Advanced Description of 145.270

Advanced Description of the 145.270- KQ3M Repeater
Located high atop Allegheny Mountain at the Hay's Mill Fire Tower and Ground Cabin

Click here for pictures of the Hay's Mill Fire Tower site

Antenna Site Ground Elevation is 2920 feet AMSL.
Antenna Height Above Ground Level is 85 feet to center of array.
Antenna Height Above Mean Sea Level is 3005 feet.
Antenna Height Above Average Terrain is 750 feet.
This Repeater is a rebuilt Motorola Micor paging station converted to duplex repeater service.
Transmitter Amplifier is a General Electric 4EF5A1 330 watt continuous duty tube type station amplifier.
Actual Transmitter Power is 250 watts into the duplexer as measured with Bird Wattmeter.
Permanent Inline Bird Wattmeter with samplers at the exciter output, amplifier output, and duplexer output.
Battery Backup with 110 watt solid state Motorola Micor continuous duty station amplifier.
Duplexer is a Wacom BpBr WP-641 with 93 db isolation between Tx & Rx ports.
Receiver Preamplifier is a Motorola Micor highband preamp converted to ham band.
Actual Duplex Receive Sensitivity is .12 uV @ 12 db Sinad as measured with IFR 1200A
Antenna System is a Sinclair SRL-229 6.1 dbd fiberglass omnidirectional phased array.
Antenna is equipped with a Static Buster precipitation static arrestor.
Controller is an Advanced Computer Controls (ACC) RC-96 firmware version 5.2
Frequency Agile Remote Base system is ACC FC-900 Interface with ICOM band modules.
Remote Base Bands include 10M 6M 2M 1.25M & 70 CM.
10 meter remote base amplifier is home-brew 8950 (tube) running about 100 watts.
10 meter remote antenna is A.S. "Starduster" CB antenna cut for 10 FM.
Digital Voice Recorder from Advanced Computer Controls.
Disparity Voting System is a Home Built 4 Channel voting system, made from multiple 2 channel boards.
Satellite Linkback Receivers are 3 Hamtronics R-451 UHF crystal controlled receivers.
Satellite Receiver Sites are Hamtronics R-144 feeding modified Hamtronics TA-451. PL 123.0~
Satellite Sites in Bedford PA, Somerset PA & Cumberland MD.
Transmission Hardline is 120' of CommScope Quantum Reach .860 (7/8" 75 ohm catv cable)
75 ohm to 50 ohm Line Transitions are Repeater Builder Matching Stubs.

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