> I should add that I only care about the standard NMEA sentences, nothing fancy or two-way, just getting the acquired current location (GGA, GLL or RMC).
Then you don't need the bridge or SerialFix at all - NMEA is incoming
data only (except for some rare bidirectional NMEA as used with Magellan
receivers or waypoint upload). The RTS/CTS bug comes into play only when
sending data from the T3 to the receiver. Incoming NMEA works without