Re: [Elecraft] Using KAT-500 without BAND Information
True but there are tuning solutions that appear safe at low power yet exceed the amp return voltage allowances at high power (it isn’t the best tuning mix) and trip the amp. The amp is re-enabled as soon as the tuning is completed, a risk. So it’s wise to at least test the match after tuning, with the amp on, with just the tuning energy and if ok (medium power out of the amp), then raise to the desired level of output for a ‘final’ test. At least until the tuner has been programmed for all bins in each band. Using resonant antennas is SO much simpler. 😉 Rick NK7I Smell Czech corruptions are inevitable > On Jan 8, 2020, at 6:51 PM, Lyn Norstad wrote: > > Jack - > > I don't see any need to do that. The tuner cuts the amp until the new > antenna is tuned. > > 73 > Lyn, WØLEN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
Re: [Elecraft] Using KAT-500 without BAND Information
Jack - I don't see any need to do that. The tuner cuts the amp until the new antenna is tuned. 73 Lyn, WØLEN -Original Message- From: Jack Spitznagel [mailto:[email protected]] Sent: Wednesday, January 08, 2020 8:06 PM To: Tom KG3V Cc: [email protected]; Bob McGraw K4TAX; [email protected] Subject: Re: [Elecraft] Using KAT-500 without BAND Information Hi Tom, I am also a very happy KPA500/KAT500 user with an IC7000, 7100, and 7300. I home brewed my own interface for the antenna tuner and the “big DIN” connector. They all start an autoswitch routine to memorized frequency values that is fast and accurate. I always put the KPA500 in standby when I change bands that require an antenna switch over. Never owned a better Amp/Tuner combo. Jack - KD4IZ Sent from my iPhone > On Jan 8, 2020, at 19:55, Tom KG3V wrote: > > Lyn, > > That is very interesting. Maybe I have an issue that I do not understand. It > sounds like your setup is working as I would have expected. I also have a > 7300, so I will have to give that a try. I do not usually use the 7300 with > the KAT-500 and I am a little worried about powering the KAT-500 from the > 7300. > > 73, > > Tom, KG3V > > >> On 1/8/2020 4:49 PM, Lyn Norstad wrote: >> >> Coming in late on this discussion ... but wanting to add my .02 worth. >> >> I have a setup similar to Tom's, except I have the IC-7300. With that unit, >> the KAT500 does, in fact, follow band changes on the 7300 with the */FIRST >> /*TUNE request. It doesn't matter if I hit TUNE on the KAT, the 7300 or in >> software (FT8). >> >> The KPA is already on the correct band, as it DOES follow band changes on >> the 7300. >> >> Lyn, W0LEN >> >> -Original Message- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Bob McGraw K4TAX >> Sent: Thursday, December 26, 2019 12:19 PM >> To: Tom KG3V >> Cc: [email protected] >> Subject: Re: [Elecraft] Using KAT-500 without BAND Information >> >> Check the KAT500 utility to see which antennas are authorized and for which >> bands. You will need to supply RF from the IC7600 in order for the KAT 500 >> to know what to do. >> >> If you have 2 antennas authorized for the same band that will confuse the >> issue. Also selecting LastUsed may be an issue where band data is not >> available. >> >> Bob, K4TAX >> >> Sent from my iPhone >> >> > On Dec 26, 2019, at 10:58 AM, Tom KG3V wrote: >> >> > >> >> > Don, >> >> > >> >> > Good to hear from you. You helped me many times with K2 questions in the >> > past. Thanks for that! Hope you are enjoying the Holiday Season. >> >> > >> >> > I actually meant the TUNE button on the IC-7600. You must have meant on >> > the KAT-500, since there is not a TUNE button on the KPA-500. It does not >> > seem to matter which TUNE button I press. I think you confirmed that it is >> > working as expected. Still a bit annoying. As soon as the TUNE cycle >> > starts, of course there is RF. I guess the KAT-500 is not sensing >> > frequency DURING the TUNE event. So, any time I switch Bands, I may go >> > through a "complete" Tune cycle with an antenna for the wrong Band. Of >> > course, that most likely will not complete with a match. The second TUNE >> > cycle always selects the desired antenna. >> >> > >> >> > I think I need to send the Band information from the IC-7600 to the >> > KAT-500. My other option will be to use only one antenna with the KAT-500 >> > during Contests. Is it safe to assume that if I send the Band info, this >> > would not happen and the first TUNE cycle would be with the "correct" >> > antenna? >> >> > >> >> > 73, >> >> > >> >> > Tom, KG3V >> >> > >> >> > >> >> > >> >> >> On 12/26/2019 11:15 AM, Don Wilhelm wrote: >> >> >> Tom, >> >> >> >> >> >> If by "hit the TUNE button", you are referring to the TUNE button on the >> >> KPA500, those results are completely understandable. >> >> >> >> >> >> Changing bands on your transceiver is not communicated to the KAT500 yet >> >> - (it will only be communicated when you provide RF to the KAT500). >> >> >> >> >> >> So the
