Re: [Elecraft] KPA500+KAT500 interfacing
Google is your friend!!! ……….. There are several showing in a search… Sent from Mail for Windows 10 __ 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] KPA500+KAT500 interfacing
In the plans for Win4IcomSuite. Tom -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of kd...@frawg.org Sent: Thursday, November 19, 2020 1:55 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA500+KAT500 interfacing Andy and Ken, Wonder if this could be adapted? https://www.youtube.com/watch?v=9_xMEbW8z28 KD4IZ Jack Spitznagel FM19oo -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Andy Durbin Sent: Thursday, November 19, 2020 13:49 To: Ken Winterling ; elecraft@mailman.qth.net Subject: [Elecraft] KPA500+KAT500 interfacing "I would like to see an IcomCI-V interface for the KPA500/KAT500 combination. " It probably wouldn't be too difficult to implement. I have seen code for a CI-V decoder and, once the required TX or RX frequency has been extracted, it would be easy to compute and send band to KPA500 and frequency to KAT500. No motivation here though and I don't know if anyone has published a suitable interface. 73, Andy, k3wyc __ 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 kd...@frawg.org __ 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 elecraft.l...@videotron.ca -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ 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] KPA500+KAT500 interfacing
On 11/19/2020 10:48 AM, Andy Durbin wrote: It probably wouldn't be too difficult to implement. I have seen code for a CI-V decoder and, once the required TX or RX frequency has been extracted, it would be easy to compute and send band to KPA500 and frequency to KAT500. Many years ago, a homebrew CI-V to RS232 interface was published in QST, and about 15 years ago, I bought two at a Chicago area hamfest that a ham had made a small business of building and selling. It worked fine with the IC746 that I owned at the time. 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] KPA500+KAT500 interfacing
Andy and Ken, Wonder if this could be adapted? https://www.youtube.com/watch?v=9_xMEbW8z28 KD4IZ Jack Spitznagel FM19oo -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Andy Durbin Sent: Thursday, November 19, 2020 13:49 To: Ken Winterling ; elecraft@mailman.qth.net Subject: [Elecraft] KPA500+KAT500 interfacing "I would like to see an IcomCI-V interface for the KPA500/KAT500 combination. " It probably wouldn't be too difficult to implement. I have seen code for a CI-V decoder and, once the required TX or RX frequency has been extracted, it would be easy to compute and send band to KPA500 and frequency to KAT500. No motivation here though and I don't know if anyone has published a suitable interface. 73, Andy, k3wyc __ 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 kd...@frawg.org __ 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] KPA500+KAT500 interfacing
"I would like to see an IcomCI-V interface for the KPA500/KAT500 combination. " It probably wouldn't be too difficult to implement. I have seen code for a CI-V decoder and, once the required TX or RX frequency has been extracted, it would be easy to compute and send band to KPA500 and frequency to KAT500. No motivation here though and I don't know if anyone has published a suitable interface. 73, Andy, k3wyc __ 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] KPA500+KAT500 interfacing
I would like to see an Icom CI-V interface for the KPA500/KAT500 combination. This is built into the KPA1500 which is a combination amp/tuner/antenna selector switch. The KPA1500 "speaks" Elecraft, Kenwood, Yaesu, and Icom. The KPA500 can use Icom "band data" voltages but that doesn't support the WARC bands. There is also no communication with the KAT500 to tell it what band/antenna to use. Yes, the KPA500/KAT500 combination switches perfectly to the proper band, frequency, and antenna on *transmit *but does nothing on receive. When just listening it is necessary to manually press the ANT(tenna) button on the KAT500 to select the proper antenna for the selected frequency (band) on the Icom radio. If you are trying to scan memories that doesn't work at all. Having the ability for the KAT500 to follow the receiver so it could select the proper band/antenna would be very helpful. Has anybody built such an interface or know of an existing commercial device that will perform the above function? 73, Ken WA2LBI On Wed, Nov 18, 2020 at 4:01 PM Andy Durbin wrote: > Some people seem to get quite hostile when I carefully distinguish between > "band data" and "frequency data". For that reason I didn't emphasize that > KAT500 needs FREQUENCY not BAND. > > The cable for "KPA500 polls Kenwood and KPA500 and KAT500 listen to > Kenwood" can be cobbled together for probably under $10 assuming you don't > have the connectors and cable in the junk bin. You can also buy the cable > from Elecraft. It works fine as long as you accept that KAT500 can only > follow VFO A (limitation of current firmware). I was not satisfied with > this (and other limitations) so I launched on a long, educational, > rewarding, and sometimes frustrating, project to build a controller that > made the Kenwood/KPA500/KAT500 interface work the way I though it should (I > don't claim it works correctly , only that it works the way I want it to). > > I've provided the link before but links a cheap so here it is again - > https://tinyurl.com/ycrszzbe > > 73, > Andy, k3wyc > > __ > 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 wa2...@gmail.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] KPA500+KAT500 interfacing
Some people seem to get quite hostile when I carefully distinguish between "band data" and "frequency data". For that reason I didn't emphasize that KAT500 needs FREQUENCY not BAND. The cable for "KPA500 polls Kenwood and KPA500 and KAT500 listen to Kenwood" can be cobbled together for probably under $10 assuming you don't have the connectors and cable in the junk bin. You can also buy the cable from Elecraft. It works fine as long as you accept that KAT500 can only follow VFO A (limitation of current firmware). I was not satisfied with this (and other limitations) so I launched on a long, educational, rewarding, and sometimes frustrating, project to build a controller that made the Kenwood/KPA500/KAT500 interface work the way I though it should (I don't claim it works correctly , only that it works the way I want it to). I've provided the link before but links a cheap so here it is again - https://tinyurl.com/ycrszzbe 73, Andy, k3wyc __ 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] KPA500+KAT500 interfacing.
