Fagor Stellar 200 Mode D'emploi page 15

■ MENU DESCRIPTION
0. Auto Configure
Accessed from the initial screen after pressing the right arrow button for 5 seconds.
It allows performing an automatic configuration of the equipment:
• All channels present on each VHF / UHF input that have a minimum level are detected.
• Same channel detected on different inputs, only the one with the highest input level will be activated.
• The pre-amplifiers of each VHF / UHF input are configured, according to the input levels.
• The output level of the device is configured according to the number of processed channels.
1. RF-IN
This menu is repeated for each of the four VHF / UHF inputs of the Stellar 200.
1.1 Pre-Amplifier
Enable or disable the pre-amplifier action in each VHF / UHF input of the module.
The pre-amplifier option increases the signal power of that input before the filtering and conversion
blocks. An excessive level of the channels to process in this part reaching saturation, or an increase
of noise level, can degrade signal quality. Therefore, it is recommended to know about signal quality
on the input side (gain, tilt, bandwidth, and noise figure) when applying pre-amplifier to measure its
impact on the output side.
Recommendation
Turn on the Pre-Amplifier only when the input signal level of one of
the channels to process of that input, is too low (lower than 60 dBµV).
NOTE: In the same RF input there could be low level channels along with other
high-level channels, wanting both to be processed. The pre-amplifier action could
disturb the high-level channels degrading its signal quality.
All the channels of the RF input to be processed must be considered to decide to
turn on / off its pre-amplifier.
1.2 Antenna Power
Each input connector is capable of supplying 12V, 100mA (max) to an active antenna or an external
pre-amplifier. This menu allows the user to turn on / off the power on each input port.
1.3 Auto Scan
Automatic channel search. First, it must be configured between which channels is done the search.
The module will remove the whole channel list of that RF input and will test each channel presence.
Channels with a minimal signal level (> 50 dBµV) will be added to that RF input channel list, with the
same channel at the output. In case the output channel would be used by another RF input, the
channel won't be added to the list. Then, the user will be able to edit the detected channels, changing,
removing, or adding new ones.
1.4 Channel list
Each VHF / UHF input will have its own list of managed channels.
Maximum output channel count is 32, including all the managed channels of all the inputs.
The channel list is made up of all the channels detected after doing the automatic scan for that
input and the channels added through that specific menu.
Up and down arrows on the keyboard can be used to move through the channel list.
For each channel of the list, the following information will be displayed on the LCD:
• IN-UHF 1 refers to the port of the signal input.
• Ch21 refers to the input channel.
• 21 refers to the output channel.
• 73 dBµV is the signal level automatically measured by the Stellar 200.
:
15
IN-UHF 1
Ch21->21 73 dBµV