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Byonics GPS Receivers 
Byonics GPS receivers are 5-volt, WAAS enabled, WGS84, output 4800 baud NMEA 0183 serial and employ the SiRFStarIII chipset tracking up to 20 satellites.
They are compatible with the TinyTrak3Plus,
TinyTrak4,
and most Micro-Trak transmitters, all of which provide the 5V to power the GPS directly.
They have a female DB-9 connector interface on a 6 foot cable, and the cases are weather resistant
so they are fine in the rain, snow and sun, and contain a magnet
to be easily mounted outside a vehicle.
However, they are sensitive enough to work well even indoors.
DB-9 pinout is 2:GPS data out (RS-232), 3:GPS data in (not normally used), 4:+5V power input, 5:ground. Current draw is about 65mA. NMEA sentences sent each second: $GPGSA, $GPRMC, $GPGGA, $GPGSV. Accuracy is approx. 5 meters with WAAS. Aquisition times are: Cold Start: 42 sec (avg), Warm Start: 38 sec (avg), Hot Start: 1 sec (min). Sensitivity is Aqcusition:-148dBm, Tracking:-159dBm. Note: These are 5 volt GPS receviers, and should never be connected directly to a 12V power supply. They can be connected directly to a TinyTrak3Plus (if J7 is set for 5V), a TinyTrak4 (if JP6 is set for 5V) or a Micro-Trak RTG, as these will regulate their supply voltage down to 5V to power a GPS. For other uses, consider the GPS 12V Power Adapters below. 
Byonics GPS2 - $69
Our most popular GPS receiver. Works at altitudes up to 18KM. 
Byonics GPS4 - $79
Our new GPS receiver intended for high altitude ballooning. Works at altitudes up to 84KM. Also available as just the GPS module below. 
Byonics GPS2OEM - $64
This is the receiver module found inside the GPS2 (no case or DB-9 cable), for use in embedded and ultra light weight applications. It weighes 0.7oz, comes with a 4" interface cable and outputs both TTL and RS-232. Wiring is yellow:TTL data from GPS, blue:TTL data to GPS, red:Vcc 3.3 to 5 volt DC, black:Ground, green:RS-232 data from GPS, white:RS-232 data to GPS. Size is 32mm x 32mm x 9mm, 0.7 oz.
Byonics GPS4OEM - $79
This is the receiver module found inside the GPS4 (no case or DB-9 cable), for use in high altitude balloon applications up to 84KM. It weighes 0.7oz, comes with a 3" interface cable and outputs both TTL and RS-232. Wiring is 1:black:ground, 2:red:3.3V to 5V DC power, 3:yellow:TTL data from GPS, 4:white:RS-232 data to GPS, 5:green:RS-232 data from GPS, 6:blue:TTL data to GPS. Size is 32mm x 32mm x 9mm, 0.7 oz. GPS Accessories GPS 12V Power Adapters These 4 power adapters contain a 5-volt regulator to allow the Byonics GPS receivers to be operated from a 12 volt supply. They are available with either a cigarette lighter plug or an Powerpole for the 12 volt interface. Output is either a 3/32" stereo plug, compatible with the Kenwood D710A, D700A, and D7A radios, or a DB-9 female, compatible with computer serial ports, scanners, TNCs, etc. 
GPAC - $25
Cigarette lighter plug and DB-9 output. 
GPAP - $25
Powerpole connector and DB-9 output. 
GPAKC - $25
Cigarette lighter plug and Kenwood D710A/D700A/D7A output. 
GPAKP - $25
Powerpole connector and Kenwood D710A/D700A/D7A output. GPS USB Adapter 
The GUA will connect a Byonics GPS receiver to a computer USB port. The GPS will appear to the computer as a standard COM port.
Unlike most USB to serial adapters, the GUA provides the 5V needed to power the GPS receiver, so no additional power adapter is needed.
This cable can also be used to interface and power a TinyTrak4 if you build a female DB-9 to female DB-9 adapter to pass pins 4 & 5,
and swap pins 2 & 3, and set TT4 JP6 for 5V, and do not connect the TT4 to other power.
The GUA uses the Prolific chipset, so your computer may already have the necessary drivers. If not, use this Windows 2000/XP Driver or this Windows Vista/7 Driver.
GUA - $20
TinyTrak to Deluo Adapter 
This adapter will allow the TinyTrak3Plus or TinyTrak4 to connect to and power the old Deluo 5-volt GPS recevier that had the 6 pin mini din interface.
TinyTrak to Deluo Adapter - $5
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