R.V.R. Elettronica HC2 LCD, User Manual

HC2

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User  Manual

Rev. 1.1L - 07/07/03

5. Installation and use

This chapter is intended to summarize the necessary points for the installation of
the device. In case any of the arguments is unclear, for example when you use the
combiner for the first time, we suggest to carefully read the whole manual.

5.1

Preparation

Unpack the HC2 and before any other operation check the unit for any shipping
damage; in particular, check that all the controls and connectors on the front and
rear panels are in good conditions.

Check the mains voltage selector on the rear panel: the selected value is indicated
by an arrow. If required, extract the selector block levering with a screwdriver.
Rotate the block until the correct printed value corresponds with the arrow, and
then reinsert the fuse block.

If it is necessary, check the integrity and the value of the fuse inside the voltage
changer block; the required fuse type is:

•

Aux

6.3A 5X20

Mains

1A 5X20

(230-240V)

•

Aux

6.3A 5X20

Mains

1A 5X20

(100-120V)

Connect the RF output cable of the exciter to the N-type input of the splitting
section of the combiner. Connect two cables between the output N connectors of
the splitting section of the combiner and the RF input of two suitable amplifiers.
Connect two cables between the RF output of the amplifiers and the input
connectors of the combining section of the coupler.

Connect the output connector of the combining section to the antenna feeder or
to a dummy load with a power rating suitable for your application. Link, using a
coaxial cable, the BNC “Alarms” connector to the “Interlock” connector of the exciter.
Connect the “Fold back” connector to the “EXT AGC” input of the exciter, if such a
functionality is present.

All the above connections are described in the documentation of the transmitting
station, if the HC2 is supplied as a part of a complete transmitter.

ATTENTION: It is essential that the unit is properly earthed to ensure both the
safety of operation as well as the correct working of the equipment.

After all the connections have been made, connect a proper cable to the hybrid
coupler’s mains input plug.

5.2

Operation

To perform its intended pourpose, the HC2 is always used in a transmitter
comprising an exciter and two RF amplifiers. In the following description, we will in