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40 Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual
Channel Naming: Yes
Tri watch, favorite channel scan: Yes
All scan: Yes
User programmable MMSID: Yes (User MMSID and ATIS (721EU)
MMSID and NAME directory: Yes - 20 numbers & group
TRANSMITTER
Frequency: 156.025 - 157.425 MHz
Output power: 25 W / 1 W selectable
Transmitter protection: Open / short circuit of antenna
Max Freq deviation: +/- 5 kHz
Spurious & harmonics: better than @ 2.5 W
Modulation distortion: Less than 4% @ 1 kHz for a +/-3 kHz deviation
RECEIVER
Frequency: 156.025 - 163.275 MHz
12 dB SINAD sensitivity: 0.25 uV (distant) / 2.5 uV (local)
Adjacent CH selectivity: more than 70 db
Spurious response: more than 70 db
Intermodulation rejection ratio: more than 68 db
Residual Noise level: more than -40 db unsquelched
Audio output power: 2 W (with 8 ohm at 10% distortion)
4 W with 4 ohm external speaker
Compass safe distance: 1.5' (0.5 m)
Specifi cations are subject to change without notice.