ii.
Caution Statements
ii.
Important Safety Instructions
iii.
Table of Contents / Specifications
iii.
General Description
2.
Front and Rear Panel Connections and Controls
3.
Installation - Applications
4.
Service / If You Need To Call For Help
5.
Warranty
SPECIFICATIONS
Bandwidth:
Number of Inputs:
Input Impedance:
Input Return Loss:
Input-Input Isolation:
Gain (any input to output):
Input Adjustable Attenuator:
Maximum Input Level:
54 - 860 MHz
16.
75 Ohms (type F connectors).
14 dB, typical.
30 dB minimum, 54 - 550 MHz.
25 dB minimum, 550 - 860 MHz.
3 dB typical, 0 dB minimum,
54 - 550 MHz.
2 dB typical, -1 dB minimum, 550 -
860 MHz.
Front panel setting, 15 dB
minimum range.
+60 dBmV (input attenuator set to
limit output level to rated
maximum), each input.
+48 dBmV each video carrier with
16 equal input NTSC signals.
-60 dBc, 16 channels at output
level of +48 dBmV per channel.
-60 dBc, 16 channels at output
level of +48 dBmV per channel.
14 dB, typical.
-20 dB ±2 dB.
14 VAC/700 mA supplied by
included AC adapter.
120 VAC/60 Hz.
0
0
C to 50
0
C, ambient.
19" W x 1.75" H x 4.0" D.
4 Lbs.
Maximum Output Level:
Composite Triple Beat:
Cross Modulation:
Output Return Loss:
Output Test Point:
Power Requirements:
AC Adapter Input:
Operating Temperature:
Size:
Weight:
Output
Level
AC1686
OUTPUT
Monitor Output
Power
Supply
INPUTS 1-16
+60 dBmV
maximum
AC1686 BLOCK DIAGRAM
The AC1686 Active Combiner permits combining the
outputs of up to 16 Audio/Video Modulators, Channel
Processors, etc. onto a single coax. The unit includes a
low distortion Ga As output amplifier to permit linear
signal output and very low input noise figure.
Attenuator
0-15dB
adjustable
-20 dB
Input
Amp
Low Noise
Ga As Amp
+20 dB
The AC1686 is housed in a standard 1-3/4" H x 19" W
rack space. A monitor output is provided at the front
panel of the combiner.
Table of Contents/Specifications/General Description iii
AC1686 ACTIVE COMBINER
POWER
OUTPUT TEST
20 dB
OUTPUT LEVEL
14 VAC
Power Input
Power Indicator
GENERAL DESCRIPTION
TABLE OF CONTENTS
