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The M73’s ergonomic design fits easily in the user’s hand and is a rugged, durable radio. The large screen and high-intensity LCD offer bright and easy-to-read characters. Yacht customers benefit from the optional VOX headset and adapter option that allows someone handling dock lines to use both hands while docking the boat, simultaneously communicating with the captain.

Features:

Last Call Voice Recording
Active Noise Cancelling Technology
Bass Boost Function
700 mW Loud Audio
6 W RF Output Power
IPX8 Submersible Plus™ Waterproofing
Slim, Hourglass Body Wide Viewing Angle LCD
Additional features
- AquaQuake™ prevents audio degradation from a water-logged speaker
- Dual/Tri-Watch function for monitoring Channel 16 and/or call channel
- 4 level battery indicator
- Favorite channel and tag scan functions
- Rapid desktop charger, BC-210, and cigarette lighter cable, CP-25H, are supplied
- Optional waterproof speaker-microphones, HM-167 and HM-202
- Auto power save function
- Basic version (no voice recorder, no noise canceller and no bass boost function) available for limited markets.
- Supports 4-digit channels

General
Frequency range	Tx	156.025–157.425 MHz
Frequency range	Rx	156.050–163.275 MHz
Usable channel groups		INT, USA, CAN, WX channels
Type of emission		16K0G3E (FM)
Current drain	Tx 6 W output	1.5 A
Current drain	Rx Max. audio (Int SP/Ext SP)	450 mA/250 mA
Operating temp. range		–20°C to +60°C; –4°F to +140°F
Antenna impedance		50 Ω
Dimensions (W×H×D) (projections not included)		52.5×125×30 mm 2.0×4.9×1.2 in
Weight (approximate)		320 g; 11.3 oz (With BP-245H, FA-S64V, MB-103)

Transmitter
Output power (Hi/Mid/Low)	6 W/3 W/1 W
Max. frequency deviation	±5.0 kHz
Frequency stability	±10 ppm
Spurious emissions	–68 dBc typical
Adjacent channel power	70 dB
Audio harmonic distortion	10% (at 60% dev.)
Residual modulation	40 dB

Receiver
Sensitivity		0.22 µV typical (at 12dB SINAD)
Squelch sensitivity		0.35 µV typical (at threshold)
Adjacent channel selectivity		70 dB typical
Spurious response		70 dB typical
Intermodulation		70 dB typical
Hum and noise		40 dB
Audio output power (at 10% distortion)		700 mW typical (Internal SP) 350 mW typical (External SP)