I completely agree with Terry but would like to share my personal experience and trade-in of my USB (hockey puck) GPS device.
I did have a USB GPS but a) didnít like the Prolific Serial
driver, almost always problems. And b) I installed a multiplexer. This because of the two baud rates on my NMEA 0183
bus. Low speed 4800 for GPS, AP etc and high speed 38400 for AIS
. All now standardized to one high speed, one port, to my computer 38400 with the multiplexer.
As stated before, I had a USB GPS and switched it for a serial
one so was able to directly connect to the multiplexer. The signal from a serial GPS device is NMEA 0183
Now, I donít need my laptop
switched on all the time for my GPS position, speed, ect info, itís on my NMEA
bus. I must agree, I have a laptop
with a serial port and donít know the future when I need to buy a new one that might not have a serial port anymore, but when times comeÖÖ