Instruction Manual
Table Of Contents
Specifications
9-1
9. SPECIFICATIONS
9.1 JHS-770S/780D Marine VHF Radiotelephone
● General Specifications
Transmission frequency Simplex/ semi-duplex: 155.000 - 163.500MHz
Duplex (JHS-780D) : 156.025 - 157.425MHz
Reception frequency Simplex/ semi-duplex: 155.000 - 163.500MHz
Duplex
(JHS-780D) : 160.625 - 162.025MHz
Number of channels ITU/USA/Canada/IWW channels: Maximum 57 ch
Weather channels: 10ch
Private channels: Maximum 200ch
Memory channels: Maximum 10ch
Channel spacing 25kHz
Communication modes Simplex , semi-duplex and duplex (JHS-780D) / press talk
Type of emission Radiotelephone communications: F3E (G3E)
DSC/ATIS: F2B (G2B)
Antenna impedance 50 unbalanced
Transmission/reception switching
interval
300 ms or less
Channel switching interval 5 sec or less
Interface IEC61162-1 (GPS/AME/RMS)
IEC61162-2 (AIS)
600 balanced (VDR), 600 imbalanced (Ext SP)
Main controls DSC call transmission (sending and receiving), communication
channel settings, transmission power settings, squelch adjustment,
volume adjustment, screen adjustment
Power supply voltage 24VDC (21.6VDC - 31.2VDC)
Current consumption 25W transmission: Maximum 8.0A
Reception: Maximum 5.0A
Operating temperature range -15°C - +55°C (for full performance: 0°C - +40°C )
Storage temperature range -15°C - +55°C
Humidity resistance No abnormality after standing 4 hours in +40ºC, 93% RH
Vibration resistance (3 Axis) 5Hz – 12.5Hz: Full amplitude 3.2mm
12.5Hz – 25Hz: Full amplitude 0.8mm
25Hz – 50Hz: Full amplitude 0.2mm
No abnormality after vibration for 15 minutes in each axis
No abnormality after testing resonance points for 30 minutes
Continuous operation (Phone) No abnormality after operating continuously for 8 hours
Continuous operation (DSC, WKR) No abnormality after operating continuously for 24 hours
Protection rating IP22 equivalent (Controller panel)
Dimensions and mass Transceiver unit
240(W)x290(H)x128(D) [excluding projections]
Approximately
6.3
kg
(NTE-770S) / 6.9
kg
(NTE-780D)
Controller unit
230(W)x142(H)x89(D) [excluding projections],
Approximately 1.3
kg