Hal Communications ST-6000, Инструкция по эксплуатации

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2-2
Tone amplitude: Adjustable from -40 dBm to 0 dBm (approximately 10 mV to
1.0 V)
Amplitude variation: Less than ±0.5 dB at 0 dBm output
Output impedance: 500 Ohms, balanced to ground
Distortion: All harmonics below the 9
th
are attenuated greater than
40 dB (Less than 1.0 % total harmonic distortion).
Control Section:
Autostart response time: Switch selectable: Slow = 3.5 sec.
Fast = 1.5 sec.
Motor control delay time: 20 seconds nominal
Antispace time: Space condition greater than 250 ms
KOS delay: Turn-on: Space condition longer than 5 ms or upon key
down of CW-ID key
Turn-off: Space condition longer than 500 ms or Mark
condition longer than 1 to 10 sec. (adjustable)
or 1 sec. after CW-ID key opening
KOS NPN switch transistor: Off: +25 VDC maximum
On: 500 mA maximum
Tuning Indicator: X - Y, 1" diameter oscilloscope display; rear panel connections
for additional oscilloscope.
Automatic Threshold Control: Performs DC level restoration to provide correction for bias
(ATC) distortion in received signals; can be disabled with front panel
switch.
Decision Threshold Hysteresis: Provides switching hysteresis to provide correction of distor-
tion caused by multipath propagation effects; can be disabled
with front panel switch.
Demodulator Outputs:
Current Loop: Two independent 250 Volt, 100 mA NPN switching transistors
that may be connected to the internal 175 Volt, 50 mA loop
power supply or to external supplies.
EIS - RS-232C compatible: Mark = –12 VDC
Space = +12 VDC
MIL-STD-188C Compatible: Mark = +6 VDC
Space = –6 VDC
CMOS compatible:
(4000 series, +12 supply): Pre-autostart data: Mark = 0 to +3.6 VDC
Space = +8.4 to +12.0 VDC
Post-autostart data: Mark = 0 to +3,6 VDC
Space = +8.4 to +12.0 VDC