifoon Ch 73 60 600 2 10 Wing Air Air 156 800 Marifoon Ch 16 60 700 2 10 Wing Air Air 160 875 Marifoon Ch 65 60 800 2 10 Wing Air Air 242 300 Tower 60 900 2 10 Wing Air Air 243 000 NATO Guard 120 975 1 Sm Air Air 243 400 BAF Tower sec 121 500 NATO Guard 250 250 Belga Radar Info 122 100 NATO Twr GCA App 252 800 SAR Training 122 500 BAF Approach 256 000 Oostende Approach 122 650 BAF Victor Blue 256 075 Wing Ops Bullrush 123 100 NATO SAR 257 800 NATO Tower 123 300 NATO GCA Final 277 900 Ground 127 000 Wing Ops 278 300 Heli Ship pri 129 325 Belga Radar Info 282 100 NATO Scene of SAR 129 750 BAF GCA Final 282 800 NATO SAR Combined 134 325 2 Sm Air Air 294 900 2 ATAF Common Ops 137 875 2 Sm Air Air 317 500 NATO Fixer Guard 138 275 TLP Ops 317 600 Belga Radar 139 800 BAF Victor Yellow 340 300 NATO ATC 139 975 BAF GCI V6 340 700 GCA 140 225 BAF Victor White 344 000 NATO Director 140 275 BAF GCI V7 356 000 Approach 140 325 BAF GCI V9 362 300 NATO Approach 140 425 BAF GCI V8 WOC QRA 363 150 GCA 140 475 1 Sm Flt Safety 385 400 NATO Final 141 375 OCU Flt Safety 141 425

    Original URL path: http://www.on4sh.be/scanner/millitlucht.html (2016-04-26)
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  • SCANNER FREQUENTIELIJST BELGIE
    930 NMBS factage Gent 457 700 NMBS werkplaats E tractie Gent 457 850 NMBS station treinen Geraardsbergen 166 090 Civiele Bescherming 3e colonne mobiel Ghlin 119 500 Hoofd Verkeerstoren Grimbergen 433 925 SSTV amateur repeater Heist O D B 145 625 2mtr amateurs Henegouwen 70 260 Wegenhulp Henegouwen 155 550 Electrabel Kempen 145 225 Clubfreq N O K Kempen 446 5625 Tram langs de Belgische kust Knokke Heist 356 000 Tower Mil Koksijde 164 510 Belgische Wielerbond Ronde van Vlaanderen Landelijk 147 575 GMIC Landelijk 429 950 VRT radio moto wielrennen Ronde van Vlaanderen Landelijk 46 610 Draadloze telefoon Landelijk 46 630 Draadloze telefoon Landelijk 46 670 Draadloze telefoon Landelijk 46 830 Draadloze telefoon Landelijk 46 860 Draadloze telefoon Landelijk 46 925 Draadloze telefoon Landelijk 46 975 Draadloze telefoon Landelijk 49 350 Draadloze telefoon Landelijk 49 530 Draadloze telefoon Landelijk 49 830 Draadloze telefoon Landelijk 930 040 Draadloze telefoon Landelijk 931 4625 Draadloze telefoon Landelijk 146 175 Luchtballonnen Nederlandse ballonnen 122 500 Landelijk 146 790 Diverse evenementen o a popfestivals en culturele manifestaties Landelijk 147 200 Diverse evenementen Landelijk 147 300 Diverse evenementen Landelijk 160 140 Diverse evenementen landelijk 160 410 Diverse evenementen Landelijk 166 440 100 Nationaal Landelijk 156 150 Marifoon kanaal 3 Landelijk 156 300 Marifoon kanaal 6 Landelijk 156 350 Marifoon kanaal 7 Landelijk 156 400 Marifoon kanaal 8 Landelijk 156 450 Marifoon kanaal 9 Landelijk 156 475 Marifoon kanaal 69 Landelijk 156 500 Marifoon kanaal 10 Landelijk 156 525 Marifoon kanaal 70 Landelijk 156 550 Marifoon kanaal 11 binnenvaart Landelijk 156 600 Marifoon kanaal 12 Landelijk 156 650 Marifoon kanaal 13 Landelijk 156 675 Marifoon kanaal 73 Landelijk 156 700 Marifoon kanaal 14 Landelijk 156 750 Marifoon kanaal 15 Landelijk 156 800 Marifoon kanaal 16 Landelijk 156 850 Marifoon kanaal 17 Landelijk 156 875 Marifoon kanaal 77 onderling verkeer Landelijk 156 900 Marifoon kanaal 18 Landelijk 156 925 Marifoon kanaal 78 Landelijk 156 950 Marifoon kanaal 19 Landelijk 156 975 Marifoon kanaal 79 Landelijk 157 000 Marifoon kanaal 20 Landelijk 157 025 Marifoon kanaal 80 Landelijk 157 050 Marifoon kanaal 21 Landelijk 157 100 Marifoon kanaal 22 Landelijk 157 125 Marifoon kanaal 82 Landelijk 157 150 Marifoon kanaal 23 Landelijk 157 175 Marifoon kanaal 83 Landelijk 157 200 Marifoon kanaal 24 Landelijk 157 225 Marifoon kanaal 84 wal Landelijk 157 250 Marifoon kanaal 25 wal Landelijk 157 275 Marifoon kanaal 85 Landelijk 157 300 Marifoon kanaal 26 Landelijk 157 325 Marifoon kanaal 86 Landelijk 157 350 Marifoon kanaal 27 Landelijk 157 375 Marifoon kanaal 87 Landelijk 157 400 Marifoon kanaal 28 Landelijk 157 425 Marifoon kanaal 88 Landelijk 160 550 VRT Straalverbindingen Landelijk 162 900 VRT Landelijk 163 110 VRT Landelijk 181 300 Draadloze microfoons met hoog vermogen 3w radio en TV Landelijk 181 700 Draadloze microfoons met hoog vermogen 3w radio en TV Landelijk 181 945 Draadloze microfoons met hoog vermogen 3w radio en TV Landelijk 183 600 Draadloze microfoons met hoog vermogen 3w radio en TV Landelijk 409 900 VRT Beeldregie Landelijk 409 975

    Original URL path: http://www.on4sh.be/scanner/overige.html (2016-04-26)
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  • HAM PREFIX LIST
    31 61 KH6 KH7 Hawaii Isl 31 61 KH7K Kure Isl 31 61 KH8 American Samoa 32 62 KH9 Wake Isl 31 65 KH0 Mariana Isl 27 64 KL7 Alaska 01 01 02 KP1 Navassa Isl 08 11 KP2 Virgin Isl Maagden Eilanden 08 11 KP3 KP4 Puerto Rico 08 11 KP5 Desecheo Isl 08 11 LA LN Norway 14 18 L LU LW Argentina 13 14 15 16 LX Luxembourg 14 27 LY Lithuania Litouwen 15 29 LZ Bulgaria 20 28 OA OC Peru 10 12 OD Lebanon 20 39 OE Austria Oostenrijk 15 28 OG OH OI Finland 15 18 OHo Aland Isl 15 18 OJo OHoM Market Reef 15 18 OK OL Czech Republic 15 28 OM Slovak Republic 15 28 ON t m OT Belgium 14 27 OX Greenland 40 05 75 OY Faroe Isl 14 18 OZ Denmark 14 28 P2 Papua New Guinea 28 51 P4 Aruba 09 11 P5 North Korea 25 44 PA PB PD PE PI The Netherlands 14 27 PJ2 4 9 Neth Antilles Bonaire Curacao 09 11 PJ7 5 8 St Maarten Saba St Eustatius 08 11 PP t m PY Brazil 11 12 13 14 15 PPo PYoF Fernando de Noronha 11 13 PPo PYoS St Peter St Paul s Rocks 11 13 PPo PYoT Trindade Martim Vaz Isl 11 15 PZ Surinam 09 12 R1FJ Franz Josef Land 40 75 R1MV Malyj Vysotskij Isl 16 29 S2 Bangladesh 22 41 S5 Slovenia 15 28 S7 Seychelles 39 53 S9 Sao Tome Principe 36 47 So Western Sahara 33 46 SA t m SM Sweden 14 18 SN t m SR 3Z Poland 15 28 ST Sudan 34 48 SU Egypt 34 38 SV SZ J4 Greece