Listening In to Air-Ground Phone Communications ***************************************** Some people in our hobby find that listening to 800 mhz cellular communications is interesting. Those who do, might find that some real inside, juicy stuff could be found being broadcast from the private jets carrying entertainment industry executives, business leaders, and goverment officials across this great land of ours. The frequency assignments are as follows: Channel Ground Plane 1 454.950 459.950 2 454.900 459.900 3 454.850 459.850 4 454.800 459.800 5 454.750 459.750 6 454.700 459.700 7 454.725 459.725 8 454.775 459.775 9 454.825 459.825 10 454.875 459.875 11 454.925 459.925 12 454.975 459.975 CALL 454.675 459.675 The Ground stations broadcast an annoying tone when not in use. The Planes broadcast in simplex only, while the Ground station broadcast duplex similar to cordless phone base/handset operation. The easiest way to monitor this service is to load first a Plane frequency then a Ground frequency for each channel. After loading all the channels go back and lock out all of the Ground frequencies. Scan the Plane frequencies for simplex transmissions and when you get a hit, press your manual key to jump to the next frequency... the locked out ground frequency broadcasting in duplex! Please keep in mind that the services provided on these frequencies are Common Carrier and perhaps subject to the same laws covering the monitoring of Cellular Phones. In which case it is a violation of federal law to listen to these frequencies. Prepared by EQKimball and........ ag800.txt Al Quaglieri Subj: Air-ground phone freqs The FCC has issued rules on allocation of the 849-851/894- 895 MHz bands for air-ground radiotelephone service. The new action, effective September 9, 1991: 1) changes channel spacing from GTE Airfone Inc.'s de facto standards; 2) orders GTE to make its service available to other air-ground licensees at non-discriminatory rates; 3) divides each channel block into 6 control channels (P-1 through P-6) and 29 communications channels (C-1 through C-29); 4) provides for a communications channel bandwidth of 6 kHz; 5) gives GTE 22 months to modify its current control channel scheme; during this period, GTE can use the lower 20 kHz of each channel block, which includes channels C-1, C-2, and C-3, for control. GTE then has another 38 months during which it can only use a 3.2 kHz control channel in channel C-2 of each channel block. After these transition periods end (September of 1996), GTE must switch to control channels marked P-1 through P-6 in the tables below; 6) empowers the FCC to assign exclusively one control channel to each air-ground licensee; 7) limits the ERP of airborne stations to 30 watts; maximum, and that of ground stations to 100 watts maximum; 8) limits the ERP of ground stations to 1 watt when communicating with aircraft on the ground. GROUND TO AIR CHANNELS (NOTE" "GB" in these listings denotes Guard Band, a series of 3 kHz spacings to separate communications channels from control channels) CH. # CHANNEL BLOCK 