[linux-dvb] HDTV tuning.

Torgeir Veimo torgeir at pobox.com
Wed Sep 27 01:36:53 CEST 2006


On 26 Sep 2006, at 22:34, Mario Rossi wrote:

>> > T 554000000 8MHz 2/3 2/3  QAM64  8k 1/32 NONE
>
> I can only scan if I set QAM64 not QPSK (which worked 3/4 months ago
> when I tried the first time).
>
> Since then, I moved, before I was in Victoria and I used a T cable
> aerial (the one that is often sold for FM radios), while now I live in
> Aldgate East and I use the aerial of the building.

Not much luck here in N7 (Holloway road) using the signal from the  
buildings aerials.

[root at htpc src]# ./linuxtv-dvb-apps-1.1.1/util/scan/scan -5 hdtv3.conf
scanning hdtv3.conf
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 554000000 0 2 2 3 1 0 0
 >>> tune to:  
554000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMIS 
SION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
 >>> tune to:  
554000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMIS 
SION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE (tuning failed)
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
dumping lists (0 services)
Done.

I am suspecting this might be due to me using the wall socket signal  
though, since in order to receive dvb-t services, I have to manually  
put different frequency information into my vdr channel.conf file. Am  
assuming it has to do with missing repeater amplifiers for anything  
but the standard uk television channels.

What kind of antenna would be required to receive these signals?

-- 
Torgeir Veimo
torgeir at pobox.com






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