Actually, I am quite happy with my K1 tuning. It is the one area where I like the K1 better than the K2. I like the smooth, analog tuning of the K1. I replaced the original multiturn pot with the metal shaft one that Don Brown recommended. The tuning is the same, though. It just gives the tuning knob a nicer feel without the wobble. I would like the K2 better if it had a one speed analog VFO, thus my comment about building a VFO to use with the K2. Rick - K7MW ----- Original Message ----- From: "Ron D'Eau Claire" <[EMAIL PROTECTED]> To: "'Rick Dettinger'" <[EMAIL PROTECTED]>; <elecraft@mailman.qth.net> Sent: Thursday, February 23, 2006 1:01 PM Subject: RE: [Elecraft] K2 v. K1
I assume you are saying that you'd like to have a smoother VFO for the local oscillator in your K1! The K2 does NOT use a "multiturn pot" for the VFO. A K1 does. The K1 is a totally different rig. The K2 uses a high-quality optical encoder for the main tuning. Ron AC7AC -----Original Message----- Ron, AC7AC, said: The K2 does this by using a PLL that tunes in about 5 kHz "steps" and then varies the PLL reference oscillator's frequency to tune smoothly in between those steps. So the tuning has the true smooth feel and spectral purity . I say: When I tune my K2 past a signal, I can hear the steps. I also sometimes think I can hear steps when I tune my K1 thru a signal. I assumed that this is due to the nature of the multiturn pot. I think it is wire wound and that the wiper cuts the wire turns suddenly. It could also be due to jerky tuning , in spite of efforts to the contrary. It is very subtle, unlike the K2. Give me a smooth PTO with the K2 signal path. My long term idea is to build a stable analog VFO, using my Sierra band modules for premixing, to drive my K2. Rick - K7MW _______________________________________________ _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