Griekenland 20 28 SV5 J45 Dodecanese Rhodos 20 28 SV9 J49 Crete 20 28 SV2A SY Mount Athos 20 28 T2 Tuvalu 31 65 T3o West Kiribati 31 65 T31 Cent Kiribati 31 62 T32 East Kiribati 31 61 62 63 T33 Banaba Isl 31 65 T5 6O Somalia 37 48 T7 San Marino 15 28 T9 Bosnia Herzegovina 15 28 TA TB TC Turkey TA1 behoort tot Europa 20 39 TF Iceland 40 17 TG TD Guatemala 07 11 TI TE Costa Rica 07 11 TI9 Cocos Isl 07 11 TJ Cameroon 36 47 TK Corsica 15 28 TL Centr African Rep 36 47 TN Congo 36 52 TR Gabon 36 52 TT Chad 36 47 TU Ivory Coast 35 46 TY Benin 35 46 TX Chesterfield Islands 39 53 TZ Mali 35 46 UA 1 3 4 6 RA RZ European Russia 16 19 29 30 UA2 RW2 Kaliningrad 15 29 UA UI 8 9 o RA RZ Asiatic Russia 16 17 18 19 21 27 30 33 UJ t m UM Uzbekistan 17 30 UN t m UQ Kazakhstan 17 29 30 31 UR t m UZ EM EO Ukraine 16 29 V2 Antigua Barbuda 08 11 V3 Belize 07 11 V4 St Kits Nevis 08 11 V5

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  • Q-Codes
    Very Low Frequency FW Fighter Wing USAF FWA Fixed Wireless Access fwd forward FWIW For What It s Worth FY Fiscal Year FYI For your information FZ freezing FZRANO freezing rain sensor not available G Conductance reciprocal of R in mhos ohm backwards G Gust G SWF Gradual Shortwave Fadeout ionospheric disturbance G TOR Golay Transmissions Over Radio Kantronics version of PACTOR G T G over T antenna gain divided by noise temperature G1 Asst Chief of staff personnel US Army G2 Asst Chief of staff intelligence US Army G3 Asst Chief of staff operations and plans US Army G4 Asst Chief of staff logistics US Army G5 Asst Chief of staff civil affairs US Army G6 Asst Chief of staff information mgmt US Army GA 1 CW prosign go ahead GA 2 CW brevity code Good Afternoon GaAs Gallium Arsenide GaAsFET Gallium Arsenide Field Effect Transistor GAFRAN Stationary German Air Force GAK Government Access to Key GaN Gallium Nitride Gantsec Greater Antilles Section US military federal out of Puerto Rico GAO General Accounting Office US Government GATM Global Air Traffic Management GATR ground to air transmitter receiver GBDL Ground Based Data Link GBS Ground Based Sensor GCA Ground Controlled Approach GCBS Ground Control Bombing System GCCS Two different systems GCCS 1 Global Command Control System obsolete US Air Force GCCS 2 Global Command Control System 1992 data network plan to replace WWMCCS computers GCHQ Government Communication Headquarters G UK comint GCMP Guam Composite Broadcast obsolete USCG GCN 1 ground communications network GCN 2 ground control network GD CW brevity Good GDOC Geographical Display Operations Computer GE 1 General Electric GENSER general service GENTEL General Telephone Company GEO Geosynchronous Earth Orbit GEODSS Ground based electro optical deep space surveillance GEOS 1 Geodynamic experimental ocean satellite GEOS 2 Geomagnetic earth observation system GEOS 3 Graphic Environment Operating System GEP Ground Entry Point GETS Government Emergency Telecommunications Service US NCS GFAE Government furnished aerospace equipment GFE 1 Government furnished equipment GFE 2 God Furnished Equipment ionosphere GFI 1 Government furnished information GFI 2 Ground Fault Interrupter GFM Government furnished material GFP Government furnished part GFP Government furnished property GG Transmission is in German GHFS Global High Frequency System US Air Force GHz GigaHertz GI 1 Government Issue GI 2 Old slang from above U S soldier GID Group Identification GIF Graphics Interchange Format first used on CompuServe GIGO Garbage In Garbage Out first rule of computing GIS Geographical Information System GLONASS Global Navigation Satellite System Russian GPS GM 1 CW brevity code Good Morning GM 2 General Motors GM 3 General Manager GMDSS Global Maritime Distress Safety System GMF Ground mobile forces GMRS Gneral Mobile Radio System GMS Geostationary Meteorological Satellite Japanese GMT Greenwich Mean Time obsolete kept only by BBC GNA Gulf News Agency GNC 1 guidance and navigation computer GNC 2 guidance navigation and control gnd ground GNDCON Ground Control gnu Gnu is Not Unix freeware op system GO General Officer GOA Gone on Arrival police GOES Geosynchronous Oceanic Environmental Satellite GOGO government owned government operated GOJ Government of Japan GORIZONT Moscow State University Geostationary Monitor satellite GOSIP Government Open Systems Interconnection Profile UK US gov Government site Internet GOWON Gulf Offshore Weather Observing Network gp Group GPM Gallon s per minute GPO 1 Government Printing Office US GPO 2 General Post Office GPS Global Positioning System GR Hail from French GRADU Gradual weather change GRC General Radio Communications AN GRC xxx grep Global Regular Expression Print Unix text search grp Group GRT Gross register tonnage GS General support GS Group Separator ASCII GS small hail and or snow pellets GSA General Services Administration US GSAC Ground support associate contractor GSC 1 Ground systems controller GSC 2 Ground support contractor GSCO Ground systems control officer GSD General support division GSE Ground support equipment GSF GPS support facility GSFC Goddard Space Flight Center Greenbelt MD GSMP General Switch Management Protocol GSTS Ground based surveillance and tracking system GTC Greek Telegraphy Club aka SV CW C GTO 1 geosynchronous transfer orbit GTO 2 fast car made by Ferrari Gran Turisimo Omologato GTO 3 not quite so fast car made by Pontiac GTOC Geosynchronous transfer orbit capability GTS Global Telecommunication System WMO GUI Graphical User Interface GUID Globally Unique Identifier GVAR GOES Variable GW 1 Gigawatt GW 2 Ground wire GW 2 CW brevity code Good Evening GWARC General World Administrative Radio Conference GWEN Ground wave emergency network VLF strategic net GWT Gross Weight Tonnage H Henry unit of inductance h w Hardware H24 All 24 hours station operates