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KHF 1050 SYSTEM INSTALLATION MANUAL
Page 34
Revison 2 23-10-09 Apr/2006
AGC
SSB and AME: 10 dB (max) change in audio level with RF level
changes between 10 uV and 100,000 uV
Distortion
SSB: 5% (max)
Receiver Intermodulation: 25 dB (min) below the desired tone
AME < 5% (typical); 12% (max) with 85% modulation
Audio Output Level
Receiver Audio/Sidetone: 7.75 Vrms +/- 2 dB (100 mW across 600 ohms)
adjustable down to 0.24 Vrms
SELCAL Audio: 0.775 Vrms +/- 2 dB (0 dBm across 600 ohms)
adjustable from 0.24 Vrms to 2.45 Vrms
External Modem Audio: 0.775 VRMS +/- 2 dB (0 dBm across 600 ohms)
Adjustable from 0.24 Vrms to 2.45 Vrms
Audio Frequency Response
Receiver Audio/Sidetone: 6 dB (max) from 350 Hz to 2500 Hz
SELCAL: 3 dB (max) from 300 Hz to 1500 Hz
External Modem: 4 dB (max) from 300 Hz to 2500 Hz
Spurious Response: 60 dB (min)
Squelch: Syllabic, signal/noise and signal level squelches
available
EXCITER
Output Impedance: 50 ohms (nominal)
Power Output
with microphone input 0 dBm +/- 5 dBm
Audio Frequency Response
SSB Voice: +/- 6 dB (max) from 350 Hz to 2500 Hz
SSB Data:
(Note 3)
+/- 4 dB (max) from 300 Hz to 2500 Hz referenced
to 1 KHz
AM Voice: +/- 6 dB (max) from 350 Hz to 2500 Hz
CHARACTERISTIC DESCRIPTION
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