Racal TRA-931 Mobile Shortwave Transceiver

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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.

Variants
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

Frequency range

RX-range
1.6-29.999 MHz
TX-range
1.6-29.999 MHz
HAM bands
-
Stability
better than ±2 ppm
Tuning steps
1 kHz
Filters
-

Receiver

Modulations
AM   CW   USB   LSB  
Sensitivity
1 µV for S/N > 10 dB
Selectivity
SSB: 2 kHz (-6 dB), 6 kHz (-40 dB)
AM: 10 kHz (-6 dB), 30 kHz (-55 dB)
Receiver system
-
IF-frequencies
-
Image rejection
-
Audio output
-

Transmitter

Modulations
AM   CW   USB   LSB  
RF-Output
5/20 W (PEP)

Connections

Antenna
BNC + Proprietary (military)
Impedance
50Ω

Electrical

Power requirements
24V DC (operates down to 12V DC)
Current drain RX
250 mA
TX
4 A

Physical

Dimensions (w×h×d)
366 × 116 × 275 mm (14.41 × 4.57 × 10.83 in)
Weight
5.00 kg (11.0 lbs) in basic configuration
Form factor
Mobile
Manufactured
Between 197x and 19xx in Great Britain
MPN

Other features

Memories
-
Usage
Military communication
Features + options
-
Accessories
-

Manuals, diagrams and brochures

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What is it worth?

Estimating the value of a rig can be challenging. We collect prices paid by real hams over the years to help you estimate the current value of the Racal TRA-931. Just bought or sold this model? Let us know what you traded it for and help other ham operators!

Based on historic data, today's value of the Racal TRA-931 might be around:

  • CAD 286.00
Price Condition Year User
CAD 287.00 Good / Used 2017 eBay
CAD 332.00 Good / Used 2017 eBay

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Stories & reviews

Best all around radio

Racal TRA-931, Mobile Shortwave Transceiver

i owen one and its a great rig, usb, lsb, am, cw..easy rig to work with, built in gold plated rollor tuner tunes from 1.6-29.999mhz. it has a built in swr meter for tunning, built in dehumidafier, about 11-LBS. w/o battery, i use to pc laptop batterys lithium light, you can run radio from 12-24vdc, 12v less output pwr, receiver good sensitivity, nice rit control good for cw with built in sidetone & delay, receives broadcast stations nice, lacking back light i guess to save pwr, you can switch from 5w or 20w, 2-inputs for 1.6 to 3mhz and 3 to 29.999mhz,2-inputs for headset and cw key, all in all the best all around radio for to money. they run forsale about $700-$1100 depending on etcs with it? from denny w7gg. hope this helps?

Written by w7gg on Jan 15, 2011

Overall
 
Performance
Build quality
Features
User friendlyness
Value for money
Aquired
Good condition in 2010

Syncal 30

Racal TRA-931, Mobile Shortwave Transceiver

Got mine in 2010, I have the battery case, handset, headphones and the whip. Radio can be carried on an Alice Pack with shelf which I have. Excellent receiver and transmitter. 20W from Singapore to Japan (whip)and US (end fed 5m wire acting as vertical with counterpoise). Macho Radio for Macho Ham.

Written by etpuah on Feb 25, 2011

Overall
 
Performance
Build quality
Features
User friendlyness
Value for money
Aquired
Good condition in 2011