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<font face="Arial">Just a reminder to anyone living in black legged
deer tick areas, even with colder weather returning, it will be a
while before the chance of picking up a disease carrying tick
while working outside in more rural areas subsides. While boring
another hole for a vertical mag mount closer to my house on
Wednesday, I picked up a deer tick in the process which I didn't
find until about 10 hours later. Take the usual precautions and
check yourself after finishing for the day.<br>
73,<br>
Jules - K2KGJ<br>
<br>
</font><br>
<div class="moz-cite-prefix">On 11/13/2020 8:47 AM,
<a class="moz-txt-link-abbreviated" href="mailto:tangerinesdr-request@lists.tapr.org">tangerinesdr-request@lists.tapr.org</a> wrote:<br>
</div>
<blockquote type="cite"
cite="mid:mailman.44.1605275232.27142.tangerinesdr_lists.tapr.org@lists.tapr.org">
<pre class="moz-quote-pre" wrap="">Send TangerineSDR mailing list submissions to
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To subscribe or unsubscribe via the World Wide Web, visit
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or, via email, send a message with subject or body 'help' to
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You can reach the person managing the list at
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of TangerineSDR digest..."
Today's Topics:
1. Re: Magnetometer Prototype Testing Plan
(Dr. Nathaniel A. Frissell Ph.D.)
2. Re: Magnetometer Prototype Testing Plan (Kim, Hyomin)
3. Re: HamSCI Bi-Weekly Telecon this Thursday - Radio Noise
Propagation and Measurement with Ben Witvliet PE5B
(Dr. Nathaniel A. Frissell Ph.D.)
----------------------------------------------------------------------
Message: 1
Date: Thu, 12 Nov 2020 17:16:04 +0000
From: "Dr. Nathaniel A. Frissell Ph.D."
<a class="moz-txt-link-rfc2396E" href="mailto:nathaniel.frissell@scranton.edu"><nathaniel.frissell@scranton.edu></a>
To: TAPR TangerineSDR Modular Software Defined Radio
<a class="moz-txt-link-rfc2396E" href="mailto:tangerinesdr@lists.tapr.org"><tangerinesdr@lists.tapr.org></a>, David McGaw
<a class="moz-txt-link-rfc2396E" href="mailto:david.g.mcgaw@dartmouth.edu"><david.g.mcgaw@dartmouth.edu></a>
Subject: Re: [TangerineSDR] Magnetometer Prototype Testing Plan
Message-ID:
<a class="moz-txt-link-rfc2396E" href="mailto:BLAPR03MB55406054674FC8B221DED8E4F2E70@BLAPR03MB5540.namprd03.prod.outlook.com"><BLAPR03MB55406054674FC8B221DED8E4F2E70@BLAPR03MB5540.namprd03.prod.outlook.com></a>
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Thank you!
Sent from my Verizon, Samsung Galaxy smartphone
Get Outlook for Android<a class="moz-txt-link-rfc2396E" href="https://aka.ms/ghei36"><https://aka.ms/ghei36></a>
________________________________
From: David G. McGaw <a class="moz-txt-link-rfc2396E" href="mailto:david.g.mcgaw@dartmouth.edu"><david.g.mcgaw@dartmouth.edu></a>
Sent: Thursday, November 12, 2020 11:58:57 AM
To: Dr. Nathaniel A. Frissell Ph.D. <a class="moz-txt-link-rfc2396E" href="mailto:nathaniel.frissell@scranton.edu"><nathaniel.frissell@scranton.edu></a>; TAPR TangerineSDR Modular Software Defined Radio <a class="moz-txt-link-rfc2396E" href="mailto:tangerinesdr@lists.tapr.org"><tangerinesdr@lists.tapr.org></a>
Subject: Re: [TangerineSDR] Magnetometer Prototype Testing Plan
Please ship to QRZ address.
73,
David N1HAC
On 11/12/20 11:07 AM, Dr. Nathaniel A. Frissell Ph.D. wrote:
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Message: 2
Date: Thu, 12 Nov 2020 12:59:31 -0500
From: "Kim, Hyomin" <a class="moz-txt-link-rfc2396E" href="mailto:hmkim@njit.edu"><hmkim@njit.edu></a>
To: TAPR TangerineSDR Modular Software Defined Radio
<a class="moz-txt-link-rfc2396E" href="mailto:tangerinesdr@lists.tapr.org"><tangerinesdr@lists.tapr.org></a>
Subject: Re: [TangerineSDR] Magnetometer Prototype Testing Plan
Message-ID:
<a class="moz-txt-link-rfc2396E" href="mailto:CAFXoXAUj1CpjTKf9Cj-9sb5ZU4pESQ65FwYJ_zSVTDd9eiajXw@mail.gmail.com"><CAFXoXAUj1CpjTKf9Cj-9sb5ZU4pESQ65FwYJ_zSVTDd9eiajXw@mail.gmail.com></a>
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I think the nature of our measurements is more or less "relative" as we
can't expect such an elaborate installation and measurements. Such a
"wrong" installation can/could be detected by comparing signals from
neighboring magnetometer(s) as contamination due to proximate noise
source(s) is often very pronounced. Perhaps, I will include guidelines
stressing "what to avoid". Some contaminations can be found quite easily;
while some cannot be at all. We will also ask operators to do some "trial
and error" in terms of locating sensors to find a sweet spot. Of course
this can be done by comparing signals back to back with neighboring ones.
