[Allstar Digital] MMDVM Lessons learned so far.

[Corey Dean]

So I am assuming a wide band transmitter instead of narrow?

Sent from my iPhone

> On Jan 9, 2016, at 5:47 PM, Steve Zingman <szingman at msgstor.com> wrote:
> 
> Mike and I have been working with the MMDVM and the Home Brew Repeater code for a couple of weeks.
> It's very early in the process and I think that unless you like to try to hit at least 3 moving targets, I suggest people wait. The MMDVM is a  Arduino  Due and a small analog board. The modem firmware runs on the Due. The analog board does some filtering and level control. We are running a early prototype board from Jim KI6ZUM. Jim has some new boards in the works, so right now waiting or build your own is the only choice.
> 
> The software is early and buggy, as any new software is. Jonathan G4KLX has done a phenomenal job so far and it only will get better. The test software ONLY works in duplex mode, which is a problem because if your transmit data is not right, you will not get too far with receive. Kind of a catch 22. Jonathan G4KLX says that the deviation should be 3.88 KHz. So on my IFR 1200S that works out to a hair under 4KHz. (analog meter). Now that we have the transmit working OK, not great but OK, we will start on receiver.
> 
> More to follow.
> 
> For INAD, Steve N4IRS
> -- 
> "Anything is possible if you don't know what you are talking about."
> 1st Law of Logic
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