[Solved] WiModem on C64 Reloaded : Interference?
#21
(01-20-2018, 11:45 AM)admin Wrote: This is a problem with the MK2 board.  Real hardware doesn't have this issue.

but if i chamge the power supply ????? or  the 8701 if possible ???
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#22
The problem with the MK2 is the 8701 emulation that is built into the board itself.  There is apparently no way to fix this.   It appears to be too sensitive to voltage changes in the 5v rail.  The original MK1 board works fine *IF* you use a real 8701 instead of the plug-in board that emulates the 8701 (which is the same circuitry that is used in the MK2 board).
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#23
(01-20-2018, 05:36 PM)admin Wrote: The problem with the MK2 is the 8701 emulation that is built into the board itself.  There is apparently no way to fix this.   It appears to be too sensitive to voltage changes in the 5v rail.  The original MK1 board works fine *IF* you use a real 8701 instead of the plug-in board that emulates the 8701 (which is the same circuitry that is used in the MK2 board).

but in the mk2 it is not possible to change 8701 ?? or change the latter's programming ???? via update or other ??
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#24
Correct.  Jens would need to change the MK2 to be like real C64 hardware (which does not have a problem).
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#25
does anyone know a way to contact individual computers ??? to contact jens?
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#26
Through his website.
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#27
(01-21-2018, 02:16 PM)admin Wrote: Through his website.

Hello listen I also have another audio interference of the wi modem, practically it seems that from the speakers you hear a sting that looks very much the wi fi signal, you can delete it ??? maybe with an at command or not? because in one of the first firmware updates had been much reduced now instead it is back ........
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#28
There is nothing firmware can do to change this. This has been reported as a grounding issue with the cable you are using at the video connector. I have had people change the audio/video cable and the audio issue goes away.
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#29
(01-30-2018, 03:44 PM)admin Wrote: There is nothing firmware can do to change this.  This has been reported as a grounding issue with the cable you are using at the video connector.   I have had people change the audio/video cable and the audio issue goes away.

sorry the curiosity did not use a very shielded cable ??? by chance or has a particular grounding ???
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#30
I am not sure what you mean. People who reported hearing audio in their speakers changed their plug-in cable (the one that has video and audio RCA connectors) with a different one and the audio noise went away.
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