Hyomin
[image: NJIT logo] <a class="moz-txt-link-rfc2396E" href="https://www.njit.edu/"><https://www.njit.edu/></a> *Hyomin Kim*
Assistant Professor
Physics
Center for Solar-Terrestrial Research
Institute for Space Weather Sciences
<a class="moz-txt-link-abbreviated" href="mailto:hmkim@njit.edu">hmkim@njit.edu</a> ? (973) 596-5704
<a class="moz-txt-link-freetext" href="https://web.njit.edu/~hmkim/">https://web.njit.edu/~hmkim/</a>
104 Tiernan Hall, 161 Warren Street, Newark, NJ 07102
On Thu, Nov 12, 2020 at 12:16 PM Dr. Nathaniel A. Frissell Ph.D. via
TangerineSDR <a class="moz-txt-link-rfc2396E" href="mailto:tangerinesdr@lists.tapr.org"><tangerinesdr@lists.tapr.org></a> wrote:
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">Thank you!
Sent from my Verizon, Samsung Galaxy smartphone
Get Outlook for Android <a class="moz-txt-link-rfc2396E" href="https://aka.ms/ghei36"><https://aka.ms/ghei36></a>
------------------------------
*From:* David G. McGaw <a class="moz-txt-link-rfc2396E" href="mailto:david.g.mcgaw@dartmouth.edu"><david.g.mcgaw@dartmouth.edu></a>
*Sent:* Thursday, November 12, 2020 11:58:57 AM
*To:* Dr. Nathaniel A. Frissell Ph.D. <a class="moz-txt-link-rfc2396E" href="mailto:nathaniel.frissell@scranton.edu"><nathaniel.frissell@scranton.edu></a>;
TAPR TangerineSDR Modular Software Defined Radio <
<a class="moz-txt-link-abbreviated" href="mailto:tangerinesdr@lists.tapr.org">tangerinesdr@lists.tapr.org</a>>
*Subject:* Re: [TangerineSDR] Magnetometer Prototype Testing Plan
Please ship to QRZ address.
73,
David N1HAC
On 11/12/20 11:07 AM, Dr. Nathaniel A. Frissell Ph.D. wrote:
--
TangerineSDR mailing list
<a class="moz-txt-link-abbreviated" href="mailto:TangerineSDR@lists.tapr.org">TangerineSDR@lists.tapr.org</a>
<a class="moz-txt-link-freetext" href="http://lists.tapr.org/mailman/listinfo/tangerinesdr_lists.tapr.org">http://lists.tapr.org/mailman/listinfo/tangerinesdr_lists.tapr.org</a>
</pre>
</blockquote>
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------------------------------
Message: 3
Date: Fri, 13 Nov 2020 13:46:25 +0000
From: "Dr. Nathaniel A. Frissell Ph.D."
<a class="moz-txt-link-rfc2396E" href="mailto:nathaniel.frissell@scranton.edu"><nathaniel.frissell@scranton.edu></a>
To: <a class="moz-txt-link-rfc2396E" href="mailto:hamsci@googlegroups.com">"hamsci@googlegroups.com"</a> <a class="moz-txt-link-rfc2396E" href="mailto:hamsci@googlegroups.com"><hamsci@googlegroups.com></a>, TangerineSDR
Listserv <a class="moz-txt-link-rfc2396E" href="mailto:tangerinesdr@lists.tapr.org"><tangerinesdr@lists.tapr.org></a>
Subject: Re: [TangerineSDR] HamSCI Bi-Weekly Telecon this Thursday -
Radio Noise Propagation and Measurement with Ben Witvliet PE5B
Message-ID:
<a class="moz-txt-link-rfc2396E" href="mailto:BLAPR03MB55401D21770C61FB7F4F534AF2E60@BLAPR03MB5540.namprd03.prod.outlook.com"><BLAPR03MB55401D21770C61FB7F4F534AF2E60@BLAPR03MB5540.namprd03.prod.outlook.com></a>
Content-Type: text/plain; charset="utf-8"
Hi all,
Thank you again for Ben PE5B?s excellent talk on Radio Noise and Propagation Measurement. The recording is available here:
<a class="moz-txt-link-freetext" href="https://scranton.zoom.us/rec/share/d4kT7-HI54OMg7QVoaCzcj9aZu51mVTnd1_qo8x03B2xB-ViL2FT-z1jBDJZqs6K.AY9BiSp8oU5GWdgO">https://scranton.zoom.us/rec/share/d4kT7-HI54OMg7QVoaCzcj9aZu51mVTnd1_qo8x03B2xB-ViL2FT-z1jBDJZqs6K.AY9BiSp8oU5GWdgO</a>
There will NOT be a HamSCI telecon in 2 weeks because that is Thanksgiving. I will also be in touch regarding December 10th, because that is in the middle of virtual AGU (<a class="moz-txt-link-freetext" href="https://www.agu.org/Fall-Meeting">https://www.agu.org/Fall-Meeting</a>).
