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Re: [Discuss-gnuradio] DVB-T Reception Problem


From: Ron Economos
Subject: Re: [Discuss-gnuradio] DVB-T Reception Problem
Date: Thu, 17 Dec 2015 02:51:04 -0800
User-agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

Marcus,

That extremely low signal level is due to a Multiply Const block in the flow graph set to 0.00055242272. In the gr-dtv in-tree version, I've deleted that block.

Ron

On 12/17/2015 02:25 AM, Marcus Müller wrote:
Can you crank up the USRP gain further? An average PSD value of 10^-14 indicates there's still room for amplification, maybe. What Daughterboard are you using?
Just out of interest, because improvised a ~760MHz monopole antenna not so long ago: What kind of antenna are you using?

Best regards,
Marcus

On 17.12.2015 11:14, address@hidden wrote:
Hello all,
Here are the USRP setting for my flowgraph
USRP N210 Settings
Sampling Rate: 10M
Center Frequency :746MHz
Gain:19
The broadcast station has these parameters
Frequency:746MHz
Code rate : 2/3
Guard interval  : 1/4
Transmission mode : 8k
I tried the vector to stream trick but doesnt works. Also I tried using
the OFDM synchronization block from gr-isdbt it also doesnt works. The
signal capture according to me is very good I have its screenshot
attached. Any other tips to get the flowgraph running? Thanks all
Cheers
Ahsan



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