448.900 / 443.900
(118.8 or 77.0 Hz Required)
(Trustee = K9YDO)
(70 CM)


( 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.
ERP 100 Watts

(Click on Pics to Enlarge)

                        444.125front.JPG (237833 bytes)                     

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)






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