10 9 8 7 6 C-1 849.0055 849.2055 849.4055 849.6055 849.8055 C-2 849.0115 849.2115 849.4115 849.6115 849.8115 C-3 849.0175 849.2175 849.4175 849.6175 849.8175 C-4 849.0235 849.2235 849.4235 849.6235 849.8235 C-5 849.0295 849.2295 849.4295 849.6295 849.8295 C-6 849.0355 849.2355 849.4355 849.6355 849.8355 C-7 849.0415 849.2415 849.4415 849.6415 849.8415 C-8 849.0475 849.2475 849.4475 849.6475 849.8475 C-9 849.0535 849.2535 849.4535 849.6535 849.8535 C-10 849.0595 849.2595 849.4595 849.6595 849.8595 C-11 849.0655 849.2655 849.4655 849.6655 849.8655 C-12 849.0715 849.2715 849.4715 849.6715 849.8715 C-13 849.0775 849.2775 849.4775 849.6775 849.8775 C-14 849.0835 849.2835 849.4835 849.6835 849.8835 C-15 849.0895 849.2895 849.4895 849.6895 849.8895 C-16 849.0955 849.2855 849.4955 849.6955 849.8955 C-17 849.1015 849.3015 849.5015 849.7015 849.9015 C-18 849.1075 849.3075 849.5075 849.7075 849.9075 C-19 849.1135 849.3135 849.5135 849.7135 849.9135 C-20 849.1195 849.3195 849.5195 849.7195 849.9195 C-21 849.1255 849.3255 849.5255 849.7255 849.9255 C-22 849.1315 849.3315 849.5315 849.7315 849.9315 C-23 849.1375 849.3375 849.5375 849.7375 849.9375 C-24 849.1435 849.3435 849.5435 849.7435 849.9435 C-25 849.1495 849.3495 849.5495 849.7495 849.9495 C-26 849.1555 849.3555 849.5555 849.7555 849.9555 C-27 849.1615 849.3615 849.5615 849.7615 849.9615 C-28 849.1675 849.3675 849.5675 849.7675 849.9675 C-29 849.1735 849.3735 849.5735 849.7735 849.9735 GB 849.1765 849.3765 849.5765 849.7765 849.9765 to to to to to 849.1797 849.3797 849.5797 849.7797 849.9797 P-6 849.1813 849.3813 849.5813 849.7813 849.9813 P-5 849.1845 849.3845 849.5845 849.7845 849.9845 P-4 849.1877 849.3877 849.5877 849.7877 849.9877 P-3 849.1909 849.3909 849.5909 849.7909 849.9909 P-2 849.1941 849.3941 849.5941 849.7941 849.9941 P-1 849.1973 849.3973 849.5973 849.7973 849.9973 .pa 5 4 3 2 1 C-1 850.0055 850.2055 850.4055 850.6055 850.8055 C-2 850.0115 850.2115 850.4115 850.6115 850.8115 C-3 850.0175 850.2175 850.4175 850.6175 850.8175 C-4 850.0235 850.2235 850.4235 850.6235 850.8235 C-5 850.0295 850.2295 850.4295 850.6295 850.8295 C-6 850.0355 850.2355 850.4355 850.6355 850.8355 C-7 850.0415 850.2415 850.4415 850.6415 850.8415 C-8 850.0475 850.2475 850.4475 850.6475 850.8475 C-9 850.0535 850.2535 850.4535 850.6535 850.8535 C-10 850.0595 850.2595 850.4595 850.6595 850.8595 C-11 850.0655 850.2655 850.4655 850.6655 850.8655 C-12 850.0715 850.2715 850.4715 850.6715 850.8715 C-13 850.0775 850.2775 850.4775 850.6775 850.8775 C-14 850.0835 850.2835 850.4835 850.6835 850.8835 C-15 850.0895 850.2895 850.4895 850.6895 850.8895 C-16 850.0955 850.2855 850.4955 850.6955 850.8955 C-17 850.1015 850.3015 850.5015 850.7015 850.9015 C-18 850.1075 850.3075 850.5075 850.7075 850.9075 C-19 850.1135 850.3135 850.5135 850.7135 850.9135 C-20 850.1195 850.3195 850.5195 850.7195 850.9195 C-21 850.1255 850.3255 850.5255 850.7255 850.9255 C-22 850.1315 850.3315 850.5315 850.7315 850.9315 C-23 850.1375 850.3375 850.5375 850.7375 850.9375 C-24 850.1435 850.3435 850.5435 850.7435 850.9435 C-25 850.1495 850.3495 