2.2 Receiver
Sensitivity: SINAD better than 12 dB for an input
signal of 2V pd (-101 dBm), 30%,
1kHz modulation, according to CCITT.
IF selectivity: -3 dB at +/- 7,5 kHz
-70dB at +/- 25 kHz
IF: 21.4 MHz and 455 kHz.
AGC: <3 dB audio variation for input signal
levels between -101 dBm and -
20dBm.
Intermodulation: Two interfering signals of equal
amplitude and at least 60dB more
than a desired signal giving 10dB
sinad and at a distance of 100kHz
from the operating frequency will not
generate 3rd order intermodulation
products, at the receiver output, larger
than the desired signal.
Radiated spurious components: <0.25nW.
Squelch: Noise squelch, center frequency
18.75kHz6.5 kHz.
Adjustable and hysteresis less than 3
dB. Opening/closing < 50ms.
S/N ratio: >35dB, 100V, 1kHz, 70%
modulation depth.
Audio response: -3 to +1 dB rel to 1 kHz, 300-3000
Hz. -10dB at 100 Hz and -35dB at
5kHz.
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