美军ANURC-101(V)2电台焊马车内配置的东东

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美军ANURC-101(V)2电台焊马车内配置的东东



VHF 100 - 174 , UHF 225 - 400


AN/URC-100 series
The Motorola AN/URC-100 series of radios evolved from the PT-25A Portable Emergency Transceiver (1978).  Prior to nomenclature assignment, the original AN/URC-100 (NSN 5820-01-112-0176) was known as the PRT-250 (Motorola model number).  The design concept of the URC series is to develop a multi-purpose radio system that would accommodate manpack, aircraft, shipboard and vehicular uses in the VHF and UHF air bands.   The design is fully solid state and fully synthesized.  As a manpack set, the radio is nomenclatured the AN/URC-100.  In an LOS/SATCOM configurations, it is known as the AN/URC-101 (NSN 5820-01-112-0177).  For SATCOM applications, the URC-101 had both transmitter output power and receiver sensitivity increased.  Modes of operation for the URC-100 & URC-101 include AM or FM clear or secure voice and a 300 Hz to 2.5 kHz linear swept baseband beacon signal.  Both sets have a frequency range of 116 to 150 MHz and 225 to 400 MHz in 25 kHz steps.

The first variation of the URC-100 appears as the AN/URC-100(V) which replaced the original 116 to 150 MHz VHF band with the tactical 30 to 88 MHz band and saw the addition of the standard 150 Hz squelch tone for compatibility with the VRC-12 series and the PRC-25, PRC-77 series of radio sets.

The variations in the URC-101 include a AN/URC-101(V) which is deemed a data transceiver.   The changes include 5 kHz channel spacing in the 116 to 150 and 225 to 400 MHz bands.  Also, this unit saw the addition of extra RF connectors to the front panel labeled IF, UHF OUT and UHF IN located on the far left of the transceiver between the HANDSET and the UHF ANTENNA connectors. The connectors provide 70 MHz IF baseband compatibility for use with the Motorola PM-15 Adaptive Tactical Modem.

A second variation to the URC-101 includes a VHF band change from the 116 to 150 MHz band to the 100 to174 MHz band in the FM mode only with a 2.5 and 25 kHz spacing and is nomenclatured the AN/URC-101(V)2.  The UHF band remains unchanged and the output RF power is 1.5 or 5 Watts.

With the progression of time and the requirements for a tactical VHF/UHF transceiver, with nomenclature that would stop all confusions of  "which band does this radio operate on?", Motorola released the AN/URC-104 (NSN 5820-01-131-5674) and the AN/URC-111 (NSN 5820-01-152-3185) respectively.  Both sets feature operability in the 30 to 88 MHz band with 150 Hz squelch tone and 225 to 400 MHz band.  Channel spacing is 25 kHz.  The design principals are for a radio set that is suitable for ground-to-air/air-to-ground and tactical point-to-point operations.   The units also operate in clear or secure voice or data modes and are compatible with the KY-57, KY-58 cypher equipment.  All previous URC features are included in these current version radios.

Also introduced at the same time is a specific data transceiver known as the AN/URC-110 (NSN 5820-01-151-4199).  The URC-110 operates in the 116 to 150 MHz band and in the 225 to 400 MHz band in 5 kHz steps.  The URC-110 is designed with a low noise synthesizer to permit operation with tactical modems such as the Motorola PM-15A and meets satellite architecture requirements.  The URC-110 can also function as a repeater/frequency translator.

For LOS/SATCOM use, the AN/URC-112 (NSN 5820-01-151-4198) was introduced and is labeled as an "LOS/SATCOM transceiver".  Frequency coverage includes 160 to 172 MHz with 2.5 kHz channel spacing and 225 to 416 MHz with 25 kHz channel spacing.  The URC-112 can be made compatible with the AN/UYA-7 & AN/GYC-8 transceivers and the AN/UGC-129 and AN/UGC-74 message devices.  The URC-112 will operate in the appropriate mode with the AN/ARC-164, AN/ARC-171 and the AN/WSC-3 transceivers.

Some accessories for the above radio sets includes various AC, DC, AC/DC power supplies and battery boxes, antennae, modems etc...  The most varied accessory appears to be the battery box.  For the most part the "box" or enclosure appears to be common but the inserts vary from a PRC-25 battery insert, a Lithium battery insert PL-1500/URC (PTL-110A) which uses 2 BA-5590/U Lithium batteries, a NiCad battery insert (PP-7962/URC (PTMG-120)) with build-in multi-voltage charger which uses 2 BB-590/U batteries and a rechargeable NiCad "D" cell box complete with built-in 120/240 VAC charger.  Further power sources include a 28 VDC adapter box which employs standard VRC series DC connectors and a universal power supply, the PP-7961/URC (Motorola number PTAD-101A) which includes input voltages from 120/240 VAC and 24 VDC.

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