continuously HA Hotel Alpha human remains HAARP HF Active Auroral Research Program HAAT Height Above Average Terrain HAC 1 higher authority communications USAF HAC 2 heading alignment circle NASA HAC 3 Hughes Aircraft Company HAL 1 High order Assembly Language space shuttle computers named for HAL 2 Heuristically programmed Algorithmic Computer 2001 A Space Odyssey HAMS Hilltop Amateur Mastertie System old big SoCal 440 MHz system HAR Highway Advisory Radio HARCO Harris Radio Company makes HF setups HARM High Speed Anti Radiation Missile HBI Horizontal Blanking Interval TV HBT Heterojunction Bipolar Transistor HC ARQ Hagelin Cryptos simplex teleprinter system HCP Health and comfort package HD 1 Hard Disk HD 2 High Density HDB High Density Bipolar HDD Hard Disk Drive HDLC High level Data Link Control old synchronous computer protocol HDSL High rate Digital Subscriber Line HDTV High Definition Television HDX Half duplex HE 1 high energy HE 2 high explosive HEMP High altitude electromagnetic pulse HEMT High electron mobility transfer HEMTT Heavy expanded mobility tactical truck HEO 1 high earth orbit HEO 2 highly elliptical orbit HERE Hazards of Electromagnetic Radiation to Equipment HERF High Energy RF weapons Hertz Unit of frequency named for Heinrich Hertz 1Hz 1 cps HETS 1 heavy equipment transporter system HETS 2 heterodynes Hex Hexadecimal number notation base 16 HF High Frequency 3 30 MHz HFCC High Frequency Coordination Conference HFDL High Frequency Data Link sounds like ANDVT HFDLP HF Data Link Protocol HFGCS High Frequency Global Communication System Scope Command HFMOD Australian Defence Force High Frequency Modernisation Project HFNC HF Network Controller HFO High Frequency Oscillator HFS Hierarchical File System HFSWR High Frequency Surface Wave Radar HHS Dept of Health Human Services HI CW brevity code a laugh all dits easier to send than HA Hi fi High Fidelity audio HICOM High Command net US Navy HIPAS High Power Auroral Stimulation HIPPI High Performance Parallel Interface HISCAT High latitude High altitude High power High frequency High performance Heating and ionospheric Scatter facility research HIWAS Hazardous Inflight Weather Advisory Service HM Her Majesty HMCS Her Majesty s Canadian Ship HMMWV High mobility multipurpose wheeled vehicle hummvee HMS Her Majesty s Ship HNG FEC Hungarian diplo FEC teleprinting system HNMP HF Network Management Protocol HNS Host nation support HOLF Helicopter Outlying Landing Field hp Horsepower HP 1 High Pass filter circuit HP 2 Highway Patrol Hpa Hectopascal HPE CW brevity code Hope to HPI High Priority Intercept global HF comint system HPTS High Power Transmitting System TACAMO HQ Headquarters HQDA Headquarters Department of the Army hr Hour HRC Harmonically Related Carrier CATV channel scheme HRMP HF Relay Management Protocol HRPT High Resolution Picture Transmissions hrs Hours HRT Hostage Rescue Team FBI HSSP HF Station Status Protocol HST 1 Hawaiian Standard Time HST 2 Hubble Space Telescope HT 1 Handie talkie a hand held radio HT 2 Horizontal Tab ASCII HTML Hypertext Markup Language world wide web HTS High Temperature Superconducting HTTP HyperText Transmission Protocol WWW HTTP NG HTTP Next Generation HTTPD HTTP Daemon Unix HTTPS 1 HTTP Server HTTPS 2 HTTP with Secure Sockets Layer HUMINT Human Intelligence spies HVAR High Velocity Aerial Rocket HW CW brevity code How do you copy me hx Signal is a harmonic HYDROLANT Hydro Meterological bulletins for Atlantic Ocean HYDROMET Hydro Meterological bulletin or warning HYDROPAC Hydro Meterological bulletins for Pacific Ocean Hyperfix Hyperbolic Radio Navigation System proprietary name Hz Hertz a cycle per second HZ haze I 1 Current in amperes amps I 2 Packet designator information frame I O Input Output computers i18n Alphabet scheme for multi lingual computer programs IA Information Assurance IAEM International Association of Emergency Managers was NCEM IAF Italian or Irish air force IAGA International Association of Geomagnetism and Aeronomy IANA Internet Assigned Numbers Authority IAPS I Am Pretty Sure IARN International Amateur Radio Network IARP International Amateur Radio Permit to operate overseas IARU International Amateur Radio Union IAS Indicated Air Speed IATA International Air Transport Association IAU International Astronomical Union IAW In accordance with IBDL Inter Battery Data Link IBM 1 International Business Machines company IBM 2 de facto PC standard though few are true blue IBOC In band on channel IC 4 In cloud lightning IC 1 Integrated circuit chip IC 2 Incident Command IC 3 Ice crystals ICAO International Civil Aviation Organization ICAP Internet Calendar Access Protocol ICBM Intercontinental Ballistic Missile ICMP Internet Control Message Protocol ICOM 1 Intercom ICOM 2 Japanese radio mfr ICP Internet Cache Protocol ICPO International Criminal Police Organization see INTERPOL ICQ I Seek You Internet message program ICRC International Committee of the Red Cross ICW interrupted continuous wave ID Identification IDE Intelligent Drive Electronics small HD standard IDE 3 Integrated Developer Environment IDM Improved Data Modem IDSL ISDN Digital Subscriber Line IEC International Electrotechnical Commission IED Imitative electronics deception IEE 1 Institute of Electrical Engineers US merged with IRE IEE 2 Institution of Electrical Engineers UK IEEE Institute of Electrical Electronics Engineers IETF Internet Engineering Task Force IF Intermediate Frequency of a receiver IFE Inflight emergency IFF 1 Identification Friend or Foe IFF 2 Logic operation if and only if IFL International Frequency List ITU doc on fiche or 2 CDs IFOR Implementation Force UN peacekeepers IFR 1 Instrument Flight Rules IFR 2 I Follow Roads IFRC International Frequency Registration Board IGMP Internet Group Management Protocol IGP Interior