Originally Posted by
22/04
RAD 127.3 123.55 (latter rarely used).
TWR 120.2.
Around 1970 we lost 123.55 and gained 128.75 which IIRC was the initial GND frequency. Or was 123.55 used briefly before that for GND.
Then we settled to GND 121.75 TWR 120.2, RAD 127.3, APP/DIR 128.75 APP 129.55 I think- 127.3 was used for SRAs until quite late on.
The TWR became 119.925 (not sure about that)
I think we still have or did have a delivery frequency - but has this ever been used.
Pretty sure 123.55 was the original ground frequency. Not sure about the timing of the switch to 121.75.
Think the TWR was 119.975 for a while after 120.2 and before 132.55.
Yes we have delivery on 121.885, been in use this summer during the morning rush.