<div dir="auto"><a href="https://forums.radioreference.com/motorola-forum/179932-motorola-vrm-650-a.html">https://forums.radioreference.com/motorola-forum/179932-motorola-vrm-650-a.html</a></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Sep 24, 2018, 12:06 radio nn4qq <<a href="mailto:radio.nn4qq@gmail.com">radio.nn4qq@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr">This EBAY post includes a few pictures<div><br></div><div><a href="https://www.ebay.com/p/Motorola-VRM-650-Data-Mobile-Radio-F3454a-VRM650/1311778416" target="_blank" rel="noreferrer">https://www.ebay.com/p/Motorola-VRM-650-Data-Mobile-Radio-F3454a-VRM650/1311778416</a> <br></div><div><br></div><div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Sep 24, 2018 at 2:48 PM Ross Whenmouth <<a href="mailto:ross@topwire.co.nz" target="_blank" rel="noreferrer">ross@topwire.co.nz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div class="m_-8062182289205637355m_8840838931357952499moz-cite-prefix">The VRM650 is an RD-LAP machine,
configured ex-factory for either 9.6 or 19.2 kbps (12.5 or 25 kHz
channelisation respectively).<br>
I don't know enough about RD-LAP, but presumably, you will be able
to encapsulate AX.25 packets inside of RD-LAP packets?<br>
<br>
If the amateur community gets enough of these radios to make it
worth while, it is probably within the realms of feasibility (with
considerable effort) to reverse engineer the VRM650 and write a
"ham" firmware for it "from scratch" which speaks AX.25 (and
doesn't have copyright issues with Motorola service software)<br>
<br>
73<br>
Ross Whenmouth ZL2WRW<br>
<br>
</div>
<blockquote type="cite">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Apparently
the </span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Motorola
VRM650 UHF data radio should be available for almost free by
the hundreds.</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">These are Motorola VRM650 modems which I
think are a 40 Watt MCS2000 radio with a different faceplate and
only a DB9 rs232 port.</p>
</blockquote>
<br>
</div>
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