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IIRC, slow-downs are caused because the serial buffer doesn't accept data fast enough when notify=1 and the car_rate is 4800bps.

With you so far...

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When using hijack to set "Serial Port = Applications", the buffer is no longer an issue


???

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I'm not sure what the exact underlying mechanism is, but IIRC, the player still believes that it's talking to hardware, when in fact it's effectively just pumping data into /dev/null.

I get that, but given your first statement, I need to set car_rate=115200. It seems to me that if a *real* serial device (GPS reciever) wants 4800 baud, it's going to get confused. Right?
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- Tony C
my empeg stuff