inputs.text: fast reliable accurate - debated bu353 iblue gm2 awhile units best market jmho city surrounded tall buildings bu353 cleaner signal surrounded trees mountains valley gm2 cleaner signal seen 24 hour plot stand still test receivers repeat rate set 1 baud rate set 9600 bu353 varied 00 feet 12 feet gm2 varied 00 feet 25 feet bu353 repeat rate 1 repeat per secondbaud rate set 9600 gm2 repeat rates 1 5 repeats per second baud rate set 4800 115200 gm2 new mtk2 chip bu353 still older proven work horse star iii water proof magnet mount roof vehicle cold start gm2 connect within seconds bu353 could 45 seconds no big deal takes 45 seconds get eyes focused not spend time city not need cleaner signal bu353 situation however spend time back roads decided go gm2 impressed signal point accuracy dont know ever need incase use dell 64 bit laptop windows 7 alk copilot live truck v8 laptop gps software