2.2
RECEIVER
Sensitivity
12dB sinad for less than 0.31uV pd. at the antenna socket, for 1 kHz at 60% maximum
deviation and 50% rated AF output power.
Adjacent Channel Selectivity
i).
DOC method
VHF
Greater than
4.1mV pd (73dB wrt 0.31uV).
UHF
Greater than
5 mV pd (74dB wrt 0.31uV).
Intermodulation Rejection Ratio
Three generator method, greater than 75dB at 100200kHz above and below carrier to avoid
selectivity limitations.
Spurious Response Rejection Ratio
i)
VHF
Greater than 85dB with a single signal.
ii)
UHF
Greater than 80dB with a single signal.
Blocking
Greater than 93dB ratio at 150kHz offset, 2-generator method.
Modulation Acceptance Bandwidth
i)
12.5 kHz channel spacing, greater than +/-4kHz.
ii)
20
kHz channel spacing, greater than +/-7.0kHz.
iii)
25/30kHz channel spacing, greater than +/-8.5kHz.
Spurious Radiation
9kHz to 1GHz less than 2 nW.
1GHz to 4GHz less than 20 nW.
AF Regulation
Less than 1dB variation in AF level for RF input level change from 0.3uV to 100mV PD.
Residual Hum and Noise
channel spacing
12.5kHz
25/30kHz
VHF
41dB
47dB
UHF
40dB
46dB
Reference 1 kHz at 60% deviation. 1 mV RF level. CCITT weighted. CTCSS not fitted.
Section 2 Page 3