Gateway Protocols IGRP Interior Gateway Routing Protocol IGY International Geophysical Year big 50 s research interval IHFR Improved high frequency radio IHO International Hydrographic Organization ILS Instrument Landing System IM Intermodulation causes spurious signals or distortion IMA Individual Mobilization Augmentee FEMA IMAP Internet Message Access Protocol IMC Internet Mail Consortium IMD Intermodulation Distortion IMHO In My Humble Opinion Internet IMI CW prosign interrogative more often written IMO 1 International Maritime Organization part of UN IMO 2 In My Opinion Internet IMS Integrated Maritime Surveillance IMSA International Municipal Signal Association IMSP Internet Message Support Protocol IMTS Improved Mobile Telephone System in inch INA Iraqi News Agency indiv individual s INEFC Interagency National Emergency Fire Cache INFOSEC Information systems security ING International Notification Group of IRAC inHg inch of Mercury air pressure INMARSAT Intl Maritime Satellite Org a consortium leases bandwidth on Marecs Intelsat Marisat for ship use INMARSAT A Inmarsat mobile voice data terminal INMARSAT B Improved version replaced A INMARSAT C Data only INMARSAT terminal also for SAFETYnet INMARSAT E INMARSAT EPIRB INMARSAT M INMARSAT terminal voice only not GMDSS compliant INO Indian Ocean MWARA INS 1 Immigration Naturalization Service US INS 2 Inertial Navigation System INSCOM US Army Intelligence and Security Command INSCOM Intelligence and Security Command Int International interrupted interrupt intel intelligence Internet Global interconnection of regional nets using TCP IP InterNIC Internet Network Information Center INTERPOL International Criminal Police Organization Intl International internal IOC Index of co operation a fax parameter IOM Installation operation and maintenance IONCAP Ionospheric Communications Analysis and Prediction original prediction algorithm still used IOR Indian Ocean Region IOS Indian Ocean Station NASA IP Internet Protocol IPA Intermediate power amplifier IPI Intelligent Peripheral Interface IPng IP next generation IPS Inches per second IPS Ionospheric Prediction Service Australia original name for space weather agcy IPSS International Packet SwitchStream now GNS UK IPT Integrated Program Team IPX Internetwork Packet Exchange Novell IQSY International Year of the Quiet Sun 1960 s research interval IR 1 Infrared IR 2 Instrument route numbered military training route IRA International Reference Alphabet IRAC Interdepartment Radio Advisory Committee part of US NTIA IRBM Intermediate Range Ballistic Missile IRC 1 International Reply Coupon IRC 2 Internet Relay Chat world s primo time waster IRC 3 International Red Cross IRC 4 Incrementally Related Carrier CATV channel scheme IRE Institute of Radio Engineers now IEEE IRI Ionospheric Research Instrument transmitter part of HAARP IRINT Infrared intelligence IRIS Improved Radio Ionospheric Sounder IRQ Interrupt request computer hardware IRS 1 Information Receiving Station SITOR IRS 2 Internal Revenue Service US IRS 3 Infernal Revenue Service U IRS Information Receiving Station IS 1 Interval signal IS 2 Intermediate Standard formerly RS ISA 1 Industry Standard Architecture PC AT bus ISA 2 In Session Activation telco ISABPS Integrated Submarine Automated Broadcast Processor System ISAM Indexed Sequential Access Method ISB 1 Independent Sideband ISB 2 Intermediate Staging Base ISC Initial Scope Command phase I ISD Inverted Scanning Direction radiofax ISDL ISDN Digital Subscriber Line ISDN Integrated services data network telco ISF International Science Foundation ISMLS Interim Standard Microwave Landing System ISO International Organisation for Standardisation ISODE ISO Development Environment ISP Internet service provider ISR In System Reprogrammable ISS 1 Information Sending Station SITOR ISS 2 International Space Station ISSO Information Systems Security Organization US ISTR I Seem To Recall ITA International Telegraph Alphabet ITA1 International Telegraph Alphabet 1 Old cablegrams obsolete ITA2 International Telegraph Alphabet 2 Baudot double shift ITA3 International Telegraph Alphabet 3 7 bit ARQ ITA4 International Telegraph Alphabet 4 FM VFT ITO Installation transportation office ITS Institute for Telecommunication Sciences ITU International Telecommunications Union ITU R ITU Sector for Radiocommunications old CCIR ITU T ITU Sector for Telecommunications old CCITT ITU T International Telecommunications Union Telecommunication Standardization Sector ITU TSS ITU Telecommunications Standards Section old CCITT IUGG International Union of Geodesy and Geophysics IUWDS International Ursigram and World Days Service IVAS Inward Voice Activated Services telco IVTT Integrated VERDIN Transmit Terminal IWTS Integrated Terminal Weather System J S Jamming to signal ratio J2 Intelligence directorate at a joint headquarters J3E Single sideband suppressed carrier AM radiotelephony emission designator J4 Logistics directorate at a joint headquarters JAA Joint Aviation Authorities Europe JAFO Just Another F ine Observer JAN Joint Army Navy spec JANA Jamahiriyah News Agency JANET Joint Academic NETwork UK JAR Joint Aviation Requirements Europe JASORS Joint Advanced Special Ops Radio System JASORS Joint Advanced Special Operations Radio System JATACS Joint Advanced Tactical Command and Control System JATCC Joint Air Traffic Control Center JAWSAT Joint Air Force Weber State University Satellite JCS Joint Chiefs of Staff JCSE Joint Communications Support Element JDF Japanese Defense Force JDISS Joint Deployable Intelligence Support System JEDEC Joint Electronic Device Engineering Council Jeep Believed from General Purpose military vehicle now a tradename JFC Joint force commander JFET Junction Field Effect Transistor JIATF E Joint Interagency Task Force East incorporates