at least you found the issue and a way to solve it. 73...bruce
Sent from my iPhone On Feb 4, 2021, at 8:06 AM, Christopher Boone via BVARC <bvarc@bvarc.org> wrote: I found my noise problem in the florescent lights in my kitchen...turn them off and it goes away...probably the ballast... I'm in a rental so....guess I turn them off to operate lol Chris WB5ITT On Thu, Feb 4, 2021, 12:59 AM Michael Monsour via BVARC <bvarc@bvarc.org> wrote: > Divide and Conquer > Get a 12 volt battery to operate the radio > Then pull the main breaker in your house. > Either it gets better or it doesn't > Michael Monsour > > On Wed, Feb 3, 2021 at 6:56 PM Gus Bernard via BVARC <bvarc@bvarc.org> wrote: >> What Rick says. Then try taking it portable, away from the QTH and power >> lines. >> >> Gus, K5GMB >> >> On Sun, Jan 31, 2021 at 7:33 PM Mark Brantana via BVARC <bvarc@bvarc.org> >> wrote: >>> I am reaching out for ideas on a radio issue. I have installed an IC-745 >>> Icom with an MFJ-2010 offset fed dipole. The power supply is a 20A MegaWatt >>> switching power supply, which is located right next to the radio. The >>> antenna is under some high power-lines with the long leg 90 degrees to the >>> power-lines. I used my nanoVNA to study the band SWR response, and >>> everything looks reasonable, though some small adjustments may need to be >>> made. Nothing is grounded as yet. >>> >>> Here’s my problem. I am only attempting to receive at this time and I get >>> consistent QRM white noise across all bands to the point where I can barely >>> pick out some voices, etc. >>> >>> I am confident that the antenna is properly connected due to my antenna >>> study. >>> I don’t believe the power lines are an issue, since the problem would >>> likely be more isolated show up as birdies at certain frequencies. >>> The radio settings seem to all be correct according to the manual. >>> Lack of grounding, but again the white noise is generally consistant across >>> the spectrum. Still, this could be the problem. >>> I have turned off my computer, so there no QRM from its power supply. >>> It does not help to have the switching power supply right next to the >>> radio, but other users give good reports on this model and no QRM issues >>> are mentioned. >>> I tried the radio at different times of the day on 20-m voice band, with >>> the same noisy result. >>> It could be the net result of a large number of small device transformers, >>> but I doubt it. >>> I turned off the wifi, and still no change. >>> >>> Hmm… I am a little stumped. Any thoughts or ideas? Personal experiences? >>> >>> Mark >>> N5PRD >>> ________________________________________________ >>> Brazos Valley Amateur Radio Club >>> >>> BVARC mailing list >>> BVARC@bvarc.org >>> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org >> ________________________________________________ >> Brazos Valley Amateur Radio Club >> >> BVARC mailing list >> BVARC@bvarc.org >> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > BVARC@bvarc.org > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org ________________________________________________ Brazos Valley Amateur Radio Club BVARC mailing list BVARC@bvarc.org http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org Publicly available archives are available here: https://www.mail-archive.com/bvarc@bvarc.org/
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