4-3
Editing A Channel Plan
The next step is to edit the channel plan to characterize it for your
particular system. Cursor down to Edit Channel Parameters and press
ENTER
. A listing of all the channels within the frequency range
designated in the Build Channel Plan phase will appear on the
screen. Notice that there are columns for enabled, channel type,
channel number, label, frequency (video carrier), sweep, tilt, and,
scrambled.
Each of these features for each channel may be edited by cursoring to
the channel to be edited and pressing the
Edit
soft key.
Check the listed channels to ensure that channels that you know are
not video are not listed as video channels. If during the Build Chan-
nel Plan phase the receiver detects a signal at a video carrier fre-
quency it assumes it is a video channel. Some FM carriers may
happen to fall at video carrier frequencies for channels 95-97. Be sure
these channels are properly designated as video or single carriers. FM
signals may be entered as channels, but must be designated as Single
Carriers.
At this time be sure to edit each scrambled channel to ensure that it
is designated appropriately. A special algorithm is used to ensure that
the peak of these signals is measured.
At this time you may also wish to designate tilt channels, and label
the channels with call letters, but this is not essential to begin the
sweep process.
You may have noticed that the channel plan list included some
channels that were not marked "Enabled". These channels can be
converted automatically to sweep points using the Build Sweep
Points selection from the channel plan menu. Before doing this,
make sure that these "disabled" channels do not encompass an area of
digital or other signals that you want to avoid sweeping. If they do,
simply edit these particular channels and toggle to "No" on the
Sweep Channel selection. When this is completed, select Build
Sweep Points from the Channel Plan menu. Sweep points can
convert each disabled channel into 1, 2 or 3 sweep points.
