JHS-77
| 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.
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.
| Specifications |
| 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 ±10x10-6 | ||
| 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) | ||