448.900 / 443.900
(118.8 or 77.0 Hz Required)
(Trustee = K9YDO)
( lat: 40.015117 / lon: -85.982744 )
|Equipment||Uniden = Receiver w/pre-amp & GE = Exciter|
|Antenna||2 = Celwave (Super Stationmaster PD455) - (12 dBi Gain)|
|Controller||Micro Computer Concepts|
|Duplexers||TX-RX Systems (T-Pass Combiner System)|
|Rec. Pass-Cavity||2 = TX-RX Systems (Cavity Filters)|
|Receiver Sensitivity||.17uv (thru all hardware for 12dB Sinad)|
|Transmitter Output||Motorola PA Deck=85 Watts (55 Watts into Feed Line)|
|Feed Line||1 1/4" & 1 5/8" Hard Line|
|Antenna HAAT||300 ft.|
(Click on Pics to Enlarge)
The 443.900 repeater has now been put back into operation as of Mar. 2007 in Noblesville, IN. It now utilizes a split antenna set-up which combines it with a multi-channel UHF trunking system. One antenna is used for 7 receivers and another for 7 transmitters. The receiver antenna is connected via 1 5/8" hard-line to a multi-coupler that feeds all the receivers & the transmit antenna is connected via 7/8" hard-line thru a combiner system for all the transmitters. The receiver is made from a Uniden business mobile radio board that has been fitted into a 19" rack mount cabinet along with a pre-amp and tone control boards and the transmitter exciter is a Icom business mobile radio. A Motorola RF amplifier deck completes the package to give us around 110 watts output into the combiner unit.
The repeater transmits a 77.0 Hz CTCSS tone ONLY during an incoming received signal. No reset tones or ID's will be heard if your radio is setup to decode this tone unless ID happens during a QSO.
This repeater is also a
part of our 900 Mhz system providing connectivity of both the 900 repeaters and
the 2 remote receiver sites.
(900MHz Repeater System)