At 09:09 PM 02/07/10, you wrote: >Hello All, >Has anyone connected a repeater controller such as a Arcom RC-210 or >a Link-Comm RLC Series to an E&M interface to link two or more sites together?
Not those specific controllers, but I have done others. >I am looking for ideas and any pit falls that you may have had in >the setup and configuration. The E&M hardware can be configured in more ways that you can imagine. Almost any combination of -48v and ground can be used on the I/O leads. Sometimes you can configure it to meet your needs, sometimes you can't. On one system I was able to set it up for a floating signal pulled to ground for the M lead (PTT) with a open collector transistor, and a floating signal pulled to ground for the E lead (COR). On another the E lead fed -48 on idle and ground for active so I had to use a reed relay for the COR pin interface. The M lead was at -48 when idle and I had to pull it to ground to make it active, so I used a reed relay on the repeater controller PTT with the contacts feeding the M Lead. So sit down with the manual for the equipment and study, study and take notes. As an aside, the major local power utility here in SoCal is Southern California Edison, and they are supportive of the 220 repeaters put up by the in-house ham club - EARN - Edison Amateur Radio Network (W6SCE). They have a linked 220 system that uses spare channels on the corporate microwave for the interlinks. See <www.w6sce.org> and click on "Frequencies" on the top margin. And no, Musick is not misspelled, that's the actual name of a radio site. >Thanks, >Joe - WA7JAW Mike WA6ILQ