Re: [Elecraft] Using KAT-500 without BAND Information
Tom - There is no problem in powering the KAT500 from the IC7300. Works like a charm, and powers as the Icom AH4 tuner does. 73 Lyn, WØLEN -Original Message- From: Jack Spitznagel [mailto:[email protected]] Sent: Wednesday, January 08, 2020 8:06 PM To: Tom KG3V Cc: [email protected]; Bob McGraw K4TAX; [email protected] Subject: Re: [Elecraft] Using KAT-500 without BAND Information Hi Tom, I am also a very happy KPA500/KAT500 user with an IC7000, 7100, and 7300. I home brewed my own interface for the antenna tuner and the “big DIN” connector. They all start an autoswitch routine to memorized frequency values that is fast and accurate. I always put the KPA500 in standby when I change bands that require an antenna switch over. Never owned a better Amp/Tuner combo. Jack - KD4IZ Sent from my iPhone > On Jan 8, 2020, at 19:55, Tom KG3V wrote: > > Lyn, > > That is very interesting. Maybe I have an issue that I do not understand. It > sounds like your setup is working as I would have expected. I also have a > 7300, so I will have to give that a try. I do not usually use the 7300 with > the KAT-500 and I am a little worried about powering the KAT-500 from the > 7300. > > 73, > > Tom, KG3V > > >> On 1/8/2020 4:49 PM, Lyn Norstad wrote: >> >> Coming in late on this discussion ... but wanting to add my .02 worth. >> >> I have a setup similar to Tom's, except I have the IC-7300. With that unit, >> the KAT500 does, in fact, follow band changes on the 7300 with the */FIRST >> /*TUNE request. It doesn't matter if I hit TUNE on the KAT, the 7300 or in >> software (FT8). >> >> The KPA is already on the correct band, as it DOES follow band changes on >> the 7300. >> >> Lyn, W0LEN >> >> -Original Message- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Bob McGraw K4TAX >> Sent: Thursday, December 26, 2019 12:19 PM >> To: Tom KG3V >> Cc: [email protected] >> Subject: Re: [Elecraft] Using KAT-500 without BAND Information >> >> Check the KAT500 utility to see which antennas are authorized and for which >> bands. You will need to supply RF from the IC7600 in order for the KAT 500 >> to know what to do. >> >> If you have 2 antennas authorized for the same band that will confuse the >> issue. Also selecting LastUsed may be an issue where band data is not >> available. >> >> Bob, K4TAX >> >> Sent from my iPhone >> >> > On Dec 26, 2019, at 10:58 AM, Tom KG3V wrote: >> >> > >> >> > Don, >> >> > >> >> > Good to hear from you. You helped me many times with K2 questions in the >> > past. Thanks for that! Hope you are enjoying the Holiday Season. >> >> > >> >> > I actually meant the TUNE button on the IC-7600. You must have meant on >> > the KAT-500, since there is not a TUNE button on the KPA-500. It does not >> > seem to matter which TUNE button I press. I think you confirmed that it is >> > working as expected. Still a bit annoying. As soon as the TUNE cycle >> > starts, of course there is RF. I guess the KAT-500 is not sensing >> > frequency DURING the TUNE event. So, any time I switch Bands, I may go >> > through a "complete" Tune cycle with an antenna for the wrong Band. Of >> > course, that most likely will not complete with a match. The second TUNE >> > cycle always selects the desired antenna. >> >> > >> >> > I think I need to send the Band information from the IC-7600 to the >> > KAT-500. My other option will be to use only one antenna with the KAT-500 >> > during Contests. Is it safe to assume that if I send the Band info, this >> > would not happen and the first TUNE cycle would be with the "correct" >> > antenna? >> >> > >> >> > 73, >> >> > >> >> > Tom, KG3V >> >> > >> >> > >> >> > >> >> >> On 12/26/2019 11:15 AM, Don Wilhelm wrote: >> >> >> Tom, >> >> >> >> >> >> If by "hit the TUNE button", you are referring to the TUNE button on the >> >> KPA500, those results are completely understandable. >> >> >> >> >> >> Changing bands on your transceiver is not communicated to the KAT500 yet >> >> - (it will only be communicated when you provide RF to the KAT500). >> >> >> >> >>
