page 15
Configuration and start-up
Operating manual HV 433-85 Vario -
Version 01-2021A
3.
You can also set attenuation (0 or 6 dB) between the amplifier
stages by reinserting the jumper [4] accordingly. Observe the
labelling.
4.
Between the amplifier stages (interstage), you can set a
pre-equalisation (0 or 7 dB slope) of the outgoing cable length
by reinserting the jumper [5] accordingly. Here too, note the
label next to the jumper.
5.
Use the switches [3] to adjust the frequency range in the
forward path according to the inserted diplex filters.
If you want a frequency range of 104 - 1218 MHz: Plug in the
DF 85 type diplex filters [7] and set the frequency switch [3] to
the position “104 MHz”.
If you want a frequency range of 258 - 1218 MHz: Plug in the
DF 204 type diplex filters [7] and set the frequency switch [3] to
the position “258 MHz”.
R
ESULT
:
The amplifier is now configured for the transmission of forward sig-
nals.
To transmit return signals, the amplifier must be configured accord-
ingly.
The following describes how to configure the amplifier for the trans-
mission of return signals:
T
ASK
1.
Adjust the attenuator (0...15 dB) [6] according to the cable
network specifications.
3
4
5
6
7
