B - 4 Radio specifications June 2003 IPN: M5000-00-105
Table B-3: Transmitter performance
Parameter Performance
Duty cycle 20%
(1 minute Tx, 4 minutes Rx at
maximum temperature and
voltage)
Group delay variation
bandwidth
±50
µs (at mod audio out-
put)
300-3000 Hz
Trunking data devia-
tion
(as per MPT1327)
narrowband
mediumband
wideband
1.5 kHz
2.4 kHz
3 kHz
Audio response
below limiting
in limiting
above 3 kHz
input for 60%
deviation
distortion
6 dB/oct +1, -3 dB
(relative to 1 kHz)
300-3000 Hz
0 dB +0, -4 dB
(relative to maximum sys-
tem deviation)
450-2550 Hz
-35 dB/oct min
5 mV
rms
<5% at 1 kHz
Ruggedness 2 minutes (into infinite
VSWR)
Stability 5:1 VSWR (all phase angles,
<-60 dBc)
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