<div dir="ltr">I was thinking of DSTAR (Icom), and C4FM (Yaesu), but now I see that DMR (Motorola) is also competitive in the amateur market.<div><br></div><div>It is a bad situation. There are some proprietary patent encumbered voice codecs in use as well (at least in DSTAR) to complicate matters further.</div><div><br></div><div>In *THEORY* DSTAR is an open standard developed by the Japanese amateur radio community, but the only working implementation AFAIK is Icom.</div><div><br></div><div>Frankly, I would just avoid digital VHF/UHF.</div><div><br></div><div>-braddock</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jun 29, 2015 at 3:49 PM, yoshio <span dir="ltr"><<a href="mailto:ak209@lafn.org" target="_blank">ak209@lafn.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Mon, Jun 29, 2015 at 03:00:23PM -0700, Tux Lab wrote:<br>
> Does that mean each vendor has it's own digital implimentation<br>
> standard so digital radio from one vendor may not be able to use the<br>
> digital repeater from another vendor?<br>
<br>
</span>Yes. Oh, Motorola has DMR (which they call MOTOTRBO):<br>
<a href="https://en.wikipedia.org/wiki/Digital_mobile_radio" rel="noreferrer" target="_blank">https://en.wikipedia.org/wiki/Digital_mobile_radio</a><br>
<br>
There<br>
<a href="https://en.wikipedia.org/wiki/NXDN" rel="noreferrer" target="_blank">https://en.wikipedia.org/wiki/NXDN</a><br>
Kenwood has their own version of DMR, NEXEDGE.<br>
<br>
I didn't know there were DMR repeaters in SoCal:<br>
<a href="https://www.repeaterbook.com/repeaters/FeatureSearch.php?state_id=06&type=MOTOTRBO" rel="noreferrer" target="_blank">https://www.repeaterbook.com/repeaters/FeatureSearch.php?state_id=06&type=MOTOTRBO</a><br>
(Search term was "dmr repeater ham southern california") using<br>
<a href="https://duckduckgo.com/" rel="noreferrer" target="_blank">https://duckduckgo.com/</a> )<br>
<br>
</blockquote></div><br></div>