The Racal TRA-931 is a manpack HF transceiver. Frequency selection is done by way of 5 decade switches giving a 1 kHz resolution. A search knob allows further tuning within the 1 kHz range.
The TRA-931 housing is made from industrial strength plastic and is water tight. The front panel has 2 connectors for mic/phones/keyer, AF-gain knob, mode-knob and small battery voltage indicator. A number of antennas can be connected to the TRA-931 which can be tuned with an internal antenna tuner (TRA-931A). For ham use 2 BNC connectors for 1.6-3 and 3-30 MHz are very suitable.
TRA931: Syncal 30
TRA931A: As standard set plus auto ATU
TRA931AP: Programmable version of TRA931A
TRA931L: Low temperature version of TRA931 -40 dec C
TRA931P: Programmable Syncal 30 2-8 Mhz 49ch 20W **
TRA931PL: Low temperature version of TRA931P
TRA931PR: Capable of remote control
TRA931X: Multi-role Syncal 30
TRA931XH: Frequency Hopping version of TRA931
TRA931Y: As TRA931X but with component changes for operation at lower temperatures. -25 deg C
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Based on historic data, today's second-hand price of the Racal TRA-931 is around:
These estimates are based on the following prices: