2.3 Receiver specificaƟons
2.3 Receiver specificaons
Table 12: Receiver specificaons
Parameter Specificaons
AM 25 kHz AM 8.33 kHz
Sensivity, AM@1μV/30% pd > 12 dB SINAD (CCITT)
Harmonic distoron <2%@90%AM(line output), Typically < 1 %
Signal/Noise > 55 dB @ +10 dBm input, 90 % modulaon
Effecve bandwidth ± 10 kHz ± 3.5 kHz
Adjacent channel rejecon
(Adjacent channel selecvity)
Typical figures
>80dB >70dB
In-band spurious rejecon >90dB
Intermodulaon aenuaon ≥ 85 dB
Image frequency rejecon > 110 dB
IF frequency rejecon > 110 dB
Blocking/desensizaon ≥ 100 dB @ 1 MHz offset, > 110 dB out-of-band signals
Squelch system Combinaon of RF level and Carrier/Noise (digital coherent
squelch)
Squelch RF level -5 to +42 dBμV (-112 to -65 dBm)
Squelch Signal/Noise 5 to 20 dB S/N @ 30 % modulaon
Squelch hysteresis Typical 2-4dB
Squelch mute level ≥ 70 dB
Cross modulaon rejecon > 100 dB @ 1 MHz frequency offset
Dynamic range > 125 dB (-110 to +15 dBm input signal)
Audio AGC (AAGC) 30 % to 90 %, < 0.1 dB variaon in output audio signal
AGC range -107 to +15 dBm
AGC aack me <40ms
AGC decay me <50ms
Internal speaker amplifier 5W@8Ω
Headset 8to32Ω, > 100 mW
External speaker amplifier 5W@8Ω
Monitor output 600 Ω, -46 to 0 dBm @ 90 % modulaon, single ended
Permissible RF input level 5 V EMF
18 jotron.com Doc. No.: 103614 TR-910 Operator Rev. AB
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