®
model 5445 quad digital modulator
pll frequency control
D
C
B
A
program
select
®
model 5445 quad digital modulator
pll frequency control
D
C
B
A
program
select
To program modulator
to channel
C
120
To program modulator
to channel
B
67
Press
button
times
program
6
Press
button
time
program
1
Press
button
more times
program
7
Press
button
more times
program
2
Press
button
more times
(press 10 to enter a ‘zero’)
program
10
Wait for
channel LED to light
(ready for next number.)
B
Wait for
channel LED to light
(ready for next number.)
C
Wait for
channel LED to light
(ready for next number.)
C
Programming Examples:
Press
button until
channel LED is on
select
B
Press
button until
channel LED is on
select
C
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
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If an error has occurred or an incorrect channel is
entered, the LED will flash quickly for a second and
return to the previous settings.
If two adjacent channels are selected, the unit will
accept the entry but will blink the LEDs of channels
that are too close. If this happens, re-program one
of the channels to move it away from the other.
®
model 5445 quad digital modulator
pll frequency control
D
C
B
A
program
select
To readback modulator
C
channel assignment
(example: C has been programmed to channel
)
108
Hold
button down
for 5 seconds, then release.
program
Led blinks time and pauses
1
Led blinks times
8
Led blinks
times, pauses
(“10” is read back as 0)
10
Press
button until
channel LED is on
select
C
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
select
program
A
B
C
D
Valid Channels:
Channel Spacing:
Error indication:
Channel number
readback:
14-64:
UHF channels
65-125: CATV channels
95-99:
not valid
Skip at least one number between channels.
Channels 14 and 16: OK.
Channels 14 and 15: Illegal.
A readback mode will display the current channel
assignments.
5
