GBR - OBOE (radionavigační systém)

OBOE (radio navigation system)
an Overview of the versions:

1) OBOE Mk. Even
The designation RAF: ARI 5513, ARI 5148
Receiver: R 3564 or R 3189
Frequency: 200 Mc/s (MHz)- 1.5 m

2) OBOE Mk. II
The designation RAF: ARI 5514, ARI 5582
Receiver: R 3540 (RT-4/APS-4)

Air Ministry Experimental Station used for the identification of radar the RAF markings:
AMES Type 9000

Source: http://home.btconnect.com/gmb/ari.htm.
URL : https://www.valka.cz/GBR-OBOE-radionavigacni-system-t125975#427518 Version : 0
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