It may be the best TV service. But it can be a nightmare both in being RF sensitive, and in generating wideband trash. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie What's up with U-Verse? Con
David is correct. However, generally speaking, #31 is the mix of choice for HF problems. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie --Original Message-- From: David Cole Sent: Tuesday, June
Your question is far too non-specific to have merit. The generic answer to "what do you replace a noisy switer with" - is a linear supply. It's too heavy. It's too inefficient. It's too big. Well, th
There are a few applications where I have needed to use a SPS and worried about RFI. My solution has been to compare the powered and unpowered spectrum on a SA, looking for areas where the floor is r
There seems to be a polarity reversal diode in the radio. Tested that theory myself and it's fortunate there is apparently something in there to keep the accidental reversal from getting a guy in tr
In the process of overhauling the shack's wiring, I'm wanting to replace my existing ethernet switch with a box that is properly shielded - or at least has one with a low emission footprint. Here i'm
I don't need to guess the Ethernet spur frequencies - thanks to Murphy they seem to be on MY QRG automagically!!! :) 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com https://www.nk7z.net/rfi-sna
Wife wants a new washer - her spec includes a FRONT loading type My spec includes RFI-QUIET. Or a model that is known to be made quiet with the addition of some ferries. Appreciate any recommendatio
Comments if you have them from your own experience with this model. Thanks! 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com _______________________________________________ RFI mailing list RFI@c
I have had a LG WM3770HVA for a few months now and it's not making any noise that I've identified. I did however put about 6 turns of the power cord through a FT240-31 sized ferrite on install (stan
The layout of our house precludes using a traditional water softener system and for that reason I was looking at the descaler systems which seem to work by creating a magnetic field around the pipe a
Any experience with LED direct-replacements that are supposed to work with existing ballast/fixtures? I have a number of F28/T5-4' long fixtures that seem to eat the bulbs about as fast as I can get
A local uses the Jameco "regulated linear supply" which you can get off their web site. No problems that I have heard of. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com Ciao Sandro, i7ALE ....
I'm going to go see a neighbor today who always has a great looking display about this time each year. This go around, he's expanded to even more and better looking stuff. The problem is when it fir
Turns out this was not a Christmas light display, but apparently is a MOV on a pole in front of the guy's house. Diagnosis and tracking involved driving around looking at signal levels on a PL660 SWL
The power company guys were good to their word and contacted me a couple of days after Christmas. They came over and I hooked up their receiver/SA (radar engineers 242) to my antenna and they got a
I've had a number of different elevated radial configurations with a 40m 4SQ and from my personal experience the addition of ferrites to the individual feeds did improve the directional characteristi
The 660 has one advantage over a lot of other radios and that's the ability to run on the aircraft 135? Mhz band. If your RFI involves power lines, then being able to go up to VHF does a lot in help
The Lutron dimmers I have in the house here are quiet. Recommended. For the bulbs, I've found all of the FEIT brand bulbs sold by Costco to be quiet also. 73/jeff/ac0c alpha-charlie-zero-charlie www.
I should comment on the FEIT bulb and quality that. I tested the emissions with an SA coupled to the line cord and this was done at FULL VOLTAGE. Meaning the bulbs when powered with 120V AC were qu