Happy Thanksgiving and talk to you soon!
73 de Nathaniel W2NAF
From: <a class="moz-txt-link-abbreviated" href="mailto:hamsci@googlegroups.com">hamsci@googlegroups.com</a> <a class="moz-txt-link-rfc2396E" href="mailto:hamsci@googlegroups.com"><hamsci@googlegroups.com></a> On Behalf Of Dr. Nathaniel A. Frissell Ph.D.
Sent: Wednesday, November 11, 2020 7:49 AM
To: TangerineSDR Listserv <a class="moz-txt-link-rfc2396E" href="mailto:tangerinesdr@lists.tapr.org"><tangerinesdr@lists.tapr.org></a>; <a class="moz-txt-link-abbreviated" href="mailto:hamsci@googlegroups.com">hamsci@googlegroups.com</a>
Subject: [HamSCI] HamSCI Bi-Weekly Telecon this Thursday - Radio Noise Propagation and Measurement with Ben Witvliet PE5B
Hi HamSCI,
Tomorrow, Thursday, November 12th is our bi-weekly HamSCI Zoom telecon at 2000z / 3 PM Eastern. Please note the Zulu/UTC time change from the last telecon because we are now on Eastern Standard Time.
Here is the link: <a class="moz-txt-link-freetext" href="https://scranton.zoom.us/j/286316405?pwd=QWdwMlFPbDlYeXg5ZDg1dmYzeFdCUT09">https://scranton.zoom.us/j/286316405?pwd=QWdwMlFPbDlYeXg5ZDg1dmYzeFdCUT09</a>
If you are asked for a password, it is ?hamsci?.
Dr. Ben Witvliet, PE5B will give apresentation on 'radio noise'. Ben is a radio amateur since 1974 and a technical expert in the ITU Study Group 3 'Propagation and radio noise'. Especially below 20 MHz, ambient electromagnetic noise or 'radio noise' limits reception, rather than the internal noise of the receiver. Ben will talk about the propagation from the noise source to the receiver, elevation angle and polarization. He will present HF radio noise measurements in Quiet Rural environments in which different noise sources can be distinguished. He will also demonstrate by measurement that in a Quiet Rural area, most of the radio noise arrives via skywave. Furthermore, he will talk about radio noise measurement methods. True radio noise measurements are challenging, especially in quiet environments. Sensitivity, linearity, and engineering skills to design the set-up and interpret the results are essential. Also, the presence of weak and variable legitimate radio signals in the spectr
um pose a challenge, for which adaptive filtering may help. He will also talk briefly about the activities in ITU Study Group 3 and the need for more measurements outside Europe. Duration 20-30 minutes, questions after the presentation.
dr. ing. Ben Witvliet [pronounce 'Wit-fleet?] (PE5B) is a radio amateur since the age of 13 in 1974. He lived in New Guinea, The Netherlands, Monaco, Israel, Madagascar and England, where he held the callsigns PA3BXC,PA3BXC/3A2, 4X/PA3BXC, PA5BW, 5R8DS and M0IJQ. He loves CW DX, especially on the low bands. He holds 5BDXCC, obtainedwith 100 Watts and simple antennas. Since the beginning of his radio hobby he has been intrigued by antennas and propagation. He worked in high power broadcast engineering in The Netherlands and was chief engineer of the Radio Netherlands shortwave station in Madagascar, operating two 300 kW transmitters with 17 to23 dBi antennas. He currently works as a technical expert of the Radio Communications Agency of The Netherlands and continues his research in part-time at the University of Twente. Ben obtained his PhD - and the Anton Veder award - in 2015 for his research on NVIS antennas and propagation.
Thanks and 73 de Nathaniel W2NAF
?
Dr. Nathaniel A. Frissell, Ph.D., W2NAF
HamSCI Lead
Assistant Professor
Department of Physics and Electrical Engineering
University of Scranton
(973) 787-4506
--
Please follow the HamSCI Community Participation Guidelines at <a class="moz-txt-link-freetext" href="http://hamsci.org/hamsci-community-participation-guidelines">http://hamsci.org/hamsci-community-participation-guidelines</a>.
---
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</pre>
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