Welcome to CORA (Cactus Open Repeater Association). CORA is an amateur radio system, boasting a large RF footprint of linked analog VHF and UHF repeaters throughout San Diego and Imperial County. CORA is open to all licensed amateur radio operators and does not require membership or dues. CORA is designed for both the entry level and experienced ham radio operator; therefore, we encourage operators who enjoy a diverse level of amateur radio dialog.
In addition to our analog system, CORA also enjoys a relationship with both Western States DMR and the Arizona Turbo Network. Both of these digital systems provide CORA with its own DMR talk-group (#8850), covering most of southern California, as well as central and northern Arizona. DMR information can be found by clicking on the link at the bottom of this page.
With broad coverage and multiple repeaters linked together, there are numerous points where you can make your way into the system. We encourage you to program our frequency list (below) into your radio and become “radio” active. Please note, some interference issues have been traced to folks using crossband repeaters; therefore, please do not crossband repeat or utilize “hot spots” to access the system.
Lastly, Allstar and Echo Link nodes are available for use when you find yourself outside our coverage area. The Allstar link node is 54697. The Echo link node is AF6BY-R.
Below are list of CORA repeaters and their general location. If you would like additional information on a particular repeater, please click on this link:
CORA analog and P25 repeaters.
Mount Woodson. 145.180 – (107.2) North SD County
El Cajon. 449.900 -(131.8) East SD County
Alpine. 446.420 -(107.2) East SD County
Mount Laguna UHF. 449.580 -(107.2) East SD County
Mount Laguna VHF. 145.120 -(107.2) East SD County
*Black Mtn West. 448.960 -(107.2) SD County*
Black Mtn East. 448.960 -(107.2) Imperial County
*Mt Miguel. 447.580 -(107.2) South SD County*
Rainbow Ridge UHF. 449.900 -(107.2) North SD County
Rainbow Ridge VHF. 147.000 +(136.5) (Repeater Transmits PL 100)
* Blk Mtn West & Miguel are both P25 also. RX NAC 656 & TX NAC 526*
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