Allen County Amateur Radio Technical Society
146.88 Repeater Information
N 41 05.67 W 85
The 146.88 system is a carrier-access
repeater located at the site of WANE-TV on West
State Blvd in Fort Wayne. Itís antenna is side
mounted at the 600
foot level of the 855 foot tower.
Equipment. The equipment presently in use
is a GE Master II commercial solid-state repeater,
with a receiver having approximately 0.18 uV
sensitivity for 20 db quieting, and a 60 watt
output transmitter which produces a maximum
effective radiated power of 130 watts from the
antenna. The typical usable range to a 10-watt
mobile rig is 40 miles
Antenna System. The antenna is a Tri-Band fiberglass-covered collinear, being fed by 7/8
inch foam dielectric, solid aluminum jacketed
hard-line. The repeater uses a Phelps-Dodge 6
cavity duplexer to allow simultaneous transmission
and reception on a single antenna (full-duplex
operation). The duplexer provides under 1 dB of
insertion loss while maintaining more than 120 dB
of isolation between transmitter and receiver.
Timeout: The "you talked too
long" timeout is 90 seconds.
Reset: The system timeout timer resets when
the input signal ceases for at least 1 sec, which
is indicated by a 15 ms tone burst.
Dropout Delay. The transmitter drops out
after an input signal has been absent for 3.5
Autopatch. This machine has autopatch - please contact the station
manager for information on how to use it.