From the KAT500 manual: When the KAT500 is used with an Elecraft K3 transceiver, the K3 can be configured to cause the KAT500 to follow changes in the K3’s VFO frequency during receive. This requires frequency, not band data. Tuning the K3 big knob results in a change of tuning solutions for antennas that require those solutions. After stopping tuning for a brief moment, one can hear the relays change. 73, Bill, K8TE -- 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] KPA500+KAT500 interfacing
Two things. First, you are right, it passes the signals through from the radio. The second is that it can break the PTT line (in that pass-through) when the KAT needs to tune or otherwise change the relays while the system is transmitting (PTT being active). Note that both the KAT and the KPA use many of the signals on the AuxIO. These include the BAND lines, PTT, and importantly, the AuxBus line. The KPA500 talks on the Auxbus (but does not listen), while the KAT listens on the Auxbus. Because of the way the KPA encodes its data, the KAT cannot receive any data from the KPA, but only that coming from the transceiver. That is kind of an important point - there is no communications between the KPA500 and the KAT500, which eliminates the ability to do really close control between the two. 73! Jack, W6FB > On Nov 18, 2020, at 10:15 AM, j...@kk9a.com wrote: > > So what does the HD15 cable do from the KAT500 to the KPA500? I thought that > the KAT controlled the amp but perhaps it is just passing the K3 data through. > > John KK9A > > > > Jack Brindle W6FB wrote: > > I received a bit of further information this morning. The KAT500 only uses > the band data to validate that the received frequency (from the K3) is on the > indicated band. It does not use it for anything else. > > Further, the KPA500 only uses band data to select the band. In general, the > KPA doesn’t care about the frequency - it really has no frequency-sensitive > elements. The KPA does not receive frequency from the K3, and only uses the > Kenwood data (or Icom band voltage) to select a band. Thus there is no data > to be sent. > > I believe you are searching for a solution that gathers transceiver frequency > and sends it to the KAT500. Or, allow the KAT500 to use its built-in > frequency measurement system to select the bin. > > Jack, W6FB > > >> On Nov 18, 2020, at 8:00 AM, Wes wrote: >> >> Thanks Andy. >> >> I'm starting to get my head around this. "Tis a pity that Elecraft didn't >> allow for the KPA500 to control the KAT500 via the band data bus and have an >> integrated Amp/Tuner combo that didn't require a proprietary interface. >> >> The tuning solutions are in the tuner memory so telling it, or letting it >> measure, the frequency recalls them. >> >> Wes > > __ > 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 jackbrin...@me.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] KPA500+KAT500 interfacing
Mostly the cable is a pass through. The KAT500 has a relay to interrupt the amp key line during ATU tuning, and the KAT500 can observe (but not change) the exciter-controlled band lines. The ATU needs the frequency. The amp needs the band. Both amp and ATU have TX freq counters. Both amp and ATU have publicly documented mechanisms to be controlled by external automation to return to freq-appropriate settings before transmission. We provide automation from K3, K3S, and K4 when you use the optional 15-pin ACC cables and select the appropriate settings in exciter, amp, and ATU. These are convenient, but not the only way the amp and ATU can be used. If the amp were able to set band lines for the ATU, it would be of marginal utility. The ATU could return to the last used setting on that band. As soon as you QSY, the ATU would probably need to move, based on the tx freq count. 73 de Dick, K6KR > On Nov 18, 2020, at 10:18, j...@kk9a.com wrote: > > So what does the HD15 cable do from the KAT500 to the KPA500? I thought > that the KAT controlled the amp but perhaps it is just passing the K3 data > through. > > John KK9A > > > > Jack Brindle W6FB wrote: > > I received a bit of further information this morning. The KAT500 only uses > the band data to validate that the received frequency (from the K3) is on the > indicated band. It does not use it for anything else. > > Further, the KPA500 only uses band data to select the band. In general, the > KPA doesn’t care about the frequency - it really has no frequency-sensitive > elements. The KPA does not receive frequency from the K3, and only uses the > Kenwood data (or Icom band voltage) to select a band. Thus there is no data > to be sent. > > I believe you are searching for a solution that gathers transceiver frequency > and sends it to the KAT500. Or, allow the KAT500 to use its built-in > frequency measurement system to select the bin. > > Jack, W6FB > > >> On Nov 18, 2020, at 8:00 AM, Wes wrote: >> >> Thanks Andy. >> >> I'm starting to get my head around this. "Tis a pity that Elecraft didn't >> allow for the KPA500 to control the KAT500 via the band data bus and have an >> integrated Amp/Tuner combo that didn't require a proprietary interface. >> >> The tuning solutions are in the tuner memory so telling it, or letting it >> measure, the frequency recalls them. >> >> Wes > > __ > 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 d...@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] KPA500+KAT500 interfacing
