At 01:23 PM 05/31/07, you wrote: >Does anyone know of a software program that will take discriminator >audio and display the DCS (or, optionally, CTCSS) being used? If not, >can someone point me to the technical specification for DCS? (I know >it's approximately 131 baud, sub-audible, occupying 2-300 Hz, but >that's all I could find...) Maybe I can get my son to write such a >program.... > >George
Order Moto manual 68-81106E83 if it's still available... its a no-charge technical overview of DPL published back in the days when DPL was brand new.. See the Moto page at www.repeater-builder.com for Moto's order 800 number. The DCS decode function is common in many scanners. It may be more cost effective to acquire the most inexpensive scanner that has that feature... A real handy box that I've not seen and I wish someone would sell is something that you could feed discriminator audio to and display the currently heard DTMF string, DPL or tone PL. An enhancement to the DPL / tone PL display function would be a storage feature so I could park it and a receiver (i.e. a 18ah gell cell, a Maxtrac or a scanner, an antenna and this box) on a hilltop and a week later it would tell me what tones/codes are in use on a particular channel. Mike WA6ILQ
