Mail Archive Search: <+from:rfi@contesting.com>

Results:

References: [ +from:rfi@contesting.com: 790 ]

Total 790 documents matching your query.

381. Re: [RFI] Report on 12V 750W server supplies (score: 1): Author: Brian Moran via RFI <rfi@contesting.com>; Date: Fri, 5 Jun 2020 15:58:55 +0000 (UTC); I recently purchased the DPS-750RB A model, which is also shown as a HSTNS-PD18. Using the instructions on YouTube, I easily changed the voltage to 13.9v. I haven't had time to look for RFI using an; /archives//html/RFI/2020-06/msg00003.html (8,834 bytes)
382. Re: [RFI] Garage Door RFI (score: 1): Author: jimk8mr--- via RFI <rfi@contesting.com>; Date: Fri, 12 Jun 2020 13:46:40 +0000 (UTC); Interesting observation, though would not opening - vs. closing - the door have been unaffected since the light would have been off before opening, unless the door had recently been operated? Those b; /archives//html/RFI/2020-06/msg00009.html (8,565 bytes)
383. Re: [RFI] Garage Door RFI (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Fri, 12 Jun 2020 17:46:59 +0000; For long life bulbs in garage door openers, be sure to get vibration-resistant incandescent bulbs like for ceiling fans. 73, de ed K0iL _______________________________________________ RFI mailing lis; /archives//html/RFI/2020-06/msg00015.html (8,221 bytes)
384. Re: [RFI] Swimming Pool Pump RFI (score: 1): Author: Steve Dyer W1SRD via RFI <rfi@contesting.com>; Date: Tue, 30 Jun 2020 10:55:11 -0700; I have a Bryant/Carrier heat pump with a variable speed compressor. They sell a filter unit that installs on the outdoor unit and it works perfectly. I can't hear anything when it's running. Plus it; /archives//html/RFI/2020-06/msg00044.html (11,262 bytes)
385. [RFI] Trane heat pump RFI (score: 1): Author: Wes Stewart via RFI <rfi@contesting.com>; Date: Tue, 7 Jul 2020 17:57:48 +0000 (UTC); I haven't been too active lately, so I can't pinpoint when this started but I discovered it on Field Day when I was plagued with an intermittent noise that made me give up. My local power co-op has; /archives//html/RFI/2020-07/msg00001.html (9,115 bytes)
386. Re: [RFI] Trane heat pump RFI (Wes Stewart) (score: 1): Author: Wes Stewart via RFI <rfi@contesting.com>; Date: Wed, 8 Jul 2020 21:42:14 +0000 (UTC); First, I can't explain the question marks, I'm composing this in Yahoo Mail. I normally use Thunderbird for other email addresses but default to this one as a spam gathering address. I suppose I sh; /archives//html/RFI/2020-07/msg00005.html (9,858 bytes)
387. Re: [RFI] RFI Solved After 2 Years (score: 1): Author: Michael Aust via RFI <rfi@contesting.com>; Date: Fri, 10 Jul 2020 17:56:17 +0000 (UTC); CorCom filters take care of Sym (In-Phase) & ASym (Out of Phase) RF EMI Issues which can be betterthan ferrite type 31 cores on AC lines try to justattenuate Common Mode suppression !MikeWB6DJI RF EM; /archives//html/RFI/2020-07/msg00014.html (9,304 bytes)
388. Re: [RFI] Fios RFI Issues? (score: 1): Author: Anthony Kazmakites via RFI <rfi@contesting.com>; Date: Fri, 24 Jul 2020 17:38:50 -0400; Hi Tony The Fios equipment here has been very quite. Next week changing the router, dot and the set boxes to Fios One. Will see if it is as quite N2TK, Tony Sent from my iPhone ______________________; /archives//html/RFI/2020-07/msg00021.html (7,789 bytes)
389. Re: [RFI] Fios RFI Issues? (score: 1): Author: thoyer via RFI <rfi@contesting.com>; Date: Fri, 24 Jul 2020 20:42:02 -0400; I've had FIOS for many years with no issues from an RFI standpoint. I operate mostly HF CW 200 watts and maybe run the amp once in a while. Tom W3TA All: I may be switching from cable to Verizon Fios; /archives//html/RFI/2020-07/msg00023.html (7,535 bytes)
390. Re: [RFI] Depth of wires between ground rods? (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Mon, 10 Aug 2020 16:36:21 +0000; Depends on a lot of variables, such as site type, rod length, cable size, copper vs tinned copper, etc. Either 24 inch or 30 inch depth seem the two possibilities. I'd go 30" on tower rings and 24" a; /archives//html/RFI/2020-08/msg00006.html (9,858 bytes)
