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VS300 Operations and Maintenance Manual
Operating the transmitter
Page 2-72
Issue 8.0 2016-03-01
Other Settings
tab:
•
Pilot Level
: enter value between 6 and 12% (typically 9%); this level is added to the
composite baseband
•
Pilot 1 PPS Sync
: select Enaled or Disabled. If Enabled, enter:
–
Pilot Sync Phase (enter value between 0 and 360 degrees; typically 0 degrees
)
•
Audio Delay:
Used to time align the receiver output of decoded analog and digital audio
signals. Select Enabled or Disabled. If Enabled, enter:
– Audio Delay: enter value between 0 and 12,000 ms (default is 0)
•
Mod (Modulation) Loss Timeout
: select Enabled or Disabled. If Enabled, enter:
– Action:
Alarm Only
(no resulting action), RF Inhibit (inhibits the RF output and fans
until the audio returns) or Change Preset (changes the active preset).
– Mod Loss Preset: displayed only if Action is set to Change Preset. Select the preset from
the drop down list that will activate upon the loss of a modulating signal, post the
timeout period.
– Timeout Minutes: sets the delay, in minutes, between modulation loss detection and the
resulting action. Enter a value in the allowable range of 0 and 255 minutes.
– Timeout Seconds: sets the delay, in seconds, between modulation loss detection and the
resulting action. Enter a value in the allowable range of 0 and 59.9 seconds.
– Threshold: sets the threshold for modulation loss detection. Enter a value in the
allowable range of 0 and 100% (default is 0%) (see
Configuring an audio loss backup
for detailed instructions).
•
Hard Limiter:
If enabled, the modulation level will be limited (audio signal clipped or dis-
torted) if it exceeds the hard limit threshold. Select Enabled or Disabled. If Enabled, enter:
– Hard Limit: enter value between 0 and 160% (default is 160%)
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