K3 noise
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Anybody have more noise on 10 and 12 meters than the other bands? My K3 s/n 1194 with no ant. hooked up and the 200 amp breaker tuned off and running on a gel cell has an S2 to S4 noise on 10 and 12 all of the time. S0 to S1 on the other bands. I also get "static crash" noises intermittently on these bands. I live 1/2 mile from anyone else and have no such noises on my other rigs with or without the ant. hooked to them. I believe I have a problem with the K3. It does it worse when I first turn it on and then quiets down somewhat. Sometimes it works perfectly.
Randy K8RDD _______________________________________________ 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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Hi Randy:
You might want to check your power supply especially if it is a switching type as it could be the source of your noise on those two bands. Cheers from Fern with K3 #412 ----- Original Message ----- From: "Randy Downs" <[hidden email]> To: <[hidden email]> Sent: Sunday, August 10, 2008 4:08 PM Subject: [Elecraft] K3 noise Anybody have more noise on 10 and 12 meters than the other bands? My K3 s/n 1194 with no ant. hooked up and the 200 amp breaker tuned off and running on a gel cell has an S2 to S4 noise on 10 and 12 all of the time. S0 to S1 on the other bands. I also get "static crash" noises intermittently on these bands. I live 1/2 mile from anyone else and have no such noises on my other rigs with or without the ant. hooked to them. I believe I have a problem with the K3. It does it worse when I first turn it on and then quiets down somewhat. Sometimes it works perfectly. Randy K8RDD _______________________________________________ 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 270.6.0/1601 - Release Date: 8/8/2008 9:02 AM _______________________________________________ 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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He said he was on a gel cell... I've not seen too many switching gel
cells... :) On Sun, 2008-08-10 at 21:15 -0600, Fern Rivard wrote: > Hi Randy: > > You might want to check your power supply especially if it is a switching type as it could be the source of your noise on those two bands. > Cheers from Fern with K3 #412 > > > > ----- Original Message ----- > From: "Randy Downs" <[hidden email]> > To: <[hidden email]> > Sent: Sunday, August 10, 2008 4:08 PM > Subject: [Elecraft] K3 noise > > > Anybody have more noise on 10 and 12 meters than the other bands? My K3 s/n 1194 with no ant. hooked up and the 200 amp breaker tuned off and running on a gel cell has an S2 to S4 noise on 10 and 12 all of the time. S0 to S1 on the other bands. I also get "static crash" noises intermittently on these bands. I live 1/2 mile from anyone else and have no such noises on my other rigs with or without the ant. hooked to them. I believe I have a problem with the K3. It does it worse when I first turn it on and then quiets down somewhat. Sometimes it works perfectly. > Randy > K8RDD > _______________________________________________ > 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 K8RDD
Randy,
Do you find this with or without a 50 ohm dummy load connected in place of an antenna? If without a load connected, does the noise level on 10m and 12m drop if you connect a 50 ohm load or 47 ohm resistor in place of the antenna, and can you see / hear any difference in the noise level on any of the other bands? If you had a load connected try disconnecting the load without connecting the antenna's feeder. Does this have any efffect on the noise level on any band? 73, Geoff GM4ESD Randy Downs wrote on Sunday, August 10, 2008 at 11:08 PM Anybody have more noise on 10 and 12 meters than the other bands? My K3 s/n 1194 with no ant. hooked up and the 200 amp breaker tuned off and running on a gel cell has an S2 to S4 noise on 10 and 12 all of the time. S0 to S1 on the other bands. I also get "static crash" noises intermittently on these bands. I live 1/2 mile from anyone else and have no such noises on my other rigs with or without the ant. hooked to them. I believe I have a problem with the K3. It does it worse when I first turn it on and then quiets down somewhat. Sometimes it works perfectly. Randy K8RDD _______________________________________________ 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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