[aprssig] Byonics GPS2OEM eval

[Andrew Rich]

Summary 

SIRF III chipset 

is 0 to 2.88 volts on TTL Yellow wire
is +/- 6 volts on RS232 Green wire 
Vcc is + 5.0 V

Program on the RS232 lines - Green and White 
GGA:

Activate => $PSRF103,00,00,01,01*25

Deactivate =>$PSRF103,00,00,00,01*24

GLL:

Activate => $PSRF103,01,00,01,01*24

Deactivate => $PSRF103,01,00,00,01*25

GSA:

Activate => $PSRF103,02,00,01,01*27

Deactivate => $PSRF103,02,00,00,01*26

GSV:

Activate => $PSRF103,03,00,01,01*26

Deactivate => $PSRF103,03,00,00,01*27

RMC:

Activate => $PSRF103,04,00,01,01*21

Deactivate => $PSRF103,04,00,00,01*20

VTG:

Activate => $PSRF103,05,00,01,01*20

Deactivate => $PSRF103,05,00,00,01*21

Reset 

$PSRF101,0,0,0,000,0,0,12,8*1C

Speed

$PSRF,100,1,9600,8,1,0*0D

$PSRF,100,1,19200,8,1,0*38

$PSRF100,1,1,4800,8,1,0*0E

- Andrew -