Don: I used a separate frequency counter but I did struggle with finding a suitable probe. Direct connection seemed to load down the circuit and change the frquency slightly. I ended up using a 10X scope probe. That seemed to work OK. I have read you writeup of the N6KR procedure and I will give bit a try and report back. Just in case a spent some time calibrating a couple of my receivers within a few Hz in case I needed to use that method. It's been a while since my Tek counter has been calibrated. Brian http://home.comcast.net/~b.denley/index.html
----- Original Message ----- From: "Don Wilhelm" <[email protected]> To: "Brian Denley" <[email protected]> Cc: "Elecraft Reflector" <[email protected]> Sent: Sunday, August 01, 2010 9:37 AM Subject: Re: [Elecraft] Alignment and Test Part II > Brian, > > That is entirely normal. Which one of the 3 methods mentioned are you > using to calibrate the 4 MHz reference? > 1) Measure the TP3 frequency with an accurate external counter - adjust > C22 until the K2 display matches the external counter. > 2) Listen to the 4 MHz signal with another receiver - tune C22 until right > on 4 MHz. > 3) Just set the C22 trimmer slot to the midpoint. > > Actually a better method (greater accuracy) exists - wait until you have > completed the K2 and you can receive 10 MHz ((or 15 MHz) WWV, then use the > N6KR method. You can find the "How-To" on my website www.w3fpr.com > article on K2 Dial Calibration. > > 73, > Don W3FPR > > Brian Denley wrote: >> While doing the 4 MHz Oscillator calibration, CAL FCTR shows 12100.10 >> which seem nominal. But adjusting C22 doesn't allow me to change it very >> much at all, maybe a few hundred Hz. It this normal? >> Thanks for any help. >> >> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
