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KHF 1050 SYSTEM INSTALLATION MANUAL
Page 35
Revison 2 23-10-09 Apr/2006
AM Data:
(Note 3)
+/- 4 dB (max) from 300 Hz to 2500 Hz
Sidetone
Level: 7.75 VRMS across 600 ohms (adjustable)
Frequency Response: +/- 10 dB (max) from 350 Hz to 2500 Hz
Carrier Level
SSB: 50 dB (min) below exciter output
AM Equivalent: 0 dB to 3 dB greater than single-tone sideband
Reduced Carrier (A3A): 16 dB +/- 2 dB below peak power
Frequency Stability: +/- 20 Hz (max)
Noise: 5% (max)
Microphone Bias: 8.4 +/- 1 VDC with a 600 ohm DC load
Microphone Input
Level:
0.2 to 2.0 Vrms (nominal)
Microphone Input
Impedance: 150 ohms (nominal)
TSO: Compliant to DO-163,DO-178B Level C,
E/TSO-C31d and E/TSO-C32d.
Also see “ENVIRONMENTAL QUALIFICATION
APPENDIX” .
Notes:
1) Unless otherwise noted, receiver input levels are specified in “hard” uV, which
includes a 6 dB attenuator between the signal generator and the receiver. As such, the
voltage at the receiver terminals is one half the "hard" microvolts read on the signal
generator.
2) Internally generated receiver spurious responses may degrade sensitivity below
those specified on a limited number of frequencies. A sensitivity of less than 6 dB
signal/noise for a 2 uV SSB input signal may be noted on some channels outside the
frequency limits of the aeronautical mobile band (25 MHz Limit) and maritime mobile
bands. Equivalent degradation may be noted in the AM mode. Contact Honeywell
Product Support (913-712-0600) regarding specific frequencies of interest.
3) The KHF 1050 system is FCC certified under Parts 87 and 90 for J2D, J3D, H2D
and H3 modes of data operation; and under Parts 80, 87, and 90 for J3E, H3E and
R3E modes of voice operation.
CHARACTERISTIC DESCRIPTION
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