tman Wrote:I am aware of scanschannelsbda, and have run it already to see what I can see. It didn't detect anything on the COM7 mux frequency (652Mhz) for my transmitter (Hanningtion, UK).
If the EPG is showing the COM7 channels, that indicates that the downloaded list of MUXes has already been updated, so no problem there.
Is your HTPC fed from the same aerial system as your TV? If the HTPC is fed from a different aerial system, it may be receiving a weaker signal than the TV.
If the HTPC has a separate aerial, is it the correct aerial band for your location? If the COM7 MUX is at the extreme end of your aerial band (A, B, C, or D), it may be that you need a wide band aerial in order to receive it properly (band W).
If HTPC and TV are fed from the same aerial system, are they receiving equal signals? Example: aerial feeds a two-way splitter; one feed goes directly to main TV; other feed goes into another two-way splitter which feeds HTPC and a separate bedroom TV. Clearly HTPC would be receiving half the signal of the main TV.
For some reason, tuners for HTPCs seem to have lower sensitivity than those for TVs, so that may explain the difference. Also, the new DVB-T2 MUXes are broadcast at a lower strength than the main MUXes, which may further make reception marginal.
If WMC sometimes shows "BBC4 HD" (albeit pixelated), and "ScanChannels" indicates no signal, it suggests that the signal strength is borderline, and "ScanChannels considers it too low to be receivable.
So I think that it is down to signal strength:
(1) Check aerial band is correct.
(2) Check aerial alignment.
(3) Check all leads and connections are in good condition.
(4) Use an aerial amplifier at an appropriate place (usually: as near the aerial as possible, although my amplifier is in the lounge near the HTPC and TV).
I have two TBS 6284 tuner cards and can receive all of the MUXes (from Rowridge).
-- from CyberSimian in the UK