Technalogix TXF-1000, Руководство по эксплуатации

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1
Safegua
rds
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Terms and
Warranty
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Principl
e o
f
Operati
on
4
Ins
talla
tion
5
Operati
on
6
C
ont
rol Syst
em
7
RF Componen
ts
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Power
Supp
ly
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Maintenan
ce
10
Troubleshoo
ting
Main RF Screen
The Main RF Screen summarizes key parameters for the RF carrier of the FM
signal, as illustrated below:
FORWARD POWER: This is the power heading out of the power amplifier or
transmitter to the antenna or load, measured in watts or scaled percentage,
depending on how the units are set in the Settings Screen).
REFLECTED POWER: This is the power coming back in to the power amplifier
or transmitter from the antenna or load, measured in watts or scaled percentage,
depending on how the units are set in the Settings Screen). As there is no
internal circulator or isolator installed within the enclosure, it is important to
minimize VSWR with a good quality antenna installed using proper broadcast
techniques. Ice build-up on the antenna and damages to 50 ohm transmission
line can also generate damaging reflected power.
TEMPERATURE: The temperature is measured on top of the heatsink near the
final transistors and displayed here. User can toggle between Celsius and
Fahrenheit from the Settings Screen. In the event that this temperature exceeds
the factory set trip point, the RF carrier level will fold back to protect the unit.
Common causes for high temperatures can include failed internal fans or air
conditioning in the broadcast facility or a blocked fan.
DC VOLTAGE: The switching power supply DC output voltage is displayed here.
If additional screens, details, and settings are required, several additional
screens can be accessed through the SYSTEM SETTINGS button described
later in this section.