JHS-770S / 780D

JRC JHS 770 jrc logo



JHS-770S Class-A VHF Radiotelephone Semi-duplex
JHS-780D Class-A VHF Radiotelephone Full-duplex


brochure download



  • Fully Complies with GMDSS and International Standards
  • Flexible Installation
  • Built-in Class A DSC and CH70 Watch-keeping Receiver
  • Directly Calling Function by AIS Information
  • Built-in ATIS Function for European Inland Waterways
  • High Visibility by 3.8-inch High Brightness Display
  • Easy Operation with JOG Dial
  • Intercom and loudhailer function


Frequency range:

155.000 - 163.500MHz (Simplex)
156.000 - 157.450MHz (Duplex TX)
160.600 - 162.050MHz (Duplex RX)
156.525MHz (DSC CH70)

Output power:

25W / 1W

Type of modulation:

G3E / F3E (Radiotelephone)
G2B / F2B (DSC / ATIS)

Channel capacity:

ITU/ USA / Canada / Inland Water-way channels: 57 max
Private channels: 200max
Weather channels: 10
Memory channels: 10max
Frequency accuracy: +/- 1.5kHz
Antenna impedance: 50 oM unbalanced
DSC Received: 20 distress messages
Message LOG: 20TX + 20RX non-distress messages
Input voltage: 24VDC +30% / -10% (21.6VDC up to31.2VDC)
Power consumption: 8.3A max (at 24VDC input)


We use cookies on this websites. To use the website as intended please accept cookies.