[Elecraft] OT: Need Antenna Help
Dear Gang: I can no longer work up on my small tower, and need to find someone who does antenna work professionally or semi-pro in the south San Francisco bay area. Please email me any recommendations off-list Thanks! 73, Eric WD6DBM  __ 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] KX3/KPA100/Powerwerx Question
Dein Englisch ist viel besser als mein Deutsch! On 6/10/22 15:44, df...@darc.de wrote: Or this. While vacuuming it’s recommended to block the fan so it cannot rotate. In some cases, when the blades are driven bei the airflow too fast, the fan works as a generator and sends some voltage into the unit - which can be harmless but also can destroy sensitive electronics (if there is any inside the supply). 73 Hans, DF3DD (Please forgive my english, it was 50something years ago when I learned it at school. And forgive if I write naturalnesses instead of real hints.) __ 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] KX3/KPA100/Powerwerx Question
Or this. While vacuuming it’s recommended to block the fan so it cannot rotate. In some cases, when the blades are driven bei the airflow too fast, the fan works as a generator and sends some voltage into the unit - which can be harmless but also can destroy sensitive electronics (if there is any inside the supply). 73 Hans, DF3DD (Please forgive my english, it was 50something years ago when I learned it at school. And forgive if I write naturalnesses instead of real hints.) > Am 10.06.2022 um 16:12 schrieb Kevin McQuiggin : > > I suggest taking the lid off of the power supply and inspecting the fan for > dust. It can accumulate and affect the free rotation of the fan, generating > noise. A vacuuming might be in order. > > 73, > > Kevin VE7ZD/KN7Q > > > On June 10, 2022 1:18:51 a.m. PDT, "df...@darc.de" wrote: > Maybe it’s the cooling fan of the power supply. When more power is needed the > supply gets warmer and the fan spins faster - so you can hear it then. If > it’s too annoying, there are more quiet fans with which you could replace the > original fan. > > 73 > Hans, DF3DD > > > > > Am 10.06.2022 um 07:37 schrieb Jim Ruff via Elecraft > : > > I have a KX3/KPA100/Powerwerx setup. When I run the rig with the amp on, my > Powerwerx 30 amp power supply makes a whirling sound. If I run the rig > without the amp, the power supply makes no noise. When I run may K3 it makes > no noise. Is there a problem causing the noise?Thanks,Jim W7JHR > > > > Sent from Yahoo Mail. Get the app > 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 df...@darc.de > 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 mcqui...@sfu.ca __ 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] KX3/KPA100/Powerwerx Question
I assume RF power level settings for the KXPA100 and K3 are the same? I had similar issues with the Powerwerx, but it occurs only with loads above 15 amps for any length of time. The fan noise was so loud it was annoying. With some age on the supply it's much worse. I swapped to an Astron Linear years ago and have never looked back - no fan, no noise. I leave it on all of the time to keep my battery plant charged using a Low Loss Power gate. Hank K4HYJ - Original Message - From: Jim Ruff via Elecraft (elecraft@mailman.qth.net) Date: 06/10/22 01:38 To: elecraft@mailman.qth.net Subject: [Elecraft] KX3/KPA100/Powerwerx Question I have a KX3/KPA100/Powerwerx setup. When I run the rig with the amp on, my Powerwerx 30 amp power supply makes a whirling sound. If I run the rig without the amp, the power supply makes no noise. When I run may K3 it makes no noise. Is there a problem causing the noise?Thanks,Jim W7JHR Sent from Yahoo Mail. Get the app __ 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 h...@optilink.us __ 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] KX3/KPA100/Powerwerx Question
I suggest taking the lid off of the power supply and inspecting the fan for dust. It can accumulate and affect the free rotation of the fan, generating noise. A vacuuming might be in order. 73, Kevin VE7ZD/KN7Q On June 10, 2022 1:18:51 a.m. PDT, "df...@darc.de" wrote: >Maybe it’s the cooling fan of the power supply. When more power is needed the >supply gets warmer and the fan spins faster - so you can hear it then. If it’s >too annoying, there are more quiet fans with which you could replace the >original fan. > >73 >Hans, DF3DD > > > > >> Am 10.06.2022 um 07:37 schrieb Jim Ruff via Elecraft >> : >> >> I have a KX3/KPA100/Powerwerx setup. When I run the rig with the amp on, my >> Powerwerx 30 amp power supply makes a whirling sound. If I run the rig >> without the amp, the power supply makes no noise. When I run may K3 it >> makes no noise. Is there a problem causing the noise?Thanks,Jim W7JHR >> >> >> >> Sent from Yahoo Mail. Get the app >> __ >> 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 df...@darc.de > > >__ >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 mcqui...@sfu.ca __ 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] KX3/KPA100/Powerwerx Question
Maybe it’s the cooling fan of the power supply. When more power is needed the supply gets warmer and the fan spins faster - so you can hear it then. If it’s too annoying, there are more quiet fans with which you could replace the original fan. 73 Hans, DF3DD > Am 10.06.2022 um 07:37 schrieb Jim Ruff via Elecraft > : > > I have a KX3/KPA100/Powerwerx setup. When I run the rig with the amp on, my > Powerwerx 30 amp power supply makes a whirling sound. If I run the rig > without the amp, the power supply makes no noise. When I run may K3 it makes > no noise. Is there a problem causing the noise?Thanks,Jim W7JHR > > > > Sent from Yahoo Mail. Get the app > __ > 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 df...@darc.de __ 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
