SEFRAM 7803B Manuel D'utilisation page 16

7803B
The SEFRAM
maintaining terrestrial television networks.
7804B
The SEFRAM
maintaining cable networks.
Five function keys and a rotary wheel are used to operate the instruments. They are on the
front panel:
The ON/OFF button allows you to switch on and switch off the instrument.
The Parameter key allows you to enter, in a table, a list of setups and their
parameters.
With the Measure key you will be able to choose the measure from the available list.
- Level/Power
- BER/MER
- Constellation
- Measurement map
- Spectrum
The Save key is used to store tables and measures.
The Configuration key allows you to choose the frequency map and the Unit of
measure you want to work with, to recall the measures and places previously saved
or to set the date and time, etc.
The rotary wheel makes it possible to choose whatever parameter you want to
change (by rotation), to select it or cancel the selection (by pressing the key) and
finally to modify the digit currently affected (by rotation).
The VDC indicator light (on the front panel) comes on when the remote supply is connected
with the RF input. A voltage (24 V) is then injected. The remote supply function is an option you
can choose.
The BNC signal input, also called RF input, is on the front panel of the instrument.
On the back panel, you will find:
−
A jack that allows the external power supply of the instrument as well as the charging of
the battery.
−
An USB mini connector that provides a link and thus allows the updating of data file and
the connection to a computer with the TR7836 transfer software.
– 7803B/4B –
field strength meters has been designed for installing and
field strength meter has been designed for installing and
p. 16