391. Re: [RFI] SolarEdge RFI Update Final - They Won (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Tue, 18 Aug 2020 20:40:30 +0000; Has the ARRL been involved at this point? If not, they should be. Then ARRL can trigger an FCC letter to the owner-operator of the device if they cannot get the customer and vendor to respond to ARRL; /archives//html/RFI/2020-08/msg00011.html (8,647 bytes)
392. Re: [RFI] Part 15 Rules Applicable to Solar Panel RFI (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Thu, 20 Aug 2020 01:28:15 +0000; Since solar panels are part of an electrical system, the same rules that apply the RFI from electrical power lines should also apply to electrical power generation. I've never heard of a utility succ; /archives//html/RFI/2020-08/msg00014.html (10,704 bytes)
393. Re: [RFI] LED RFI solved (score: 1): Author: Michael Aust via RFI <rfi@contesting.com>; Date: Sat, 22 Aug 2020 19:24:17 +0000 (UTC); Great video MikeWB6DJI Thanks for posting, Steve. In today's world, a large fraction of RF noise is electronic noise, NOT power line noise. My tutorial app note addresses this, how to tell the diffe; /archives//html/RFI/2020-08/msg00019.html (8,596 bytes)
394. Re: [RFI] LED RFI solved (score: 1): Author: Henk Remijn PA5KT via RFI <rfi@contesting.com>; Date: Mon, 24 Aug 2020 13:36:25 +0200; Also in EU we have a lot of lousy PS's, with and without CE or other markings. 73 Henk PA5KT Op 22-8-2020 om 22:42 schreef Bill Steffey NY9H: I looked at their website at many of their power supplies; /archives//html/RFI/2020-08/msg00026.html (10,661 bytes)
395. Re: [RFI] Covering Solar Panels To Assess RFI (score: 1): Author: Steve Dyer W1SRD via RFI <rfi@contesting.com>; Date: Tue, 25 Aug 2020 22:57:03 -0700; If this is a Solar Edge system, are they using "optimizers"? They are DC to DC, but still create switching noise. I'd look there first. Unless your neighbor switched to a known quiet inverter it was; /archives//html/RFI/2020-08/msg00033.html (9,320 bytes)
396. Re: [RFI] Covering Solar Panels To Assess RFI (score: 1): Author: Tony Brock-Fisher via RFI <rfi@contesting.com>; Date: Wed, 26 Aug 2020 06:53:32 -0400; Tony Was this experiment conducted with the per-panel optimizers connected to the panels? This is a critical question. It appears the conclusion of the experiment is that the panels themselves and by; /archives//html/RFI/2020-08/msg00034.html (10,997 bytes)
397. Re: [RFI] FM Wireless Mic on 144.160MHz (score: 1): Author: Michael Aust via RFI <rfi@contesting.com>; Date: Sat, 29 Aug 2020 02:34:15 +0000 (UTC); Don Here a wireless Mic transmitter 72MHz to 75MHz x2 2nd Harmonic in the 2meter Ham Band https://www.listentech.com/shop/product/portable-display-rf-transmitter-lt-700-072/ 73MikeWB6DJI Check 72.0; /archives//html/RFI/2020-08/msg00046.html (9,143 bytes)
398. Re: [RFI] Oven update #4 'final' response (score: 1): Author: jimk8mr--- via RFI <rfi@contesting.com>; Date: Sun, 30 Aug 2020 00:35:17 +0000 (UTC); Also, Consumer Reports? Jim K8MR For whatever reason, my original post was bounced by the lists filter. I changed the subject line and here we go again. See below. Is this something that Underwri; /archives//html/RFI/2020-08/msg00058.html (7,537 bytes)
399. Re: [RFI] Covering Solar Panels To Assess RFI (score: 1): Author: Tony Brock-Fisher via RFI <rfi@contesting.com>; Date: Sun, 30 Aug 2020 08:39:43 -0400; The obvious test would be to disconnect the optimizers from one or more panels, expose them to sunlight, but cover all the rest. This configuration should be quiet. -Tony It is highly unlikely the pa; /archives//html/RFI/2020-08/msg00061.html (10,620 bytes)
400. Re: [RFI] Potential noise from he solar panel itself (score: 1): Author: Steve Dyer W1SRD via RFI <rfi@contesting.com>; Date: Tue, 1 Sep 2020 12:27:03 -0700; Thanks for clarifying Dennis - and hopefully putting the panel as the source debate to rest. And to be very clear, per-panel PWM electronics are either "optimizer" type (DC to DC) or inverter type (D; /archives//html/RFI/2020-09/msg00001.html (8,504 bytes)

Current List: 381 - 400
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]