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<p><font size="4">Nautel insist on toroidal ferrites on the coax
headed to the antenna. As this keeps Thor from killing the
MOSFETS. As the HAARP Transmitters are tubes they are not quite
a sensitive. They are designed to operate anywhere on the smith
chart for load impedance... In fact off the smith chart as they
can work with a negative impedance (power being fed back). </font><br>
</p>
<pre class="moz-signature" cols="72">Stephen S. Lockwood, P.E., PMP, President
Hatfield & Dawson Consulting Engineers
9500 Greenwood Ave N, Seattle, WA 98103
Phone 206 783 9151 ext 562 - Mobile 206 399 9440 - <a class="moz-txt-link-abbreviated" href="http://www.hatdaw.com">www.hatdaw.com</a></pre>
<div class="moz-cite-prefix">On 7/30/2024 1:14 PM, Pearson, Ron
wrote:<br>
</div>
<blockquote type="cite"
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<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt">What are you
referring to with ferrites?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
Stephen Lockwood <a class="moz-txt-link-rfc2396E" href="mailto:lockwood@hatdaw.com"><lockwood@hatdaw.com></a>
<br>
<b>Sent:</b> Tuesday, July 30, 2024 12:07 PM<br>
<b>To:</b> Charles Sather <a class="moz-txt-link-rfc2396E" href="mailto:CSather@knba.org"><CSather@knba.org></a>;
Pearson, Ron <a class="moz-txt-link-rfc2396E" href="mailto:RonPearson@iheartmedia.com"><RonPearson@iheartmedia.com></a>;
SBE-89-Alaska <a class="moz-txt-link-rfc2396E" href="mailto:sbe-89-alaska@sea.sbe16.org"><sbe-89-alaska@sea.sbe16.org></a><br>
<b>Subject:</b> Re: [SBE-89-Alaska] [EXTERNAL] Re: HARRP<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p><span style="font-size:13.5pt">There are none! </span><o:p></o:p></p>
<pre>Stephen S. Lockwood, P.E., PMP, President<o:p></o:p></pre>
<pre>Hatfield & Dawson Consulting Engineers<o:p></o:p></pre>
<pre>9500 Greenwood Ave N, Seattle, WA 98103<o:p></o:p></pre>
<pre>Phone 206 783 9151 ext 562 - Mobile 206 399 9440 - <a
href="http://www.hatdaw.com/" moz-do-not-send="true">www.hatdaw.com</a><o:p></o:p></pre>
<div>
<p class="MsoNormal">On 7/30/2024 1:04 PM, Charles Sather
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">Did
you get a count of ferrites for Jeff?</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<div>
<p class="MsoNormal"><b><span
style="font-family:"Arial",sans-serif;color:#783F04">Charles
Sather</span></b><b><span
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#783F04"><br>
</span></b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#783F04">Chief
Operating Officer,</span><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#783F04"> </span><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Koahnic
Broadcast Corporation</span><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#783F04">P.
907-793-3535 | </span><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#B45F06">koahnicbroadcast.org</span><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#B45F06">
<br>
</span><span
style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Support
KBC and its programs through Pick.Click.Give</span><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
</div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
SBE-89-alaska
<a href="mailto:sbe-89-alaska-bounces@sea.sbe16.org"
moz-do-not-send="true"><sbe-89-alaska-bounces@sea.sbe16.org></a>
<b>On Behalf Of </b>Pearson, Ron via SBE-89-alaska<br>
<b>Sent:</b> Tuesday, July 30, 2024 10:30 AM<br>
<b>To:</b> Stephen Lockwood <a
href="mailto:lockwood@hatdaw.com"
moz-do-not-send="true"><lockwood@hatdaw.com></a>;
SBE-89-Alaska
<a href="mailto:sbe-89-alaska@sea.sbe16.org"
moz-do-not-send="true"><sbe-89-alaska@sea.sbe16.org></a><br>
<b>Subject:</b> Re: [SBE-89-Alaska] [EXTERNAL] Re:
HARRP</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Very cool
thank you for the cliffs notes</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
Stephen Lockwood <<a
href="mailto:lockwood@hatdaw.com"
moz-do-not-send="true" class="moz-txt-link-freetext">lockwood@hatdaw.com</a>>
<br>
<b>Sent:</b> Tuesday, July 30, 2024 10:20 AM<br>
<b>To:</b> Pearson, Ron <<a
href="mailto:RonPearson@iheartmedia.com"
moz-do-not-send="true" class="moz-txt-link-freetext">RonPearson@iheartmedia.com</a>>;
SBE-89-Alaska <<a
href="mailto:sbe-89-alaska@sea.sbe16.org"
moz-do-not-send="true" class="moz-txt-link-freetext">sbe-89-alaska@sea.sbe16.org</a>><br>
<b>Subject:</b> Re: [EXTERNAL] Re: [SBE-89-Alaska]
HARRP</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p><span style="font-size:13.5pt">They did. They use NEC4
(if I remember correctly). It is just classic array
physics - just big at these frequencies. The physics is
the same for the nifty flat panel radar arrays or curtain
dipole arrays like we use in HF broadcasting. They just
have some very cool software to change the transmitter
exciters to provide beam steering, circular polarization,
and lots of other cool stuff. Each dipole has its own
transmitter. 180 cross dipoles with 360 10 kW
transmitters.
