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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

General characteristics

HAM bands
?
Frequency stability
better than ±2 ppm
Tuning steps
1 kHz
Memories
?

Receiver

RX-range
1.6-29.999 MHz
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)
Filters
?
Receiver system
?
IF-frequencies
?
Image rejection
?
Audio output
?

Transmitter

TX-range
1.6-29.999 MHz
Modulations
AM   CW   USB   LSB  
RF-output
5/20 W (PEP)

Connections

Antenna
BNC + Proprietary (military)
Impedance
50Ω
Other
-

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

Other features

Usage
Military communication
Features + options
-
Accessories
-
RigReference ID
5250
MPN
RACAL-TRA-000931

Manuals, diagrams and brochures

No documents available for this particular model.
 
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Reviews & stories

Rating Title Submitted
Syncal 30 9 years ago by etpuah
Best all around radio 9 years ago by w7gg

New and second-hand prices

Estimating the value of a rig can be challenging. We collect prices paid by real hams over the years to help you estimate the value of a used 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 second-hand price of the Racal TRA-931 is around:

  • CAD 326.00 ~ CAD 282.00

Price History Chart

These estimates are based on the following prices:

Year Historic price Condition Submitted by
2017 CAD 287.00 Used / Good eBay
2017 CAD 332.00 Used / Good eBay

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