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Use key
switching to a new modulation, the PROLINK-4 activates the last measurement
configuration used for that modulation.
Also it is possible to switch between analogue and digital modes by means of
System & Standard from function menu.
4.8
External Units Power Supply (EXT. SUPPLY)
The PROLINK-4 can supply the voltage needed to power the external units
(antenna preamplifiers, in the case of terrestrial TV, LNB in the case of satellite TV, or
IF simulators).
Maximum input levels
DC to 100 Hz
5 MHz to 2150 MHz 130 dBµV
To select the supply voltage of the external units, press key
screen will display a functions menu labelled EXT. SUPPLY listing the choice of
voltages (which will depend on the band being used). Turn the rotary selector [4] to the
desired voltage and press to activate it.
The following table shows the choice of supply voltages:
Band
SATELLITE
TERRESTRIAL
MATV
In the External power supply mode the unit powering the amplifiers before the
antenna (terrestrial television) or the satellite TV receiver (house-hold or community)
also powers the external units.
Page 28
[20] to switch between analogue and digital channels. When
50 V rms (powered by the AL-103 power charger)
30 V rms (not powered by the AL-103 power charger)
Powering voltages
External
13 V
15 V
18 V
13 V + 22 kHz
15 V + 22 kHz
18 V + 22 kHz
External
13 V
15 V
18 V
24 V
Table 1.- External units powering voltages.
USER'S MANUAL. PROLINK-4
[27], and the
02/2003
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