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All posts by John Davenport

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

J
Single frequency interference
Monday 11 April 2011 6:37PM

Help!
Rdcently, for maybe 4-6 weeks, there is a problem with getting MUX1/PSB1 on CH22 during periods of high pressure in Lighwater GU18 5 - a fringe reception area for Crystal Palace - leading to severe pixellation and unwatchable ITV1/CH4/CH5/ITV2 etc, particulary from late afternoon into the evening.

Crystal palace is 26m/41km at 78 deg from here.

Plenty of signal and no problems with other MUXs from CH25 to 34

Is there another digital MUX in south east Engalnad or across the channel that is in 'line of site' after trophospheric reflection?

Having a wideband aerial plus amplifier aerial I may try and point at a more local transmitter - Guildford - does anyone know whether the Guildford transmitter has directional transmission? My reception not helped by being positioned in a dip with trees partially obscuring siganl paths.

Analaogue TV Ch23 - 27 all good with Unix 52 wideband aerial fitted a few years ago.

Can't put up with this for a year until DSO

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