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<p class="MsoNormal"><span style="font-size:11.0pt">Dear CCSDS Standards community,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Please excuse the SPAM, I am sending this out rather widely in order to make sure that all of us who might have a concern are aware of this new standard.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">This is an effort to create an update of the earlier IEEE
</span><span style="font-size:11.0pt;color:#202020;background:white">digital IF/RF<span class="apple-converted-space"> standard called VITA 49. I know that this is in use in a number of RF to IF interfaces and it is worthy of being reviewed and commented upon.
From the CCSDS point of view this is usually somewhat orthogonal to our normal interests, since it is effectively an implementation approach for shipping digitized RF around in terrestrial systems. But it is being touted as an interoperability spec, and so
I thought that we might take a look at it and provide what useful feedback we can.<o:p></o:p></span></span></p>
<p class="MsoNormal"><span class="apple-converted-space"><span style="font-size:11.0pt;color:#202020;background:white"><o:p> </o:p></span></span></p>
<p class="MsoNormal"><span class="apple-converted-space"><span style="font-size:11.0pt;color:#202020;background:white">I downloaded it and attached it here for your convenience. It’s an open call for feedback, so send it to any colleagues who may have informed
opinions or use for it. Feel free to review, and if you have feedback, to register and comment.<o:p></o:p></span></span></p>
<p class="MsoNormal"><span class="apple-converted-space"><span style="font-size:11.0pt;color:#202020;background:white"><o:p> </o:p></span></span></p>
<p class="MsoNormal"><span class="apple-converted-space"><span style="font-size:11.0pt;color:#202020;background:white">Best regards, Peter<o:p></o:p></span></span></p>
<p class="MsoNormal"><span class="apple-converted-space"><span style="font-size:11.0pt;color:#202020;background:white"><o:p> </o:p></span></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Peter Shames</span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Consultative Committee for Space Data Systems (CCSDS)</span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Systems Engineering Area Director</span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Jet Propulsion Laboratory / Interplanetary Network Directorate</span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">4800 Oak Grove Drive</span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">MS 301-490</span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Pasadena, CA 91109</span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> </span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="mailto:peter.m.shames@jpl.nasa.gov" title="mailto:peter.m.shames@jpl.nasa.gov"><span style="color:#0563C1">peter.m.shames@jpl.nasa.gov</span></a></span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">C: 818-687-7901</span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="https://urldefense.us/v3/__https:/cwe.ccsds.org/sea/default.aspx__;!!PvBDto6Hs4WbVuu7!fgncIVD-iu0I_1xWlmq78lUqf1aK_WZzB2gUhx7cfOlLefMQluIGVhXTKIrzYkYoUsYraXcV$" title="https://urldefense.us/v3/__https:/cwe.ccsds.org/sea/default.aspx__;!!PvBDto6Hs4WbVuu7!fgncIVD-iu0I_1xWlmq78lUqf1aK_WZzB2gUhx7cfOlLefMQluIGVhXTKIrzYkYoUsYraXcV$"><span style="color:#0563C1">https://cwe.ccsds.org/sea/default.aspx</span></a></span><span style="font-size:11.0pt;color:#212121"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#212121"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="color:black">From:
</span></b><span style="color:black">Joan <j.sterlacci@ieee.org><br>
<b>Date: </b>Thursday, May 23, 2024 at 6:59</span><span style="font-family:"Arial",sans-serif;color:black"> </span><span style="color:black">AM<br>
<b>To: </b>Shames, Peter M (US 312B) <peter.m.shames@jpl.nasa.gov><br>
<b>Subject: </b>[EXTERNAL] DIFI Announces PlugFest 2024 Europe, June 17-21<o:p></o:p></span></p>
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<p class="MsoNormal"><span class="mcnpreviewtext"><span style="font-size:1.0pt">Digital Intermediate Frequency Interoperability Consortium</span></span>
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<h1><span style="font-size:22.0pt;line-height:125%;color:#660033">DIFI Announces PlugFest 2024 Europe, June 17-21</span><span style="font-size:22.0pt;line-height:125%"><o:p></o:p></span></h1>
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<span style="font-family:Helvetica;color:#202020">UK Satellite Applications Catapult’s Harwell Campus will be the site of the second DIFI PlugFest! This first-ever DIFI event in Europe is being organized by founding member
