Re: [Elecraft] K3S HI SIGNAL
Radio is back at Elecraft in que for service. Thanks to all and especially to N6KR. You guys rock. 73, David AJ4TF -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
Hi David, My description of our W3AO Field Day antenna configuration was simplified to illustrate the benefits of a North/South straight line of antennas. We actually installed twelve 48 foot masts in two 950 foot North/South straight lines separated by 150 feet. We couldn't fit 22 antennas in a single 950 foot line! Mast and antenna installation and deployment of more than 7000 feet of RG-213 began at 10 a.m. Friday and was completed seven hours later. It took less than four hours to dismantle the entire site. Our site is a school/athletic field complex with more than 25 acres of mowed grass and no trees, its slightly elevated above surrounding terrain. This type of school/athletic field complex is very common in Maryland. Its an ideal Field Day site if you have many portable masts. But our VHF ops would still prefer a mountain top location... We installed twelve 48 foot masts in two 950 foot North/South lines. 950 foot line with seven 48 foot masts and 11 antennas broadside E/W: 0 feet: GOTA Tribander 80 GOTA dipole 150 feet: 15 CW 3 element Yagi 80 RTTY dipole 300 feet: 20 CW 3 element Yagi 500 feet: 15 SSB 3 element Yagi 650 feet: 20 SSB 3 element Yagi 80 CW dipole 800 feet: 15 RTTY 3 element Yagi 80 SSB dipole 950 feet: 20 RTTY 3 element Yagi 950 foot line, 150 feet to the East, with five 48 foot masts and 11 antennas broadside E/W: 0 feet: 40 CW 2 element Yagi 40 CW dipole 250 feet: 10 CW 3 element Yagi 40 GOTA dipole 400 feet: 50/144/432 MHz rotatable Yagis 40 RTTY dipole 800 feet: 10 SSB 3 element Yagi 40 SSB dipole 950 feet: 40 SSB 2 element Yagi 73 Frank W3LPL - Original Message - From: "david" To: donov...@starpower.net Sent: Tuesday, June 26, 2018 2:23:17 AM Subject: Re: [Elecraft] K3S HI SIGNAL At W4UA, we don't have that luxury...the trees are what they are. We have one beam and several dipoles. What I think happened is that the beam operator swung the beam so it was pointing at the broadside of my doublet, while we were both on the same band... poof. But, now I'm curious...I know you were 15A, but 15 dipoles 100 feet apart is more than 1000 feet... On Mon, 2018-06-25 at 12:07 -0400, donov...@starpower.net wrote: We routinely operate three or more K3 transceivers on the same band at W3AO, four on the band our GOTA station is operating. Not only is there no damage to the K3s and no HI SIG warnings, we don't hear any cross-station interference at all! The trick is to use horizontally polarized antennas installed tip-to-tip with at least 100 feet of spacing between each other. 73 Frank W3LPL - Original Message - From: "aj4tf" To: elecraft@mailman.qth.net Sent: Monday, June 25, 2018 10:06:16 AM Subject: Re: [Elecraft] K3S HI SIGNAL Thanks for the inputs on and off list. It appears that during FD we may have had two rigs on the same band inadvertently. I'll be talking with support this week. By the way, I got a personal message from Wayne on this topic. Do you think that would happen with Yacomwood? David AJ4TF Elecraft fan for life -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
Elecraft Service is on the case, the K3S is making the trip back to the mother ship. I forgot to mention, K2 #7006 worked flawlessly as it always does during Field Day. 73, David AJ4TF -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
On 6/25/2018 11:29 AM, donov...@starpower.net wrote: No, they are all pointed in exactly the same direction. Right. The concept is to make them "colinear," so each antenna is in the other's null (off the end). We have done exactly that for our CQP county expeditions, where we run K3/KPA500 stations on the same band. Running 7 dB more power requires at least double the separation. Another important component is an effective ferrite choke at each antenna's feedpoint -- that can improve isolation by preventing feedline radiation/reception from filling in the nulls. Careful planning of antenna setup is key to a successful multi-transmitter setup. Since we're on the left coast, we do the same thing you do - Yagis pointed to W2/W3, dipoles broadside in the same direction. Operating from the middle of the country, dipoles are a better choice than Yagis, especially for CW, again oriented broadside E/W. We do QRP FD, CW only, and it's obvious that some stations have paid a lot more attention to RX noise than others. Our club's call is W6BX, and we worked W3AO on at least three bands. Don't know if we made it on 80 -- haven't looked at the log. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
