Given that both the above units are designed to receive DTV I'm puzzled why they haven't been adapted to receive reduced bandwidth amateur signals. They both cover 6m-23cm and the RSP is an outstanding piece of kit. Commercial software drivers exist for both (they both work fine for Freeview).
I regret that writing or modifying the software is totally outside any of my capabilities, but given the efforts being poured into RPi software and complete standalone solutions it seems a bit like reinventing the wheel? No offence intended for all the sterling development work but 'Its in vain to do with more, that which can be done with less'. Am I missing something??
73
Gareth, G4XAT
RTL Dongles and SDRplay RSP
Forum rules
This forum is run by the BATC (British Amateur Television Club), it is service made freely available to all interested parties, please do not abuse this privilege.
Thank you
This forum is run by the BATC (British Amateur Television Club), it is service made freely available to all interested parties, please do not abuse this privilege.
Thank you
Re: RTL Dongles and SDRplay RSP
I did speak to the SDRPlay folks a while ago and they reckoned their TV software libraries could be
used to decode reduced bandwidth TV (at least for DVB-T).
The problem is that SDRPlay are not the people that do the TV software that is Mirics http://www.mirics.com/node/6 and the
conversation sort of petered out mainly as Mirics wouldn't talk to me once they figured out I was not going to sell millions of their chips.
I tried to get hold of one of their development kits but they don't seem to make those any longer.
I am too busy to follow it up with SDRPlay who are the people I was refereed back to by Mirics.
As for the RTL Dongle there is always the excellent leandvb
- Charles
used to decode reduced bandwidth TV (at least for DVB-T).
The problem is that SDRPlay are not the people that do the TV software that is Mirics http://www.mirics.com/node/6 and the
conversation sort of petered out mainly as Mirics wouldn't talk to me once they figured out I was not going to sell millions of their chips.
I tried to get hold of one of their development kits but they don't seem to make those any longer.
I am too busy to follow it up with SDRPlay who are the people I was refereed back to by Mirics.
As for the RTL Dongle there is always the excellent leandvb
- Charles
-
radiogareth
- Posts: 1371
- Joined: Wed Jan 06, 2016 9:46 am
Re: RTL Dongles and SDRplay RSP
OK, I sort of guessed that. But a market is still a market. SDRPlay have passed on my request but it may well end up in the same pile as yours 
I'll have a look at the lean software, thanks.
Gareth
I'll have a look at the lean software, thanks.
Gareth
Re: RTL Dongles and SDRplay RSP
I look at Myrics datasheet...It seems that :
- Support several TV modes (DVB-T and DVB-C) but not DVB-S
- No open drivers neither full datasheet with registers
- Even for SDR, Myrics provides only an API and not the source code : means that it is compiled for specific plateform and Linux Kernel
Conclusion : no way (and specially as Charles said, Myrics doesn't want to provide support or information).
Even with source code I doubt that decoding a reduced bandwidth in DVB-T(1MHZ) could be possible as it is not a standard norm.
For RB specially on DVB-S, try leandvb. I made a graphical interface for Raspberry : https://www.youtube.com/watch?v=-DVgLVcz9Vc
Next step could be to use a better SDR : Airpsy or SDRPLay as input for a better SNR.
Evariste
- Support several TV modes (DVB-T and DVB-C) but not DVB-S
- No open drivers neither full datasheet with registers
- Even for SDR, Myrics provides only an API and not the source code : means that it is compiled for specific plateform and Linux Kernel
Conclusion : no way (and specially as Charles said, Myrics doesn't want to provide support or information).
Even with source code I doubt that decoding a reduced bandwidth in DVB-T(1MHZ) could be possible as it is not a standard norm.
For RB specially on DVB-S, try leandvb. I made a graphical interface for Raspberry : https://www.youtube.com/watch?v=-DVgLVcz9Vc
Next step could be to use a better SDR : Airpsy or SDRPLay as input for a better SNR.
Evariste