M-818

The M-818 mobile radio is available for customers who operate or sail any vessel across the seas. It's a marine single-sideband (SSB) transceiver which includes a weather and emergency SOS channel.

 

 

 

 

 

Features:
    ● Call Channel
    ● Channel Group Selection
    ● Volume Loud Function
    ● Volume Mute Function
    ● Automatic Backlight
    ● Priority Scan
    ● TAG Channels
    ● Submersible IP67
    ● Dualwatch / Triwatch Functions
    ● Aquaquake Water Draining Functions
    ● Channel 16
    ● Weather Channel
    ● Geographical Area Call
    ● Squelch Control
    ● Distress Key
    ● Scan/Tag Key
    ● GPS (Optional)

SPECIFICATIONS
Antenna Impedance 50Ω
Channel Capacity 200
Frequency Stability ±10ppm
Operating Voltage 11.7V~15.8V
PLL Channel Spacing 12.5/20/25 KHz
Frequency TX/RX / 156.025-157.425MHz / 156.050-163.275MHz
TRANSMITTER
RF Power Output 25W/1W
Modulation Type 16KȻF3E
Maximum Deviation ±5.0KHz
Spurious Emission ≤60dB
Modulation Distortion ≤5%(300-3000Hz)
FM Noise ≤ - 42dB(W) / ≤-38dB(N)
RECEIVER
Adjacent Channel Selectivity ≥70dB
AF Output @ 4 Ohms ≥2W(8Ω,5% Distortion)
Audio Distortion 5%≤
Circuit Type Double-Conversion Superheterodyna
FM Ham And Noise ≤-45dB(W) / ≤-40dB(N)
IFs 49.950MHz & 450KHz
Image Rejection ≥70dB
Intermodulation ≥70dB
Modulation Type 16KOF3E / 11KOF3E
Operating Bandwidth ≤± 7KHz / ≤± 5KHz
Sensitivity(12dB SINAD) ≤0.2uV
Spurious Rejection ≥70dB
Squelch Selectivity ≤0.2uV
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