User's Manual

V H F A M P L I F I E R T E C H N I C A L M A N U A L

Unpacking

1) The VHF BDA should be unpacked soon after delivery and carefully inspected for

possible shipping damage. It is the customer’s responsibility to file claims with the

freight carrier if damage is suspected and is usually limited to a certain time period

after delivery.

2) Carefully compare the packing slip(s) against the package contents to verify the

receipt of all expected items.

3) Retain all product documentation and make sure that manuals are forwarded to the

appropriate site management, installation and service personnel.

Accessories

1) The major accessory commonly supplied with the VHF BDA is attenuator pads. They

are used for padding the power on the BDA, reducing its output level. Based on the

size, cable, and location of the antennas, you can optimize the output of the BDA by

using the 3dB and 6 dB supplied pads.

Lightning Protection

1) Although relatively rugged, lightning can damage the internal working mechanisms

inside the BDA. We recommend the installation of a lightning surge suppressor in the

transmission line where it enters the building prior to the BDA. The suppressor

should be grounded to the building ground buss at the transmission line entry point.

Chose a suppressor that will handle the expected amount of input power from the

BDA to the donor antenna.

Amplifier Installation

1) Verify that the frequencies listed on the Amplifier Box label agree with the channel

assignments for the Duplexer Box. If they are not the same, contact the factory for

advice and instructions. Please read the Warnings and Notices at the bottom of the

next page before proceeding.

2) Mount the Amplifier in a grounded rack, cabinet or wall. The Amplifier Box is all-

metal and the mounting screws can be used as attachment points for a ground wire.

3) Check the Isolation between the donor antenna and the Distribution antennas is

20dB above the Gain of the Amplifier.

4) Connect the Donor Antenna Port and Antenna Output to Distribution Network port

through the Duplexer Box using solid-shield or double-braided 50 ohm coaxial cable