Peter thanks 10M IS the band in question! Bonding is good, using 1/2” wide braided copper strAt for K3 and the power supply and kpa1500 are bonded together with the same! All equip is bonded to a 10” X 24” copper plate. That plate has #6 hard drawn copper cadwelded to it, the #6 going through the floor of shack only 36” and is cadwelded to a 8’ copper clad ground rod. I’ll check the SO239’s today
Thanks all Ronnie W5Sum Sent from my iPhone > On May 9, 2020, at 4:43 AM, Peter Hall <p.h...@curtin.edu.au> wrote: > > Folks, > > This was the thread I half recalled: excess noise on 10 m. See reply from > Eric re S0239 washers. May not be applicable to present case (not sure which > bands are involved) but worth a check. > > http://elecraft.365791.n2.nabble.com/KPA1500-RFI-on-10-Meters-td7657067.html#a7657213 > > 73, Peter. > > > -----Original Message----- > From: Dave <rocke...@gmail.com> > Sent: Saturday, 9 May 2020 10:43 AM > To: Peter Hall <p.h...@curtin.edu.au> > Cc: w5...@comcast.net; Elecraft@mailman.qth.net > Subject: Re: [Elecraft] KPA1500 and noise > > Mine had noise on 80 meters. Elecraft sent me a load resistor to install in > the power supply across the 50 VDC terminals. Knocked the birdies down to the > noise floor. I also foo d there is a connection from the minus terminal to > the chassis that was loose. > > Serial number 423 and it has been working fine since. > > Dave wo2x > > Sent from my waxed string and tin cans. > >> On May 8, 2020, at 10:33 PM, Peter Hall <p.h...@curtin.edu.au> wrote: >> >> I don't recall the details but have you read the posts by the Elecraft guys >> some weeks ago related to excess noise and loose grounding nuts (on or near >> the SO239 connectors if I recall correctly)? >> >> My KPA1500 creates a tiny amount of additional noise on 6 m when switched to >> "operate" but nothing discernible elsewhere. >> >> 73, Peter. >> >> -----Original Message----- >> From: elecraft-boun...@mailman.qth.net >> <elecraft-boun...@mailman.qth.net> On Behalf Of w5...@comcast.net >> Sent: Saturday, 9 May 2020 8:41 AM >> To: rocke...@gmail.com; Elecraft@mailman.qth.net >> Subject: Re: [Elecraft] KPA1500 and noise >> >> only one antenna hooked to it, and that’s a sommer XP808 log fed yagi. No >> switches.! >> >> Ronnie W5SUM >> >> -----Original Message----- >> From: rocke...@gmail.com >> Sent: Friday, May 08, 2020 7:35 PM >> To: w5...@comcast.net ; Elecraft@mailman.qth.net >> Subject: RE: [Elecraft] KPA1500 and noise >> >> Need more details on what your antenna system is and especially what is >> connected to antenna 1 and 2 on the amp. >> Any antenna switches, etc. >> >> Dave wo2x >> >> >> >> -----Original Message----- >> From: elecraft-boun...@mailman.qth.net >> <elecraft-boun...@mailman.qth.net> On Behalf Of w5...@comcast.net >> Sent: Friday, May 8, 2020 8:28 PM >> To: Elecraft@mailman.qth.net >> Subject: [Elecraft] KPA1500 and noise >> >> Recently I have noticed that I have a very high noise lever at my QTH, >> which I have never had. Today as I was shutting down my station I >> turned off the >> KPA1500 first, and my noise dropped from S7 to S1 instantly. >> >> I turned the Amp back on and the noise came back. Have any of you ever >> observed this? >> >> Thanks in advance >> >> Ronnie W5SUM >> >> ______________________________________________________________ >> 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 >> rocke...@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 >> p.h...@curtin.edu.au >> ______________________________________________________________ >> 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 >> rocke...@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
