20M KX-1 T/R Problem
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Other then a relay, wonder what could be causing this problem:
I am having trouble with the T/R relay circuit hanging up on 20m only - 40 works fine. The RX works on 20, then when I key to transmit it works but then wont go back to receive properly. The signals are very weak and I have to turn the KX-1 off and on to reset. It sounds like one of the relays is hanging up - I think perhaps relay K1. Am I correct? But why only on 20m and not 40m? Thanks Ken K1UM _______________________________________________ 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 |
Moving the bands on k1 modules
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Hi,
I have ordered one K1-4 plus KFL1-2, should soon arrive here in SM. I have choosen 40/30/20/17 mtrs in k1-4 and 80/15 on KFL1-2 board and will probably build this way, but i just wondering about doing this way: 80/40/30/20 K1-4 and 17/15 on KFL1-2, is that possible with the existing parts included in kit? By this way i will not need to swap boards when changing between 40 and 80 mtrs.. 73 / SM5KRI Chris -- Krister Eriksson Ringduvegatan 23 724 70 Västerås [Hamradio: SM5KRI] [ [hidden email] ] -- SM5KRI Krister Eriksson [hidden email] _______________________________________________ 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 |
RE: Moving the bands on k1 modules
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Chris,
The K1 4 band board shares the low pass filter with 2 bands, so 80 and 40 meters as the lower band pair will not work because the 2nd harmonic energy from 80 would not be attenuated by a LPF that will also pass 40 meter signals. 40 and 30 meters work with the same LPF and 20 and 17 (or 15) meters will work with the same LPF, and that is what is done on the 4 band board. 73, Don W3FPR > -----Original Message----- > > Hi, > I have ordered one K1-4 plus KFL1-2, should soon arrive here in SM. > > I have choosen 40/30/20/17 mtrs in k1-4 and 80/15 on KFL1-2 board and > will probably build this way, but i just wondering about doing this way: > 80/40/30/20 K1-4 and 17/15 on KFL1-2, is that possible with the existing > parts included in kit? > > By this way i will not need to swap boards when changing between 40 and > 80 mtrs.. > > 73 / SM5KRI Chris > _______________________________________________ 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 |
Re: Moving the bands on k1 modules
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In reply to this post by Krister Eriksson
The way the K1 RF boards are designed, the 4 band one won't work on 80/40/30/20!
I have my 4 band board on 40/30/20/15 and an additional 2 band board for 160/80. 73, Sandy W5TVW ----- Original Message ----- From: "Krister Eriksson" <[hidden email]> To: <[hidden email]> Sent: Wednesday, June 14, 2006 10:57 PM Subject: [Elecraft] Moving the bands on k1 modules | Hi, | I have ordered one K1-4 plus KFL1-2, should soon arrive here in SM. | | I have choosen 40/30/20/17 mtrs in k1-4 and 80/15 on KFL1-2 board and | will probably build this way, but i just wondering about doing this way: | 80/40/30/20 K1-4 and 17/15 on KFL1-2, is that possible with the existing | parts included in kit? | | By this way i will not need to swap boards when changing between 40 and | 80 mtrs.. | | 73 / SM5KRI Chris | -- | Krister Eriksson | Ringduvegatan 23 | 724 70 Västerås | | [Hamradio: SM5KRI] | [ [hidden email] ] | | | -- | SM5KRI | Krister Eriksson | [hidden email] | | _______________________________________________ | 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: 7.1.394 / Virus Database: 268.8.4/364 - Release Date: 6/14/2006 | | _______________________________________________ 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 |
Re: Moving the bands on k1 modules
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In reply to this post by Krister Eriksson
Because of the way the K1 4-band board is designed (2 bands share a set of
bandpass and lowpass filters (40/30 and 20/17) as opposed to the 2-band board which can accept any two bands, since each has it's own set of filters) you can not do as you describe. You can't get much more out of it than what is described on the elecraft site. If you want 80/40/30/20 in one case you could get a KX1 + KXB3080, but those are the only bands you can get in it. dt . --- Krister Eriksson <[hidden email]> wrote: > Hi, > I have ordered one K1-4 plus KFL1-2, should soon arrive here in SM. > > I have choosen 40/30/20/17 mtrs in k1-4 and 80/15 on KFL1-2 board and > will probably build this way, but i just wondering about doing this way: > 80/40/30/20 K1-4 and 17/15 on KFL1-2, is that possible with the existing > parts included in kit? > > By this way i will not need to swap boards when changing between 40 and > 80 mtrs.. > > 73 / SM5KRI Chris > -- > Krister Eriksson > Ringduvegatan 23 > 724 70 V�ster�s > > [Hamradio: SM5KRI] > [ [hidden email] ] > > > -- > SM5KRI > Krister Eriksson > [hidden email] > > _______________________________________________ > 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 |
Re: Moving the bands on k1 modules
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In reply to this post by Krister Eriksson
> You can't get much more out of it than what is
>described on the elecraft site. Except that, rather than supporting 40/30/20m plus either 17 OR 15 meters, the KFL1-4 filter board is actually a little more versatile. As supplied, it supports 40/30m, plus ANY TWO of 20m, 17m, or 15m. I don't know why Elecraft doesn't take credit for this. Every once in a while a person comes around who doesn't care about 20m coverage. Mike / KK5F _______________________________________________ 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 |
Re: Moving the bands on k1 modules
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Thank You all OM for answering my Question..
-- Krister Eriksson Ringduvegatan 23 724 70 Västerås [Hamradio: SM5KRI] [ [hidden email] ] _______________________________________________ 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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