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Unity 4600 User's Manual
atten: Must be a numeric value for attenuation in dB. Legal values are given in
individual IRD specifications. This programs the net audio attenuation, where
'0' gives 0dB attenuation (maximum level). If field omitted, attenuation
remains unchanged on that audio port.
The audio PES stream, with the language descriptor program, is decompressed
in the port audio port, and then its components are routed to the Left and Right
outputs according to route. That ports attenuation is changed to atten, if sup-
plied.
SETLABEL label
label: Unit label. Field entry is truncated at 10 characters.
Sets Unit Label displayed on IRD home LCD screen (and Terminal Welcome
Banners).
SETLNB {rf_feed} {LO_freq}
Rf_feed: If the RF Switch expansion option is installed, this is one input to that
switch (1 through 4). If no RF Switch option is installed, then it is an error to
enter data here!
LO_freq: Either a number or mnemonic. If a number, this value represents the
LNB LO frequency in MHz. It can have up to two decimal places and its valid
range is from 0 to 14000.00. The legal mnemonics are "C" (for Standard C-
band, 5150 MHz default), "KU" (for US Ku-band, 10750 MHz default),
"EHKU" (for European Hi Ku-band, TBD MHz default), or "ELKU" (for
European Low Ku-band, TBD MHz default).
(1) If the current LNB mode selected is Universal: This command is legal only
when entered without parameters. In this case, the IRD returns the current cal-
culated setting command sent to the LNB (either "9.75 GHz" or "10.60 GHz").
(2) If the current LNB mode selected is LO: This command sets the assumed
LNB LO frequency to the value entered in MHz OR the MHz value repre-
sented by the mnemonic. If there is an optional RF switch installed, then the
rf_feed field data must be entered. Entering the command without parameters
returns the current setting.
A Local Control Command (available from the terminal regardless of "Local
Control Enable/Disable" commands from the network).
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