Ray, I agree that Samlex makes some very high-quality equipment, but the specific converter you cited is clearly non-isolated. Since most CO and cellular equipment is designed to operate with a positive ground, some serious fireworks will occur if a negative-ground radio is powered from -24 or -48 VDC through a non-isolated converter.
73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of K6PNG Sent: Friday, February 12, 2010 5:48 PM To: [email protected] Subject: Re: [Repeater-Builder] 24vdc to 12 vdc converters This should fix you up. 73 Ray K6PNG http://www.samlexamerica.com/products/productdescription.asp?ProductsID=6004 2 <http://www.samlexamerica.com/products/productdescription.asp?ProductsID=600 42> James Adkins wrote: > > > We have a site that we'd like to run our repeater off the cell phone > company's 24vdc power plant, and need a continuous duty inverter to > transfer 24vdc to 12vdc. > > > It's a Motorola Micor, and we have a couple of link radios as well, > total current draw about 40-45a when they're all fired up. > > Anyone have any suggestions? > > -- > James Adkins, KB0NHX > Vice-President -- Nixa Amateur Radio Club, Inc. (KC0LUN) > www.nixahams.net <http://www.nixahams.net <http://www.nixahams.net> > >
