Tiernan TE3000, Installation And Operation Manual

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56 Using a Remote Unit
MOD SRC ASI, Backplane ASI Modulator input source; used to select either ASI or the backplane as
the source for the modulator’s digital input stream.
The TE3000 outputs the internal transport stream in ASI format on a
BNC connector, which is located on the back panel.
Front panel command equivalent: Config>Output>Mod Source
MOD TC Off, On Off Disables or enables the carrier modulation for testing purposes.
Parameters are:
!
Off = disables pure carrier – the carrier is modulated with the data
stream before being transmitted
!
On = enables pure carrier – the carrier is not modulated with the
data stream before being transmitted.
This command works in conjunction with the MO DCK command.
When MOD CK is set to off, the MOD TC setting is not implemented.
Front panel command equivalent: none
MOD TCMODE Off, On Off Transmit carrier restore mode. Parameters are:
!
Off = following power-up or reset, the modulator output is disabled
regardless of the modulator output carrier state prior to reset or
power-up
!
On = following power-up or reset, the modulator output is restored
to the state that was stored in flash memory just prior to reset or
power-up.
The On setting is most common for unmanned applications which may
encounter power outages. For these situations, the modulator should
return to a modulated carrier following power restoration.
Front panel command equivalent: Config>Output>Tx Power-up
MOD TEMP — — Query-only command; displays the current temperature of the
modulator in Celsius.
Front panel command equivalent: none
MOD TF 52000000 to
88000000Hz, in 1Hz
increments
70000000Hz Used to set the modulator carrier frequency.
The acceptable range of options is implemented with a pass band filter
that filters out all frequencies below and above the range.
When selecting a carrier frequency, you must take into account the
satellite bandwidth required for transmission. If you select a carrier
frequency that is too close to either end of the valid range, data may be
clipped by the pass band filter. For information on calculating the
satellite bandwidth, see the MOD SR command.
Front panel command equivalent: Config>Output>Tx Freq
MOD TP -20.0 to -5.0dBm, in
0.1dB increments
-5.0 dBm Transmit power; used to set the output transmit power of the TE3000
modulator.
Front panel command equivalent: Config>Output>Tx Power
MOD XL Locked, Unlocked — Displays if the modulator is locked to the input transport data stream.
Responses are: locked = the modulator is locked onto the incoming
signal; Unlocked = the modulator is not locked onto the incoming
signal.
Front panel command equivalent: Config>Output>Mod Status
TE3000 Remote Command Descriptions
(continued)
Remote Command Parameter Range Factory
Default
Description