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All posts by Ken

Below are all of Ken's postings, with the most recent are at the bottom of the page.


Dave Watson:
I had a similar problem and it turned out to be the aerial was oriented for Rowridge's Vertical Polarisation transmissions. Rowridge broadcast this to reduce co-channel interference from the continent.

The recent retune didn't just shift COM7 and COM8 out of Group A, which probably includes most aerials in its catchment since it has been a Group A transmitter for 50 odd years. It also stopped transmitting them in VP completely which is why, like you, I couldn't get anything of channel 55.

If so then you have a choice:
1: Change the aerial orientation from VP to HP and risk loss of signal quality on some Muxes in good weather or
2: Keep the VP alignment and watch BBCNews24 and the other COM7 & 8 channels on SD/fuzzyvision - less inclination to fork out for that new 4K HDR TV.

I took Option 1, but the Bank Holiday weather saw Mux D3+4 quality going all over the place despite a strong signal, which I assume to be the DTV effect of co-channel problems.

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