How To Look For & Find 5G Interference in C Band

Two things that could cause a 5G C band bandpass filter to quit working are animals and frequency shift. Having a cover for the feedhorn is real important for the bandpass filter. With a lnb, you have wasps and other insect types that like to make nests inside the feedhorn tube. With a bandpass filter, you have a nice, long cavity that would make a cozy place for insects to stay. Anything inside your bandpass filter such as insects will block the signal.

The bandpass filter will have tuning slugs. The frequency of the filter could change if these slugs moved or became loose. We have dro type lnbs that also have a tuning slug for the l.o. frequency. LNB's hardly ever give problems with the l.o. tuning slug moving, but it has happened. It is doubtful the tuning slugs on these bandpass filters will move, but it is possible.

Shown below is a side cover of a filter removed and showing the tuning slugs. It looks like one side of Rick's Alga filter is filled with epoxy to keep the slugs from moving. IMO, that is a cheap way of doing things if that is the case.
IMG_2088.webp

https://www.satellites.co.uk/forums/threads/which-c-band-lnb-5g.182040/page-3
 
Some videos about solving 5G on FTA satellite do exist. These videos are mostly sales pitches from what I have seen, and do not give any solution except (1) Decide you have 5G C band interference, (2) Buy parts and hope they work. This is a recipe for wasting time and money.


 
Im currently looking at a property a stone's throw from an AT&T cell phone tower. I don't believe its transmitting band 77 yet or if it will however I will be setting up my current dish farm at the new location if all goes according to plan.
 
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