User's Manual

Weehawken Tunnel VHF Repeater System
User/Maintenance Handbook
Handbook N.-Weehawken_VHF Issue No:-A Date:-05/08/05
Page:-
13 of 75
2. OVERVIEW/ SYSTEM DESCRIPTION
2.1 General System Description
The Weehawken tunnel radio system is designed to amplify various bands of radio frequencies,
in either channelised or band selective modes. This handbook is dedicated to the VHF radio
repeating system. All the hardware (except the River Portal remote BDA) is built into standard
19” rack mounted cabinets which have an environmental IP rating of 54.
The systems in this document will be described separately, as individual shelves (VHF) and the
various passive combiners, splitters and cross-band coupler shelves will be described in other
documents. Every active module in the entire system has a dedicated alarm and these are series
wired within the shelves to a relay which gives a volt-free output pair for each shelf which is
wired to a ‘krone-block’ termination in the rack cabinet.