K2 Birdies
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I have been tuning my receiver & have determined that I have a few birdies in the 40M band, but there are more in the 20M band that are a S9 level. Frequencies are 14.212.22, 14.217, 14.264.8614.315 that all sound more like buzzing sound. Any ideas?
Bob WB8DDI K2# 4998 _______________________________________________ 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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Bob Wehking wrote:
> I have been tuning my receiver & have determined that I have a few birdies in the 40M band, but there are more in the 20M band that are a S9 level. Frequencies are 14.212.22, 14.217, 14.264.8614.315 that all sound more like buzzing sound. Any ideas? > > Bob > WB8DDI > K2# 4998 Try turning your computer off. -- _ _ _ _ _ / \ / \ / \ / \ / \ John L. Sielke ( W ) ( 2 ) ( A ) ( G ) ( N ) http://w2agn.net \_/ \_/ \_/ \_/ \_/ _______________________________________________ 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 Bob Wehking
Bob,
It's likely that these are coming from elsewhere in the shack, not from the transceiver itself. A working K2 may have a few very weak birdies, in nearly all cases masked entirely by band noise -- certainly nothing like what you're describing. If you can't find external sources, you might try the complete troubleshooting procedure described in Appendix E of the K2 manual. 73, Wayne N6KR On Sep 6, 2005, at 1:51 PM, Bob Wehking wrote: > I have been tuning my receiver & have determined that I have a few > birdies in the 40M band, but there are more in the 20M band that are a > S9 level. Frequencies are 14.212.22, 14.217, 14.264.8614.315 that all > sound more like buzzing sound. Any ideas? --- 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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I checked the birdies on my Icom 756Pro & they are also there so it appears
something in my office is causing them...time to start turning of my hubs, switches etc. ----- Original Message ----- From: "wayne burdick" <[hidden email]> To: "Bob Wehking" <[hidden email]> Cc: <[hidden email]> Sent: Tuesday, September 06, 2005 5:00 PM Subject: Re: K2 Birdies > Bob, > > It's likely that these are coming from elsewhere in the shack, not from > the transceiver itself. A working K2 may have a few very weak birdies, in > nearly all cases masked entirely by band noise -- certainly nothing like > what you're describing. > > If you can't find external sources, you might try the complete > troubleshooting procedure described in Appendix E of the K2 manual. > > 73, > Wayne > N6KR > > > On Sep 6, 2005, at 1:51 PM, Bob Wehking wrote: > >> I have been tuning my receiver & have determined that I have a few >> birdies in the 40M band, but there are more in the 20M band that are a S9 >> level. Frequencies are 14.212.22, 14.217, 14.264.8614.315 that all sound >> more like buzzing sound. Any ideas? > > --- > > http://www.elecraft.com > > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.344 / Virus Database: 267.10.18/89 - Release Date: 9/2/2005 > _______________________________________________ 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 W2AGN
Hi Bob,
There is a real birdie at about 7.000 MHz but it's very sharp and doesn't buzz. The buzzing sounds might be due to a computer or a plasma TV. I've heard that even a neighbor's plasma TV can cause a lot of noise. To check your computer monitor (without turning off the power), tune in the birdie and then change the screen on your computer to something with much different content. If it's the monitor, the sound of the birdie will change. To minimize the computer monitor noise, leave the screen as plain as possible. A uniform background makes much less noise than a "busy" screen that has a lot of signal transitions across the scan lines. If that doesn't show anything, try turning off the computer and then everything else in the house to try to locate the source. Light dimmers and loose wires in wall sockets or switches can be noise generators. For really serious noise reduction, ferrite cores on the cables may be necessary. 73/Bob - W5BIG ==================================================================== ----- Original Message ----- Sent: Tuesday, September 06, 2005 3:56 PM Subject: Re: [Elecraft] K2 Birdies > Bob Wehking wrote: > > I have been tuning my receiver & have determined that I have a few birdies in the 40M band, but there are more in the 20M band that are a S9 level. Frequencies are 14.212.22, 14.217, 14.264.8614.315 that all sound more like buzzing sound. Any ideas? > > > > Bob > > WB8DDI > > K2# 4998 > _______________________________________________ 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 W2AGN
Unpluging my D-Link wireless router stopped the birdies.
Bob WB8DDI K2#4998 ----- Original Message ----- From: "W2AGN" <[hidden email]> To: "Bob Wehking" <[hidden email]> Cc: <[hidden email]> Sent: Tuesday, September 06, 2005 4:56 PM Subject: Re: [Elecraft] K2 Birdies > Bob Wehking wrote: >> I have been tuning my receiver & have determined that I have a few >> birdies in the 40M band, but there are more in the 20M band that are a S9 >> level. Frequencies are 14.212.22, 14.217, 14.264.8614.315 that all sound >> more like buzzing sound. Any ideas? >> >> Bob >> WB8DDI >> K2# 4998 > > > Try turning your computer off. > > -- > _ _ _ _ _ > / \ / \ / \ / \ / \ John L. Sielke > ( W ) ( 2 ) ( A ) ( G ) ( N ) http://w2agn.net > \_/ \_/ \_/ \_/ \_/ > > > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.344 / Virus Database: 267.10.18/89 - Release Date: 9/2/2005 > _______________________________________________ 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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On Tue, 6 Sep 2005 20:03:22 -0400, Bob Wehking wrote:
>Unpluging my D-Link wireless router stopped the birdies. Study these links (from my website). http://audiosystemsgroup.com/SAC0305Ferrites.pdf http://audiosystemsgroup.com/Ferrites-Ham.pdf What you need to do is wind those Ethernet cables and the power cable for the router and computers through the right toroids to form chokes. The links tell you how. Jim _______________________________________________ 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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Jim,
I, too, have a serious bird problem and the source is my D-Link router. However, I cannot open either of the links you provided. I'll try again later. Tom, W3QS -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Jim Brown Sent: Tuesday, September 06, 2005 8:50 PM To: Elecraft List Subject: Re: [Elecraft] K2 Birdies On Tue, 6 Sep 2005 20:03:22 -0400, Bob Wehking wrote: >Unpluging my D-Link wireless router stopped the birdies. Study these links (from my website). http://audiosystemsgroup.com/SAC0305Ferrites.pdf http://audiosystemsgroup.com/Ferrites-Ham.pdf What you need to do is wind those Ethernet cables and the power cable for the router and computers through the right toroids to form chokes. The links tell you how. Jim _______________________________________________ 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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