Rev F Configuration 4-15
4
4. Attenuate the RF output ports:
a. At the Measuring Amplifier, measure the adjusted Return High Balancing Carrier Level
and record it as shown in the box below. Calculate the PAD Value.
b. Select an SPB PAD that has a flat loss as close to the PAD Value as possible.
c. If necessary, at the Balancing Amplifier, remove the SPB-0 PAD or factory installed
jumper (stripline) from the REVERSE PAD plug-in area. Install the selected SPB PAD
into the REVERSE PAD plug-in area.
5. At the Balancing Amplifier, measure the signal levels of both return balancing carriers at the
Port 1 and Port 3 external testpoints and record these levels on the FlexNet® 700 Series Line
Extender Data Sheet.
6. Close the housing and replace the caps on all external testpoints. Refer to Housing Closing
and Tightening on page 3-16, if necessary.
– =
System Return High
Balancing Carrier Level
(Measuring Amp)
System Return Low
Balancing Carrier Level
(Measuring Amp)
System Tilt of Measuring
Amp
– =
Measured Return High
Balancing Carrier Level
(Measuring Amplifier)
Measured Return Low
Balancing Carrier Level
(Measuring Amplifier)
Measured Tilt
– =
System Tilt Measured Tilt Equalization Value
– =
Measured Return High
Balancing Carrier Level
System Return High
Balancing Carrier Level
PAD Value
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