[mythtvnz] New card, new LNB

[Noel & Diane]

-----Original Message-----
From: Nick Wallingford <nickw at beekeeping.co.nz>
Reply-to: MythTV in NZ <mythtvnz at lists.linuxnut.co.nz>
To: MythTV in NZ <mythtvnz at lists.linuxnut.co.nz>
Subject: [mythtvnz] New card, new LNB
Date: Fri, 09 Dec 2011 08:45:07 +1300

I recently added a TeVii S464 DVB-S2 card to my system's backend, and 
replaced the original 'plain' LNB with a "Dual Twin Output KU" LNB.

Though I *did* have it all functioning for a time (which gives me 
confidence it can work) it was not consistent, and I'm re-configuring it 
all from the start again (for experience and hopefully better outcomes!)

The S464 doesn't seem to get as good a signal as the existing S420s, but 
I think it is functioning OK.

My question relates to setting up the LNB in MythTV, using the LNB 
Configuration Setup in mythtv-setup.

The LNB came with instructions including:
LNB Type - "Standard" if there is an lnb type
LNB LO (Low or 1) - 10750
LNB LO (High or 2) - 10750 or blank
22mhz - off
LNB Power - On

Am I right that in MythTV I effectively treat the LNB as if there were 
two of them?  That is, for the output that goes to existing S420 card, 
it is set up with Custom, Standard (Voltage) and set the LNB LOF (Low) 
to 10750, and then do pretty much the same for the connection to the 
S464?  (When choosing the LNB type Standard (Voltage) the LNB LOF High 
setting is greyed out).

Nick Wallingford
Tauranga

Hi Nick
You have made TWO changes.  Your LNB, and your card.  The new LNB may
need it's focal distance from the dish tweaked, as it may well be
different from the original LNB due to different internal construction
parameters.  If you have a "squealer" meter this will be handy to adjust
the LNB, working the meter as low down on it's scale as possible.  Once
that's all set, then play with the card!
Good luck
Noel Claydon
Kaikohe