JTF 4 JIATF S Joint Interagency Task Force South inc JTF 6 JIATF W Joint Interagency Task Force West inc JTF 5 JINTACCS Joint Interoperability of Tactical Command and Control Systems JIT Just In Time JAVA Compiler proprietary to Sun JITC Joint Interoperability Test Command US JIVE Jamming and Interception Vulnerability Estimator JJ Transmission is in Japanese JJ Joprep Jiffy obsolete SAC weather report form JJY Japanese standard frequency time station JMC Joint movement center JMPA Joint Military Postal Agency JMRO Joint medical regulating office JOPES Joint Operations Planning and Execution System JOPREP Joint Operations Report JORN Jindalee Operational Radar Network Australian OTH B JORN Jindalee OTH Radar Network JOSAC Joint Operational Support Airlift Center JOTS Joint Interoperability Targeting System JOVIAL Jules Own Version of the International Algebraic Language once used by USAF JP 1 Joint publication JP 2 Jumper connection JP4 Jet Propulsion 4 military jet fuel JPATS Joint Primary Aircraft Training System JPEG Joint Photographic Experts Group lossy compression for pictures JPL Jet Propulsion Laboratory CA NASA JPNIC Japanese Network Information Center JRCC Joint Rescue Coordination Center JRTC Joint Readiness Training Center Ft Polk LA JSC Johnson Space Center TX JSC Joint Spectrum Center JSF Joint Strike Fighter JSMSw Joint Spectrum Management Spectrum for Windows software JSORS Joint Advanced Special OPS Radio System JSTARS Joint Surveillance Target Attack Radar System aka Joint STARS aircraft heard on HF during Haitian operation JTF Joint Task Force usually US War on Drugs JTF 4 Caribbean drug interdiction unit out of Key West part of JIATF E JTF 5 Pacific coast drug unit part of JIATF W JTF 6 South Central America drug unit part of JIATF South JTFEX Joint Task Force Exercise JTIDS Joint Tactical Information Distribution System JU JTIDS Unit net member like a PU in Link 11 JUH MTF Joint user handbook for message text format JWICS Joint Worldwide Intelligence Communications System K 1 1024 decimal of anything loosely from hexadecimal K 2 CW prosign Go Ahead technically an Invitation To Transmit k A thousand of anything in decimal short for kilo K Index Logarithmic 3 hourly geomagnetic activity reading k c Kilocycles K cs Kilocycles per second kiloHertz KA9Q Packet radio protocol from callsign of its inventor KAM Kantronics All Mode packet digital controller KAWN Identifier attached to AWN weather products as relayed by several HF stations KB Keyboard kB Kilobit kilobaud kb s kilobits per second KBD Keyboard kBd Kilobaud Kbps Kilobits per second kc Kilocycles per second now kHertz KCNA Korean Central News Agency kcs Kilocycles per second now kHertz KGB Komitet Gossudarstwennoy Besopasnostij transliterated from Russian by Klingenfuss old USSR comint replaced by FAPSI KH Keyhole optical recon satellite KH 12 resembles Hubble kHz KiloHertz KISS Keep it simple stupid packet radio mode engineering golden rule km kilometer kMc Kilo megacycle now gigahertz knot Nautical mile hour KNRM Koninklijke Nederlandse Redding Maatschappij Dutch SAR org Kp Planetary K index kph kilometer per hour KSC Kennedy Space Center Cape Canaveral FL KSCPAO Kennedy Space Center Public Affairs Office NASA ksh Korn shell Unix KSR Keyboard Send Receive kt knot nautical mile per hour KT knots Ku band 12 18 GHz microwave band kV Kilovolt KVA KiloVolt Amp s can kW in highly reactive circuit kW Kilowatt L Inductance in Henrys L left with reference to runway designation LA Low altitude Ladar Laser Radar LAN Local Area Network LANL Los Alamos NM National Laboratory LANTAREA USCG Atlantic Area LAPD 1 Link Access Procedure D Channel LAPD 2 Los Angeles Police Department famous organized crime family LAPM Link access protocol for modems LASER Light Amplification by Stimulated Emission of Radiation LAST last observation before a break in coverage at a manual station LBA Logical Block Addressing Disk access LC Limited Coastal service LCAC Landing Craft Air Cushioned large hovercraft LCC Launch Control Center LCD Liquid Crystal Display LCMP Atlantic Composite Broadcast LCP Link Control Protocol PPP LCS Limited Coastal Station LCU Landing Craft Utility US Army LDAP Lightweight Directory Access Protocol LDF Lightweight digital facsimile LDOC Long Distance Operational Control civil aviation LDP Landing Decision Point LDR 1 Low Data Rate LDR 2 Loader LDTWA Long Dual Trailing Wire Antenna TACAMO LEARN Law Enforcement Amateur Radio Network LEASAT Leased Satellite US military comm LED Light Emitting Diode LEO Low Earth Orbit Little LEO a data satellite LES Land Earth Station LF 1 Low Frequency 30 300 kHz LF 2 Linefeed LFO Low frequency oscillator LG Logistics Group LHCP Left hand circular polarization Lidar Light Detection Ranging light radar LIM 1 Lotus Intel Microsoft original spec for PC extended memory LIM 2 Line interface module LINCOMPREX Link Compression and Expansion an ACSB system LIRL Low Intensity Runway Lights LL Landline Lima Lima LLC 1 Logical Link Control LLC 2 Limited Liability Corporation US LLNL Lawrence Livermore National Laboratory LLP Limited Liability Partnership US LLWAS Low Level Wind Shear Alert System LMAO Laughing My A Off Internet LMCC Land Mobile Communications Council LO Local oscillator of a receiver LOC 1 lines of communication LOC 2 location LOGCAP Logistics Civil Augmentation Program LOGPAC Logistics package LOI Low Opportunity of Intercept LOJACK Vehicle locator beacon activated DF d by police LOL Laughing Out Loud internet LORAC LOng Range Long Range Accuracy NASA booster recovery LORAN Long Range Navigation LOS 1 Loss Of Signal LOS 2 Line of sight LOTS logistics over the shore LP 1 Long Playing old records LP 2 Low pass filter circuit LP 3 Linking Protection US mil ALE security LPB Logistics preparation of the battlefield LPD Line