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Technical Data - 146.820 MHz.
System - W9OBH/R System Location: The repeater is located in the Madison County EOC at 200
N. Delaware St. Anderson. The supporting tower is 360 feet with the antenna
mounted at 250 feet on the south side of the tower. RF Package: The repeater package is a Kenwood TKR-750 unit rated at 50
watts output running at 25 watts (installed Oct. 2001). It has provisions for
an internal repeater control if needed. A heavy duty power supply is included. Controller: The controller is a Computer Automation Technologies
CAT-1000. This unit provides the on- frequency typical control functions. It
also includes a digital audio memory to sample and replay received audio.
Several macro variations announce the status of activity on the repeater. Duplexer: The duplexer is a WACOM WP-641 Bandpass-Reject unit composed
of four six inch diameter cavities. The receiver and transmitter side losses
are about 1.5 dB (retuned, Jan. 2017). Antenna: The antenna is a Telewave
ANT150F6, an omnidirectional 6 dB gain (April 2010). It is mounted at 250', 6 feet out
from the tower. Feedline: The feedline is 7/8 inch diameter 50 Ohm Heliax,
about 300 feet long, with a loss of about .6 dB per 100 feet. Coverage: The effective radiated power of the system is 50 watts with a usable
range to a typical handheld of 15 miles and a mobile of about 30 miles. |
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Technical Data - 223.860 MHz.
System - W9OBH/R PL 151.4 System Location: The repeater is located in the Madison County EOC at 200
N. Delaware St. Anderson. The supporting tower is 360 feet with the antenna
mounted at 200 feet on the south side of the tower. RF Package: The repeater package is a BridgeCom BCR-220 running at 29 watts out of the duplexer
Controller: The controller is the internal BridgeCom package providing standard repeater functions, ID, time-out, reset beep, etc. Duplexer: The duplexer is a TX-RX Systems 28-52-02A Vari-Notch unit composed of four 4 inch diameter cavities with insertion loss of 1.2 DB. Antenna: The antenna is a Telewave ANT220D6-9, an omnidirectional 9 dB gain. It is mounted 6 feet out from the tower on the south side. Feedline: The feedline is 7/8 inch diameter 50 Ohm Heliax,
about 300 feet long, with a loss of about .6 dB per 100 feet. Coverage: The effective radiated power of the system is 100 watts with a usable range to a typical handheld of 10 miles and a mobile of about 30 miles. |
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Technical Data - 147.090 MHz.
System - W9OBH/R System Location: The repeater is located at the County radio system site,
Fire Training Center on Martin Luther King Dr., south of Anderson. The tower is
450 feet high with this antenna at 150 feet. This installation was completed in
January, 2017. RF Package: The repeater is a Kenwood TKR-750 with 20 watts output from the duplexer.
Controller: The controller is internal to the Kenwood repeater controlling typical repeater functions.. IRLP capability was added in April, 2003. The IRLP computer interface is a Rasbery Pi to provide the IRLP functionality (October, 2025). Duplexer: The duplexer is a WACOM WP-641 Bandpsss-Reject
unit composed of four six inch diameter tuned cavities. The receiver and
transmitter loss is about 1.6 dB. Feedline: The feedline is 200 feet of 7/8 inch Heliax
hardline. Antenna: The antenna is a Sinclair SRL249*4 fiberglas
omnidirectional 6 dB gain. It is mounted at 150', 6 feet from the tower on the north
side. Coverage: The effective radiated power of the system is about 60 watts with a usable range to a handheld of about 12 miles, and 25 mile range to a typical mobile. |
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Technical Data - 443.350 MHz.
System - WA9CWE/R System Location: The repeater is located at the County radio system site,
Fire Training Center on Martin Luther King Dr., south of Anderson. The tower is
450 feet high with this antenna at 250 feet. This installation was completed in
January, 2017. RF Package: The repeater is a Kenwood NexEdge
NXR-810K2 (purchased July 2011) with an output of 40 watts. Controller: The controller is the internal controller for the NexEdge. Duplexer: The duplexer is internally mounted in the cabinet of the
repeater. Feedline: The feedline is about 300 feet of 7/8 inch Heliax hardline. Antenna: The antenna is a Phelps Dodge fiberglas
omnidirectional 6 dB gain unit. It is located 6 feet out from the tower on the
north side at 250 feet. Coverage: The effective radiated power of the system is 50 watts with
a usable range to a handheld of about 12 miles, and 50 mile range to a typical
mobile. Note: This repeater package is owned and maintained by Madison County EMA, not the Anderson Repeater Club. |
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