PLL Clicks
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My K2 has the "PLL Click" problem when I turn the VFO. I've tried running
CAL PLL with the covers on, but no luck. The strange part is that I only hear the clicks when I DECREASE the frequency with the VFO. As I tune up in frequency, I hear absolutely no clicks. When I tune down in frequency I get very loud clicks every 5 KHz or so. I can hear them with no antenna attached. Any idea where I should look first? Thanks, Kevin N8IQ _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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Kevin,
Check RFC15 on the bottom of the RF Board. You must check it with an ohmmeter - even if it is open you will find 5 volts on both sides of it. Should you find it open and do not have an immediate replacement, short across it, replace the bottom cover and re-run CAL PLL - then check again for the clicks. 73, Don W3FPR Kevin Shaw wrote: > My K2 has the "PLL Click" problem when I turn the VFO. I've tried running > CAL PLL with the covers on, but no luck. > > > > _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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Don,
Thanks for the reply. Unfortunately it reads 8.5 ohms. I'll have to look elsewhere. Kevin N8IQ -----Original Message----- From: Don Wilhelm [mailto:[hidden email]] Sent: Thursday, August 16, 2007 4:13 PM To: Kevin Shaw Cc: [hidden email] Subject: Re: [Elecraft] PLL Clicks Kevin, Check RFC15 on the bottom of the RF Board. You must check it with an ohmmeter - even if it is open you will find 5 volts on both sides of it. Should you find it open and do not have an immediate replacement, short across it, replace the bottom cover and re-run CAL PLL - then check again for the clicks. 73, Don W3FPR Kevin Shaw wrote: > My K2 has the "PLL Click" problem when I turn the VFO. I've tried running > CAL PLL with the covers on, but no luck. > > > > _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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I attached an antenna and I do hear clicks when I turn the VFO in both
directions while on 40 meters. Probably due to the strong SW stations. I sold the radio last week and I had to take it back and refund the gentleman's money because of the clicks. Is this something that is inherent in the K2 design and affects all radios to some degree? Thanks, Kevin N8IQ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Kevin Shaw Sent: Thursday, August 16, 2007 10:10 PM To: [hidden email] Cc: [hidden email] Subject: RE: [Elecraft] PLL Clicks Don, Thanks for the reply. Unfortunately it reads 8.5 ohms. I'll have to look elsewhere. Kevin N8IQ -----Original Message----- From: Don Wilhelm [mailto:[hidden email]] Sent: Thursday, August 16, 2007 4:13 PM To: Kevin Shaw Cc: [hidden email] Subject: Re: [Elecraft] PLL Clicks Kevin, Check RFC15 on the bottom of the RF Board. You must check it with an ohmmeter - even if it is open you will find 5 volts on both sides of it. Should you find it open and do not have an immediate replacement, short across it, replace the bottom cover and re-run CAL PLL - then check again for the clicks. 73, Don W3FPR Kevin Shaw wrote: > My K2 has the "PLL Click" problem when I turn the VFO. I've tried running > CAL PLL with the covers on, but no luck. > > > > _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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About a week ago folks warned me about clicks (they said thumps) being a
part of life with the K2 especially during higher periods of band activity. I am glad they told me. I am still going to order a K2 for the many other benefits despite this, apparently, known issue. It sounds like your symptoms are exactly this issue. Kevin Shaw wrote: >I attached an antenna and I do hear clicks when I turn the VFO in both >directions while on 40 meters. Probably due to the strong SW stations. > >I sold the radio last week and I had to take it back and refund the >gentleman's money because of the clicks. Is this something that is inherent >in the K2 design and affects all radios to some degree? > >Thanks, > >Kevin >N8IQ > > >-----Original Message----- >From: [hidden email] >[mailto:[hidden email]] On Behalf Of Kevin Shaw >Sent: Thursday, August 16, 2007 10:10 PM >To: [hidden email] >Cc: [hidden email] >Subject: RE: [Elecraft] PLL Clicks > >Don, > >Thanks for the reply. > >Unfortunately it reads 8.5 ohms. I'll have to look elsewhere. > >Kevin >N8IQ > > >-----Original Message----- >From: Don Wilhelm [mailto:[hidden email]] >Sent: Thursday, August 16, 2007 4:13 PM >To: Kevin Shaw >Cc: [hidden email] >Subject: Re: [Elecraft] PLL Clicks > >Kevin, > >Check RFC15 on the bottom of the RF Board. You must check it with an >ohmmeter - even if it is open you will find 5 volts on both sides of it. > >Should you find it open and do not have an immediate replacement, short >across it, replace the bottom cover and re-run CAL PLL - then check >again for the clicks. > >73, >Don W3FPR > >Kevin Shaw wrote: > > >>My K2 has the "PLL Click" problem when I turn the VFO. I've tried running >>CAL PLL with the covers on, but no luck. >> >> >> >> >> >> > > >_______________________________________________ >Elecraft mailing list >Post to: [hidden email] >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 > > >_______________________________________________ >Elecraft mailing list >Post to: [hidden email] >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 > > > Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Kevin Shaw-2
Kevin,
Are the clicks only on 40 meters, or can they be heard on other bands as well? You might want to pass along the serial number too - there have been a couple upgrades in the PLL area, and if your K2 is below SN 3000, it may be beneficial to simply add the upgrades. 73, Don W3FPR Kevin Shaw wrote: > I attached an antenna and I do hear clicks when I turn the VFO in both > directions while on 40 meters. Probably due to the strong SW stations. > > I sold the radio last week and I had to take it back and refund the > gentleman's money because of the clicks. Is this something that is inherent > in the K2 design and affects all radios to some degree? > > Thanks, > > Elecraft mailing list Post to: [hidden email] 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 |
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