Garmin GBR 21 User Manual download pdf (Page 21)

19

Reference

Physical

Size: 5.2”L x 3.6”W x 1.5”H

(132mm x 91mm x 38mm)

Weight: 6.8 ounces (0.193 kg)

Power

Voltage: 10 - 18 volts DC using supplied

power/data cable

Current Drain: 130 mA

Signal Processing

Frequency Range: 283.5 - 325.0 kHz

Minimum Signal: 10 µV

Acquisition Time: 15 seconds

Data Processing

Demodulation: MSK (Minimum Shift Keying)

MSK Bit Rates: 25, 50, 100, 200 bps

Interfaces

Input: RS-232 or NMEA 0183

4800 or 9600 baud

(jumper selectable)

Input Sentences: Binary (Magnavox),

$PSLIB (Starlink)

Output: RS-232

4800 or 9600 baud

(jumper selectable)

Output Sentence: RTCM SC-104

(6 of 8 bit format)

Antenna Coupler

Diameter: 1.6” (41mm) base, .6” (15mm) top

Height: 4.8” (122mm) without antenna

16.8” (427mm) with antenna

GBR 21

Specifications

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