Nautel NX15, Руководство по эксплуатации и обслуживанию

Страница: 83 / 178

NX15/NX25 Operations and Maintenance Manual Operating the transmitter
Issue 6.0 2019-01-31 Page 2-59
Preset examples - IBOC preset with analog backup
1. Set two presets similar to the two previous examples.
2. Under
Audio Loss
, set
Mod Loss Timeout
to
Enabled
. Several other selectable fields will
appear.
3. In the
Action
field, select
Change Preset
from the drop-down list. The
Mod Loss Preset
field will appear.
4. In the
Mod Loss Preset
field, select the desired preset from the drop-down list. This is the
preset that will activate upon a modulation loss.
5. Set the remaining mod loss timeout fields. See “
Audio Loss
” on page 2-56 .
6. Save the preset with the desired name (new or existing). See “Editing or Creating
Presets” on page 2-51 .
Preset examples - DRM preset
1. Enter
Output Power
field with desired power level.
2. Set
Overall Mode
to
DRM
.
3. Under
Digital Settings:
– set
Data Source
as required (
AES 1
or
AES 2
).
– set
DRM Bandwidth
as required.
– set the
AES Input Level
for the selected data source to the appropriate level for the
DRM modulator.