I'm having problems with the 2nd tuner. Tuner 1 is at 90% strength, 50% quality but Tuner 2 is at 50% for both.
This causes problems when recording two things at once and I often get picture breakup, especially on Channel 4 HD.

Looking at the signal strength on each channel, everything is well into the green for both bars until channel 4 hd (126) and many channels after that also have a weak signal on the 2nd bar.

I'm not sure what to do to improve the Tuner 2 strength.
Any ideas?

Done a bit more reading and I think I got some of the above wrong.

The 2 bars when pressing info are actually strength (top) and quality (bottom), not Tuner 1 and 2.

So channels before 126 are 90% strength, 100% quality on both Tuners.
Channel 126 and many higher channels are 85% strength, 50% quality.

Maybe the dish alignment is a bit out?

That's the most likely explanation. Download this and use Menu/System/Diagnostics to check quality for one channel from each transponder. Looking for a pattern, eg Problems with EB1 (Eurobird 1) or poor reception from either horizontal or vertical polarisation.

http://humaxgoodies.weebly.com/frees...ansponder.html

Thanks Graham, I'll give it a go

I've been through the list of channels and tried each unique combination of frequency/polarisation/bird and block.

Channels that were less than 50% quality were:
Movies4men+1
Smooth RadioUK
JML DIRECT
Ocean TV

with Movies4men+1 and Smooth RadioUK down at 20% with picture breakup.

Here is a summary of the results:
http://dl.dropbox.com/u/35707662/signalsummary.png

and the full results:
http://dl.dropbox.com/u/35707662/Cha...20Strength.pdf

Though I'm not sure when this means I need to do to improve the signal quality for Channel 4 HD (currently at 50% quality) ?

All high band EB1 transponders. Read this thread from post 19 onwards

http://forums.digitalspy.co.uk/showthread.php?t=1500635

Thanks Graham,
I've actually got a couple of 6db attenuators. Just tried but it didn't make any difference. Maybe I need a new lnb?

Try nudging the dish a very tiny bit further East with CH4 HD displayed in diagnostics. After each nudge give the tuner 30 seconds or so to respond to the change. Skew can be an issue with EB1 so a tiny twist of the lnb in it's housing may help.

I'll give that a go if it ever stops raining lol

What a nightmare. I spent an age moving the dish about. A couple of mm in any of the 3 axis could be the difference between a good signal and no signal at all!
Every time I got a good signal and tightened everything up again the signal disappeared. It must have moved a bit even the it didn't appear to.

Anyway, I've now got a decent signal.
The worst offender, channel 305, has gone from 85%/20% to 90%/60%. Channel 4 HD has gone from 85/50 to 90/70 so I'm confident this will be good enough to not break up when recording 2 channels and watching another.

Thanks for your help, Graham.

There's very few combinations of recording two that will let you view CH4 HD while recording two others.

This is due to the fact that it's one of the very few high band vertical TV channels. Basically one channel of the two you are recording must be one of these.

207 CNN
120 S4C
135 CBS Reality
805 Gems TV
806 TV Shop
817 Rocks & Co 1
818 Gems TV Extra
808 JML DIRECT
809 JML COOKSHOP
143 Men & Movies
401 Wedding TV Asia
816 QVC Beauty
650 Ocean TV
803 Pitch TV
804 Pitch World

Not a lot of choice. choice of the third channel does not depend on having a good signal.

Here's how to work out the possible combinations

http://myhumax.org/forum/topic/what-...-1-or-2-cables

The channel 4 HD picture seemed to break up more often when recording another channel, but it must just have been my imagination or coincidence.
Hopefully everything will be stable now