So what does the HD15 cable do from the KAT500 to the KPA500? I thought that the KAT controlled the amp but perhaps it is just passing the K3 data through. John KK9A Jack Brindle W6FB wrote: I received a bit of further information this morning. The KAT500 only uses the band data to validate that the received frequency (from the K3) is on the indicated band. It does not use it for anything else. Further, the KPA500 only uses band data to select the band. In general, the KPA doesn’t care about the frequency - it really has no frequency-sensitive elements. The KPA does not receive frequency from the K3, and only uses the Kenwood data (or Icom band voltage) to select a band. Thus there is no data to be sent. I believe you are searching for a solution that gathers transceiver frequency and sends it to the KAT500. Or, allow the KAT500 to use its built-in frequency measurement system to select the bin. Jack, W6FB On Nov 18, 2020, at 8:00 AM, Wes wrote: Thanks Andy. I'm starting to get my head around this. "Tis a pity that Elecraft didn't allow for the KPA500 to control the KAT500 via the band data bus and have an integrated Amp/Tuner combo that didn't require a proprietary interface. The tuning solutions are in the tuner memory so telling it, or letting it measure, the frequency recalls them. Wes __ 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] KPA500+KAT500 interfacing
I received a bit of further information this morning. The KAT500 only uses the band data to validate that the received frequency (from the K3) is on the indicated band. It does not use it for anything else. Further, the KPA500 only uses band data to select the band. In general, the KPA doesn’t care about the frequency - it really has no frequency-sensitive elements. The KPA does not receive frequency from the K3, and only uses the Kenwood data (or Icom band voltage) to select a band. Thus there is no data to be sent. I believe you are searching for a solution that gathers transceiver frequency and sends it to the KAT500. Or, allow the KAT500 to use its built-in frequency measurement system to select the bin. Jack, W6FB > On Nov 18, 2020, at 8:00 AM, Wes wrote: > > Thanks Andy. > > I'm starting to get my head around this. "Tis a pity that Elecraft didn't > allow for the KPA500 to control the KAT500 via the band data bus and have an > integrated Amp/Tuner combo that didn't require a proprietary interface. > > The tuning solutions are in the tuner memory so telling it, or letting it > measure, the frequency recalls them. > > Wes > > > On 11/18/2020 3:02 AM, Andy Durbin wrote: >> "I simply want to know: >> 1) does the KAT500 also switch with BCD data >> and >> 2) if so, can those data come from a KPA500 that is being controlled with >> serial data. (When I say Aux cable, I'm referring to the 15-pin cable that >> includes BCD (band) data." >> >> >> 1 - The KAT500 schematic shows it receives BCD band data. I assume that >> could be used to control the selected antenna but I don't see how it would >> be useful for selecting a tuning solution. >> >> 2 - The KPA500 schematic shows that BCD band data is receive only so it does >> not appear to be capable of sending band data to the KAT500. >> >> My "interesting project" computes and outputs Elecraft format BCD band data >> but I found no use for it and I disconnected it after initial testing. I >> control my KPA500 with the serial data band command "^BN" and I control my >> KAT500 with the serial data frequency command "f". My KAT500 and KPA500 >> always follow my TX frequency. I placed higher priority on avoiding KAT and >> KPA faults than on optimizing receive performance when split. >> >> Current KAT500 firmware can only follow VFO A (FA) if listening to a Kenwood >> rig that is being polled by a KPA500. The Kenwood TX VFO may be VFO A or >> VFO B. >> >> 73, >> Andy, k3wyc >> >> >> >> >> >> >> >> __ >> 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 wes_n...@triconet.org > > > __ > 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 jackbrin...@me.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] KPA500+KAT500 interfacing.
