Hi All On Mike Morris's suggestion here is an experience using the ID-O-Matic identifier from Hamgadgets.
This is a $20.00 + ($2.67 shipping) kit that can be assembled in about 30 minutes including reading the instructions. I would say anyone who has interfaced a repeater would not have any trouble using this CW identifier. It is using a PIC16F648A PIC (Programmable Integrated Circuit). It is preprogrammed to interface via the 9 pin COMM port on your computer using the Hypr Terminal or in my case Procomm. My application was to identify a UHF GE MPV link transmitter. The identifier START "COS" is low true so you may have to invert a high true COS line from you repeater. The audio output is a square wave, as they state, so it would be wise to use a fairly low tone like 400 Hz and roll off the high frequencies of the sharp wavefront square wave (10k and a 0.1 uF followed by what ever resistance it takes to the microphone input) did it for me. PTT is a Vmos 60V FET which is negative true and will "or" with most PTT logic. Be very careful to use the scope on your IFR or at least multiply any deviation meter reading by two. This is a differentiated wave form. I used 1 kHz deviation just in case it did identify over someone speaking. Sort of to the side, I used the repeater COS to enable the CTCSS on the MVP. This will prevent the ID from being repeated for the others on the linked system. I suppose like most products your own application has peculiar needs. I wish the identifier had a sine wave output. The ID sounds more like a buzzer than the nice tones of an ACC 850 but since users of our system don't hear the ID it makes little difference. The other comment would be to supply pins to put in the PC board holes so you could mate connectors or have posts to solder to from the component side. Dale N0XAS is the only one marketing this product that I could see and he is great to work with if needed. All in all I think this is a neat ID solution. Sure beats diode matrix ID boards! http://www.hamgadgets.com/product_info.php?products_id=64 Gran K6RIF Gran K6RIF
