[Boatanchors] How did they "pinpoint" frequencies way back when?

[email protected] [email protected]
Sun, 11 Apr 2004 01:58:10 EDT


Same way I do with my Drake 2-B, I'll bet. Turn on the 100KC crystal 
calibrator and mechanically set the hairline on the dial to match the even 100KC 
point.  The receiver dial would then be accurate within in that +/- 50KC range to 
at least 1 KC.  With the typical 4 to 6 KC wide IF's, they would have no 
trouble hearing ol' Henri LeClerque, (or Fritz Schultz for that matter......).  But 
I'll bet they did a lot of rocking the BFO around to be sure they weren't dead 
zero beat...although there was probably enough key click on Henri's (or 
Fritz's) little transmitter to be heard even at zero beat.

Stu  W7FE


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