Re: [Elecraft] Using KAT-500 without BAND Information
Hi Tom, I am also a very happy KPA500/KAT500 user with an IC7000, 7100, and 7300. I home brewed my own interface for the antenna tuner and the “big DIN” connector. They all start an autoswitch routine to memorized frequency values that is fast and accurate. I always put the KPA500 in standby when I change bands that require an antenna switch over. Never owned a better Amp/Tuner combo. Jack - KD4IZ Sent from my iPhone > On Jan 8, 2020, at 19:55, Tom KG3V wrote: > > Lyn, > > That is very interesting. Maybe I have an issue that I do not understand. It > sounds like your setup is working as I would have expected. I also have a > 7300, so I will have to give that a try. I do not usually use the 7300 with > the KAT-500 and I am a little worried about powering the KAT-500 from the > 7300. > > 73, > > Tom, KG3V > > >> On 1/8/2020 4:49 PM, Lyn Norstad wrote: >> >> Coming in late on this discussion ... but wanting to add my .02 worth. >> >> I have a setup similar to Tom's, except I have the IC-7300. With that unit, >> the KAT500 does, in fact, follow band changes on the 7300 with the */FIRST >> /*TUNE request. It doesn't matter if I hit TUNE on the KAT, the 7300 or in >> software (FT8). >> >> The KPA is already on the correct band, as it DOES follow band changes on >> the 7300. >> >> Lyn, W0LEN >> >> -Original Message- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Bob McGraw K4TAX >> Sent: Thursday, December 26, 2019 12:19 PM >> To: Tom KG3V >> Cc: [email protected] >> Subject: Re: [Elecraft] Using KAT-500 without BAND Information >> >> Check the KAT500 utility to see which antennas are authorized and for which >> bands. You will need to supply RF from the IC7600 in order for the KAT 500 >> to know what to do. >> >> If you have 2 antennas authorized for the same band that will confuse the >> issue. Also selecting LastUsed may be an issue where band data is not >> available. >> >> Bob, K4TAX >> >> Sent from my iPhone >> >> > On Dec 26, 2019, at 10:58 AM, Tom KG3V wrote: >> >> > >> >> > Don, >> >> > >> >> > Good to hear from you. You helped me many times with K2 questions in the >> > past. Thanks for that! Hope you are enjoying the Holiday Season. >> >> > >> >> > I actually meant the TUNE button on the IC-7600. You must have meant on >> > the KAT-500, since there is not a TUNE button on the KPA-500. It does not >> > seem to matter which TUNE button I press. I think you confirmed that it is >> > working as expected. Still a bit annoying. As soon as the TUNE cycle >> > starts, of course there is RF. I guess the KAT-500 is not sensing >> > frequency DURING the TUNE event. So, any time I switch Bands, I may go >> > through a "complete" Tune cycle with an antenna for the wrong Band. Of >> > course, that most likely will not complete with a match. The second TUNE >> > cycle always selects the desired antenna. >> >> > >> >> > I think I need to send the Band information from the IC-7600 to the >> > KAT-500. My other option will be to use only one antenna with the KAT-500 >> > during Contests. Is it safe to assume that if I send the Band info, this >> > would not happen and the first TUNE cycle would be with the "correct" >> > antenna? >> >> > >> >> > 73, >> >> > >> >> > Tom, KG3V >> >> > >> >> > >> >> > >> >> >> On 12/26/2019 11:15 AM, Don Wilhelm wrote: >> >> >> Tom, >> >> >> >> >> >> If by "hit the TUNE button", you are referring to the TUNE button on the >> >> KPA500, those results are completely understandable. >> >> >> >> >> >> Changing bands on your transceiver is not communicated to the KAT500 yet >> >> - (it will only be communicated when you provide RF to the KAT500). >> >> >> >> >> >> So the KAT500 will not switch bands and will attempt to tune on the wrong >> >> antenna initially. Once the KAT500 senses RF, it will know that the band >> >> is not correct and will switch to the proper antenna for the band in use. >> >> >> >> >> >> In your second scenerio, you are providing RF to the KAT500 first and it &g
Re: [Elecraft] Using KAT-500 without BAND Information