</span><o:p></o:p></p>
<pre>Stephen S. Lockwood, P.E., PMP, President<o:p></o:p></pre>
<pre>Hatfield & Dawson Consulting Engineers<o:p></o:p></pre>
<pre>9500 Greenwood Ave N, Seattle, WA 98103<o:p></o:p></pre>
<pre>Phone 206 783 9151 ext 562 - Mobile 206 399 9440 - <a
href="https://urldefense.com/v3/__http:/www.hatdaw.com/__;!!Fhnm7mQ!YevFlM_ZEfDefuiwzTJkzkf3AD_m2gz3bNuRV1vBloyNl5i_dk3lqxRT4g9XVBQQvAF9JlCoiH0A9Sxn42qDMt_OlQ$"
moz-do-not-send="true">www.hatdaw.com</a><o:p></o:p></pre>
<div>
<p class="MsoNormal">On 7/30/2024 9:44 AM, Pearson, Ron
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span style="font-size:11.0pt">Hello
Stephen,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Was it
awesome, did they go over finite element (MOM) models
and programming on how the array was built and modeled
and the conceptual motivation for the design?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thank
you </span><span
style="font-size:11.0pt;font-family:"Segoe UI Emoji",sans-serif">😊</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ron</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
SBE-89-alaska
<a href="mailto:sbe-89-alaska-bounces@sea.sbe16.org"
moz-do-not-send="true"><sbe-89-alaska-bounces@sea.sbe16.org></a>
<b>On Behalf Of </b>Stephen Lockwood via
SBE-89-alaska<br>
<b>Sent:</b> Wednesday, July 24, 2024 7:11 AM<br>
<b>To:</b> Pierre Lonewolf <a
href="mailto:lonewolf@otz.net"
moz-do-not-send="true"><lonewolf@otz.net></a>;
SBE Chapter 89 Alaska
<a href="mailto:sbe-89-alaska@sea.sbe16.org"
moz-do-not-send="true"><sbe-89-alaska@sea.sbe16.org></a><br>
<b>Subject:</b> [EXTERNAL] Re: [SBE-89-Alaska] HARRP</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">Did you
find a ride?<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Stephen Lockwood <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">On Jul 21, 2024, at 19:41, Pierre
Lonewolf via SBE-89-alaska <<a
href="mailto:sbe-89-alaska@sea.sbe16.org"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">sbe-89-alaska@sea.sbe16.org</a>>
wrote:
<o:p></o:p></p>
<blockquote
style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
<pre style="margin-bottom:12.0pt">Is anyone from Anchorage driving to the HARRP tour? I finally looked at the map and why am I going to Fairbanks!?<o:p></o:p></pre>
<pre style="margin-bottom:12.0pt"> <o:p></o:p></pre>
<pre style="margin-bottom:12.0pt">Pierre Lonewolf<o:p></o:p></pre>
<pre style="margin-bottom:12.0pt">PO Box 983<o:p></o:p></pre>
<pre style="margin-bottom:12.0pt">393B Whittier Street<o:p></o:p></pre>
<pre style="margin-bottom:12.0pt">Kotzebue, Alaska 99753-0983<o:p></o:p></pre>
<pre style="margin-bottom:12.0pt"> <o:p></o:p></pre>
<pre style="margin-bottom:12.0pt">19074120859 cell<o:p></o:p></pre>
<pre style="margin-bottom:12.0pt">19074423603 fax<o:p></o:p></pre>
<pre style="margin-bottom:12.0pt"><a
href="mailto:Lonewolf@otz.net" moz-do-not-send="true"
class="moz-txt-link-freetext">Lonewolf@otz.net</a><o:p></o:p></pre>
<pre style="margin-bottom:12.0pt"><a
href="mailto:Plonewolf55@gmail.com"
moz-do-not-send="true" class="moz-txt-link-freetext">Plonewolf55@gmail.com</a><o:p></o:p></pre>
<pre style="margin-bottom:12.0pt"> <o:p></o:p></pre>
<pre style="text-align:center"><hr width="100%" size="2"
align="center"></pre>
<pre> <o:p></o:p></pre>
<pre>This List Server is provided by Hatfield & Dawson Consulting Engineers, Seattle, WA<o:p></o:p></pre>
<pre>SBE-89-alaska mailing list<o:p></o:p></pre>
<pre><a href="mailto:SBE-89-alaska@sea.sbe16.org"
moz-do-not-send="true" class="moz-txt-link-freetext">SBE-89-alaska@sea.sbe16.org</a><o:p></o:p></pre>
<pre><a
href="https://urldefense.com/v3/__http:/sea.sbe16.org/mailman/listinfo/sbe-89-alaska__;!!Fhnm7mQ!YevFlM_ZEfDefuiwzTJkzkf3AD_m2gz3bNuRV1vBloyNl5i_dk3lqxRT4g9XVBQQvAF9JlCoiH0A9Sxn42qGGkVbiA$"
moz-do-not-send="true">http://sea.sbe16.org/mailman/listinfo/sbe-89-alaska</a><o:p></o:p></pre>
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