Hi John, I forgot to answer your question about the receiving antennas at my W3LPL multi-multi contest station. T hey're all verticals. 36 of them located one 1000 feet south east of my transmitting antennas. Three 8-circle vertical arrays for 160, 80 and 40 meters and Three 4-square vertical arrays for 20, 15 and 10 meters. 73 Frank W3LPL - Original Message - From: donov...@starpower.net To: elecraft@mailman.qth.net Cc: j...@kk9a.com Sent: Monday, June 25, 2018 6:29:03 PM Subject: Re: [Elecraft] K3S HI SIGNAL Hi John, No, they are all pointed in exactly the same direction. To eliminate all interference between multiple K3 transceivers operating in the same band, all W3AO HF antennas are deployed in a 1000 foot long straight line running north-south with all of our 3 element HF Yagis and 2 element 40 meter Yagis pointed west. All of our dipoles are broadside east-west. There's no trace of interference among any of the K3 transceivers 73 Frank W3LPL - Original Message - From: j...@kk9a.com To: elecraft@mailman.qth.net Sent: Monday, June 25, 2018 5:34:37 PM Subject: [Elecraft] K3S HI SIGNAL What does tip to tip mean - pointing 90 degrees apart? Don't you use verticals for your mult stations at W3LPL to minimize in band interference? How far are they from the Yagis? John KK9A Frank Donovanf W3LPL wrote: We routinely operate three or more K3 transceivers on the same band at W3AO, four on the band our GOTA station is operating. Not only is there no damage to the K3s and no HI SIG warnings, we don't hear any cross-station interference at all! The trick is to use horizontally polarized antennas installed tip-to-tip with at least 100 feet of spacing between each other. 73 Frank W3LPL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
Note that Frank's reply was to a FD (W3AO) setup question. Frank's W3LPL station has a much different matrix of antennas. 73 jim ab3cv On Mon, Jun 25, 2018 at 2:31 PM wrote: > Hi John, > > > No, they are all pointed in exactly the same direction. > > > > To eliminate all interference between multiple K3 transceivers > operating in the same band, all W3AO HF antennas are deployed in > a 10 00 foot long straight line running north-south with all of our > 3 element HF Yagis and 2 element 40 meter Yagis pointed west. > All of our dipoles are broadside east-west. > > > There's no trace of interference among any of the K3 transceivers > > > 73 > Frank > W3LPL > > - Original Message - > > From: j...@kk9a.com > To: elecraft@mailman.qth.net > Sent: Monday, June 25, 2018 5:34:37 PM > Subject: [Elecraft] K3S HI SIGNAL > > What does tip to tip mean - pointing 90 degrees apart? > > Don't you use verticals for your mult stations at W3LPL to minimize in > band interference? How far are they from the Yagis? > > John KK9A > > > Frank Donovanf W3LPL wrote: > > We routinely operate three or more K3 transceivers on the same band > at W3AO, four on the band our GOTA station is operating. Not only > is there no damage to the K3s and no HI SIG warnings, we don't hear > any cross-station interference at all! > > > The trick is to use horizontally polarized antennas installed tip-to-tip > with at least 100 feet of spacing between each other. > > > 73 > Frank > W3LPL > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donov...@starpower.net > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to j...@jtmiller.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
Hi John, No, they are all pointed in exactly the same direction. To eliminate all interference between multiple K3 transceivers operating in the same band, all W3AO HF antennas are deployed in a 10 00 foot long straight line running north-south with all of our 3 element HF Yagis and 2 element 40 meter Yagis pointed west. All of our dipoles are broadside east-west. There's no trace of interference among any of the K3 transceivers 73 Frank W3LPL - Original Message - From: j...@kk9a.com To: elecraft@mailman.qth.net Sent: Monday, June 25, 2018 5:34:37 PM Subject: [Elecraft] K3S HI SIGNAL What does tip to tip mean - pointing 90 degrees apart? Don't you use verticals for your mult stations at W3LPL to minimize in band interference? How far are they from the Yagis? John KK9A Frank Donovanf W3LPL wrote: We routinely operate three or more K3 transceivers on the same band at W3AO, four on the band our GOTA station is operating. Not only is there no damage to the K3s and no HI SIG warnings, we don't hear any cross-station interference at all! The trick is to use horizontally polarized antennas installed tip-to-tip with at least 100 feet of spacing between each other. 73 Frank W3LPL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3S HI SIGNAL
