Harmonic PWRLink II 4800T Series, Product Manual

Page: 26 / 43

Transmitter Setup
4–8 Copyright © 2002 Harmonic Inc.
4.4.2 Fine Tuning the Transmitter
The setup instructions described in Section 4.4.1 will normally bring the
transmitter to optimal operating conditions. Fine tuning each transmitter to
the specific requirements or preference and adjustable performance (CNR,
CSO, CTB) is recommended.
If the factory-optimized RF level is not suitable for your particular
application, you can use the following procedure to adjust the internal
RF pad.
You can adjust the RF level while in either AGC or MGC mode. See the
appropriate section. Pad adjustment does not alter the current mode of
operation (AGC or MGC).
For details of the results of the RF adjustment see Section 4.2 Fine Tuning Each
Transmitter on page 4-3.
To adjust the RF level via the HLP 4200WD push buttons and display:
1. Press the
▲
or
▼
button until the display reads
MODULE SELECTION
, then
press
Enter.
2. Press
▲
or
▼
until the display indicates the transmitter module you wish
to adjust, then press
Enter.
3. Press
▲
or
▼
until the display reads
TRANSMITTER ADJUSTMENTS
, then
press
Enter.
4. Press
▲
or
▼
until the display reads
ADJUST RF LEVEL
, then press
Enter.
5. The current RF pad setting is displayed with the instruction
<SET+UP/DN>
TO CHANGE
.
6. Hold down the
Set
button and press
▲
or
▼
until the RF pad value you
want is displayed, then press
Enter
.
7. To exit RF adjustment, press
Enter
.
4.4.3 Resetting the Transmitter to Factory Defaults
The factory-optimized settings are described in Section 4.1 Factory-Optimized
Settings on page 4-2.
To return the transmitter to factory settings:
1. On the HLP 4200WD, press the
▲
or
▼
button until the display reads
MODULE SELECTION
, then press
Enter.
2. Press
▲
or
▼
until the display indicates the transmitter module you wish
to reset, then press
Enter.
3. Press
▲
or
▼
until the display reads
TRANSMITTER ADJUSTMENTS
, then
press
Enter.
4. Press
▲
or
▼
until the display reads
SWITCH TO FACTORY SETTINGS
,
then
press
Enter.
5. A message appears, telling you that all settings will be changed. Press
Enter.
6. A message appears,
<ESC> TO ABORT OR <SET+UP/DN> TO SWITCH.
Hold down the
Set
button and press
▲
or
▼
, then press
Enter.
7. A confirmation message appears. Press
Enter.