Raise/Lower Rf Output Power; Displays; Fault/Foldback/Interlock Led Indications - Harris FlexStar Technical Manual

Fm hd radio system

Table of Contents

Section 3 Operation

NOTE:

The HDx-FM Exciter can be connected to an external UPS to mainmain power

during short power bumps eliminating the 5 second turn-on time.

•

Pressing the HIGH button will turn transmitter on at 100% TPO (or previously set

high power level)

•

Pressing the LOW button will turn transmitter on at 50% TPO (or previously set low

power level)

•

Pressing the OFF button will turn transmitter off

3.2.1.2

ZHD+ transmitters should operate at 100% TPO as configured in the factory and

verified during Initial Turn-on. This is indicated on the Transmitter meter display either

as the actual TPO (in kW), or as a percentage (%). Tip: By pressing and holding the

FWD PWR button this reading will change from a % to the actual forward power in

Watts. If it is desired to change the RF output power, press and hold the RAISE or

LOWER button until level is reached. For small changes, momentarily press the button.

3.2.1.3

•

DIAGNOSTICS - Can be used to access status, in-depth metering, fault, and config-

uration information.

•

TRANSMITTER - Common operational meters are accessable by pressing one of the

buttons below: Forward Power, Reflected Power, PA Current, PA Voltage, and APC

(Automatic Power Control) Voltage.

3.2.1.4

NOTE:

For Emergency conditions refer to "3.6 Emergency Operation" on page 3-8.

Front panel LEDs can indicate normal and abnormal conditions. Typically, GREEN is

"good" and RED is "bad".

A continuously lit Fault LED indicates an active fault. If the LED is blinking it is an

indication of a previous fault conidition that is no longer present, and the tranmsitter

could be operating normally. Refer to "3.6.2.1 FAULT LED Illuminated" on page 3-8

for more information.

3-2

WARNING: Disconnect primary power prior to servicing.