A Centena Group Company

VHF RADIOTELEPHONE JHS-770S(simplex/semi-duplex) / JHS-780D(simplex/duplex)

Categories: ,








VHF series
– performance features
Unique features
Available as semi-duplex or full-duplex, this class A VHF radiotelephone incorporates advanced modular design that allows for maximum installation flexibility.
Direct call by AISTM
When connecting your AIS to the new VHF, new possibilities become available. This innovative feature, unique to JRC, allows you with one push of the button, to quickly navigate through a list of targets in your surrounding area. Bearing, range and MMSI information of target vessels are sorted from the shortest range upwards. You can now easily select the vessel you wish to get in contact with, and send a DSC message immediately.
Intercom and loudhailer
The VHF radiotelephone has an intercom functionality for easy communication with multiple other VHF controllers onboard! 
Additionally, to always be in full control and on top of communication with deck or dock hands, a loudhailer function is built in. An optional external speaker with amplifier increases talk power, making your messaging loud and clear, thereby adding to the safety of the vessel.
Clear display
Improved visibility is realised by the integrated 3.8″ high brightness silver LCD screen with excellent sunlight viewability. 
The main data is displayed in large characters for easy reading.
Display Examples
Extendable up to 5 controllers
The VHF series configuration allows having up to 5 controllers covering various important sections onboard. Additionally, there is a range of possibilities for connecting extra handsets and printers. jhs770s-780d_handset
120 seconds digital recording
JRC has included a recording function for the last 120 seconds of open squelch (voice). 
In situations where loud engines or other background noises disrupt your reception, this characteristic feature enables you to immediately repeat any unclear messages.
VHF series
– developed for maximum ease of use
Wing controller
For wing and/or outside applications, JRC has developed an optional, simplified channel selector. This compact weatherproof unit allows basic operation, such as channel and power selection, and has a channel 16 preset. jhs770s-780d_channelselecter
Easy configuration
The JHS-770S/780D is developed upon maximum flexibility, having a separate transceiver and controller allowing flexible installation in confined spaces. Either panel, desktop or overhead mounting is possible with this size reduced VHF radiotelephone.
Easy operation
The combination of push buttons and JOG dial operation, together with JRC’s innovative software including easy menu structures ensures logical, accurate and convenient operation.
JRC has been providing sales and support of products since 1915! Today, JRC offers comprehensive support through its organisation, in partnership with a world-wide StarNetworkTM of over 270 fully qualified agents, giving support 24 hours a day, 7 days a week, and 365 days a year!






Model JHS-770S JHS-780D
GMDSS compliance
General Communication mode simplex/semi-duplex simplex/duplex
Frequency range 155.00 – 163.50MHz
TX 155.00 – 163.50MHz (simplex/semi-duplex), 156.00 – 157.45MHz (duplex)
RX 155.00 – 163.50MHz (simplex/semi-duplex), 160.60 – 162.05MHz (duplex)
Output power 25W/1W
Modulation type radiotelephone G3E/F3E, DSC/ATIS G2B/F2B
Channel spacing 25kHz
Frequency accuracy within ±10×10-6
Antenna impedance 50Ω unbalanced
DSC CH70 receiver built in
DSC CH70 frequency 156.525MHz
DSC received message LOG 20 distress messages
20(TX)+20(RX) non-distress messages
Channel capacity ITU/USA/Canada 57 channels max
Inland Waterway 57 channels max
Private 200 channels max (channel steps: 25kHz, 12.5kHz, 10kHz)
Weather 10 channels max
Memory 10 channels max
Inputs IEC-61162-1 GPS
IEC-61162-2 AIS
Outputs IEC-61162-1 VDR/S-VDR
Audio 600Ω 0dBm balanced (to VDR/S-VDR), unbalanced (to ext. loudspeaker)
RS232C for external printer NKG-91 and DPU-414
Environmental conditions Power voltage DC 24V +30% -10%
Current consumption DC 24V input, 8.3A max
Ambient condition temperature: -15°C +55°C (range for full performance 0°C +40°C)
Optional items Power supply unit NBD-865 (for AC operation)
Remote VHF controller NCM-1770(with handset, cradle and cable)
VHF channel selector NCM-2000
Controller connection box NQD-2770
Flush mounting kit MPBC42957(for NCM-1770)
Controller bracket MPBX44354
Handset NQW-261 (with cradle)
Handset connection box NQE-1847
Handset connection box (waterproof) NQE-1845(flush mount) / NQE-1846(wall mount)
Printer (table mount) DPU-414
Printer (flush mount) NKG-91
External speaker (wall mount) NVS-423
External speaker (flush mount) NVS-423A
Extension board CQD-7701 (required for multiple controllers)