Surge Arrestors; External Filter - Microhard Systems Nano IP Series Operating Manual

7.0 Installation

7.2.3 Surge Arrestors

The most effective protection against lightning-induced damage is to install two lightning surge
arrestors: one at the antenna, the other at the interface with the equipment. The surge arrestor
grounding system should be fully interconnected
grounding systems to form a single, fully integrated ground circuit.
Typically, both ports on surge arrestors are N-type female.
All installation,

7.2.4 External Filter

maintenance, and
removal work must be
Although the Nano IP is capable of filtering-out RF noise in most environments, there are cir-
done in accordance
with applicable codes.
cumstances that require external filtering. Paging towers and cellular base stations in close
proximity to the Nano IP antenna can desensitize the receiver. Microhard Systems Inc.'s exter-
nal cavity filter eliminates this problem. The filter has two N-female connectors and should be
connected inline at the interface to the RF equipment.
© Microhard Systems Inc. CONFIDENTIAL
with the transmission tower and power
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