Repeaters

W6BHZ maintains cross-linked repeaters on 2 meters and 70 centimeters. Both repeaters are located in the Administration Building on the Cal Poly campus. The 2 meter repeater is a Kenwood TKR-750, installed in September 2004. The 70 centimeter repeater is a Kenwood TKR-850, and it was installed in June 2004.

The DMR Hotspot is a Raspberry Pi running Pi-Star, and was installed January 2019. It has limited range, and is most accessible from the Shack and Courtyard. The hotspot allows connections to the BrandMeister global DMR network using a simplex frequency of 447.500 MHz, CC 1, TS 2. To contact CPARC members on the BrandMeister network, please use the (unofficial) CPARC Talkgroup 3127910. Information on the local K6DOA DMR repeater can be found here.

Repeater List:

ModeBandFrequencyOffsetPL Tone (Hz)StatusLocation
FM2 meters (VHF)146.760 MHz-600KHz91.5 in, 127.3 outOperationalAdministration Building
FM70 centimeters (UHF)442.300 MHz+5MHz127.3OperationalAdministration Building
DMR70 centimeters (UHF)447.50 MHz  OperationalCPARC Shack, Bldg 20, Rm 123

W6BHZ Repeater GPS Coordinates: 35.301314 N, 120.658565 W

Repeater Coverage Maps:

Repeater coverage maps courtesy of K5EHX and KD2BD. Interactive maps can be found here for UHF and here for VHF.

System Diagram

Power

Power comes from a large 13.8V 100A 3-stage power supply used to power all of the public safety radios up at the site. Also connected to the power supply is 800AH of batteries used for when the AC goes offline. The entire building is backed up with a generator.

Pictures: