Re: Re: KX1 Zero Beat
Posted by
David Pratt-3 on
Jul 09, 2004; 7:35am
URL: http://elecraft.85.s1.nabble.com/Scanning-tp367698p367703.html
In a recent message, Leigh L. Klotz Jr <
[hidden email]> said....
>Over the 4th of July vacation, I built a zero-beat detector for my KX1.
>At first I was using a data book design, but I found this one by KR5L on
>N0SS's site and just built his on perfboard.
That device is excellent, Leigh. I have one built into my K2 and would
not do without it. Likewise, it is sensitive to +/- 10Hz.
There is a CMOS version of the zero-beat indicator around by LA3ZA using
the LMC567 although I have not tried it. It is said to draw 0.9mA at 5V
compared with 20mA at 8V for the LM567 version.
Have a look at
http://www.qsl.net/la3za/QRP_Zero.html73 de David G4DMP