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JRC JHS-32B Instruction Manual Page 134

Marine vhf radiotelephone.
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G Transmitter Unit
Antenna output power
Oscillation method
Modulation method
Maximum frequency deviation
Occupied bandwidth
Microphone input impedance
Standard modulation input
Pre emphasis characteristics
Overall distortion
Signal-to-noise ratio
Spurious emission
DSC modulation rate
DSC modulation method
DSC modulation index
Mark signal frequency (Y)
Space signal frequency (B)
G Receiver Unit
Receiving system
1st IF
2nd IF
Local oscillation frequency
Local oscillation method
Sensitivity
Sensitivity (DSC)
Squelch sensitivity
Selectivity
Spurious response
Spurious response (DSC)
Blocking
Blocking (DSC)
Intermodulation
Intermodulation (DSC)
Overall distortion
Signal-to-noise ratio
Rated audio output
External speaker output level
De emphasis characteristics
Radiation
DSC message files
126
8.1 Main Unit (JHS-32B)
25W +20%, –50% 0.1 – 1W (reduced output)
Frequency synthesizer
Frequency modulation
Within ±5kHz
Within ±16kHz
600Ω balanced
–53dBm
6dB/oct +1dB, –3dB
10% or better
40dB or more
2.5µW or less
1200 baud ±30X10
-6
FSK
2 ±10%
1300Hz ±10Hz
2100Hz ±10Hz
Double superheterodyne
21.4MHz
455kHz
Reception frequency – 21.4MHz
Frequency synthesizer
2µV or better (20dB NQ)
Symbol error rate at 1µV is 1% or better.
1µV or better
6dB bandwidth: 12kHz or more
70dB selectivity: 25kHz or less
80dB or more (20dB NQ)
Symbol error rate is 1% or less at a wanted signal level of 3dBµ and
an unwanted signal level of 73dBµ.
90dBµ or more (±1–10MHz), 80dBµ or more (20dB NQ)
Symbol error rate is 1% or better at a wanted signal level of 3dBµ
and an unwanted signal level of 73dBµ.
70dBµ or more (20dB NQ)
Symbol error rate is 1% or better at wanted signal level of 3dBµ and
an unwanted signal level of 68dBµ.
10% or better
40dB or more
2W (4Ω)
0dBm (600Ω, unbalanced)
6dB/oct, +1dB, –3dB
4000µµW or less
For distress messages: 20
For other messages: 10

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