Retune 21-3-18 (Rowridge) - lost Com 8 (Resolved)

prpr said:
If you're in a weaker signal area then that makes sense, but he's in sight of CP with a loft aerial! A cheap wideband will be perfectly adequate.
Click to expand...

'Line of sight' rather than actual sight. CP is 15 miles away. I can see AP but not CP!

Pointing it in the right direction seems to help.
 
peterworks said:
I purchased this one but unfortunately it could only find upto channel 31 so it is going back. It does state on the enclosed document 'channel 21-60' so perhaps it is faulty.
Will try and find another one...
Click to expand...
It probably just hasn't got the gain to get COM8 which it seems (looking at the coverage checker) is quite low power at present.

Edit: Looking at post #1 again your coverage checker result is quite different to mine - must be some different transmitter antenna directions.
This is mine, for Dibden Purlieu:
RowridgeMarch2018_SO45.PNG
 
Last edited:
I've now fitted my extra aerial and I'm pleased to say it has worked. I'm getting COM 8 at about 50% with 100% quality, which with the reduced coverage (see #43 above) is better than I expected.
Rather than clog the thread with details, and also A.T.V. have asked to hear how it went, I've built a web page with pictures and the measurements for all the channels - Adding group E to an A to get channels 55 &56
 
Discovered yesterday that we'd lost COM8 again - no signal and a couple of short and very 'disturbed' recordings.

Didn't take too long to find the reason ...

AerialsAfterStorm.jpg


Group E aerial deciding it wanted to be a satellite receiver I think.

This was a couple of days after a big thunderstorm hit the Southampton area - it wasn't especially windy but there was heavy rain which I think has hit the reflector/connection block end hardest. Another trip up the ladder today to fix it.
The nuts holding the U-section to the round cross-arm are those 'hex with wings' ones which I'd done up with my fingers, but I'm clearly not strong enough. They've now been spannered!
 
Following today's changes on Rowridge I have lost Com7 on Humax and all TV's

Fortunately there is nothing that I need on that mux.
 
When I first accessed the Humax this morning (which updated tunefix-update overnight) it showed both Com7 and Com8:
Mux Info 02-05-2018.jpg
Unfortunately after a retune I have lost Com7 and Com8 Humaxs but okay on TV...
 
MymsMan said:
Following today's changes on Rowridge I have lost Com7 on Humax and all TV's.
Click to expand...
Might be worth swapping the aerial flylead for another - I've had pre-made flyleads where a slighly dodgy termination combined with the length has killed a multiplex.

The latest one was only a couple of days back when I changed the flylead used to connect the aerial feed from one HDR to another and it killed Ch55/COM7 on both. Swapped it for one I'd made using proper CT100 coax correctly terminated and back it came.
 
peterworks said:
When I first accessed the Humax this morning...
Click to expand...
How'd you get that full display of mux info?

The display I get here has only one channel/mux with signal and quality >0 and that doesn't tie in with the mux box is currently tuned to, so I presume I'm missing something.
 
If you tune everything together then you get a snapshot of the data for all MUXs.. if you tune just a single MUX by hand then all of the other data gets flushed and you only see data for that one MUX.
 
af123 said:
If you tune everything together then you get a snapshot of the data for all MUXs.. if you tune just a single MUX by hand then all of the other data gets flushed and you only see data for that one MUX.
Click to expand...
Tunefix caches the data and restores if it it's 0. So the answer to this problem is to install tunefix, then do a full auto-retune, then reboot (to populate the cache). Then if the user does a manual retune for whatever reason at some later time, all other muxes. which will have had their figures set to 0 will get corrected on next boot.

Only if you have a HD/HDR Fox-T2 of course (seeing as this is not the CF part of the forum).
 
MymsMan said:
Following today's changes on Rowridge I have lost Com7 on Humax and all TV's
Click to expand...
Have you still got COM8? If you have, then something weird is happening. If not, then your aerial/downlead/rx infrastructure is in need of attention.
 
af123 said:
If you tune everything together then you get a snapshot of the data for all MUXs.. if you tune just a single MUX by hand then all of the other data gets flushed and you only see data for that one MUX.
Click to expand...
Ah, of course. Should have spotted that - I always do a manual tune.
 
Turned on the Humax this evening and a message appeared at the top of the screen saying something to the effect that the broadcaster had changed 'something' and it was going to do 'something' (as you can see I did not have much of a chance to read it...) Anyway I did a manual retune on 55 and 56 and all is back. I have not touched/changed anything - the weather here was atrocious this morning but brightened up this afternoon. Coincidence ?
prpr said:
then your aerial/downlead/rx infrastructure is in need of attention
Click to expand...
Could well be - will check it all again and make sure everything is secure (and thanks everthewatcher for your suggestion).
prpr said:
Why did you retune if you have tunefix-update installed?
Click to expand...
(Bad) habit...
 
You must log in or register to reply here.
Back
Top