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linds1234

Bizarre Problem- with a solution.

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Hi All,

3 weeks ago my reception for all of the Channel 7 range (Physical ch6) and most of Channel 9 went from 10/10 (Signal Strength and Quality) to 0/10 Quality (Ch7) and 4/10 Quality (Ch9). Whilst the signal strength remained at 10/10.

Steps I took to fix it:

- Replaced the masthead amp

- Cleaned all the contact points of the existing antenna

- Tried an LTE filter (which was a reach)

- Tried a new antenna with a different radiating pattern.

- Raised the antenna 1.5M

- Pointed it to an alternative broadcast tower

Came to the conclusion that I had a multi-path propagation issue. So the next step was to play around with antenna placement for a better spot.

But before I do that, I thought I'd turn off the Server PC, with this suspicion that it *might* have a faulty PSU. Sure enough, PC off = perfect reception on all channels. Then it dawned on me, 3 weeks ago I installed 2 new case fans in there: https://www.amazon.com/Antec-Tricool-Speed-120mm-Case/dp/B00314W992

Turns out one of them was faulty, causing EM interference through the mains.

A-single-faulty-case-fan.

Will never get that diagnostic time back! Thought I'd share it in the hope that it helps some other poor soul in a similar situation.

Cheers,

Lindsay

 

 

 

 

 

 

 

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Nice one and good troubleshooting steps.  Yes interference can be a very annoying issue.

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