4/18/11
888-2587-001
2-9
WARNING: Disconnect primary power prior to servicing.
Section 2 Installation & Initial Turn-On
FM HD Radio System
STEP 3
Turn on, then allow time for the exciter to boot up to normal operational
mode - about 40 seconds for HD operation - and then verify there are no
fault indications on any system device
NOTE:
Refer to the HDx-FM manual (888-2570-001) for detailed information pertaining
to specific exciter functions.
STEP 4
Turn on any Circuit Breakers, On/Off or Power switches for other
system devices
STEP 5
Observe all devices for fault indications
STEP 6
Verify the Harris Factory Test Data or similar documentation supplied
with the equipment for typical readings
2.4.2
Bring Up Each Transmitter (Cabinet) Independently
It is recommended that each transmitter be initially connected directly to a test load and
turned on, independently. Refer to corresponding documentation for detailed
procedures to verify proper operation.
2.4.3
Dual Cabinet Transmitter Systems
Once the correct operation of both transmitter cabinets of a Dual cabinet system
(ZDHD+) is verified independently, they must be combined, amplitude and phase
adjusted, and tested as a single entity. Refer to corresponding documentation for
detailed procedures to perform alignments and verify proper operation.
2.4.4
Connect All Transmitters to Combiner System
After the operation of each transmitter is verified, connect the combiner system
according to the system design.
2.4.5
SLC Phase Alignment
NOTE:
ZX transmitters are not configured for split level combining (SLC) per se. That
is, they are not aligned in factory for the transmission of a non-standard FM to
HD power ratio for use with a split level combiner. If SLC operation is desired
with a ZX transmitter, please contact Harris for information on the necessary
modifications and adjustments.
