BeachNet Repeater System

BeachNet Repeaters by Frequency

Pacific, Grays Harbor, Lewis, Mason, Thurston & Wahkiakum Counties, Washington

145.170 |  145.310 |  145.390 |  147.020 |  147.180 |  147.340 |  224.040 |  224.820 |  440.675 |  441.675 |  442.675 |  444.050 |  444.200 |  444.400 |  444.500 |  444.700 |  444.800 |  444.925 |  444.950
 

 

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Cosmopolis

Grays Harbor County, WA
46.935144, -123.739014
550 Feet
Call: W7EOC

145.390  -600kHz  118.8Hz


Cosmopolis VHF Repeater


During April, 2014, the Cosi
repeater will be undergoing
a major refit, during which
the station may be off-air
intermittently.

Thank you for your patience
and understanding.

Location: Overlooking Cosmopolis, WA, from near the crest of Cosmopolis Hill, on Highway 101, about 2 miles north of the Hwy 107, "Montesano Cutoff", Juction.

Coverage: The "Cosi" Repeater covers the Aberdeen/Hoquiam area of Grays Harbor County from Ocean Shores on the west, to Elma on the east. In addition, the coverage follows Highway 101 south to the Pacific County border.

One constraint on this site is the landlord's requirement that the entire station be mounted to the back wall and not stick out more than a foot. Doyle, N7UJK, installed and painted a sheet of chip-board as a foundation, and all components were secured to this. The Wacom 5-inch BpBr duplexer sticks out 11-inches, and the rest of the gear is well within our one-foot allowance. Since we installed the repeater, the tiny shack has filled up with other equipment. We are lucky to have this site, and living within the one-foot space requirement is a modest concession.

During an emergency, this repeater will probably be disconnected from the network, to provide intra-county communications support. The link is capable of connecting the Cosi repeater to the Neilton, Minot or Olympia sites, to enhance communications within Grays Harbor County. This repeater is directly accessible from the Grays Harbor EOC in Montesano.

Hardware: The repeater is based on a 100-watt GE Mastr-II mobile chassis, duplex-converted and running 40-watts output. The controller is a CAT-200B in a Radio Shack metal box with basic controls mounted on one side. A local speaker provides test audio when desired. The link to
BeachNet is provided by a GE Rangr UHF mobile, running 10-watts. A pair of fans circulates air across the power supply and repeater heatsinks to keep things cool. The Hustler G6-270 antenna, shared between the repeater and link radio, is mounted above a microwave dish well up the tower, and fed with 150-feet of LDF5-50 7/8-inch hardline through a diplexer. The repeater signal passes through a VHF DCI filter to attenuate the high level of broadcast RF at this site.

Web Cam: for a look at the road conditions on Hwy 101, right outside the gate to the site access road, Click Here for the WSDOT traffic cam.

 

 

 

 




 

145.170 |  145.310 |  145.390 |  147.020 |  147.180 |  147.340 |  224.040 |  224.820 |  440.675 |  441.675 |  442.675 |  444.050 |  444.200 |  444.400 |  444.500 |  444.700 |  444.800 |  444.925 |  444.950
 

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This Page Last Updated: 04/06/13.