Jack, Thanks. All of this is hypothetical at the moment since I don't have a Kenwood, although I'm thinking about it. I'm getting too old and tired to wait for a K4. Wes, N7WS On 11/17/2020 10:06 PM, Jack Brindle wrote: I can answer this. I believe the answer to the first question is yes. The KAT500 can follow the BDC band data. The answer to the second is definitely no. The KPA500 does not output (nor does it have the capability) BCD band data. The port has input, but does not have output drive. To go further, while the KPA can talk over the Auxbus, the KAT does not have capability to decode the data. In fact the only devices with the capability to decode KPA500 Auxbus data are the K3, K3S and K4. While both can follow Kenwood-format serial data, and both will respond to a short transmission burst, there is an advantage to having the KAT500 follow the transceivers receive frequency since it keeps the antenna properly matched for the received frequency. In order to do this you really need to have the KAT receive the transceiver frequency stream. As others have noted, it can listen to Kenwood FA responses (which the KPA can poll for). Several folks have created rather interesting boxes that can receive band data from transceivers and communicate it to the KPA500 and KAT500. You might want to talk with Andy, K3WYC about his rather interesting project. 73, Jack, W6FB __ 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] KPA500+KAT500 interfacing
Thanks Andy. I'm starting to get my head around this. "Tis a pity that Elecraft didn't allow for the KPA500 to control the KAT500 via the band data bus and have an integrated Amp/Tuner combo that didn't require a proprietary interface. The tuning solutions are in the tuner memory so telling it, or letting it measure, the frequency recalls them. Wes On 11/18/2020 3:02 AM, Andy Durbin wrote: "I simply want to know: 1) does the KAT500 also switch with BCD data and 2) if so, can those data come from a KPA500 that is being controlled with serial data. (When I say Aux cable, I'm referring to the 15-pin cable that includes BCD (band) data." 1 - The KAT500 schematic shows it receives BCD band data. I assume that could be used to control the selected antenna but I don't see how it would be useful for selecting a tuning solution. 2 - The KPA500 schematic shows that BCD band data is receive only so it does not appear to be capable of sending band data to the KAT500. My "interesting project" computes and outputs Elecraft format BCD band data but I found no use for it and I disconnected it after initial testing. I control my KPA500 with the serial data band command "^BN" and I control my KAT500 with the serial data frequency command "f". My KAT500 and KPA500 always follow my TX frequency. I placed higher priority on avoiding KAT and KPA faults than on optimizing receive performance when split. Current KAT500 firmware can only follow VFO A (FA) if listening to a Kenwood rig that is being polled by a KPA500. The Kenwood TX VFO may be VFO A or VFO B. 73, Andy, k3wyc __ 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 wes_n...@triconet.org __ 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] KPA500+KAT500 interfacing
"I simply want to know: 1) does the KAT500 also switch with BCD data and 2) if so, can those data come from a KPA500 that is being controlled with serial data. (When I say Aux cable, I'm referring to the 15-pin cable that includes BCD (band) data." 1 - The KAT500 schematic shows it receives BCD band data. I assume that could be used to control the selected antenna but I don't see how it would be useful for selecting a tuning solution. 2 - The KPA500 schematic shows that BCD band data is receive only so it does not appear to be capable of sending band data to the KAT500. My "interesting project" computes and outputs Elecraft format BCD band data but I found no use for it and I disconnected it after initial testing. I control my KPA500 with the serial data band command "^BN" and I control my KAT500 with the serial data frequency command "f". My KAT500 and KPA500 always follow my TX frequency. I placed higher priority on avoiding KAT and KPA faults than on optimizing receive performance when split. Current KAT500 firmware can only follow VFO A (FA) if listening to a Kenwood rig that is being polled by a KPA500. The Kenwood TX VFO may be VFO A or VFO B. 73, Andy, k3wyc __ 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] KPA500+KAT500 interfacing.
