Hi Bryan! Any chance you will have a P25 repeater available? Timeframe? Thanks, Larry WA7LZO

Larry, Repeater operation, the SHORT answer. Repeaters require full-duplex operation. NW Digital Radio is planning on releasing a Full Duplex Radio sometime next year pending response of our initial

> The UDR56K has the ability to support many protocols in software, limited only by modulation type, data rate and other ait interface limitations like TDMA. Is it capable of the 1.5 msec full tx

That’s on the mobile side. BS is constant carrier even for empty timeslots. Format is TS1 – CACH – TS2 – CACH repeated.

I was just thinking of 2 units to do P25 with!

Not sure if any of you have seen this: http://wiki.radioreference.com/index.php/Digital_Speech_Decoder_%28software_ package%29 Linux Based Decoder Software that supports: • P25 Phase 1 •

I am familiar with the package -- NW Digital Radio would not be inclined to directly support it, due to the following: Patent Issues with mbelib While DSD was intended to be patent-free, mbelib

But you said you would be using the AMBE Vocoder 3000? Which would not require the use of mbelib at all.

Considering 3000, yes. P25 - IMBE P25 Phase 2 - AMBE I don't think the 3000 does IMBE. John D. Hays K7VE PO Box 1223, Edmonds, WA 98020-1223

But... No transmit... I have seen it before, and its cool... For unlicensed folk who like to listen to police scanners. But I want to talk... and for that, I need the other half of the

Well, if you don’t know how to “generate” data stream, decoding it is the first hurdle. Ie, when “dstar” first came into light, ICOM didn’t freely publish the TCP/IP stack, it had to

I haven't verified it, but it should be possible. Bryan

Keep in mind that P25 II TDMA is only capable of network repeater operation (read that "trunked"). Simplex is not supported on Phase II, as there is no way to accomplish the sync requirement for 2

The PAPA System (http://www.papasys.com/) has invited me to participate on their net this Thursday on D-PLUS REF012C at 8PM Pacific (0300Z). Apparently there is a lot of discussion about the UDR56K

Seeing that P25 Phase 2 is almost the same as DMR, how do they do it?! Phase 2 will do the same as DMR, use time slot 1 only on simplex. It will work, just only one time slot - one user at a time.

The 3000 does support P25 P1 and P2, and DMR per there web site. The 3003 will also support the dPMR (the protocol that the new Yaesu radio is using) AMBE+2 and beond are said to be backwards

Here is the manual for the AMBE 3000 (the 3003 is the same but with three vocoder paths) -- http://www.dvsinc.com/manuals/AMBE-3000_manual.pdf On page 84 see the footnotes. The marketing literature

I'll try to check in using my IC-91A via the W8TEN node here, but I can't promise I won't fall asleep durig the net (or before). I will probably be on that net the Thursday before Field Day (the 21)

In less than 3 weeks we have exceeded 300 members on the list. It's gratifying to see the interest in this new radio and the great ideas and comments coming to the list. Keep those creative juices

This is a quick screen shot of what the interface for winlink mail looks like. There will be more detail in the upcoming app note on the website. Let's walk thru it. When I sit at my home station