Hi everyone, I was reading through a lot of K9YC's articles on grounding and RFI. It seems that he recommends daisy chaining ground together in the shack, and then running a single cable from the las
Hi Jim, I was hoping you might respond. I've read a lot of your slides and papers and have started sharing them out (along with W1HIS's article on chokes) when people ask about RFI. I saw that book,
Any idea how far apart is too far for the ground rods to be bonded? I've got a new (well, old, new to me) antenna going up. It's a cushcraft R7 vertical, and is about 125' straight line from my servi
Jim, Thanks for the reply. I bought a copy of the book on Kindle and have started reading it. The mixup on the coax braid was you talking of stripping it. I thought you meant strip it from pieces in
Hi Roger, What connectors do you use when running 8X as ground wire? Do you squeeze the stripped braid into a ring terminal? Sean WA1TE _______________________________________________ RFI mailing lis
The website states that they are part 15 certified, if I'm reading this right. Weird considering they hit amateur, land mobile and marine mobile frequencies. They are also over the part 15 power limi
I have to wonder if they got a part 90 certification for the "pro" version. That would match the frequencies commonly used by some of the Motorola and other business class radios that we regularly us
https://youtu.be/lcjhjna9jZE They will actually power wash high tension lines to clean the bird mess off. Has to be distilled water though, or it'll get more exciting than they really want. _________
Well past 60MHz would imply interference on the VHF low band commercial radios. The FCC tends to work harder when business and safety has interference, if we can show RFI here it might light a fire.
The amusing part is that the one easily ignored email has generated a half dozen other emails... _______________________________________________ RFI mailing list RFI@contesting.com http://lists.conte
WWVB maybe? -- Sent from my Motorola DynaTAC 8000X _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
I'd found this site a while ago: http://karinya.net/g3txq/chokes/ Seems to have a lot of good information. Sean WA1TE -- Sent from my Motorola DynaTAC 8000X __________________________________________
Is the information, particularly the chart with turns and cores for different frequencies, wrong or just incomplete? I haven't see any other resources that are a concise layout of such things. Sean W
That does raise a question. If the chassis of the computer is bonded to the electrical ground as well as the station ground bus, does that increase your chances of ground loops or potential increased
We have a lot of police and public safety on frequencies in the 150MHz range around here - if you can hear it up a little above 2m it may be worth mentioning that on any FCC filing. Interference with
I haven't tried it, but KA7OEI has a page about suppressing RFI in these http://ka7oei.blogspot.com/2015/02/a-quiet-5-volt-usb-car-power-supply.html?m=1 73, Sean WA1TE _______________________________