BeachNet Repeater System

BeachNet Repeater System

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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Grays River

Wahkiakum County, WA
46.344024, -123.503966
970 Feet
Call: NM7R

147.020  +600kHz  118.8Hz


Grays River VHF Repeater

Location: The Grays River repeater is located near the crest of KM Hill about half-way between Naselle, WA, and Cathlamet, WA, on Highway 4 in Wahkiakum County. KM Hill is the highest point on Highway 4 between Longview, WA and the Coast, dividing the county roughly in half.

Coverage: Also called the "KM Hill" or just "KM" repeater, it provides coverage to nearly all of Wahkiakum County, and west along Hwy 4 into Naselle. On the Oregon side of the Columbia River, it fills in coverage along Highway 30 between Bradley Summit and Clatskanie, OR.

Remote Receiver: There is (as of May, 2010) a remote receiver in the vicinity of Cathlamet, WA, to provide hand-held coverage in this city. Shifting your PL tone to 110.9 Hz allows your signal to be picked up on the local receiver and relayed into the network. Using the 118.8 Hz PL tone routes your signal through the main repeater receiver at the KM Hill site. For more information on the Cathlamet receiver, Click here.

Normally linked to the rest of
BeachNet, this machine can be separated to operate stand-alone or linked to the 444.500 Nicolai repeater, as desired for ARES/RACES operations in Wahkiakum County. It provides a link to the State ECC at Camp Murray, through the network, and acts as a focus for Emergency Communications in this rural county.

There is no generator power at the site, so the back-up is provided in the form of two deep-cycle 90-AH batteries. The repeater announces when it is operating on emergency power to advise users, and automatically reduces the repeater output power by about 6dB to conserve the batteries. If desired, a control operator can remotely switch between high and low power as the situation warrants.

Hardware: The repeater consists of a GE Mastr-II 110-watt continuous-duty base station. The transmitter signal passes through one BpBr cavity and a bandpass cavity, and then feeds a Diamond dual-band antenna at the 65-foot level on the tower which serves the transmitter and the UHF link. This antenna is fed with LDF4-50, half-inch hardline. The receive antenna is a high-gain Stationmaster at the top of the 90-foot tower, fed with LDF5-50 7/8-inch hardline, with a single BpBr cavity. The two-antenna system allows optimal receiver performance with less than 1 dB combined loss. If you can hear this repeater, you can probably work it.

Packet Radio: The "KMHILL" packet radio node is located on this site as well. This is part of the 145.630 MHz 1200-Baud Washington District Three EOC Packet Network. The purpose of this node is to provide a link between the western portion of the county and the county seat in the eastern part.

Web Cam: for a look at the road conditions on Hwy 4, right outside the turn off 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: 02/09/13.