Anrtisu Site Master S331D - Bias Tee (Option 10 A)

Bias Tee (Option 10A)
Option 10A provides a bias tee installed inside the S33xD Site Master. The bias arm is con
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nected to a 12-24 Vdc (variable in 1V increments) power source that can be turned on as
needed to place the voltage on the center conductor of the
RF In port. This voltage can be
used to provide power to block down-converters in satellite receivers, and to power some
tower mounted amplifiers.
The bias can be turned on when the instrument is in either Spectrum Analyzer or Transmis
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sion Measurement (Option 21) mode. When bias is turned on, the bias voltage and current
are displayed in the upper left corner of the display. The 12-24 Vdc power supply is de
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signed to deliver 6 Watts maximum, continuously.
Procedure
Step 1.
Press the SYS key, then the
Application Options soft key.
Step 2. Select the
Bias Tee soft key.
Step 3. Select the
Bias Tee Voltage soft key and use the number keys or the Up/Down
arrow keys to set the bias tee voltage between 12 and 24 Vdc, in 1V increments.
Step 4. Select the Bias Tee On/Off soft key to turn the bias voltage on. The state of the
bias tee will be saved with the runtime setup.
Step 5. Press the
Bias Tee On/Off soft key again to turn the bias tee voltage off.
NOTE: If power to the Bias Tee exceeds 6 Watts maximum continuous opera-
tion, the Bias Tee relay will open and a fault message will be displayed.
11-4
Chapter 11 Transmission Measurement