K3 in diversity mode
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I received my new K3 a few days before the ARRL 160 Meter Contest. (Thanks
to wife Phyllis, K1WSN for early Christmas/Birthday presents for the next 5+ years). I used it a few days earlier in the ARCI 160M QRP Sprint and in the ARRL 160M test, both in the diversity mode with a NE/SW Beverage on the sub receiver. It worked great. In the ARRL 160M contest, running low power I managed to make 1047 QSOs in 74 sections and 21 countries. It was great being able to copy weak signals as the faded up and down in level from one ear to the other. However, I kept having one minor annoyance. With the K3 in the diversity mode the VFO's are locked so they track the exact same frequency. More than a few times during the contest, when I used the RIT, I would accidentily bump the VFO-B knob. To get VFO-B back to the same frequency required tapping the A>B button. Is there any reason why the VFO-B knob could be not be deactivated when the K3 is in the diversity mode? I can think of no reason why I'd want to tune VFO-B while in this mode. Deactivating VFO-B would prevent it accidentily unlocking the two VFOs. 73 de Rich - K1HTV ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Richard Zwirko wrote:
> However, I kept having one minor annoyance. With the K3 in the diversity > mode the VFO's are locked so they track the exact same frequency. More than > a few times during the contest, when I used the RIT, I would accidentily > bump the VFO-B knob. To get VFO-B back to the same frequency required > tapping the A>B button. Is there any reason why the VFO-B knob could be not > be deactivated when the K3 is in the diversity mode? I can think of no > reason why I'd want to tune VFO-B while in this mode. Deactivating VFO-B > would prevent it accidentily unlocking the two VFOs. It sounds to me as if you were not in diversity mode, but rather LINK mode. If you hold the SUB button for about a second, it links the vfos so that they will tune together. But the frequencies need not be the same. To get diversity mode, hold the SUB button for a longer time until you see DVRSTY on the screen. Then you can use VFO B for a transmit VFO for split operation. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Richard Zwirko
K2VCO
Vic, Thanks for the info on how to correctly get into the DIVERSITY mode on the K3. After holding the SUB button down for two seconds I thought that I was in the diversity mode, and actually had diversity reception. But if I had continued to hold the button, as you indicated, I would have see DVRSTY on the display and would have found that the VFO B dial was indeed deactivated. I still have more to learn about this great K3 communications tool. We all should be thankful to have such a large core of K3 users and the Elecraft support team to help us when the inevitable questions and problems arise. 73 de Rich - K1HTV = = = -----Original Message----- From: Vic Rosenthal [mailto:[hidden email]] On Behalf Of Vic K2VCO Sent: Monday, December 07, 2009 22:30 PM To: Richard Zwirko Cc: [hidden email] Subject: Re: [Elecraft] K3 in diversity mode Richard Zwirko wrote: > However, I kept having one minor annoyance. With the K3 in the > diversity mode the VFO's are locked so they track the exact same > frequency. More than a few times during the contest, when I used the > RIT, I would accidentily bump the VFO-B knob. To get VFO-B back to the > same frequency required tapping the A>B button. Is there any reason > why the VFO-B knob could be not be deactivated when the K3 is in the > diversity mode? I can think of no reason why I'd want to tune VFO-B > while in this mode. Deactivating VFO-B would prevent it accidentily unlocking the two VFOs. It sounds to me as if you were not in diversity mode, but rather LINK mode. If you hold the SUB button for about a second, it links the vfos so that they will tune together. But the frequencies need not be the same. To get diversity mode, hold the SUB button for a longer time until you see DVRSTY on the screen. Then you can use VFO B for a transmit VFO for split operation. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Hello,
I read very positive information about diversity mode, that you can use two different polarization antennas to better performance, or just the TX antenna and a beverage, right? But I have a doubt. What is the field experience when using the main TX antenna and a beverage and you have a high QRN? Still useful the diversity mode or just is better to RX ONLY in the beverage? Thanks! 73, Jorge -----Mensaje original----- De: [hidden email] [mailto:[hidden email]] En nombre de Richard Zwirko Enviado el: Martes, 08 de Diciembre de 2009 08:14 p.m. Para: [hidden email] CC: [hidden email] Asunto: Re: [Elecraft] K3 in diversity mode K2VCO Vic, Thanks for the info on how to correctly get into the DIVERSITY mode on the K3. After holding the SUB button down for two seconds I thought that I was in the diversity mode, and actually had diversity reception. But if I had continued to hold the button, as you indicated, I would have see DVRSTY on the display and would have found that the VFO B dial was indeed deactivated. I still have more to learn about this great K3 communications tool. We all should be thankful to have such a large core of K3 users and the Elecraft support team to help us when the inevitable questions and problems arise. 73 de Rich - K1HTV = = = -----Original Message----- From: Vic Rosenthal [mailto:[hidden email]] On Behalf Of Vic K2VCO Sent: Monday, December 07, 2009 22:30 PM To: Richard Zwirko Cc: [hidden email] Subject: Re: [Elecraft] K3 in diversity mode Richard Zwirko wrote: > However, I kept having one minor annoyance. With the K3 in the > diversity mode the VFO's are locked so they track the exact same > frequency. More than a few times during the contest, when I used the > RIT, I would accidentily bump the VFO-B knob. To get VFO-B back to the > same frequency required tapping the A>B button. Is there any reason > why the VFO-B knob could be not be deactivated when the K3 is in the > diversity mode? I can think of no reason why I'd want to tune VFO-B > while in this mode. Deactivating VFO-B would prevent it accidentily unlocking the two VFOs. It sounds to me as if you were not in diversity mode, but rather LINK mode. If you hold the SUB button for about a second, it links the vfos so that they will tune together. But the frequencies need not be the same. To get diversity mode, hold the SUB button for a longer time until you see DVRSTY on the screen. Then you can use VFO B for a transmit VFO for split operation. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.426 / Virus Database: 270.14.98/2552 - Release Date: 12/08/09 07:34:00 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Hola Jorge! You should at least be able to hear something of the desired signal on both antennas for diversity. Then you may hear the signal changing between antennas to help reduce the effects of QSB. However if you cannot hear anything of the signal on one antenna, then there is no advantage to diversity. I have two TX antennas for Topband...a directional vertical array (similar pattern to a 4 SQ) and an inv-V up 30m. I also have many Beverages and a RX 4SQ array. I try to pick my best 2 antennas and use those for my diversity inputs. Sometimes Topband signals are switching between high and low angles and sometimes azimuth directions, so it depends on the specific situation what combination is best. 73, Bill |
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Hola Bill!
