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Northstar
Explorer VHF Series: 721/725
Operation and Installation Manual
Northstar
Explorer VHF Series: 721/725
Operation and Installation Manual
Northstar Explorer 721/725US and 721/725EU
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 specific)
Mode:
16K0G3E (FM) / 16K0G2B (DSC)
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 +55ºC (for EU), -20ºC to +50ºC (for US)
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
GPS data sentences can
be received:
RMC, GGA, GLL, GNS.
NMEA output:
Yes
NMEA output sentences:
DSC ( for DSC call), DSE (for enhanced position).
Comm. port:
4800 baud NMEA, 38400 baud NAVBUS
DSC:
Yes
DSC mode: USCG SC101
721US/725US
DSC Class D
721EU/725EU and Canada (Commercial)
DSC Class S
Canada (Recreational)
FEATURES
Flush mounting kit:
Yes
Dust cover:
Yes
Rotary channel selector:
Yes
Local/Distant control:
Yes
Position polling:
Yes
Appendix A - Technical Specifications