Crown Broadcast FM 20/100 W, user manual– 05/2013
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Crown Broadcast, a division of International Radio & Electronics Corporation 25166 Leer Drive, Elkhart, Indiana, 46514-5425 USA
Ph +1 (574) 262 8900
5.4.
Main parameters description
Parameters are described for the main menus; serial commands are indicated in parenthesis. Possible
values and/or value format are indicated for each parameter.
5.4.1. TX
Parameters
menu
These parameters are available as TX and CONF serial commands (see sections 6.2.8 and 6.2.3).
3 DB
(TX.3DB)
With this parameter, set the triggering threshold for the 3 dB alarm. Default value is half the transmitter’s
power.
From 0 to 9999 dB (depending on the transmitter’s power)
MAX VSWR
(TX.VSWR.MAX)
With this parameter, set the triggering threshold for the VSWR alarm.
From 0 to 99.9
VSWR TRIP
(TX.VSWRTRIP)
With this parameter, enable or disable the reflected power safety (ON or OFF). In case the VSWR is too high
(reflected power greater than the maximum threshold), RF is disabled and automatically starts again. If the
fault is still present, the cut/restart process is repeated 3 times. If the 3
rd
time it is still present, the transmitter
is cut for good.
5.4.2. Input Switch menu
These parameters are available as INPUT and CONF serial commands (see sections 6.2.5 and 6.2.3) but
are managed differently. The PRIO parameter for each input sets the selection order for the various audio
sources.
MODE
With this parameter, choose whether audio source selection is done manually or automatically. In manual
mode, the user selected audio source is used regardless of the state of the audio source. In auto mode, the
effective audio source depends directly on the switching configuration and on the channels selected as Main
or as Backup (1, 2 or 3).
MANU or AUTO
MAIN
With this parameter, select the main audio source.
LINE1, LINE2, MPX1, MPX2 or GENE