Printer Daemon LPFM Low Power FM broadcasting LPI Low Probability of Intercept LPM Lines per minute LPR Line Printer LPRS Low Power Radio Service FCC LPT Logistics preparation of the theater LPTV Low Power TV broadcasting LQA Link Quality Analysis databursts heard from ALE radios LRA Landing Rights Airport LRC Longitudinal Redundancy Check computing LRCOC Long Range Company Operational Control LSB Lower Sideband LSDIS Light and Special Division Interim Sensor US Army LSE Logistics support element LSI Large scale integration of chips LST 1 Landing ship tank LST 2 Local Standard Time LSV Logistic Support Vessel US Army LTG lightning LTR Letter s LTRS Letters case Baudot lower case LUF Lowest Usable Frequency varies with path LUT Local User Terminal LWR lower LZW Lempel Ziv Welch lossless compression algorithm for data M Mega meg a million of anything or 1 048 576 bytes hex m Meter 39 37 inches M minus less than M Minus Below zero C M JPEG JPEG used for moving pictures cf JPEG MPEG M S Motor Ship also MS M S m v Motor Vessel also MV M V Motor Vessel also m v mA milliamperes Mac Macintosh computer MAC 1 Military Airlift Command now AMC MAC 2 Media Access Control computer networks MACOM Major command MacTCP TCP IP package for Macintosh MAFFS Modular Airborne Fire Fighting System tank for C 130 MAFOR Maritime weather forecast MAGIS Marine Air Ground Intelligence System MAN Metropolitan Area Network halfway between a LAN and a WAN MANPAD Man Portable Air Defense MAP Maghreb Arabe Presse MAPI Mail Messaging Applications Programming Interface MAPS Mail Abuse Prevention System Internet MARC MAchine Readable Catalog MARO Maritime Air Radio Organization MARS Military Affiliate Radio System US MARSA Military Assumes Responsibility for Separation of Aircraft MASER Microwave Amplification by Stimulated Emission of Radiation MASH mobile army surgical hospital may be obsolete MASM Macro Assembler computer code MATS Military Air Transportation Service became MAC now AMC MAU Media Attachment Unit a network transceiver MAYDAY Prosign Distress traffic follows repeated 3 times mb millibar MB Megabyte MBDL Missile Battery Data Link MBKS Multi Button Key Set telco MBO Mailbox MBONE Multicast Backbone Mbps Megabytes per second MBR Master Boot Record boot sector MCA Movement control agency MCC Master Control Center MCC Movement control center MCFB Multi Channel Fleet Broadcast MCM Mine Countermeasures MCP Multimode Communications Processor packet MCS Mission Communications System MCS P Maneuver Control System Phoenix US Army MCVFT Multichannel Voice Frequency Telegraph multiplex RTTY MDT 1 Mobile Data Terminal usually police MDT 2 Mountain Daylight Time US zone includes Rockies med medical MEDAFS Mine Warfare Environmental Data Analysis and Fusion System MEDCOM Medical command MEDICAL Voice prosign attached to c s of vessel with emergency medical supplies or patients pronounced MAY DEE CAL MEDICO Emergency Medical Communications MEDLOG Medical logistics MEL Maximum Elevation of a spacecraft MEMA Massachusetts Emergency Management Agency MERS Mobile Emergency Response Support FEMA MET Meterological Met Office Weather office at a base METAR Meteorological observation code for routine aviation METAREA Meteorological Area same as a NAVAREA see WMO METARS Plural of METAR Meteo Meteorological METOC Meteorological and Oceanographic Metro Meteorological office METSAT Meterological Satellite MF 1 Medium Frequency 300 3000 kHz MF 2 Multifrequency MFA Ministry of Foreign Affairs MFD Modulated Fractional Division MFM Modified Frequency Modulation Miller Coding MFSK Multiple Frequency Shift Keying mgt management MHD Magnetohydrodynamics behavior of plasmas in magnetic fields such as the ionosphere and sunspots MHE materials handling equipment MHS Message Handling System MHz MegaHertz mi mile 1 6 km MI Military intelligence especially in UK MI shallow MI5 Directorate of Military Intelligence group 5 domestic MI6 Directorate of Military Intelligence group 6 foreign aka SIS MIB Management Information Base MID 1 Middle East MWARA MID 2 Maritime Identification Digits country code prepended to MMSI MID Maritime Identification Digit MIDS Multifunctional Information Distribution System MIFG Shallow Fog MIJI Meaconing Intrusion Jamming Interference Jammer writeup Mil 1 Military Mil 2 Milliampere MIME Multipurpose Internet Mail Extensions allows attachment of binaries to letters MIMS Medical Information Management System min Minute MINIMUF Miniature Maximum Usable Frequency calculator classic BASIC MUF prediction algorithm MINREX Ministerio de las Relaciones Exteriores Cuban news agency MIR Not an acronym transliteration of Russian for Peace MIREX Mir Experiment amateur robot packet station on Mir MIRL Medium Intensity Runway Lights MIT Massachussetts Institute of Technology mkr Marker ML Machine language how computers store instructions MLB Motor Lifeboat MLS Microwave Landing System MLSO Mauna Loa Solar Observatory MLT Magnetic Local Time MM Maritime mobile mm Millimeter MMC materiel management center MMS Maritime Mobile Service MMSI Maritime Mobile Service Identity code for DSC MMX Multimedia extensions microprocessor architecture MNCS Master Net Control Station MNP Modem Network Protocol MOA Military Operation Area Mob Mobile MOC 2 Ministry Of Commerce Canada MOC 1 Mission Operation Center MOCA Minimum Obstruction Clearance Altitude Mod Modification to radio MoD Ministry of Defence UK Mode A SITOR A ARQ Mode B SITOR B FEC Modem Modulator Demodulator MOOTW Military operations other than war MOP Measure Of Performance MOPP mission oriented protection posture 0 4 4 being full suit MOS Metallic Oxide Silicon MOSFET MOS Field Effect Transistor MOSS MIME Object Security Services MOTD Message Of The Day MOTIS Message Orientated Text Interchange Service ISO version of MHS MOV moved