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39Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual
Northstar Explorer 721US and 721EU
GENERAL
Power Supply: 13.6 V DC.
Current drain: Transmit 6 A at 25 W Tx / 1.5 A at 1 W Tx
Current drain: Receive Less than 250 mA in standby
Baro sampling (radio off ): Less than 3 mA, 85 mA in active standby
Useable channels: International, USA, Canada, Weather (country specifi c)
Mode: 16K0G3E (FM) / 16K0G2B (DSC)
Handset Works only with optional Explorer 701US or optional Explorer 701EU
PHYSICAL
LCD display (viewing): 40 (H) x 48 (W) mm
FSTN 4 x 12 character
Contrast control: Yes
Backlight control: Yes
Antenna connector: SO-239 (50 ohm)
Temperature Range: -15ºC to +50ºC
Waterproof: JIS-7
Dimensions: 161 (W) x 75 (H) x 147 (D) mm - without bracket
Weight: 3.0 lbs (1.36 kg) without microphone
Frequency stability: +/- 10ppm
Frequency control: PLL
GPS/NMEA input: Yes
Comm. port: 4800 baud NMEA, 38400 baud NAVBUS
DSC: Yes
Rotary channel selector: Yes
FEATURES
Flush mounting kit: Yes
Dust cover: Yes
Local/Distant control: Yes
Position polling: Yes
Track Your Buddy: Yes
Group Call: Yes
Call logs: Yes - 20 individual and 10 distress
DSC USCG SC101: 721US
DSC Recreational Class S: Canada
DSC Class D: 721EU and Canada Commercial
Barometer, Temperature
and Happy Fish: Yes
Appendix A - Technical Specifications