Certain NHRC controllers will function as a simplex controller, but you will need a control opertor to be FCC legal.
Radio Shack also made a simplex controller no frills controller in the $60 range. On 5/19/05, Joe Jarrett <[EMAIL PROTECTED]> wrote: > > The frequency response of a 2 way communications system is well within the > frequency response of one of the 8 KHz sample rate ChipCorders. The only > decision would be to select the longest possible message time. The ISD1416 > gets you 16 seconds, the ISD2560 gets you 60 seconds. Both of these are > probably available through Digikey. > > Joe Jarrett K5FOG > > *********** REPLY SEPARATOR *********** > > On 5/19/2005 at 7:45 AM Don Pomplun wrote: > I wonder if those ISD audio record/playback chips are a reasonable approach > for a simplex repeater. (I know there are those who insist on FM Broadcast > quality, but for communication in a noisy environment like a railroad, it > doesn't seem an issue). > 73, > Don > > > > > > > > > > > > > > ________________________________ > Yahoo! Groups Links > > > To visit your group on the web, go to: > http://groups.yahoo.com/group/Repeater-Builder/ > > To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
