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| HRO:
One of the old favourites. I first used this in Langeleben
in the old QL 'back to back' Bedford's which was the Setroom.Used
in conjunction with the Frequency Meter (shown below)
both of which formed part of the B111 Spec Op Trade test.
It used Coils to change frequency bands. Frequency range:
50Khz-30Mhzs |
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AR88:
Made by Collins. One of the all time favourites.
Delight to operate having geared tuning.
Probably the most advanced receiver of its type at the
time and was used extensively throughout the Sigint community.Weighed
around 100lbs.
Freq range: 535 Khz - 32 Mhz in 6 bands. |
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R206
MK1 receiver went into production around 1942
with the mark 2 version following in 1945. They were built
to a very high standard specifically for radio interception
and DF stations. A bit of a beast to operate they were
around for a long time. |
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RA
17L: This first triple
superhetrodyne HF receiver placed Racal firmly at the
fore front of receiver design and made them a global
brand. It became one of the best receivers of its type
and was highly regarded by the users.
Frequency Coverage. 1-30 mhz.
Weight 67lbs. |
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HRO
Frequency coils used for the different frequency
bands of the HRO shown top left. |
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BC-221
Frequency meter used mainly with the HRO shown above. |
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| DF
Control key 26. Submitted by John Francis |
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DF
Control key |
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Plessey
PR 1553: Transistorised double superhet receiver.
from the 70's. 15 Khz - 30 Mhz, AM, LSB, USB and CW. |
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RA
1792:Continuously tunable synthesizer in 10 Hz
steps over frequency range. Frequency setting either by
numerical keypad or by single tuning knob with continuously
variable tuning rate from 1 kHz per turn to approximately
20 kHz per turn, depending on the speed of rotation.
Memory unit programmed with up to 100 frequencies and
recalled by keypad or tuning control.
Automatic ChannelScanning of up to ten channels in any
decade of the 100 stored channels. Emergency memory delete
of freqs. using quadrant keys.
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Plessey
PR 2250:Modular double-superhet, covering freq
range 10 Khz- 30 Mhz- AM, CW, SSB, FSK, and Piccolo signals. |
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