4
Applications
4-1
Repeater Linking System - 1
Link VHF
Basic Repeater Linking System
Basic Repeater Linking System
Basic Repeater Linking System
Basic Repeater Linking System
Link VHF
Linking interface
Linking interface
IC-FR4000
IC-FR4000
Tx = f
1
Rx = f
2
Tx = f
2
Rx = f
1
Tx = f
4
Rx = f
3
Tx = f
3
Rx = f
4
53
Connection example
Connection example
Connection example
Connection example
Connect two repeaters by interface cable (25p to 9p).
A repeater extends communications service area and it
is very useful for two-way communications. Everyone
thinks that the service area should be as wide as
possible such as a cellular phone system. Now the
service area can be extended with Icom repeaters!
This is a basic plan to upgrade the repeater site to a link
system. This plan is suitable for linking two or more
repeater sites. When a subscriber transmits, the
repeater re-transmits a received signal. At the same
time, the received signal is sent to another repeater site,
through a VHF mobile radio. These VHF radios work as
link radios between repeater sites.
System requirements (One site)
System requirements (One site)
System requirements (One site)
System requirements (One site)
These interface cables are not sold as Icom accessories,
therefore please assemble the interface cable by
yourself. The connection diagram is as follows;
Descriptions
Model Number
Quantity
UHF Repeater
IC-FR4000
UHF Antenna
Duplexer
VHF Mobile Radio
IC-F111
VHF Antenna
Power Supply
Duplexer
ACC Cable
OPC-617
Interface Cable
25p to 9p
UHF H/H
UHF H/H
Rx = f
1
Rx = f
3