moving movement MOX Manually Operated Switching MP 1 Military Police US MP 2 Member of Parliament UK MP 3 Multiprocessor computer h w MP Magnetopause MP3 MPEG Level 3 CD quality compression scheme MPEG Motion Picture Expert Group lossy compression for video mph mile per hour MPSA Military Postal Service Agency MPSAP Mobile Public Safery Answering Point MPX Multiplex MR Magnetoresistive MRB Marine Radio Beacon MRC Mobile Radio Communications MRCC Maritime Rescue Coordination Center MRE meal ready to eat MRO medical regulating office MRS Mountain Radio Service MRT Mountain Rescue Team ms millisecond MS Motor Ship MS Master Station MSB main support battalion MSC Military Sealift Command MSC Military Seaflift Command US MSE mobile subscriber equipment MSF English standard frequency time station MSFC NASA Marshall Space Flight Center msg Message MSI Maritime Safety Information MSI Marine Safety Information MSI Maritime Safety Information MSIS Mass Spectrometer Incoherent Scatter research MSR main supply route MSS Mobile Satellite Service MST 1 Mountain US Standard Time zone includes Rockies MST 2 Maintenance support team MT Monitoring Times the bible MT mountains MTA Message Transfer Agent MTBF Mean Time Before Failure MTF medical treatment facility MTI Moving Target Indicator MTMC Military Traffic Management Command mtr Meter either distance unit or measuring device MTU Maximum Transmit Unit TCP IP packet length MUF Maximum Usable Frequency varies with path MUX Multiplex multiplexer mV Millivolt MV Motor Vessel MVS Multiple Virtual Storage large IBM computers MW 1 Medium Wave typically 530 1710 kHz MW 2 MegaWatt mW MilliWatt MWARA Major World Air Route Area MWP Meteorologist Weather Processor MWR Morale welfare and recreation mx Music MX Mail Exchange Record MYM My Mailbox packet MYP Personal Mailbox packet N north N No Change N ISDN Narrowband ISDN N A not applicable N0N Unmodulated steady carrier old A0 NA 1 North America NA 2 Not applicable N A NA Not authorized NAAS Naval Auxiliary Air Station NAB 1 National Assn of Broadcasters NAB 2 Naval Amphibious Base USN Coronado CA SEALs train there NABER National Association of Business Emergency Radio NADC Naval Air Development Center NADEP Naval Air Depot NADGE NATO Air Defence Ground Environment NAEC Naval Air Engineering Center NAF Naval Air Facility US NAFB National Assn of Farm Broadcasters NAK Negative Acknowledgment error in received data ASCII 21d NALF Naval Auxiliary Landing Field NALO Naval Air Logistics Office NAM Number Assignment Module Cellular NANP North American Numbering Plan telco NAOC National Airborne Operations Center aka Nightwatch old NEACP NARTE Natl Assn of Radio Telecommunications Engineers NARTEL North Atlantic Radiotelephone NAS 1 Naval Air Station NAS 2 National Academy of Sciences US NASA 1 National Aeronautics and Space Administration NASA 2 National Acronym Slinging Agency NASTD National Association of State Telecommunications Directors NAT 1 North Atlantic MWARA NAT 2 Network Address Translation NATO North Atlantic Treaty Organization NAV Navigation NAV COMM Airplane Navigation Communication radio NAVAID Navigational aid NAVAREA Navigational Area IMO IHO NAVCEN USCG Navigation Center VA NAVMARCORMARS Navy Marine Corps Military Affiliate Radio Service US NAVMTO Navy Material Transportation Office NAVSAT NAVigation SATellite NAVTEX Navigational Telex Navigational Text 518 kHz SITOR B NAWC Naval Air Warfare Center NAWC WPN Naval Air Warfare Center NAWCAD Naval Air Warfare Center Aircraft Division NAWS 1 Naval Air Weapons Station NAWS 2 Old group call Notice to Allied Warships NB Narrowband NB Noise blanker NBC 1 Nuclear Biological Chemical warfare NBC 2 National Broadcasting Company NBDP Narrowband direct printing RTTY NBDPT Narrowband direct printing telegraphy NBF NetBIOS Frames NBFM Narrowband frequency modulation NBR Narrowband Receiver NBS National Bureau of Standards now NIST NBSV Narrowband Secure Voice NBSVS Narrowband Secure Voice System NCA 1 North Central Asia MWARA NCA 2 National Command Authorities US nuclear button NCAR National Center for Atmospheric Research CO NCC National Coordinating Center for Telecommunications US NCS NCCOSC Naval Command Control and Ocean Surveillance Center NCDC National Climatic Data Center NCEM National Coordinating Council for Emergency Management now IAEM NCFSK Non Coherent Frequency Shift Keying NCIC National Crime Information Center US database of police records NCO Non Commissioned Officer NCPi Netware Core Protocol NCR National Cash Register NCS 1 National Communications System US government NCS 2 Net Control Station NCS 3 Naval Communications Station NCS 4 Network Coordinating Station NCSA National Centre for Supercomputing Applications developed Mosaic web browser which became Netscape Mozilla NCTSI Navy Center for Tactical Systems Interoperability US ND Nondirectional NDB Nondirectional beacon NDIS Network Driver Interface Specification NDS NUDET Detection System see NUDET NE Northeast NEACP National Emergency Airborne Command Post kneecap now NAOC NECN National Emergency Coordination Network NERC North American Electric Reliability Council bulk power delivery NERK Old CW group call obsolete NESDIS National Environmental Satellite Data and Information Service NEST Nuclear Emergency Search Team Flynest NET ROM Network packet radio protocol NetBEUI NetBIOS Extended User Interface NetBIOS Network Basic Input Output System NFCC National Frequency Coordinators Council NFR Navy Fleet Relay USN secure satcom NFS Network File System NGO Nongovernmental organization NHC National Hurricane Center NIC 1 Network Interface Card NIC 2 Network Information Center NiCad Nickel Cadmium battery NiCd Nickel Cadmium battery NICP National inventory control point NIEX No Notice Interoperability Exercise NATO NIFC National