<strong><span style="font-family:Helvetica">ETL Systems</span></strong>. The PlugFest, which will include companies testing digital operability of ground segment technology using the DIFI Standard, begins on Monday, June 17 and will run through Friday, June
21.<o:p></o:p></span></p>
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<span style="font-family:Helvetica;color:#202020">In the afternoon on Thursday, June 20, the PlugFest will feature a
<strong><span style="font-family:Helvetica">Showcase</span></strong>, including a keynote, panel session, demonstrations and discussions with the companies testing the interoperability of their products. The Showcase is open to all, including non-members. Before
the Showcase, the event is restricted to DIFI members bringing equipment to be tested.<o:p></o:p></span></p>
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</v:shape><![endif]--><![if !vml]><img width="310" height="211" style="width:3.2291in;height:2.1979in" src="https://mcusercontent.com/d85ee1c54ab272a5870de07eb/images/14d6039e-7b02-5d54-63fa-fe9d20112575.png" align="right" v:shapes="_x0000_s2051"><![endif]><span style="font-family:Helvetica;color:#202020">During
the last PlugFest, hosted by <strong><span style="font-family:Helvetica">Kratos Defense & Security Solutions</span></strong> in Colorado Springs, USA, 25 engineers tested 13 vendor technologies at the 1.1 standard level. Nearly 90% of the planned interoperability
tests were successful, proving the core functionality of the DIFI Standard in providing interoperability among different vendor systems. During the UK event, the goal is to test compatibility for products at the 1.1 and the new 1.2 level.<o:p></o:p></span></p>
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<span style="font-family:Helvetica;color:#202020">DIFI’s Chairman and Kratos’ Vice President of Advance Technology Stuart Daughtridge noted that, during the last PlugFest, the test profiles ranged from low to high sample rates with low to high bit depths –
specifically, from 12.5 Msamples/sec at a bit depth of 16 bits per sample, up to 750 Msamples/sec at a bit depth of 6 bits. “We expect this PlugFest to be as rigorous and productive for our members,” he added. “It will also provide more opportunities for engagement
with the Showcase and networking to follow.”<o:p></o:p></span></p>
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<span style="font-family:Helvetica;color:#202020">Simon Swift, Engineering Director for Digital Technologies with ETL Systems, the host organization for the event added, “We are very proud to bring this PlugFest to the UK and Europe. Our members here and internationally
are keenly interested in interoperability as a means of continuing the innovations that are taking place at teleports and the ground segment of the satellite industry.”<o:p></o:p></span></p>
<h2><span style="color:#013763">Registration Information</span><span style="color:#013763"><o:p></o:p></span></h2>
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<span style="font-family:Helvetica;color:#202020">For information on registration for DIFI PlugFest 2024 Europe, email
<a href="mailto:plugfest@dificonsortium.org"><span style="color:#007C89">plugfest@dificonsortium.org</span></a><o:p></o:p></span></p>
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<span style="font-family:Helvetica;color:#202020">For information on membership visit:
<a href="https://urldefense.us/v3/__https:/dificonsortium.us14.list-manage.com/track/click?u=d85ee1c54ab272a5870de07eb&id=9f8bef7726&e=0541e09529__;!!PvBDto6Hs4WbVuu7!Isalg5gFqUn7k2zuRz5LJzmipTyZ-osA9bJ07ycTGkGv220fZ9vt4uYkd2ieEQFmKzfvDUZuKf2pb_fM-Zyow1G3yZAc$" target="_blank">
<span style="color:#007C89">dificonsortium.org</span></a><o:p></o:p></span></p>
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<h2><span style="color:#013763">About DIFI</span><o:p></o:p></h2>
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<span style="color:#007C89">Digital Intermediate Frequency (IF) Interoperability Consortium</span></a>, or DIFI, has created a standard that enforces interoperability on digital IF/RF technology. Digital IF was developed to overcome the limitations of analog
systems but, today, vendor lock-in prevents it from delivering seamless interoperability and severely limits its adoption. A truly interoperable digital IF, on the other hand, will enable transformation to a virtualized ground segment, reducing the total cost
of ownership and significantly boosting network and terminal agility and scalability. Compliance with the DIFI standard will ensure that satellite ground segments can seamlessly adapt to rapidly changing space-layer payloads, orbits, and constellations. Ultimately,
DIFI promises to elevate the resilience, performance, and capabilities of satellite networks and enable a digital transformation that integrates satellites seamlessly into the larger telecom, IT and GIS markets.<o:p></o:p></span></p>
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