Jeff Hoke was in the process of retiring and I believe he is no longer there. He was training his replacement though, his name is Gregory Young.
[email protected] <mailto:[email protected]> Office: 713-945-6555 Mobil: 832-715-0549 If you can get him to come out he has all the same equipment and can run a spectrum analysis that could possibly help. Hope that helps. Chris Luppens From: BVARC <[email protected]> On Behalf Of Jeffrey Carson via BVARC Sent: Sunday, February 7, 2021 8:49 AM To: BRAZOS VALLEY AMATEUR RADIO CLUB <[email protected]> Cc: Jeffrey Carson <[email protected]>; Mark Brantana <[email protected]> Subject: Re: [BVARC] QRM in new radio setup Hello,i have had Jeff Hoke with Centerpoint come out and remediate some noise on a pole behind my house. Very thorough and professional. His contact information: Contact Jeff by email FIRST. Jeff Hoke [email protected] <mailto:[email protected]> Office: 713-945-6304 Mobile: 713-304-2728 On Saturday, February 6, 2021, 11:37:44 PM CST, Mark Brantana via BVARC <[email protected] <mailto:[email protected]> > wrote: Tonight I hooked up my little TH-F6A to the same antenna and got the same noise. I do have to test out my radio, but I am 85% convinced that it is QRM from a pole transformer located about 25 ft from the long end of my OFDP. This is a reasonably new transformer, since they replaced it about 5 years ago when the old one blew. Anyone have experience with getting the electric company to do a RFI survey? On the down side, I carried my AM radio to my back yard and heard no detectable interference. This is turning into a real mystery. Mark N5PRD On Feb 3, 2021, at 6:55 PM, Gus Bernard via BVARC <[email protected] <mailto:[email protected]> > 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 <[email protected] <mailto:[email protected]> > 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 [email protected] <mailto:[email protected]> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org ________________________________________________ Brazos Valley Amateur Radio Club BVARC mailing list [email protected] <mailto:[email protected]> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org ________________________________________________ Brazos Valley Amateur Radio Club BVARC mailing list [email protected] <mailto:[email protected]> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org Publicly available archives are available here: https://www.mail-archive.com/[email protected]/ <https://www.mail-archive.com/[email protected]/%20>
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