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France
Naval special forces HF radio
- this page is a stub
TR-BP-3B, also written as TRBP3B, is a
spy radio radio set, 1
developed around 1949 by Radio Laboratoire-Jaubert in Nice (France),
for use by the French Navy for short-distance ship-shore and ship-ship
communication.
It was intended for use in non-clandestine (overt) operations,
and works in the 1.5 to 4 MHz band.
A special CW (morse) version was used by SDECE
(now: DGSE).
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The device is housed in a black metal enclosure that measures 360 x 280 x 155 mm
and weights 13 kg. It can be closed with a lid and has a grip at the side for
easier transport. Inside the case are three building blocks: a power supply unit
(PSU), a transmitter and a treceiver; similar to the building blocks of
a British Type 3 Mark II (B2).
Unlike contemporary radio sets – which could only transmit morse code (CW) –
the TR-BP-3A was suitable for the transmission and reception of voice conversions in
Amplitude Modulation (AM), using an externally connected handset.
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The transmitter is crystal controlled, whilst the receiver can be both crystal
controlled and free running, using the build-in Variable Frequency Oscillator
(VFO). The unit must be powered by an external 12V DC source, such as the
battery of a car. Once the antenna and counterpoise wires are connected and the
device is correctly adjusted, the lid can be closed, after which the device
becomes a black box that can be operated from the external remote control unit
with handset. 2
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Strickly speaking it is not a spy radio set, but a naval ship-to-shore radio.
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The external remote control unit and the handset are missing from the
device featured here.
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PLEASE HELP —
We are currently looking for information about the
use of this device in an operational context.
Please help us to expand this page
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- Many screws missing
- Broken parts inside device
- Remote control and handset missing
- Antenna terminal missing
- Power cable missing
- Transmitter crystal missing
- Receiver crystal socket broken
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- Remote control unit (with telephone handset)
- Documentation
- Type and serial number tag
- Antenna socket
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Device Short-wave transceiver Manufacturer Radio Laboratoire-Jaubert (Nice, France) Customers French Navy, SDECE Frequency 1.5 - 4 MHz Bands 2 (1.5-3 MHz + 3-4 MHz) Modulation AM (A3, phone) PSU 1 6 or 12V DC 1 PSU 2 110, 130, 220 or 240 V AC, 50 Hz 1 Dimensions 360 x 280 x 155 mm (remote control unit: 240 x 210 x 100 mm) Weight 13 kg (remote control unit: 4 kg)
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Only one PSU was supplied with the device.
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Type Crystal controlled Modulation AM, (A3, phone) 90% Output 3 Watts
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Receiver Crystal controlled and VFO Output 500 mW into 600Ω
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Receiver 6AK5, 6BA6, 6AK6, 6AL5, 6AK5, 6BE6, 6AK6 Transmitter 6AK5, 6AK6, 6AQ5
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Document kindly provided by Bertrand Velle [3].
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© Crypto Museum. Created: Thursday 20 January 2022. Last changed: Saturday, 17 December 2022 - 10:26 CET.
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