Frankly, I've never checked to see if the down-hole pump is an RFI source... Only use the well when I am outside for the most part... That's why I solicited Jim's opinion of the case.
I'll have to run a purposely test. I would think I could filter at/near where the AC lines go in/out of the hole (outside, and put in a metal enclosure?) And when I finally finish the pump control/distribution manifold in the back yard, the AC lines will be over-sized, twisted pair, and in grounded conduit. Will do whatever is required to keep things quiet. My quiet zone is slowly growing. :) 73, ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 7/19/2017 9:55 AM, Dave Cole wrote: > Clay, > Given that the pump is far, far underground, as is most of the wiring, > I would expect it to be a trivial matter to filter the AC line, which > should be the only thing radiating... Was that the case for you? > > 73s and thanks, > Dave > NK7Z > http://www.nk7z.net > > On 07/19/2017 07:52 AM, Clay Autery wrote: >> Hmmmm.... Jim... I have a variable speed down-hole pump on my water >> well... reckon that could cause RFI via the AC wiring? >> The down-hole pump is 220VDC on dedicated circuit, and shack is on a >> separate dedicated circuit from same service with separate sub-panel. >> >> ______________________ >> Clay Autery, KY5G >> MONTAC Enterprises >> (318) 518-1389 >> >> On 7/18/2017 10:40 PM, Jim Brown wrote: >>> On 7/18/2017 6:02 PM, Erik Basilier wrote: >>>> Need to replace my A/C, and worried about getting an RFI generator. >>>> >>>> A few years ago I saw some advice about taming a new unit, and maybe >>>> even >>>> getting instructions from the manufacturer. >>> >>> Dave Cole has given you excellent advice, and you should follow it >>> carefully. I'll add this additional caution. The "upgrade" in HVAC >>> systems (heating, ventilating, air conditioning) is a variable speed >>> motor. The controllers for these motors are notorious for bad RFI, so >>> by all means, do NOT buy that option. >>> >>> 73, Jim K9YC >> >> ______________________________________________________________ >> 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 d...@nk7z.net >> > ______________________________________________________________ > 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...@montac.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
