RF build up
Locked
 
|
Does anyone know of a good way to remove frozen RF from an antenna? It
is now so thick on my wire that the new RF can no longer get through. Typically the antenna stays pretty clear where there is a current max, but I've been changing qrg so much, only the feed point looks okay, even running the K2/100 qro. I envy you chaps down south and on the left coast who don't have to put up with this problem. best wishes, dave belsley, w1euy _______________________________________________ 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 |
|
|
On Tue, 21 Dec 2004, David A. Belsley wrote:
> Does anyone know of a good way to remove frozen RF from an antenna? Considering the season, you might want to find some eggnog and see if it helps the RF escape. Even if it doesn't, if you drink enough, you may no longer be aware of/plagued by the frozen RF. 73,Thom-k3hrn www.zerobeat.net Home of QRP Web Ring, Drakelist home page, Free Classified Ads for amateur radio, QRP IRC channel Elecraft Owners Database www.tlchost.net/ Web Hosting as low as 3.49/month _______________________________________________ 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 |
|
|
In reply to this post by David A. Belsley
now this is why you want an air dielectric on your coax that way you can
hook a heat gun and blow hot air up to the frozen rf and thaw it out. you could also try cognac after a few you won't care about the frozen rf another thing is to get a couple dozen young hams together give them each a mirror 2"X2" than have them reflect the suns light on the antenna with enough mirrors you will be able to warm that frozen rf right out off the antenna and make it as good as new.( of course to much heat will destroy it.) > Does anyone know of a good way to remove frozen RF from an antenna? It > is now so thick on my wire that the new RF can no longer get through. > Typically the antenna stays pretty clear where there is a current max, > but I've been changing qrg so much, only the feed point looks okay, > even running the K2/100 qro. I envy you chaps down south and on the > left coast who don't have to put up with this problem. > > best wishes, > > dave belsley, w1euy > _______________________________________________ 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 |
|
|
In reply to this post by David A. Belsley
I know what you mean Dave. I have wrap my feedline around the pot belly stove to keep it from happening. Bill K3UJ ========================= Does anyone know of a good way to remove frozen RF from an antenna? It is now so thick on my wire that the new RF can no longer get through. Typically the antenna stays pretty clear where there is a current max, but I've been changing qrg so much, only the feed point looks okay, even running the K2/100 qro. I envy you chaps down south and on the left coast who don't have to put up with this problem. best wishes, dave belsley, w1euy _______________________________________________ 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 |
|
|
In reply to this post by David-470
That's what my Acom amp is for. Don't usually need it. The K2/100 by itself
typically keeps the frost RF off the antennas. I relabeled the ON switch to RF Heater on my amp. Had to use it last night. Temp dropped to 4 degrees and had snow. It was sluggish trying to get my CW speed up. After the RF Heater warmed up CW was flowing fine. Happy Holidays. N2TK, Tony -----Original Message----- From: [hidden email] [mailto:[hidden email]]On Behalf Of David Sent: Tuesday, December 21, 2004 10:37 AM To: Elecraft Reflector; David A. Belsley Subject: Re: [Elecraft] RF build up now this is why you want an air dielectric on your coax that way you can hook a heat gun and blow hot air up to the frozen rf and thaw it out. you could also try cognac after a few you won't care about the frozen rf another thing is to get a couple dozen young hams together give them each a mirror 2"X2" than have them reflect the suns light on the antenna with enough mirrors you will be able to warm that frozen rf right out off the antenna and make it as good as new.( of course to much heat will destroy it.) > Does anyone know of a good way to remove frozen RF from an antenna? It > is now so thick on my wire that the new RF can no longer get through. > Typically the antenna stays pretty clear where there is a current max, > but I've been changing qrg so much, only the feed point looks okay, > even running the K2/100 qro. I envy you chaps down south and on the > left coast who don't have to put up with this problem. > > best wishes, > > dave belsley, w1euy > _______________________________________________ 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 |