What does tip to tip mean - pointing 90 degrees apart? Don't you use verticals for your mult stations at W3LPL to minimize in band interference? How far are they from the Yagis? John KK9A Frank Donovanf W3LPL wrote: We routinely operate three or more K3 transceivers on the same band at W3AO, four on the band our GOTA station is operating. Not only is there no damage to the K3s and no HI SIG warnings, we don't hear any cross-station interference at all! The trick is to use horizontally polarized antennas installed tip-to-tip with at least 100 feet of spacing between each other. 73 Frank W3LPL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
We routinely operate three or more K3 transceivers on the same band at W3AO, four on the band our GOTA station is operating. Not only is there no damage to the K3s and no HI SIG warnings, we don't hear any cross-station interference at all! The trick is to use horizontally polarized antennas installed tip-to-tip with at least 100 feet of spacing between each other. 73 Frank W3LPL - Original Message - From: "aj4tf" To: elecraft@mailman.qth.net Sent: Monday, June 25, 2018 10:06:16 AM Subject: Re: [Elecraft] K3S HI SIGNAL Thanks for the inputs on and off list. It appears that during FD we may have had two rigs on the same band inadvertently. I'll be talking with support this week. By the way, I got a personal message from Wayne on this topic. Do you think that would happen with Yacomwood? David AJ4TF Elecraft fan for life -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
Thanks for the inputs on and off list. It appears that during FD we may have had two rigs on the same band inadvertently. I'll be talking with support this week. By the way, I got a personal message from Wayne on this topic. Do you think that would happen with Yacomwood? David AJ4TF Elecraft fan for life -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
The internal band-pass filters are very narrowbanded and very high Q. I believe John was referring to external band-pass filters of the type used in multi-transmitter stations that may be operating at high power into antennas in each other’s near-fields. The K3S and K3 can survive a lot of abuse of this type; it includes built-in signal detection and shut-down of various RX stages. But pumping many watts into the front end (due to tight antenna coupling) is never a good idea. 73, Wayne N6KR > On Jun 24, 2018, at 4:10 PM, donov...@starpower.net wrote: > > The K3 and K3S have built in transmit and receive bandpass filters. > Unfortunately their performance data is unpublished. > > > > http://elecraft.com/manual/K3_Schematics_Jun_2010.pdf > See the third page > > > > David hasn't shared what the specific circumstances may have > caused the HI SIGNAL response. That may give a clue as to > the nature of the fault. > > > 73 > Frank > W3LPL > > > > > - Original Message - > > From: j...@kk9a.com > To: "Elecraft Reflector" > Sent: Sunday, June 24, 2018 3:53:13 PM > Subject: [Elecraft] K3S HI SIGNAL > > Did you use bandpass filters? > > John KK9A > > aj4tf wrote: > > K3S 10669 suddenly stopped receiving during Field day and displayed HI > SIGNAL, even with nothing connected to the antenna. Performed an EE INIT > without any effect. Sluggish response to the front panel controls. Any > advice? > David AJ4TF > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donov...@starpower.net > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S HI SIGNAL
The K3 and K3S have built in transmit and receive bandpass filters. Unfortunately their performance data is unpublished. http://elecraft.com/manual/K3_Schematics_Jun_2010.pdf See the third page David hasn't shared what the specific circumstances may have caused the HI SIGNAL response. That may give a clue as to the nature of the fault. 73 Frank W3LPL - Original Message - From: j...@kk9a.com To: "Elecraft Reflector" Sent: Sunday, June 24, 2018 3:53:13 PM Subject: [Elecraft] K3S HI SIGNAL Did you use bandpass filters? John KK9A aj4tf wrote: K3S 10669 suddenly stopped receiving during Field day and displayed HI SIGNAL, even with nothing connected to the antenna. Performed an EE INIT without any effect. Sluggish response to the front panel controls. Any advice? David AJ4TF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3S HI SIGNAL
Did you use bandpass filters? John KK9A aj4tf wrote: K3S 10669 suddenly stopped receiving during Field day and displayed HI SIGNAL, even with nothing connected to the antenna. Performed an EE INIT without any effect. Sluggish response to the front panel controls. Any advice? David AJ4TF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3S HI SIGNAL
K3S 10669 suddenly stopped receiving during Field day and displayed HI SIGNAL, even with nothing connected to the antenna. Performed an EE INIT without any effect. Sluggish response to the front panel controls. Any advice? David AJ4TF -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
