QRM from security cameras

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Patrick Bouldin KM5L

Patrick Bouldin KM5L

Күн бұрын

Пікірлер: 11
@scratchmoney
@scratchmoney Жыл бұрын
My Reolink 16-ch PoE NVR does the exact same thing! Especially from ~12MHz-20MHz. No WiFi, all ethernet. Stock Ethernet cables (so far). I run a public kiwiSDR with 80m loop and had a really clean spectrum until I installed this RF fire hydrant. The more cams you add, the worse it gets, too. I tried choking the AC power supply cable - 4 turns on an FT240-31 (out of 43s), to no avail. I guess the next step will be trying to choke each Ethernet cable, but I have a sneaking suspicion that isn't gonna do Jack. So far, the only PoE things I've had that didn't crap all over HF were a couple of Cisco 3600 access points with PoE injectors.
@patrickbouldinkm5l143
@patrickbouldinkm5l143 Жыл бұрын
Interested if you solved it. Do you have to disable the wifi, I just assumed it was, but will check on that - my cams are wired.
@patrickbouldinkm5l143
@patrickbouldinkm5l143 Жыл бұрын
Well I checked, I can't see an option for wifi...
@scratchmoney
@scratchmoney Жыл бұрын
@@patrickbouldinkm5l143 yeah, it's all ethernet. Power over WiFi would be something spectacular though :)
@scratchmoney
@scratchmoney Жыл бұрын
@@patrickbouldinkm5l143 last night, I tried choking every ethernet cable with 5 turns on a 31 core (each) at once. No help. Pretty sure the cheap ethernet cables that come with it aren't shielded. That could be an issue, or it could just be crap power filtering in the cams themselves, which would make the most sense.
@ericmuller7755
@ericmuller7755 2 жыл бұрын
Interesting, I will look at my security camera components as well.. 73's
@ronbean8684
@ronbean8684 2 жыл бұрын
Very interesting. I assume they are WiFi? If so, what frequency do they operate on? Ron - KJ5XX
@patrickbouldinkm5l143
@patrickbouldinkm5l143 Жыл бұрын
Not sure but I just assumed the wifi was off since I have them cabled - but, I'll verify that. Hope all is well Ron.
@TheWolfReport
@TheWolfReport 2 жыл бұрын
Are those PoE powered IP cameras?
@patrickbouldinkm5l143
@patrickbouldinkm5l143 Жыл бұрын
yep, sure nuf
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