Found Cause of Picture Breakup

[Lao Pan]

Information which may be of help to someone:

For months I have been suffering from Poor Signal and Picture Breakup which I had put down to an inferior loft aerial.
Yesterday I replaced the old C/D Group Aerial (should have been changed to a wideband about 10 years ago) with a shiny new Log Periodic. (still in the loft)
Picture became much better with almost no glitches - - except on one of my 2 USB Tuners (PCTV BVB-T2) where the picture kept breaking up every couple of minutes.
Tried changing aerial leads etc., but nothing mad any difference and was convinced the tuner was dying.
I was about to order a replacement when I suddenly had a light bulb moment and pulled out the wireless keyboard & mouse dongle (2.4GHz ?) that was in a slot between the TV Tuners on a powered hub.
Suddenly all the picture breakup disappeared.
I've now put the keyboard dongle on a different USB slot on the back of the 'puter on a short USB cable to take it a couple of feet away from the tuners and all appears to be good. I'm not sure if it was electrical / RF interference or conflicting on the USB bus.

[martint123]

Interesting - ISTR when I got my old PCTV USB T2 tuner it cam with a foot long USB extender lead with the recommendation to locate the tuner away from the PC.

[Lao Pan]

Interesting - ISTR when I got my old PCTV USB T2 tuner it cam with a foot long USB extender lead with the recommendation to locate the tuner away from the PC.

I have a 290e and a 292e both on a powered hub - the motherboard couldn't supply enough juice for the 290e originally. Strangly it was only the 290e that was getting interference.

That foot long usb lead was perfect to move the keyboard dongle away from the tuner (and I still have a spare lead )

Are recommendations something to be found in an instruction manual? - "All else fails" not reached on this occasion