1-1
July 2000
Part No. 001-2000-720
INTRODUCTION
SECTION 1 INTRODUCTION
1.1 DESCRIPTION
The Voter System is an additional feature of the
Conventional Repeater System that allows receiver
voting. The voter system is used in Wide-Area Sys-
tems that require simultaneous RF coverage over an
area not capable of coverage by a single repeater site.
The Voter System is also used to assist the RF cover-
age of a system using portables where a single
receiver cannot cover the area, but a single transmitter
site is sufficient for outgoing coverage.
1.2 MAIN COMPONENTS
The Voter System consists of at least one or more
of the following modules. See Figures 1-1 and 1-2 for
a Local Site and Figures 1-1 and 1-3 for a Remote Site
and Figure 1-4 for a 5-channel voter system block
diagram.
1.2.1 CONVENTIONAL VOTING RECEIVER
The CVR (Conventional Voting Receiver) is the
Receiver and Interface board. The CVR decodes the
condition of the squelch line, open or closed, from the
receiver. In the Remote site the audio is then passed to
the Voter Module. In the Local Site, the CVRs are
hard wired to the Voter Module.
1.2.2 VOTER POWER SUPPLY
Each Voter Power Supply (VPS) has the capacity
to handle two VSHs (see Section 8). The maximum
total of VSHs is 27, divide this by 2 and the total num-
ber of VPSs needed is 14. There are two VPSs per
power shelf, therefore, 7 power shelves are the maxi-
mum number per system.
1.2.3 COMPONENTS OF A VOTER SYSTEM
Component
Part Number
Section
VHF Receiver
023-203x-220
2
UHF Receiver
023-20x4-220
3
800 MHz Receiver
023-2008-220
4
900 MHz Receiver
023-2009220
5
Voter Module
7
Power Supplies
250-3039-xxx
8
Figure 1-1 VOTER SYSTEM
VOTER SWITCH
RECEIVERS
CVR
CVR
CVR
CVR
BASE STATION
LOCAL SITE
REMOTE SITES
Содержание CONVENTIONAL VOTING RECEIVER
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