[ARC5] Items of Interest

[neilb at ihug.co.nz]

> The 3-6 MHZ and 6-9.1 MHZ receivers he had no reason to touch and it is a 
> bit astonishing that they even
> gave him the capability to do so.

I have suggested before on this group (and been ridiculed) that the 
provision of receiver tuning for the pilots
makes sense if the command frequency was changed during the flight to 
confound the enemy. By this I mean
the pilots may have been given a frequency schedule before take-off, such as 
frequency A at 0930, B at 0945,
C at 1000, and so on. That way, commands such as headings were received on a 
different frequency each 15
minutes, but were acknowledged on the original (lock tuned) transmitter 
frequency.
As time went by, perhaps the tactic became less effective because it was 
discovered that the enemy was using
banks of receivers to monitor all the usual frequencies. Furthermore it may 
have led to confusion if pilots
missed the scheduled re-tune time, making it more trouble than it was worth.
These factors may have led to the abandonment of the tactic and the adoption 
of receivers with locked tuning
late in the war. Just a suggestion and I have no documentation to confirm 
the tactic was ever used.

73 de Neil ZL1ANM