Instruction manual Digital 9000 System

Digital 9000 | 61
Using the EM 9046
There are three ways to assign a frequency preset or a frequency to a chan-
nel:
1.
You can automatically select the frequency preset with the lowest inter-
ference level. This is the quickest and most convenient way of assigning
a frequency to a channel.
2. You can manually select a frequency preset.
3. You can manually set an arbitrary frequency.
Automatically selecting a
frequency preset
To automatically select the frequency preset with the lowest interference
level, proceed as follows:
왘 Turn the jog dial until “auto” appears.
After the frequency scan, the receiver automatically creates an ordered
list containing the 32 frequency presets with the lowest interference
levels. The frequency presets in the list are ordered according to increas-
ing interference levels.
The first frequency level in the list has the lowest interference levels.
The mark automatically snaps into position on this frequency preset
and the corresponding frequency value is displayed.
The numeric values of the measured interference levels for antenna A
and antenna B are additionally displayed at the top margin of the
screen.
왘 Press the jog dial.
The selected channel is assigned the frequency preset with the lowest
interference level.
Manually selecting a
frequency preset
To manually select an unused frequency preset, proceed as follows:
왘 Move the mark by turning the jog dial G.
The mark snaps into position on the frequency presets.
왘 Select a frequency preset.
The numeric values of the measured interference levels for antenna A
and antenna B are additionally displayed at the top margin of the
screen.
The interference levels of both antennas should be within or below the
interference zone that is required or useful for this channel (see page 56
and 58) and should be as low as possible.
Please note that the frequency presets are assigned in the order
of increasing interference levels:
• The first channel is assigned the frequency preset with the
lowest interference levels.
• The second channel is assigned the frequency preset with the
next higher interference levels.
• The last channel is assigned the frequency preset with the
highest interference levels.
You should therefore use the first channel for the most important
transmission link in your multi-channel system.
Each new frequency scan creates a new frequency preset list.
detail scan
auto