Thanks ! And can you setup to have two RX antennas for listening on diversity mode or always one of the antennas must be the TX antenna? So, you TX in the inv-V and listen in one beverage and in the RX 4SQ array in diversity mode. 73, Jorge CX6VM/CW5W -----Mensaje original----- De: [hidden email] [mailto:[hidden email]] En nombre de Bill W4ZV Enviado el: Viernes, 11 de Diciembre de 2009 12:04 p.m. Para: [hidden email] Asunto: Re: [Elecraft] [K3] K3 in diversity mode Jorge Diez - CX6VM wrote: > > > I read very positive information about diversity mode, that you can use > two > different polarization antennas to better performance, or just the TX > antenna and a beverage, right? > > But I have a doubt. > > What is the field experience when using the main TX antenna and a beverage > and you have a high QRN? > > Still useful the diversity mode or just is better to RX ONLY in the > beverage? > Hola Jorge! You should at least be able to hear something of the desired signal on both antennas for diversity. Then you may hear the signal changing between antennas to help reduce the effects of QSB. However if you cannot hear anything of the signal on one antenna, then there is no advantage to diversity. I have two TX antennas for Topband...a directional vertical array (similar pattern to a 4 SQ) and an inv-V up 30m. I also have many Beverages and a RX 4SQ array. I try to pick my best 2 antennas and use those for my diversity inputs. Sometimes Topband signals are switching between high and low angles and sometimes azimuth directions, so it depends on the specific situation what combination is best. 73, Bill -- View this message in context: http://n2.nabble.com/K3-in-diversity-mode-tp4130190p4151465.html Sent from the [K3] mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.426 / Virus Database: 270.14.98/2552 - Release Date: 12/08/09 07:34:00 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Yes, I normally use two RX antennas in diversity. The RX 4SQ has better F/R than my TX array so I use a Beverage and RX 4SQ in diversity RX. You must have the KXV3 for RX ANT in as well as the AUX RF for the KRX3 to be able to use two RX antennas. 73, Bill |
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In reply to this post by Jorge Diez - CX6VM
Hi Jorge,
I was using five different antennas during ARRL 160 for receive. The main Tx antenna (72' Marconi), a 40m vertical, 40m delta loop, 80m Marconi (45') and a 330' beverage. QRN was not horrible during the contest but we did have a storm front rolling through the area and regardless which combo of antennas I used in diversity there was an improvement copying signals. I'm not sure how this will work in very heavy QRN, but suspect it will still provide an improvement over listening on just one antenna alone. It is a fun feature to use. 73, Julius n2wn
Julius Fazekas
N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2 #4455 Elecraft K3/100 #366 Elecraft K3/100 |
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In reply to this post by Vic K2VCO
Also a way to tell which is to see which decimal is pulsing. If the decimal
in the VFO B display is pulsing it means they are linked. If the decimal in the VFO A display is pulsing it means diversity is ON. 73 Greg AB7R -----Original Message----- From: [hidden email] [mailto:[hidden email]]On Behalf Of Vic K2VCO Sent: Monday, December 07, 2009 7:30 PM To: Richard Zwirko Cc: [hidden email] Subject: Re: [Elecraft] K3 in diversity mode Richard Zwirko wrote: > However, I kept having one minor annoyance. With the K3 in the diversity > mode the VFO's are locked so they track the exact same frequency. More than > a few times during the contest, when I used the RIT, I would accidentily > bump the VFO-B knob. To get VFO-B back to the same frequency required > tapping the A>B button. Is there any reason why the VFO-B knob could be not > be deactivated when the K3 is in the diversity mode? I can think of no > reason why I'd want to tune VFO-B while in this mode. Deactivating VFO-B > would prevent it accidentily unlocking the two VFOs. It sounds to me as if you were not in diversity mode, but rather LINK mode. If you hold the SUB button for about a second, it links the vfos so that they will tune together. But the frequencies need not be the same. To get diversity mode, hold the SUB button for a longer time until you see DVRSTY on the screen. Then you can use VFO B for a transmit VFO for split operation. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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