[ARC5] Netting Switch

[Brian Clarke]

Hello Wayne,

Re your second paragraph:
There is no crystal oscillator in the LF, MF and HF Command transmitters. 
The calibration crystal is excited by the VFO, with that excitation being 
displayed on a magic eye tube.

73 de Brian, VK2GCE.

On Monday, May 27, 2013 11:12 PM, you said:


> It sounds like the best thing that could have been done with the WWII 
> Command Sets would have been to have a switching system where receiver B+ 
> was applied to the transmitter oscillators when they were not 
> transmitting, enabling them to run all the time and provide a weak but 
> readable signal so to allow zero beating the receivers with the 
> transmitters.
>
> I suppose it also would have been possible in the same way to use the 
> crystal oscillators in the transmitters to provide a frequency reference 
> for the receivers, but other than making sure that the receivers and 
> transmitters were on the same frequency the actual calibration was not too 
> important when you were up flying.
>
<snip>
>
> Wayne