Finally I have managed to get my S2-3600 DVB-S/S2
USB Dongle to work! I was missing some codecs. I installed
FedoraPlus and then used that to install the codecs.
I have yet to try it with an Amateur TV Signal but it seems to
perform well with a satellite signal. My Laptop works well with
SD video but struggles a bit with HD video.
When I get the time I will have a go with szap2 and see if I can get
it to operate a 2 MSymbols/s. The card is capable of doing it so it
should all work. When I tried telling my Windows Viewer to scan
a satellite with a 2M transponder it froze!
Showing posts with label DVB-S2. Show all posts
Showing posts with label DVB-S2. Show all posts
Sunday, 6 March 2011
Friday, 8 October 2010
DVB-S2
I have started to look at the DVB-S2 specification again.
After a bit of research, the new error correcting schemes
and format don't look too difficult to do. The draft spec
I have could do with some clarification but I think I have
figured most of it out now.
The main concern I have is that the majority of the receiver
chipsets available seem to have a minimum symbol rate of
10 M Symbols per sec. The only one that seems to be able to
operate at a lower rate is the 6899 set from ST.
10 M Symbols per sec looks like it will heavily load the Linux
box. So I am a bit concerned as to whether it will be possible.
I need to be able to operate at that rate so that I can verify
my implementation is correct using an off the shelf STB.
I understand that the idea is being mooted of transmitting
1 M Symbol per sec DVB-S2 from the ISS. This should not cause
a problem for my Linux / USRP2 system. However at those low
symbol rates it is probable that I will have to implement a
decoder as well. Most of the presentations I have seen on DATV
from the ISS are for DVB-S but I also hear rumours.
After a bit of research, the new error correcting schemes
and format don't look too difficult to do. The draft spec
I have could do with some clarification but I think I have
figured most of it out now.
The main concern I have is that the majority of the receiver
chipsets available seem to have a minimum symbol rate of
10 M Symbols per sec. The only one that seems to be able to
operate at a lower rate is the 6899 set from ST.
10 M Symbols per sec looks like it will heavily load the Linux
box. So I am a bit concerned as to whether it will be possible.
I need to be able to operate at that rate so that I can verify
my implementation is correct using an off the shelf STB.
I understand that the idea is being mooted of transmitting
1 M Symbol per sec DVB-S2 from the ISS. This should not cause
a problem for my Linux / USRP2 system. However at those low
symbol rates it is probable that I will have to implement a
decoder as well. Most of the presentations I have seen on DATV
from the ISS are for DVB-S but I also hear rumours.
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