Chapter 6 - Measuring range
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Here you can set the UB centre frequency that corresponds to the selected SCR address. This is the
frequency that a connected receiver needs to tune to. Use the
Up
and
Down
keys, the
<-
and
->
keys, or the numeric keypad to set the UB centre frequencies within the range from 950 MHz to
2.150 MHz.
Press
ENTER
to save the entry; the menu with the SCR address list reappears. Press
ENTER
again
to complete configuration of the UNICABLE control in the measuring receiver.
All entries are stored in non-volatile memory; the instrument will operate using these settings when it
is next switched on.
- SCR address bank
Some UNICABLE units operate with eight receivers per cable and others with four receivers. Such
units generally operate with differing UB centre frequencies.
To simplify the procedure for the user, the instrument offers a feature that enables switching between
four SCR-ADR banks. That means that the device has three banks of SCR addresses for UNICABLE
units that operate with 8 receivers and a different bank of SCR addresses for UNICABLE units that
operate with 4 receivers. The UB centre frequencies can also be changed within the banks as
described above. That means that the next time the device is switched on, it will operate again with
these SCR-ADR <-> UB centre frequency settings. In addition, the bank setting is stored in the tuning
memory. This makes it possible for you to combine memory locations with Bank 0 and Bank 1 as
desired.
- Entering a name for the bank
You can select a bank in the SCR-ADR-Bank menu. Press the -> key to open a menu where you can
assign a name to the bank. For example the name of the manufacturer of the UNICABLE
components. Using the
<-
or
->
arrow keys, you can move the cursor to the desired position in the
label. You can edit the label with alphanumeric characters using the arrows or the number keys. The
name can be up to 20 spaces in length.
- Confirming and saving the entry
Pressing the
ENTER
key closes the input menu and stores the values in the non-volatile memory.
- Wideband RF mode
Some UNICABLE units (LNB) work exclusively on a single oscillator frequency. This means that the
low band and the high band are combined in a single band. This special mode can be set on the
instrument via
LNB
->
MODE
->
WIDEBAND RF
. The UNICABLE control can be switched back into
standard mode (2 oscillator frequencies) via
LNB
->
MODE
->
STANDARD RF
.
This is also the instrument’s default setting. The setting is non-volatile; the measuring receiver will
work in this mode when UNICABLE control is next accessed. This setting is also stored in the tuning
memory.
- LO Frequency
(applies to wideband RF mode only)
As already mentioned, some UNICABLE units (LNB) work exclusively on a single oscillator
frequency. This frequency must be set before in the instrument can be used to control such units.
You can choose between oscillator frequencies 10.000, 10.200, 13.250 and 13.450 GHz via
LNB
->
LO-Frequency
. The setting is also non-volatile. This position is also incorporated in the tuning
memory. The default setting is 10.200 GHz.
6.5.3.2 Operation
The UNICABLE control can be used to convert up to eight SAT IF levels in up to eight UB slots.
These are further divided into two satellite positions, each with four SAT IF levels. Each connected
receiver (max. 8) operates using a dedicated UB slot. This is defined via the SCR address.
These UNICABLE control parameters are set via
LNB
->
SAT-IF-Layer
->
Satellite
and ->
SCR-
ADR.
The measuring receiver is tuned as described in “Frequency input”.
The difference when using the UNICABLE control is that the desired transponder frequency is
converted to the centre frequency of a UB slot in the UNICABLE unit.
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