Lyn, That is very interesting. Maybe I have an issue that I do not understand. It sounds like your setup is working as I would have expected. I also have a 7300, so I will have to give that a try. I do not usually use the 7300 with the KAT-500 and I am a little worried about powering the KAT-500 from the 7300. 73, Tom, KG3V On 1/8/2020 4:49 PM, Lyn Norstad wrote: Coming in late on this discussion ... but wanting to add my .02 worth. I have a setup similar to Tom's, except I have the IC-7300. With that unit, the KAT500 does, in fact, follow band changes on the 7300 with the */FIRST /*TUNE request. It doesn't matter if I hit TUNE on the KAT, the 7300 or in software (FT8). The KPA is already on the correct band, as it DOES follow band changes on the 7300. Lyn, W0LEN -Original Message- From: [email protected] [mailto:[email protected]] On Behalf Of Bob McGraw K4TAX Sent: Thursday, December 26, 2019 12:19 PM To: Tom KG3V Cc: [email protected] Subject: Re: [Elecraft] Using KAT-500 without BAND Information Check the KAT500 utility to see which antennas are authorized and for which bands. You will need to supply RF from the IC7600 in order for the KAT 500 to know what to do. If you have 2 antennas authorized for the same band that will confuse the issue. Also selecting LastUsed may be an issue where band data is not available. Bob, K4TAX Sent from my iPhone > On Dec 26, 2019, at 10:58 AM, Tom KG3V wrote: > > Don, > > Good to hear from you. You helped me many times with K2 questions in the past. Thanks for that! Hope you are enjoying the Holiday Season. > > I actually meant the TUNE button on the IC-7600. You must have meant on the KAT-500, since there is not a TUNE button on the KPA-500. It does not seem to matter which TUNE button I press. I think you confirmed that it is working as expected. Still a bit annoying. As soon as the TUNE cycle starts, of course there is RF. I guess the KAT-500 is not sensing frequency DURING the TUNE event. So, any time I switch Bands, I may go through a "complete" Tune cycle with an antenna for the wrong Band. Of course, that most likely will not complete with a match. The second TUNE cycle always selects the desired antenna. > > I think I need to send the Band information from the IC-7600 to the KAT-500. My other option will be to use only one antenna with the KAT-500 during Contests. Is it safe to assume that if I send the Band info, this would not happen and the first TUNE cycle would be with the "correct" antenna? > > 73, > > Tom, KG3V > > > >> On 12/26/2019 11:15 AM, Don Wilhelm wrote: >> Tom, >> >> If by "hit the TUNE button", you are referring to the TUNE button on the KPA500, those results are completely understandable. >> >> Changing bands on your transceiver is not communicated to the KAT500 yet - (it will only be communicated when you provide RF to the KAT500). >> >> So the KAT500 will not switch bands and will attempt to tune on the wrong antenna initially. Once the KAT500 senses RF, it will know that the band is not correct and will switch to the proper antenna for the band in use. >> >> In your second scenerio, you are providing RF to the KAT500 first and it will behave properly, so use that sequence. >> >> You should not have any problems with the KPA500 if you have the keying cable run correctly - from the transceiver to the KAT500 and then from the KAT500 to the KPA500. >> The KAT500 interrupts the keying line to the KPA500 so the tuning is done only with the exciter power level. >> >> 73 and HNY, >> Don W3FPR >> >>> On 12/26/2019 9:39 AM, Tom KG3V wrote: >>> I am using a KAT-500 Tuner with an ICOM IC-7600. I am not providing BAND data, which is in line with recommendations for connecting this radio in the Elecraft manuals. The documents tell me that RF Frequency-sensing overrides all other information. I have two antennas enabled. ANT 1 is a vertical for 10-40 meters. ANT 2 is an 80 meter dipole. I only ENABLE ANT 2 for 80 meters and only ENABLE ANT 1 for all other Bands, in the KAT Config. >>> >>> If I change Bands and hit the Tune button, KAT-500 will not change to the correct antenna Instead, it tries to Tune with the wrong antenna. The second time I hit TUNE, it will go to the correct antenna. If instead, I change Bands and hit the Key, the correct antenna is selected. That is fine on CW, but not great for other Modes. Is this a bug? I don't see how this could be desirable. I think this would be especially bad if I have the KPA-500 powered-ON. >>> > -- > Get on the Air and make some noise > Ham Blog at WWW.KG3V.COM > > _
