This is a pair of devices that can be worn and used to locate each other. Each will include a small 2 way radio, a directional finder and proximity finder. Each device will have a display with a circular compass indication the direction the other device is in, a color to indicate distance from each other, and a button in the center to activate an alert and 2 way audio
The devices will come with various clip attachment for wearing options. A strap for the wrist, a necklace, a clip to attach to clothes.
APRS GPS position encoder
Decodes any NMEA-0183 compatible serial GPS sending $GPRMC or $GPGGA sentences. Transmits position, altitude, speed, heading, and timestamp (hour/minute/seconds or day/hour/minute). Supports SmartBeaconing, which adjusts transmission rates to speed and turning. Can transmit position in MIC-E, NMEA, or APRS ASCII text format. Burst after voice / Send Position Now input. Handles position resolution down to 7 inches.
Byonics GPS5OEM GPS receiver module
Size is 32mm x 32mm x 9mm, 0.7 oz
Antenna to be concealed in bracelet or necklace
50 W 2.5 dB gain 144 / 440 MHZ frequency 9 cm length
12v power supply
Providing short 2 amp pulses For 8 to 10 watt output
Miniaturized 144/440 MHZ FM radio