You don't even need an S-meter. The background noise level will vary inversely with the signal level and as you approach zero beat, the noise will flutter slower until it rises and falls very slowly. It is just as accurate as using an S-meter. I have used that technique many times on my freq counter timebase.
Burt VE2BMQ>> "Robert D. Mantell" wrote: > > It never fails - pose a simple question, and you get a series of overly > complicated answers involving > expensive equipment. To calibrate a local frequency standard, one needs > a short wave rx with an > s meter (mechanical type), and a means of balancing the local standard > signal level with that of WWV > at 10 MHz. All you need to do is adjust the local standard while > watching the s meter. As it is > adjusted, you will notice the s meter flutter at a decreasing rate as > you reach 10 Mhz. When you > are dead on, the s meter will drift slower and finally stop. You are > there. And please, do not argue > about doppler, selective fading, etc. Sure you will be able to see > these effects, but they will not affect > the accuracy of this operation. Just watch for the response when the > WWV or whatever signal is steady. > > I hope this helps > > Bob - W3TGG > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