Re: [Elecraft] Using KAT-500 without BAND Information
Coming in late on this discussion ... but wanting to add my .02 worth. I have a setup similar to Tom's, except I have the IC-7300. With that unit, the KAT500 does, in fact, follow band changes on the 7300 with the FIRST TUNE request. It doesn't matter if I hit TUNE on the KAT, the 7300 or in software (FT8). The KPA is already on the correct band, as it DOES follow band changes on the 7300. Lyn, W0LEN -Original Message- From: [email protected] [mailto:[email protected]] On Behalf Of Bob McGraw K4TAX Sent: Thursday, December 26, 2019 12:19 PM To: Tom KG3V Cc: [email protected] Subject: Re: [Elecraft] Using KAT-500 without BAND Information Check the KAT500 utility to see which antennas are authorized and for which bands. You will need to supply RF from the IC7600 in order for the KAT 500 to know what to do. If you have 2 antennas authorized for the same band that will confuse the issue. Also selecting LastUsed may be an issue where band data is not available. Bob, K4TAX Sent from my iPhone > On Dec 26, 2019, at 10:58 AM, Tom KG3V wrote: > > Don, > > Good to hear from you. You helped me many times with K2 questions in the > past. Thanks for that! Hope you are enjoying the Holiday Season. > > I actually meant the TUNE button on the IC-7600. You must have meant on the > KAT-500, since there is not a TUNE button on the KPA-500. It does not seem to > matter which TUNE button I press. I think you confirmed that it is working as > expected. Still a bit annoying. As soon as the TUNE cycle starts, of course > there is RF. I guess the KAT-500 is not sensing frequency DURING the TUNE > event. So, any time I switch Bands, I may go through a "complete" Tune cycle > with an antenna for the wrong Band. Of course, that most likely will not > complete with a match. The second TUNE cycle always selects the desired > antenna. > > I think I need to send the Band information from the IC-7600 to the KAT-500. > My other option will be to use only one antenna with the KAT-500 during > Contests. Is it safe to assume that if I send the Band info, this would not > happen and the first TUNE cycle would be with the "correct" antenna? > > 73, > > Tom, KG3V > > > >> On 12/26/2019 11:15 AM, Don Wilhelm wrote: >> Tom, >> >> If by "hit the TUNE button", you are referring to the TUNE button on the >> KPA500, those results are completely understandable. >> >> Changing bands on your transceiver is not communicated to the KAT500 yet - >> (it will only be communicated when you provide RF to the KAT500). >> >> So the KAT500 will not switch bands and will attempt to tune on the wrong >> antenna initially. Once the KAT500 senses RF, it will know that the band is >> not correct and will switch to the proper antenna for the band in use. >> >> In your second scenerio, you are providing RF to the KAT500 first and it >> will behave properly, so use that sequence. >> >> You should not have any problems with the KPA500 if you have the keying >> cable run correctly - from the transceiver to the KAT500 and then from the >> KAT500 to the KPA500. >> The KAT500 interrupts the keying line to the KPA500 so the tuning is done >> only with the exciter power level. >> >> 73 and HNY, >> Don W3FPR >> >>> On 12/26/2019 9:39 AM, Tom KG3V wrote: >>> I am using a KAT-500 Tuner with an ICOM IC-7600. I am not providing BAND >>> data, which is in line with recommendations for connecting this radio in >>> the Elecraft manuals. The documents tell me that RF Frequency-sensing >>> overrides all other information. I have two antennas enabled. ANT 1 is a >>> vertical for 10-40 meters. ANT 2 is an 80 meter dipole. I only ENABLE ANT 2 >>> for 80 meters and only ENABLE ANT 1 for all other Bands, in the KAT Config. >>> >>> If I change Bands and hit the Tune button, KAT-500 will not change to the >>> correct antenna Instead, it tries to Tune with the wrong antenna. The >>> second time I hit TUNE, it will go to the correct antenna. If instead, I >>> change Bands and hit the Key, the correct antenna is selected. That is fine >>> on CW, but not great for other Modes. Is this a bug? I don't see how this >>> could be desirable. I think this would be especially bad if I have the >>> KPA-500 powered-ON. >>> > -- > Get on the Air and make some noise > Ham Blog at WWW.KG3V.COM > > __ > Elecraft mailing list
