Hi,
Does the USGlobalSat BU353-S4 USB GPS Receiver work with Mikrotik routers?
I found my answer. I bought one of these gps receivers from http://thegpsstore.com and tried it. It works great.
/system gps set enabled=no
:delay 15;
/port set 0 baud-rate=4800 parity=odd
:delay 15;
/port set 0 baud-rate=4800 parity=odd
/system gps set enabled=yes port=usb set-system-time=no
Thanks,
donjames