850.5495 850.7495 850.9495 C-26 850.1555 850.3555 850.5555 850.7555 850.9555 C-27 850.1615 850.3615 850.5615 850.7615 850.9615 C-28 850.1675 850.3675 850.5675 850.7675 850.9675 C-29 850.1735 850.3735 850.5735 850.7735 850.9735 GB 850.1765 850.3765 850.5765 850.7765 850.9765 to to to to to 850.1797 850.3797 850.5797 850.7797 850.9797 P-6 850.1813 850.3813 850.5813 850.7813 850.9813 P-5 850.1845 850.3845 850.5845 850.7845 850.9845 P-4 850.1877 850.3877 850.5877 850.7877 850.9877 P-3 850.1909 850.3909 850.5909 850.7909 850.9909 P-2 850.1941 850.3941 850.5941 850.7941 850.9941 P-1 850.1973 850.3973 850.5973 850.7973 850.9973 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .pa AIR TO GROUND CHANNELS CH. # CHANNEL BLOCK 10 9 8 7 6 C-1 894.0055 894.2055 894.4055 894.6055 894.8055 C-2 894.0115 894.2115 894.4115 894.6115 894.8115 C-3 894.0175 894.2175 894.4175 894.6175 894.8175 C-4 894.0235 894.2235 894.4235 894.6235 894.8235 C-5 894.0295 894.2295 894.4295 894.6295 894.8295 C-6 894.0355 894.2355 894.4355 894.6355 894.8355 C-7 894.0415 894.2415 894.4415 894.6415 894.8415 C-8 894.0475 894.2475 894.4475 894.6475 894.8475 C-9 894.0535 894.2535 894.4535 894.6535 894.8535 C-10 894.0595 894.2595 894.4595 894.6595 894.8595 C-11 894.0655 894.2655 894.4655 894.6655 894.8655 C-12 894.0715 894.2715 894.4715 894.6715 894.8715 C-13 894.0775 894.2775 894.4775 894.6775 894.8775 C-14 894.0835 894.2835 894.4835 894.6835 894.8835 C-15 894.0895 894.2895 894.4895 894.6895 894.8895 C-16 894.0955 894.2855 894.4955 894.6955 894.8955 C-17 894.1015 894.3015 894.5015 894.7015 894.9015 C-18 894.1075 894.3075 894.5075 894.7075 894.9075 C-19 894.1135 894.3135 894.5135 894.7135 894.9135 C-20 894.1195 894.3195 894.5195 894.7195 894.9195 C-21 894.1255 894.3255 894.5255 894.7255 894.9255 C-22 894.1315 894.3315 894.5315 894.7315 894.9315 C-23 894.1375 894.3375 894.5375 894.7375 894.9375 C-24 894.1435 894.3435 894.5435 894.7435 894.9435 C-25 894.1495 894.3495 894.5495 894.7495 894.9495 C-26 894.1555 894.3555 894.5555 894.7555 894.9555 C-27 894.1615 894.3615 894.5615 894.7615 894.9615 C-28 894.1675 894.3675 894.5675 894.7675 894.9675 C-29 894.1735 894.3735 894.5735 894.7735 894.9735 GB 894.1765 894.3765 894.5765 894.7765 894.9765 to to to to to 894.1797 894.3797 894.5797 894.7797 894.9797 P-6 894.1813 894.3813 894.5813 894.7813 894.9813 P-5 894.1845 894.3845 894.5845 894.7845 894.9845 P-4 894.1877 894.3877 894.5877 894.7877 894.9877 P-3 894.1909 894.3909 894.5909 894.7909 894.9909 P-2 894.1941 894.3941 894.5941 894.7941 894.9941 P-1 894.1973 894.3973 894.5973 894.7973 894.9973 .pa 5 4 3 2 1 C-1 895.0055 895.2055 895.4055 895.6055 895.8055 C-2 895.0115 895.2115 895.4115 895.6115 895.8115 C-3 895.0175 895.2175 895.4175 895.6175 895.8175 C-4 895.0235 895.2235 895.4235 895.6235 895.8235 C-5 895.0295 895.2295 895.4295 895.6295 895.8295 C-6 895.0355 895.2355 895.4355 895.6355 895.8355 C-7 895.0415 895.2415 895.4415 895.6415 895.8415 C-8 895.0475 895.2475 895.4475 895.6475 895.8475 C-9 895.0535 895.2535 895.4535 895.6535 895.8535 C-10 895.0595 895.2595 895.4595 895.6595 895.8595 