KPA1500 Help!!
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Hello All,
Received my new KPA1500 a few days ago! I love the Amp but I have an issue maybe someone can help with!! The KPA1500 does NOT play well with other rigs!! I am driving it with a Yaesu FTdx5000! There is a very big difference in drive levels for different Bands!! For instance on 160 the drive is 20 watts. On 20 the drive is 45 Watts!! If I change bands I could overdrive the amp to a fault!! I did not have this problem with my Acom 2000! Any help would be much appreciated! Maybe some way to retune the amps input circuit?? Many Thanks in advance... 73, Ted K2QMF ____________________________________________________________ Urologist Tells Men To "Fix" Their ED With This New Trick! Med Journal http://thirdpartyoffers.juno.com/TGL3141/5df1056fc420a56e4f72st02vuc ______________________________________________________________ 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 Message delivered to [hidden email] |
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Maybe retune the amps input circuit??
Will the 5000 not set the per band output? 73s Bob W5RG On Wednesday, December 11, 2019, 9:12:35 AM CST, Salvatore Ted K2QMF <[hidden email]> wrote: Hello All, Received my new KPA1500 a few days ago! I love the Amp but I have an issue maybe someone can help with!! The KPA1500 does NOT play well with other rigs!! I am driving it with a Yaesu FTdx5000! There is a very big difference in drive levels for different Bands!! For instance on 160 the drive is 20 watts. On 20 the drive is 45 Watts!! If I change bands I could overdrive the amp to a fault!! I did not have this problem with my Acom 2000! Any help would be much appreciated! Maybe some way to retune the amps input circuit?? Many Thanks in advance... 73, Ted K2QMF ____________________________________________________________ Urologist Tells Men To "Fix" Their ED With This New Trick! Med Journal http://thirdpartyoffers.juno.com/TGL3141/5df1056fc420a56e4f72st02vuc ______________________________________________________________ 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 Message delivered to [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Salvatore Ted K2QMF
Hi Ted
It is very difficult to design an amp that does what you ask. Yes, my ACOM wasn’t bad, but it still have some variance if I went from 160M to 6M. Every amp I have owned has required different drive on each band. I have worked that into my procedure that every time I change bands I confirm drive levels to be sure. There are some solutions that works well with other radios if you want this fully automated. The Flex world of radios has some excellent auto drive tools (DDUTIL). Sorry, I don’t know if there is something that would work for your radio.l Sorry it isn’t what you expected. What caused you to change from your ACOM 2000? It sounds like it was a perfect match for you. Mike va3mw > On Dec 11, 2019, at 10:06 AM, Salvatore Ted K2QMF <[hidden email]> wrote: > > Hello All, > Received my new KPA1500 a few days ago! > I love the Amp but I have an issue maybe someone can help with!! > The KPA1500 does NOT play well with other rigs!! > I am driving it with a Yaesu FTdx5000! There is a very big difference in drive levels for different Bands!! For instance on 160 the drive is 20 watts. On 20 the drive is 45 Watts!! If I change bands I could overdrive the amp to a fault!! > I did not have this problem with my Acom 2000! > Any help would be much appreciated! > Maybe some way to retune the amps input circuit?? > Many Thanks in advance... > 73, > Ted K2QMF > ____________________________________________________________ > Urologist Tells Men To "Fix" Their ED With This New Trick! > Med Journal > http://thirdpartyoffers.juno.com/TGL3141/5df1056fc420a56e4f72st02vuc > ______________________________________________________________ > 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 > Message delivered to [hidden email] 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 Message delivered to [hidden email] |
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