There can be stability issues with remote sensing. Also RF susceptibility. Take care!
73, Scott K9MA ---------- Scott Ellington --- via iPad > On Dec 24, 2019, at 4:03 PM, Don Wilhelm <donw...@embarqmail.com> wrote: > > That would be a neat thing to do, but DO NOT do that on a power supply that > is connected to anything other than the rig you are sensing from. > > The voltage on other devices connected to the power supply will increase when > you transmit on the rig to which the sense wires are connected. > > Use a separate power supply for accessories. > > If you need to use the same supply, you can adjust the voltage upward - the > SS30 sold by Elecraft already has an output voltage of 14.1 volts. > Still use a separate power cable to the transceiver and another cable to any > distribution box that you use for accessories for best results (lowest > voltage drop when transmitting). > > 73, > Don W3FPR > >> On 12/24/2019 4:23 PM, K4HYJ via Elecraft wrote: >> I do use voltage sensing at the rear of the radio. Astron supplies can be >> modified easily to do this - they already have sense wires tied to the >> voltage output terminals. Basically you disconnect them there and run leads >> (keep em short) to the radio. On transmit, my K3s drops less than 1/10 a >> volt. >> There are a few write ups floating around on how to do this. I installed a >> switch (make before break type) on my RS-50M so I can return to "normal" >> sensing. ***WARNING*** If the external sense wires are not connected to >> anything the crowbar circuit will fire!!! > ______________________________________________________________ > 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 k...@sdellington.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
