Hi Mike, >I'd like to see a controller that has enough in it that all you need to interface >to is discriminator audio and modulator audio. On the receive side it could >have a Micor-type squelch and a de-emphasis network built with 1% parts. >On the transmit side it has pre-emphasis and feeds the modulator directly.
So that's one vote for running pre-emphasized audio throughout the controller. To do that, all receivers must provide discriminator audio, and the controller's internal tone generation and digital audio playback must have pre-emphasis. The DTMF decoders must have de-emphasis. Any autopatch would need de-emphasis on the outgoing audio and pre-emphasis on the incoming audio. Am I missing anything? 73, Bob ________________________________________________________________________ AOL now offers free email to everyone. Find out more about what's free from AOL at AOL.com. =0
