BABS - Beam Approach Beacon System
An overview of the versions:
1) BABS Mk. 1C
RAF designation: FGRI 5115 or FGRI 5116
2) BABS Mk. 2
3) BABS Mk. 2 FT
RAF designation: FGRI 5798
4) BABS Mk. 2M
RAF designation: FGRI 5725
5) BABS Mk. 2M (Tropical)
RAF designation: MGRI 5797
6) BABS Mk. 3F
RAF designation: FGRI 5755
7) BABS Mk. 3M
RAF designation: MGRI 5756
8) BABS Mk. 4
RAF designation: FGRI 23014
9) BABS Mk. II. (1944)
Frequency range: 214-234 MHz,
10) BABS Tudor Mk. 1
RAF designation: ARI 5385
Source: www.qsl.net.
An overview of the versions:
1) BABS Mk. 1C
RAF designation: FGRI 5115 or FGRI 5116
2) BABS Mk. 2
3) BABS Mk. 2 FT
RAF designation: FGRI 5798
4) BABS Mk. 2M
RAF designation: FGRI 5725
5) BABS Mk. 2M (Tropical)
RAF designation: MGRI 5797
6) BABS Mk. 3F
RAF designation: FGRI 5755
7) BABS Mk. 3M
RAF designation: MGRI 5756
8) BABS Mk. 4
RAF designation: FGRI 23014
9) BABS Mk. II. (1944)
Frequency range: 214-234 MHz,
10) BABS Tudor Mk. 1
RAF designation: ARI 5385
Source: www.qsl.net.