Blocky, skipping recordings on some channels at some times of day - OK rest of time

[martinu]

Since I upgraded to 4.2.2 (180623) I've been getting blocky recordings which skip so badly that they often won't play - but only on one channel at one time of day. If I start a recording manually (or schedule a timed recording for later that day on the same channel) it always records perfectly, as do recordings on other channels at all times of day. As far as I know, my system (aerial feed, two DVB devices, PC, recording location) hasn't changed.

My first thought is that reception of this channel's multiplex is poor at certain times of day (and I've scheduled a few more overlapping recordings on channels on the same and on different multiplexes for the same time tomorrow to investigate further). However I wanted to check here whether anyone else has had problems that started when 4.2.2 (180623) was installed.

The details are: recording on LCN 20 (Drama) (mux COM4) at 0800-0900 from Bilsdale transmitter in UK.

One of my two DVB devices gives signal strength/quality stats, and when I've checked (about 1000 each day) these have matched the values from before I started to experience the fault, so at least for that adaptor, at that time, the multiplex is not weaker or poorer quality.

[Lao Pan]

My first thought is that reception of this channel's multiplex is poor at certain times of day (and I've scheduled a few more overlapping recordings on channels on the same and on different multiplexes for the same time tomorrow to investigate further).

The details are: recording on LCN 20 (Drama) (mux COM4) at 0800-0900 from Bilsdale transmitter in UK.

Maybe you need some bad weather https://www.a516digital.com/2018/06/the-...radio.html

Looks as though you are in a good spot for co-channel interference at the moment as specially as they're messing around with half of the transmitters in the UK at the present.

[martinu]

Duh. Of course. I should have remembered about co-channel interference during periods of high temp and pressure. I tend to forget that digital can be affected - although not as commonly as analogue was.

Strange that the problem is worse earlier in the day before the sun has started heating things up.

Now I wonder where else uses the same frequency for the affected multiplex - I wonder how far the interfering signals are coming. I'm curious...