Re: [Elecraft] Using KAT-500 without BAND Information
Check the KAT500 utility to see which antennas are authorized and for which bands. You will need to supply RF from the IC7600 in order for the KAT 500 to know what to do. If you have 2 antennas authorized for the same band that will confuse the issue. Also selecting LastUsed may be an issue where band data is not available. Bob, K4TAX Sent from my iPhone > On Dec 26, 2019, at 10:58 AM, Tom KG3V wrote: > > Don, > > Good to hear from you. You helped me many times with K2 questions in the > past. Thanks for that! Hope you are enjoying the Holiday Season. > > I actually meant the TUNE button on the IC-7600. You must have meant on the > KAT-500, since there is not a TUNE button on the KPA-500. It does not seem to > matter which TUNE button I press. I think you confirmed that it is working as > expected. Still a bit annoying. As soon as the TUNE cycle starts, of course > there is RF. I guess the KAT-500 is not sensing frequency DURING the TUNE > event. So, any time I switch Bands, I may go through a "complete" Tune cycle > with an antenna for the wrong Band. Of course, that most likely will not > complete with a match. The second TUNE cycle always selects the desired > antenna. > > I think I need to send the Band information from the IC-7600 to the KAT-500. > My other option will be to use only one antenna with the KAT-500 during > Contests. Is it safe to assume that if I send the Band info, this would not > happen and the first TUNE cycle would be with the "correct" antenna? > > 73, > > Tom, KG3V > > > >> On 12/26/2019 11:15 AM, Don Wilhelm wrote: >> Tom, >> >> If by "hit the TUNE button", you are referring to the TUNE button on the >> KPA500, those results are completely understandable. >> >> Changing bands on your transceiver is not communicated to the KAT500 yet - >> (it will only be communicated when you provide RF to the KAT500). >> >> So the KAT500 will not switch bands and will attempt to tune on the wrong >> antenna initially. Once the KAT500 senses RF, it will know that the band is >> not correct and will switch to the proper antenna for the band in use. >> >> In your second scenerio, you are providing RF to the KAT500 first and it >> will behave properly, so use that sequence. >> >> You should not have any problems with the KPA500 if you have the keying >> cable run correctly - from the transceiver to the KAT500 and then from the >> KAT500 to the KPA500. >> The KAT500 interrupts the keying line to the KPA500 so the tuning is done >> only with the exciter power level. >> >> 73 and HNY, >> Don W3FPR >> >>> On 12/26/2019 9:39 AM, Tom KG3V wrote: >>> I am using a KAT-500 Tuner with an ICOM IC-7600. I am not providing BAND >>> data, which is in line with recommendations for connecting this radio in >>> the Elecraft manuals. The documents tell me that RF Frequency-sensing >>> overrides all other information. I have two antennas enabled. ANT 1 is a >>> vertical for 10-40 meters. ANT 2 is an 80 meter dipole. I only ENABLE ANT 2 >>> for 80 meters and only ENABLE ANT 1 for all other Bands, in the KAT Config. >>> >>> If I change Bands and hit the Tune button, KAT-500 will not change to the >>> correct antenna Instead, it tries to Tune with the wrong antenna. The >>> second time I hit TUNE, it will go to the correct antenna. If instead, I >>> change Bands and hit the Key, the correct antenna is selected. That is fine >>> on CW, but not great for other Modes. Is this a bug? I don't see how this >>> could be desirable. I think this would be especially bad if I have the >>> KPA-500 powered-ON. >>> > -- > Get on the Air and make some noise > Ham Blog at WWW.KG3V.COM > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
Re: [Elecraft] Using KAT-500 without BAND Information
