Welcome to our 2-meter repeater information page
K3HKI
The St. Mary's County Amateur Radio Association built a 2-meter amateur radio FM repeater that has been continuously operating for over thirty years. Complete information about this repeater system is included below. If you have an interest in assisting our technical team with maintaining and upgrading this capability, please give Pete (WA3UMY) a call or click [ here ] to send him a message and volunteer!
Repeater technical data:
Frequency output = 146.640 MHz
Frequency input = 146.040 MHz
Carrier access (no PL or sub-audible tones required to access)
Location: Hermanville, Maryland (2.5 miles south of Lexington Park, Maryland)
Antenna: Celwave Super-StationMaster 5.2 dBd gain vertical fed with Andrews 7/8" Heliax
Antenna height: 140' AGL (265' AMSL)
Repeater: Motorola MSR-2000
Controller: Advanced Computer Controls RC-850
Duplexer: Celwave (6 cavities)
View of the concrete equipment shelter at the repeater site
View looking up the 150' tower from the front gate
Side view of the tower showing the side-mounted repeater antenna at the 150' level
Closer view of the side-mounted Celwave Super-StationMaster antenna
View of the repeater (left cabinet), RC-850 controller (on top), and duplexer cabinet (right)
Closer view of repeater showing detail of antenna feed line and grounding bar
View with cabinet covers removed
Internal view of duplexer cabinet showing the
6-cavity Celwave duplexer 'cans' and Bird wattmeter panel
View of the repeater cabinet with front cover removed
(Note: All pictures were taken on Tuesday, 6 May 2008 when the repeater controller was replaced)
Copyright © 2003-2008,
St. Mary's County Amateur Radio Association
All
rights reserved.