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.
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.