[Boatanchors] CAA modulation indicator question...

[Robert Nickels]

On 6/19/2024 2:01 PM, Richard Knoppow wrote:
> Only a guess and a chance to wrench this history out of my memory.

Your recollection is very good, Richard! The Low Frequency Radio Range 
has a special place in both radio and aviation history and as such,  an 
outstanding website has been put together here:

https://flyingthebeams.com/

SInce the A-N signals were amplitude modulated it make sense that this 
would be a piece of special-purpose test equipment used by the 
technicians that maintained those sites.

Enjoy!

73, Bob W9RAN