Interagency Fire Center US forest fire resources NIFTP Network Independent File Transfer Protocol NIL CW prosign No traffic or I copy nothing NIMBY Not In My Back Yard place people want radio towers NiMH Nickel metal hydride battery NiMh Nickel Metal Hydride battery NIMS Naval Ionospheric Measuring System UK Niner Number nine to distinguish from five NIPRNET Non Classified Internet Protocol Router Network sensitive military net NIS Network Information System NISO National Information Standards Organisation US NISP Networked Information Services Project UK NISS National Information on Software and Services UK NIST National Institute of Standards Technology old NBS NLM Netware Loadable Module extension of Novell Netware NLSP Netware Link Services Protocol nm Nautical Mile about 1 24 statute miles Nm Nautical Mile 1 85 km NMA US Coast Guard COMMSTA Miami now controlled from CAMSLANT NMC 1 National Meteorological Center NMC 2 Call of US Coast Guard CAMSPAC Pt Reyes CA NMEA National Marine Electronics Assn NMF US Coast Guard COMMSTA Boston will be ctld from CAMSLANT NMG US Coast Guard COMMSTA New Orleans will be ctrld from CAMSLANT NMN US Coast Guard CAMSLANT Chesapeake VA NMO US Coast Guard COMMSTA Honolulu NNCC National Network Control Center FAA NNE North northeast nnnn RTTY Telex ending characters NNTP Network News Transfer Protocol USENET NNW North northwest NOAA National Oceanic Atmospheric Administration NOC Network Operation Center NOE Nap Of the Earth low altitude attack NOI Notice Of Inquiry FCC rulemaking NOJ US Coast Guard COMMSTA Kodiak NORAD North American Aerospace Defense Command NORDO 1 No Radio NORDO 2 Aircraft has no radio uses visual signals to tower NORLANT North Atlantic norm normal NOS 1 Amateur version of TCP IP Internet protocols NOS New Old Stock wine or vacuum tubes NOS 2 National Ocean Service NOSC Naval Ocean Systems Center San Diego CA now NCCOSC NOSIG No Significent Weather NOSPECI no SPECI reports are taken at the station NOTAM Notice to Airmen NP North Pacific MWARA NPA Notice of Proposed Amendment NPN Negative Positive Negative transistor type NPR National Public Radio US NPRM Notice of Proposed Rule Making FCC NPS National Park Service US NPSTC National Public Safety Telecommunications Council NRaD Naval Research and Development US NRAO National Radio Astronomy Observatory NRC 1 National Radio Club NRC 2 Nuclear Regulatory Commission US NREN National Research and Education Network faster Internet successor for research sites NRI Net radio interface NRL Naval Research Laboratory US NRO National Reconnaissance Office operates US spy satellites NRV US Coast Guard COMMSTA Guam controlled from CAMSPAC NRWATS Naval Rotary Wing Aircraft Test Squadron NRZ Nonreturn to Zero NRZL Return To Zero Level NRZM Nonreturn To Zero Mark NRZS Nonreturn To Zero Space NS Node switch NS EP National Security Emergency Preparedness NSA 1 National Security Agency US intercept and crypto NSA 2 No Such Agency NSA used to not exist NSA 3 Never Say Anything NSA secrecy policy NSAP Network Service Address Point NSAWC Naval Strike and Air Weapons Center replaces Top Gun NSE National Support Element NSF National Science Foundation US NSFNET National Science Foundation Network old Internet backbone NSK Narrowband shift keying NSTAC National Security Telecommunications Advisory Committee US nT Nanotesla unit of magnetic flux 1nWeber m NT Not Tested NTA 1 National Telecommunications Alliance NCS NTA 2 National telecom administration ITU member bodies NTCN National Telecommunication Coordination Network NTIA National Telecommunications and Information Administration NTM Notice to Mariners NTMS National Telecommunications Management Structure national emergency plan NTN NATO Track Number NTS 1 National Traffic System amateur message network NTS 2 Naval Telecommunications System NTSC 1 National Television Standards Committee US TV standard NTSC 2 Never The Same Color result of using above NTT Nippon Telegraph and Telephone Japanese FCC NUC Nuclear NUCINT Nuclear Intelligence NUCO Numerical Code US Navy NUDET Nuclear detonation NUKO Old group call To All Ships Receiving MERCAST NUL Nothing ASCII 0000 NVG Night Vision Goggles NVIC Navigation Vessel Inspection Circular NVRAM Nonvolatile Random Access Memory NW 1 CW brevity code Now or New NW 2 Northwest NWR NOAA Weather Radio NWS 1 National Weather Service US NWS 2 Naval Weapons Station NWSFO National Weather Service Forecst Office nx News NYSEMO New York State Emergency Management Office O O Owned Operated by broadcast network o l Online O R On request O R Address Originator Recipient Address O S Out of service OARNET Ohio Academic Resources Network OASD C3I Office of the Assistant Secretary of Defense for command control communications and intelligence OBS Ship weather report in standard form OCA Oceanic Control Area OCC Operations Control Center Centre OCD 1 Office of Civilian Defense obsolete OCD 2 Operations Control Division OCNL occasional OCONUS Outside Continental United States OCOT Office of the Chief of Transportation US Army OCR 1 Optical Character Recognition OCR 2 Optically Coupled Regenerative OD 1 Officer of the Day OD 2 Overdose ODBC Open DataBase Connectivity Microsoft ODMP Orbiter Maintenance Down Period NASA OE Operating Expense OEI One Engine Inoperative OEM Original Equipment Manufacturer OFCM Office of the Federal Coordinator for Meteorology OFP Operational Flight Program OG Operations Group OHD overhead OIC Officer In Charge OLF Outlying Landing Field US Navy OLTP On Line Transaction Processing IBM OLX OLE Custom Control MS made it up i didn t OM Male voice Old Man OMEGA Global LF navigation system replaced by GPS OMS ohms Orbital Maneuvering System NASA OOB 1 Out of band OOB 2 Out Of Bounds classic Internet hack OOK On

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