|
|
|
|
|
|
|
 PRC-96 |
| AN/PRC-112 |
 B.E.499 |
|
AN/PRC-112 The old SAR- Radios (abt. 1 million specimen on UHF and VHF) had a simple beacon- funktion without ID possibility. Whe tzhey went off, it was almost impossible to find out if the signal meant an emergency or not. Besided that the listening to analogue SAR- radio- signals was switched off from Feb. 1 1999 on. In case of distress, pilotes can be located with the help of the "AN/ARS-6 Pilot Locating System"; A programmed "Surviver ID Code" is used. The Locating System can selectively locate and aim a special AN/PRC-112. Before the flight, a Program Loader (KY-913 Programmer) writes a surviver ID code and the two programmable channels A and B into the radio.. An unencryped voice communication can be established on 282,2 MHz or the two additionally programmed channels; the beacon- channels are encrypted. Seven channels can be used. : * 121,5 MHz beacon; * 121,5 MHz AM unencrypted; * 282,8 MHz AM unencrypted; * Programmable channel A; * Programmable channel B; * 243 MHz unencrypted; * 243 MHz beacon. The radio is used for: * Radio; * Transponder, enabling distance measuring and personal identifikation ; * Beacon with air-to-ground-funktions; * Using the AN/ARS-6 Pilot Locating System, the exact location of the operator is determined. DME (Distance measuring equipment) is used. This is a transponder- based radio navigation, that detemines the slope- distance to the radio, using teh propagation delay of VHF- or UHF- signals. On the upper side are earphone contacts and the channel/mode- switch. Beacon- channels only can be selected by pressing the channel switch. The front side contains the on/off/loudness- switch; the name plate, and the " DME- Indikator". The indicator blinks eight times when receiver ID is adressed sucessfully by the locating system; and the loudspeaker/microphone. On the lower side are located battery contacts and the contacts for the program loader KY-913.
Technical data:
|
