Thanks for the thermal images John. The under side ones would suggest that the green solder resist is acting as a thermal insulator and it would be better to leave a larger area as tinned copper.
Brian
Build your own USB tuner- will work with Minitioune
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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.
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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: Build your own USB tuner Sharp V Eardatek
Have only just assembled my first Usb tuner board recently.
I'm using an older Xp Sp3 32bit Laptop, and as you would expect ver 2 & 3 Minitioune software running Cpu is at 42% to 90%, Eardatek runs all ok.
On the 4 core 64 bit Win7 machine Cpu is at 21% to 30%, and again Eardatek runs all ok.
With the Sharp plugged in the Cpu overhead about the same on both machines but software only runs for a few minutes then freezes.
1v 3.3v and 5v are ok with both tuners, any ideas welcome.
Peter
I'm using an older Xp Sp3 32bit Laptop, and as you would expect ver 2 & 3 Minitioune software running Cpu is at 42% to 90%, Eardatek runs all ok.
On the 4 core 64 bit Win7 machine Cpu is at 21% to 30%, and again Eardatek runs all ok.
With the Sharp plugged in the Cpu overhead about the same on both machines but software only runs for a few minutes then freezes.
1v 3.3v and 5v are ok with both tuners, any ideas welcome.
Peter
Re: Build your own USB tuner- will work with Minitioune
Suddenly the Sharp is running fine?
See http://www.vivadatv.org/viewtopic.php?f ... 1402#p1402
Thanks for looking.
Peter
See http://www.vivadatv.org/viewtopic.php?f ... 1402#p1402
Thanks for looking.
Peter
Re: Build your own USB tuner- will work with Minitioune
The new Minitioune version 0.3b is available for download.
http://www.vivadatv.org/viewtopic.php?f=60&t=452
Main modifications since version 0.3a :
• Some situations where locking was difficult are now fixed.
• Changing aspect ratio from 4 :3 to 16 :9 now stretch the picture, so we can now correct bad situation like we have with HamTV that send 16 :9 pictures and indicate 4 :3 ratio.
• The frequency found is no more systematically copied in the frequency asked. There is now a separate button to do it. « copy »
Jean-Pierre F6DZP
http://www.vivadatv.org/viewtopic.php?f=60&t=452
Main modifications since version 0.3a :
• Some situations where locking was difficult are now fixed.
• Changing aspect ratio from 4 :3 to 16 :9 now stretch the picture, so we can now correct bad situation like we have with HamTV that send 16 :9 pictures and indicate 4 :3 ratio.
• The frequency found is no more systematically copied in the frequency asked. There is now a separate button to do it. « copy »
Jean-Pierre F6DZP