|
|
In reply to this post by David A. Belsley
It's my understanding (from reading another list which is addressing this
problem) that some of the RF will, in fact radiate, but that it slows down the speed of the signal. For example, one guy reports sending 27 WPM from his K2 but by the time it gets through the frozen RF build-up on his antenna, it was only 18 WPM. With this in mind, it might be a good time for me to go for the ARRL high speed endorsements on my code copying certificate. Just a thought... Happy Holidays Tom, WB2QDG K2 #1103 -----Original Message----- From: Thom R. Lacosta <[hidden email]> To: David A. Belsley <[hidden email]> Cc: Elecraft Reflector <[hidden email]> Date: Tuesday, December 21, 2004 10:28 AM Subject: Re: [Elecraft] RF build up On Tue, 21 Dec 2004, David A. Belsley wrote: > Does anyone know of a good way to remove frozen RF from an antenna? Considering the season, you might want to find some eggnog and see if it helps the RF escape. Even if it doesn't, if you drink enough, you may no longer be aware of/plagued by the frozen RF. 73,Thom-k3hrn www.zerobeat.net Home of QRP Web Ring, Drakelist home page, Free Classified Ads for amateur radio, QRP IRC channel Elecraft Owners Database www.tlchost.net/ Web Hosting as low as 3.49/month _______________________________________________ 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 |
|
|
It's a little known aspect of special relativity which was in fact predicted
by Einstein's equations. That coupled with the Heisenberg Uncertainty Principle implies that as you approach a certin limiting speed in CW, the actual transmission speed will slow down and one will no longer be able to distinguish dots from dashes. ----- Original Message ----- From: "Tom Mc" <[hidden email]> To: "Thom R. Lacosta" <[hidden email]>; "David A. Belsley" <[hidden email]> Cc: "Elecraft Reflector" <[hidden email]> Sent: Tuesday, December 21, 2004 9:47 AM Subject: Re: [Elecraft] RF build up > It's my understanding (from reading another list which is addressing this > problem) that some of the RF will, in fact radiate, but that it slows down > the speed of the signal. For example, one guy reports sending 27 WPM from > his K2 but by the time it gets through the frozen RF build-up on his > antenna, it was only 18 WPM. > > With this in mind, it might be a good time for me to go for the ARRL high > speed endorsements on my code copying certificate. > > Just a thought... > > Happy Holidays > > Tom, WB2QDG > K2 #1103 > -----Original Message----- > From: Thom R. Lacosta <[hidden email]> > To: David A. Belsley <[hidden email]> > Cc: Elecraft Reflector <[hidden email]> > Date: Tuesday, December 21, 2004 10:28 AM > Subject: Re: [Elecraft] RF build up > > > On Tue, 21 Dec 2004, David A. Belsley wrote: > > > Does anyone know of a good way to remove frozen RF from an antenna? > > Considering the season, you might want to find some eggnog and see if it > helps the RF escape. Even if it doesn't, if you drink enough, you may no > longer > be aware of/plagued by the frozen RF. > > 73,Thom-k3hrn > www.zerobeat.net Home of QRP Web Ring, Drakelist home page, > Free Classified Ads for amateur radio, QRP IRC channel > Elecraft Owners Database > www.tlchost.net/ Web Hosting as low as 3.49/month > _______________________________________________ > 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 |
RF Falling from the Aether (was RF build up)
|
|
In reply to this post by Tom Mc
During the 40 meter Elecraft Net last Sunday the RF was falling short of
my antenna. Later that evening I discovered windrows of it scattered East of my antenna. I raked it up and brought it in to sit next to the woodstove over night. I now have a pail full of what appears to be alphabet soup. Trouble is the connections between the letters has been broken so I just have the individual letters and not the words nor sentences. I may just have to paste all of this in my log until Spring when it may make a bit more sense. I do wish the call signs at least would have stuck together and then I could acknowledge their reception albeit in quite a strange manner. Maybe Santa will bring us all RF heaters for our stations. Season's greetings to you all, Kevin. KD5ONS K2 #2511 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.296 / Virus Database: 265.6.2 - Release Date: 12/20/2004 _______________________________________________ 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 |
«
Return to Elecraft
|
1 view|%1 views
| Free forum by Nabble | Edit this page |