$PSRFTXT,POS: 6378137 0 0*2A
$PSRFTXT,Baud rate: 4800*65
Did you mean you can't get Firmware Version when you cold start your BU-353-S4 version message like above ??
because i don't understand what you mean about "you are not getting any $PSRFTXT messages at all"
Thank you and have a nice weekend
I don't get the firmware version or any other $PSRFTXT message. When I cold start it, there is one line of garbage I think and then there's regular NMEA 0183 messages.
do you know how to switch to SiRF binary???
No, I don't. Might switching to SIRF binary help me?