I can answer this. I believe the answer to the first question is yes. The KAT500 can follow the BDC band data. The answer to the second is definitely no. The KPA500 does not output (nor does it have the capability) BCD band data. The port has input, but does not have output drive. To go further, while the KPA can talk over the Auxbus, the KAT does not have capability to decode the data. In fact the only devices with the capability to decode KPA500 Auxbus data are the K3, K3S and K4. While both can follow Kenwood-format serial data, and both will respond to a short transmission burst, there is an advantage to having the KAT500 follow the transceivers receive frequency since it keeps the antenna properly matched for the received frequency. In order to do this you really need to have the KAT receive the transceiver frequency stream. As others have noted, it can listen to Kenwood FA responses (which the KPA can poll for). Several folks have created rather interesting boxes that can receive band data from transceivers and communicate it to the KPA500 and KAT500. You might want to talk with Andy, K3WYC about his rather interesting project. 73, Jack, W6FB > On Nov 17, 2020, at 8:27 PM, Wes wrote: > > The answer may be no, but you're not responding to the question asked. > > The KPA500 can be switched with Serial or BCD data, in addition to the > Elecraft Aux Bus. I simply want to know: 1) does the KAT500 also switch with > BCD data and 2) if so, can those data come from a KPA500 that is being > controlled with serial data. (When I say Aux cable, I'm referring to the > 15-pin cable that includes BCD (band) data. > > > On 11/17/2020 12:23 PM, Don Wilhelm wrote: >> Wes, >> >> The answer is NO. The KAT500 and KPA500 take their AUX commands from the >> K3(S). >> >> On 11/17/2020 1:11 PM, Wes wrote: >>> I have a K3S interfaced to the KAT500 and KPA500 using the Aux cables. >>> >>> If I was to replace the K3S with a rig with only RS232 control of the >>> KPA500, will the Kat500 still follow along using the Aux cables. The Xcvr >>> and Amp connections on the KAT500 seem to be more or less a pass through. >>> >>> I know the KAT500 will switch using RF sensing, but that doesn't help in a >>> receive only situation, which I often employ. >>> >>> Wes N7WS >>> >>> __ >>> 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 donw...@embarqmail.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 jackbrin...@me.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] KPA500+KAT500 interfacing.
The answer may be no, but you're not responding to the question asked. The KPA500 can be switched with Serial or BCD data, in addition to the Elecraft Aux Bus. I simply want to know: 1) does the KAT500 also switch with BCD data and 2) if so, can those data come from a KPA500 that is being controlled with serial data. (When I say Aux cable, I'm referring to the 15-pin cable that includes BCD (band) data. On 11/17/2020 12:23 PM, Don Wilhelm wrote: Wes, The answer is NO. The KAT500 and KPA500 take their AUX commands from the K3(S). On 11/17/2020 1:11 PM, Wes wrote: I have a K3S interfaced to the KAT500 and KPA500 using the Aux cables. If I was to replace the K3S with a rig with only RS232 control of the KPA500, will the Kat500 still follow along using the Aux cables. The Xcvr and Amp connections on the KAT500 seem to be more or less a pass through. I know the KAT500 will switch using RF sensing, but that doesn't help in a receive only situation, which I often employ. Wes N7WS __ 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 donw...@embarqmail.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] KPA500+KAT500 interfacing.
Wes, The answer is NO. The KAT500 and KPA500 take their AUX commands from the K3(S). On 11/17/2020 1:11 PM, Wes wrote: I have a K3S interfaced to the KAT500 and KPA500 using the Aux cables. If I was to replace the K3S with a rig with only RS232 control of the KPA500, will the Kat500 still follow along using the Aux cables. The Xcvr and Amp connections on the KAT500 seem to be more or less a pass through. I know the KAT500 will switch using RF sensing, but that doesn't help in a receive only situation, which I often employ. Wes N7WS __ 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 donw...@embarqmail.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
[Elecraft] KPA500+KAT500 interfacing
"If I was to replace the K3S with a rig with only RS232 control of the KPA500, will the Kat500 still follow along using the Aux cables." I'm pretty sure the answer is "No". AUX cables don't do anything unless connected to an AUX compatible rig. It is, however, easy to feed the KAT500 with the rigs responses to KPA500 interrogations assuming the rig is Kenwood or Kenwood compatible. The KPA500 can be configured to poll for IF, FA, and FB. KAT500 is wired to listen to the FA responses. Email me for a cable sketch if you need it. Andy, k3wyc __ 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] KPA500+KAT500 interfacing.
I have a K3S interfaced to the KAT500 and KPA500 using the Aux cables. If I was to replace the K3S with a rig with only RS232 control of the KPA500, will the Kat500 still follow along using the Aux cables. The Xcvr and Amp connections on the KAT500 seem to be more or less a pass through. I know the KAT500 will switch using RF sensing, but that doesn't help in a receive only situation, which I often employ. Wes N7WS __ 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