Don, Good to hear from you. You helped me many times with K2 questions in the past. Thanks for that! Hope you are enjoying the Holiday Season. I actually meant the TUNE button on the IC-7600. You must have meant on the KAT-500, since there is not a TUNE button on the KPA-500. It does not seem to matter which TUNE button I press. I think you confirmed that it is working as expected. Still a bit annoying. As soon as the TUNE cycle starts, of course there is RF. I guess the KAT-500 is not sensing frequency DURING the TUNE event. So, any time I switch Bands, I may go through a "complete" Tune cycle with an antenna for the wrong Band. Of course, that most likely will not complete with a match. The second TUNE cycle always selects the desired antenna. I think I need to send the Band information from the IC-7600 to the KAT-500. My other option will be to use only one antenna with the KAT-500 during Contests. Is it safe to assume that if I send the Band info, this would not happen and the first TUNE cycle would be with the "correct" antenna? 73, Tom, KG3V On 12/26/2019 11:15 AM, Don Wilhelm wrote: Tom, If by "hit the TUNE button", you are referring to the TUNE button on the KPA500, those results are completely understandable. Changing bands on your transceiver is not communicated to the KAT500 yet - (it will only be communicated when you provide RF to the KAT500). So the KAT500 will not switch bands and will attempt to tune on the wrong antenna initially. Once the KAT500 senses RF, it will know that the band is not correct and will switch to the proper antenna for the band in use. In your second scenerio, you are providing RF to the KAT500 first and it will behave properly, so use that sequence. You should not have any problems with the KPA500 if you have the keying cable run correctly - from the transceiver to the KAT500 and then from the KAT500 to the KPA500. The KAT500 interrupts the keying line to the KPA500 so the tuning is done only with the exciter power level. 73 and HNY, Don W3FPR On 12/26/2019 9:39 AM, Tom KG3V wrote: I am using a KAT-500 Tuner with an ICOM IC-7600. I am not providing BAND data, which is in line with recommendations for connecting this radio in the Elecraft manuals. The documents tell me that RF Frequency-sensing overrides all other information. I have two antennas enabled. ANT 1 is a vertical for 10-40 meters. ANT 2 is an 80 meter dipole. I only ENABLE ANT 2 for 80 meters and only ENABLE ANT 1 for all other Bands, in the KAT Config. If I change Bands and hit the Tune button, KAT-500 will not change to the correct antenna Instead, it tries to Tune with the wrong antenna. The second time I hit TUNE, it will go to the correct antenna. If instead, I change Bands and hit the Key, the correct antenna is selected. That is fine on CW, but not great for other Modes. Is this a bug? I don't see how this could be desirable. I think this would be especially bad if I have the KPA-500 powered-ON. -- Get on the Air and make some noise Ham Blog at WWW.KG3V.COM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
Re: [Elecraft] Using KAT-500 without BAND Information
Tom, If by "hit the TUNE button", you are referring to the TUNE button on the KPA500, those results are completely understandable. Changing bands on your transceiver is not communicated to the KAT500 yet - (it will only be communicated when you provide RF to the KAT500). So the KAT500 will not switch bands and will attempt to tune on the wrong antenna initially. Once the KAT500 senses RF, it will know that the band is not correct and will switch to the proper antenna for the band in use. In your second scenerio, you are providing RF to the KAT500 first and it will behave properly, so use that sequence. You should not have any problems with the KPA500 if you have the keying cable run correctly - from the transceiver to the KAT500 and then from the KAT500 to the KPA500. The KAT500 interrupts the keying line to the KPA500 so the tuning is done only with the exciter power level. 73 and HNY, Don W3FPR On 12/26/2019 9:39 AM, Tom KG3V wrote: I am using a KAT-500 Tuner with an ICOM IC-7600. I am not providing BAND data, which is in line with recommendations for connecting this radio in the Elecraft manuals. The documents tell me that RF Frequency-sensing overrides all other information. I have two antennas enabled. ANT 1 is a vertical for 10-40 meters. ANT 2 is an 80 meter dipole. I only ENABLE ANT 2 for 80 meters and only ENABLE ANT 1 for all other Bands, in the KAT Config. If I change Bands and hit the Tune button, KAT-500 will not change to the correct antenna Instead, it tries to Tune with the wrong antenna. The second time I hit TUNE, it will go to the correct antenna. If instead, I change Bands and hit the Key, the correct antenna is selected. That is fine on CW, but not great for other Modes. Is this a bug? I don't see how this could be desirable. I think this would be especially bad if I have the KPA-500 powered-ON. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
