ASTRO HVC 42 Betriebshandbuch - Seite 15

Blättern Sie online oder laden Sie pdf Betriebshandbuch für Verstärken ASTRO HVC 42 herunter. ASTRO HVC 42 20 Seiten. Broadband amplifiers

Configuration

Operating manual HVC 32 a. HVC 42 -

First configure the amplifier for the transmission of forward signals:

ASK

Remove the housing cover by loosening the cover

screw.

When the devices are delivered, the HVB 32, HVB 31 and HVB

42 amplifiers have an attenuator (0...15 dB) [1] and a tilt equal-

iser (0...15 dB) [2] (see left) in the input, which are screwed in.

They can be used to set the desired attenuation and equalisa-

tion. (Input and output are protected against overvoltage.)

You can set an attenuation (0 or 6 dB) between the amplifier

stages by reinserting the jumper [3] accordingly. Observe the

labelling.

You can also set a pre-equalisation of 0 or 7 dB between the

amplifier stages by inserting the

jumper [4] accordingly.

ATTENTION

be exceeded! (maximum input level = output level minus the

set gain for 1006 MHz)

ESULT

The device 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:

ASK

When the device is delivered, the attenuator (0...15 dB) [5] is

screwed in and must be set according to the cable network

specifications.

When the device is delivered, the tilt equaliser in the return

path [6] is screwed in (see picture left) and must be set

according to the required cable pre-equalisation or post-equal-

isation.

ESULT

The device is now configured for the transmission of return signals.

Version 01-2021A

The maximum operating level must not

page 15