FRONT PANEL CONTROLS and INDICATORS
F1
DUC864
PWR/
ERROR
F2
2 5
IF INPUT
Frequency: 44 MHz.
Input Level: +30 dBmV, ±2 dB.
Input Impedance: 75 Ohms, return loss >20 dB.
OUTPUT
Frequency Range: 54 to 864 MHz;
CATV channels 02 thro ugh 135,
Broadcast TV channels 02 through 69.
Output level: +45 dBmV minimum, 15 dB adjustment range.
CAT V
+100
BC
TV
F3
CAT V
Broadband Noise: -73 dBc (6 MHz bandwidth) @ +45 dBmV output level.
In Channel C/N: -63 dB (6 MHz bandwidth) @ +45 dBmV output level.
F1 - POWER/ERROR Indicator
GAI N
F4
For example: For example:
Spurio us Outputs (5 MHz to 900 MHz): -60 dBc @ +45 dBmV output level.
Output Impedance: 75 Ohms, return loss >10 dB typical.
Amplitude Flatness Over
6 MHz Channel: ±0.4 dB maximum.
SSB Phase Noise: -95 dBc @ 10 kHz offset, -70 dBc @ 1 kHz offset.
Frequency Stability: ±5 ppm.
MER: 30 dB minimum (unequalized),
38 dB minimum (with blind equalizer).
Lights when the unit is connected to the
required source of DC power via the rear panel
DC INPUT connector. A flashing condition
indicates an invalid channel setting or other
conditions that would cause the unit to operate
on an invalid channel. The RF output is
switched off for flashing (ERROR) conditions.
Setting for CATV Setting for CATV
channel "125"- channel "25"-
2 5 2 5
GENERAL +12 V ±5% at 300 mA.
DC Power Input: +5 V ±5% at 350.
Operation Temperature: 0
0
C to +50
0
C, ambient.
Size: 1” W x 3.5” H x 9.25" D
Weight: 14.5 oz.
F2 - Channel Number Switch
CATV BC
+100 TV
CATV BC
+100 TV
Sets the desired operating channel for standard
CATV or Broadcast channel plans. See also
Item F3 which sets the type of channel (CATV
or Broadcast TV) and sets the leading “1” for
CATV channels 100 through 135.
F3 - Channel Mode Switch
Sets the type of channel, CATV or Broadcast.
The CATV +100 mode sets a leading “1” for
CATV channels 100 through 135.
CATV CATV
F4 - GAIN Control
This control sets the RF o utput level. The full
clockwise setting is a minimum output of
+45 dBmV.
Specifications subject to change without notice or obligation.
(8 Seiten)
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