C-11 895.0655 895.2655 895.4655 895.6655 895.8655 C-12 895.0715 895.2715 895.4715 895.6715 895.8715 C-13 895.0775 895.2775 895.4775 895.6775 895.8775 C-14 895.0835 895.2835 895.4835 895.6835 895.8835 C-15 895.0895 895.2895 895.4895 895.6895 895.8895 C-16 895.0955 895.2855 895.4955 895.6955 895.8955 C-17 895.1015 895.3015 895.5015 895.7015 895.9015 C-18 895.1075 895.3075 895.5075 895.7075 895.9075 C-19 895.1135 895.3135 895.5135 895.7135 895.9135 C-20 895.1195 895.3195 895.5195 895.7195 895.9195 C-21 895.1255 895.3255 895.5255 895.7255 895.9255 C-22 895.1315 895.3315 895.5315 895.7315 895.9315 C-23 895.1375 895.3375 895.5375 895.7375 895.9375 C-24 895.1435 895.3435 895.5435 895.7435 895.9435 C-25 895.1495 895.3495 895.5495 895.7495 895.9495 C-26 895.1555 895.3555 895.5555 895.7555 895.9555 C-27 895.1615 895.3615 895.5615 895.7615 895.9615 C-28 895.1675 895.3675 895.5675 895.7675 895.9675 C-29 895.1735 895.3735 895.5735 895.7735 895.9735 GB 895.1765 895.3765 895.5765 895.7765 895.9765 to to to to to 895.1797 895.3797 895.5797 895.7797 895.9797 P-6 895.1813 895.3813 895.5813 895.7813 895.9813 P-5 895.1845 895.3845 895.5845 895.7845 895.9845 P-4 895.1877 895.3877 895.5877 895.7877 895.9877 P-3 895.1909 895.3909 895.5909 895.7909 895.9909 P-2 895.1941 895.3941 895.5941 895.7941 895.9941 P-1 895.1973 895.3973 895.5973 895.7973 895.9973 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .pa GEOGRAPHICAL CHANNEL BLOCK LAYOUT (ground stations using the same channel block must be at least 300 miles apart) LOCATION CH. BLOCK ALASKA Anchorage 8 Cordova 5 Ketchikan 5 Juneau 4 Sitka 7 Yakutat 8 ALABAMA Birmingham 2 ARIZONA Phoenix 4 Winslow 6 ARKANSAS Pine Bluff 8 CALIFORNIA Blythe 10 Eureka 8 Los Angeles 4 Oakland 1 S. San Fran. 6 Visalia 7 COLORADO Colorado Spgs. 8 Denver 1 Hayden 6 FLORIDA Miami 4 Orlando 2 Tallahassee 7 GEORGIA Atlanta 5 St. Simons Is. 6 HAWAII Mauna Kapu 5 IDAHO Blackfoot 8 Caldwell 10 ILLINOIS Chicago 3 Kewanee 5 Schiller Park 2 INDIANA Fort Wayne 7 IOWA Des Moines 1 KANSAS Garden City 3 Wichita 7 KENTUCKY Fairdale 6 LOUISIANA Kenner 3 Shreveport 5 MASSACHUSETTS Boston 7 MICHIGAN Bellville 8 Flint 9 Sault S. Marie 6 MINNESOTA Bloomington 9 MISSISSIPPI Meridian 9 MISSOURI Kansas City 6 St. Louis 4 Springfield 9 MONTANA Lewistown 5 Miles City 8 Missoula 3 NEBRASKA Grand Island 2 Ogallala 4 NEVADA Las Vegas 1 Reno 3 Tonopah 9 Winnemucca 4 NEW MEXICO Alamogordo 8 Albuquerque 10 Aztec 9 Clayton 5 NEW JERSEY Woodbury 3 NEW YORK E. Elmhurst 1 Schuyler 2 Staten Island 9 NORTH CAROLINA Greensboro 9 Wilmington 3 NORTH DAKOTA Dickinson 7 OHIO Pataskala 1 OKLAHOMA Warner 4 Woodward 9 OREGON Albany 5 Klamath Falls 2 Pendleton 7 .pa PENNSYLVANIA Coraopolis 4 New Cumberland 8 SOUTH CAROLINA Charleston 4 SOUTH DAKOTA Aberdeen 6 Rapid City 5 TENNESSEE Elizabethton 7 Memphis 10 Nashville 3 TEXAS Austin 2 Bedford 1 Houston 9 Lubbock 7 Monahans 6 UTAH Abajo Peak 7 Delta 2 Escalante 5 Green River 3 Salt Lake City 1 VIRGINIA Arlington 6 WASHINGTON Seattle 4 Cheney 1 WEST VIRGINIA Charleston 2 WISCONSIN Stevens Point 8 WYOMING Riverton 9