[ARC5] BC453 FET BFO Success!!!

Kenneth G. Gordon kgordon2006 at frontier.com
Mon Dec 18 12:25:00 EST 2017


On 18 Dec 2017 at 12:09, MICHAEL ST ANGELO wrote:

> Does anyone have a frequency counter with a decent timebase to measure
> the drift? We've been speculating about the drift for days... 
> 
> Mike N2MS

Exactly. This is my primary concern too. Although I don't own a particularly "excessively 
stabilized" frequency counter, I DO own two which have internal ovens for the time-base, 
and I also own an HP-8640B. The frequency counter I have on my bench exhibits a time 
base which is continually within a Hz or so of WWV at 10 MHz, but that is the best I can do 
at this point.

As soon as I can get to it after all of this season's family matters are taken care of, I intend 
to do some work on this subject and will report my results here.

> > Even at the time that I used Spectran software coupled to the output of my BC-453 all lines 
> > in the waterfall display were straight after the receiver was allowed to stabilize. There were 
> > very slight drifts back and forth, of course, since at the time I was not using stabilized 
> > voltages, but there was most certainly no continual sideways drift of any of the lines in my 
> > waterfall display.

Ken W7EKB

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