Location: Approximately 2 miles west of Scituate Harbor, Massachusetts. Transmiter: Yaesu FT 2600 (Top Unit) Receiver: Micro Control Specialties MR4 (Just below Transmitter) Controller: RC100 (Bottom Unit) Duplexors: Wacomm Antenna: Hy Gain G7-144 Antenna height: 75 feet above ground (160 feet above sea level) Transmission Line: 7/8 inch Heliax Power Supply: Astron with battery back up. Receiver Preamp:Down East Microwave DEM 2MLNA Noise Figure < .7 dB Repeater Power Output after the duplexors: 40 watts Repeater Receiver Sensitivity: .18 uv at 12 dB SINDAD IRLP Node:432 IRLP Box: 200 Mhz Pentium running Linux. Cable connection: Cable Modem.
Coverage area of the 145.39 repeater
Legend: Green denotes the mobile coverage and orange the base station coverage. These areas are the 90% coverage areas. In other words 90% of the locations in these areas are covered by the repeater. Base stations are assumed with gain antennas and height above ground of the antenna of 50 feet. Power output is assumed at 50 watts. Better systems will increase the range.
Last edited on December 15, 2002