8
AP Series
Instruction Manual
Option 4 - Sub-Band Output
Description
Option 4 extends the output frequency range of an AP processor to include sub-band channels T7 through T13.
This permits the unit to be used for sub-band via the return path in a two way system or as a LAN processor.
All external controls and connectors remain the same as a standard model. Video and Audio specifications for
channels T7 through T13 also conform to standard processor performance. RF specifications remain the same except
for the following:
Specifications (Typical)
RF Output Frequency Range: All Channels 7.0 - 550/750 MHz
SWITCH 2
8 4 2 1
Ones
Tens
8 4 2 1
7.0
13.0
19.0
25.0
31.0
37.0
43.0
Pix/MHz
T7
CH
T9
T10
T11
T8
T12
T13
INVOKED
REVOKED
Option 14 - ON CHANNELOCK
ON CHANNELOCK solves one of the commonly encountered problems of using an Agile Processor in the ON Channel
Mode. (e.g. channel 9 VHF input, channel 9 VHF output).
The problem being addressed manifests itself as picture “flutter” similar to the effects of signals reflected from aircraft
(although it is caused by a different phenomenon). The flutter most often occurs when the input signal is an off air
antenna or antenna/preamplifier combination.
Option 14 is intended to be invoked only when the input is channel 2 - 13 broadcast and the output channel is the same
as the input. Do not invoke Option 14 for conversions. Option 14 is invoked by Switch SW3, POSITION 1. Switch SW3,
POSITION 1 is found in the bank of front panel accessible input channel selector switches. Place Switch SW3, POSITION
1 down to invoke Option 14, up to disable Option 14. Also switch SW-1 POSITION 4 OFF when using Option 14.
As a reminder, turn “offset adjust” potentiometer fully clockwise when using this processor on the “ON Channel” mode
regardless of whether the processor has Option 14 or not.
When setting up a processor for “ON Channel” operation be certain that the switches for the output selector are as
required for “ON Channel” operation. Use the following procedure for best results when in the “ON Channel” mode and
when using Option 14.
1. Switch SW-1 POSITION 4 is switched OFF when using Option 14 and ON to adjust for frequency offsets.
2. Set Front Panel Offset Adjust Control fully clockwise.
3. Switch SW-3, POSITION 1 is down to invoke Option 14 ON. Move to the up position for Option 14 OFF.
CHANNEL
LEVEL
AURAL
1
2
4
0 - 9
00 - 12
8
4
3
2
1
1
2
4
8
OFF
ON
OFFSET
SUM UP SW
CATV
3
2
1
3
2
1
STD -
U
D
0
U U U
IRC - U D U
HRC -
BROADCAST -
U U D
U D D
Sw 1
Sw 3
Input Tuning
