<span style=" font-size:10pt;font-family:sans-serif">Dear All,</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">please see below
the first set of comments received. They were provided by Wai who did indicate
he had no comments on SLS-RFM_20-03.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Please do not
start replying at this stage. On May 6, I will discuss with Jim how to
handle all received comments.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Regards, Enrico</span>
<br>
<br><span style=" font-size:9pt;color:#800080;font-family:sans-serif">-----
Forwarded by Enrico Vassallo/esoc/ESA on 21/04/20 11:22 -----</span>
<br>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:
       </span><span style=" font-size:9pt;font-family:sans-serif">"Fong,
Wai H. (GSFC-5670)" <wai.h.fong@nasa.gov></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:
       </span><span style=" font-size:9pt;font-family:sans-serif">"Enrico.Vassallo@esa.int"
<Enrico.Vassallo@esa.int></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Cc:
       </span><span style=" font-size:9pt;font-family:sans-serif">"Rodriguez,
Shannon (GSFC-5670)" <shannon.rodriguez-1@nasa.gov>, "Lee,
Wing-tsz (GSFC-5670)" <wing-tsz.lee-1@nasa.gov>, "Sank,
Victor J. (GSFC-567.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]" <victor.j.sank@nasa.gov></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:
       </span><span style=" font-size:9pt;font-family:sans-serif">20/04/20
18:54</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:
       </span><span style=" font-size:9pt;font-family:sans-serif">Re:
[EXTERNAL] [Sls-rfm] Fw: CCSDS RFM WG Spring meeting - first two inputs
from DDOR WG</span>
<br>
<hr noshade>
<br>
<br>
<br><span style=" font-size:12pt;font-family:Calibri">Enrico,</span>
<br>
<br><span style=" font-size:12pt;font-family:Calibri">Here are my comments
to these two papers:</span>
<br>
<br><span style=" font-size:12pt;font-family:Calibri">Comments to </span><span style=" font-size:10pt;color:#2f2f2f;font-family:sans-serif">SLS-RFM_20-04:
 If predistortion is required according to SLS-RFM_20-05, then why
is it not in the considerings or recommendations?</span>
<br>
<br><span style=" font-size:12pt;font-family:Calibri">Comments to </span><span style=" font-size:10pt;color:#2f2f2f;font-family:sans-serif">SLS-RFM_20-05:
 1. What form of predistortion is used in the implementation? How
much additional complexity is added? 2. It is not clear to me how the frequency
hopping achieves high sub-carrier frequency separation. The subcarrier
spectrum becomes disjointed according to diagram. Please elaborate further.</span>
<br>
<br><span style=" font-size:12pt;font-family:Calibri">Regards,</span>
<br>
<br><span style=" font-size:12pt;font-family:Calibri">Wai Fong</span>
<br><tt><span style=" font-size:12pt"><br>
</span></tt>
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