[RFI] 80 meter RF getting into Ubee fiber 6E gateway causing loss of Internet
David Decoons
rocketnj at gmail.com
Sun Dec 7 19:46:55 EST 2025
Hi All,
This had been working fine for well over a year and just started a week ago.
New issue popped up where RF out on 80 meters (about 1000 watts) into an "optimized" G5RV is causing the fiber gateway (Ubee WiFi 6E) to lose Internet connection and go into a reset condition after the RFis no longer present.
The antenna is about 60 feet from the fiber gateway. Ladder line goes into coax (no balun), then 50 feet of LMR400 Times Microwave coax to my 2x8 4O3A Antenna Genius.
Antenna Genius, Tuner Genius, Power Genius and Flex radio all in a server cabinet in the garage 1 floor below the fiber gateway. Everything in cabinet ground to a copper buss then #2 to ground rod about 12 feet away.
Network cable from Ubee fiber gateway to Asus mesh router is wrapped 6 times through a 2.4" mix 75 ring (F240-75) with no turns overlapping. Power cable to Ubee fiber gateway has 4 wraps through mix 75 wall wart ring.
I have had the Asus main mesh unit as the roiuter with the fiber gateway in bridge mode but have tried setting the Mesh system into access point mode and using the Ubee as the router, same results.
I do have a Balun Design 1115d 1:1 isolation choke I could put in the coax line either where it transitions to 450 Ohm ladder line or at the antenna switch but my feeling is this may be brute force RF getting into the Ubee gateway.
Has anyone experienced anything similar?
73
Dave De Coons WO2X
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