[TangerineSDR] TangerineSDR Digest, Vol 20, Issue 16

Fri Nov 13 09:27:01 EST 2020

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.
73,
Jules - K2KGJ

On 11/13/2020 8:47 AM, tangerinesdr-request at lists.tapr.org wrote:
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> 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."
> 	<nathaniel.frissell at scranton.edu>
> To: TAPR TangerineSDR Modular Software Defined Radio
> 	<tangerinesdr at lists.tapr.org>, David McGaw
> 	<david.g.mcgaw at dartmouth.edu>
> Subject: Re: [TangerineSDR] Magnetometer Prototype Testing Plan
> Message-ID:
> 	<BLAPR03MB55406054674FC8B221DED8E4F2E70 at BLAPR03MB5540.namprd03.prod.outlook.com>
> 	
> Content-Type: text/plain; charset="us-ascii"
>
> Thank you!
>
> Sent from my Verizon, Samsung Galaxy smartphone
> Get Outlook for Android<https://aka.ms/ghei36>
>
> ________________________________
> From: David G. McGaw <david.g.mcgaw at dartmouth.edu>
> Sent: Thursday, November 12, 2020 11:58:57 AM
> To: Dr. Nathaniel A. Frissell Ph.D. <nathaniel.frissell at scranton.edu>; TAPR TangerineSDR Modular Software Defined Radio <tangerinesdr at lists.tapr.org>
> 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" <hmkim at njit.edu>
> To: TAPR TangerineSDR Modular Software Defined Radio
> 	<tangerinesdr at lists.tapr.org>
> Subject: Re: [TangerineSDR] Magnetometer Prototype Testing Plan
> Message-ID:
> 	<CAFXoXAUj1CpjTKf9Cj-9sb5ZU4pESQ65FwYJ_zSVTDd9eiajXw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> 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] <https://www.njit.edu/> *Hyomin Kim*
> Assistant Professor
> Physics
> Center for Solar-Terrestrial Research
> Institute for Space Weather Sciences
> hmkim at njit.edu ? (973) 596-5704
> https://web.njit.edu/~hmkim/
> 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 <tangerinesdr at lists.tapr.org> wrote:
>
>> Thank you!
>>
>> Sent from my Verizon, Samsung Galaxy smartphone
>> Get Outlook for Android <https://aka.ms/ghei36>
>>
>> ------------------------------
>> *From:* David G. McGaw <david.g.mcgaw at dartmouth.edu>
>> *Sent:* Thursday, November 12, 2020 11:58:57 AM
>> *To:* Dr. Nathaniel A. Frissell Ph.D. <nathaniel.frissell at scranton.edu>;
>> TAPR TangerineSDR Modular Software Defined Radio <
>> tangerinesdr at lists.tapr.org>
>> *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
>> TangerineSDR at lists.tapr.org
>> http://lists.tapr.org/mailman/listinfo/tangerinesdr_lists.tapr.org
>>
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> ------------------------------
>
> Message: 3
> Date: Fri, 13 Nov 2020 13:46:25 +0000
> From: "Dr. Nathaniel A. Frissell Ph.D."
> 	<nathaniel.frissell at scranton.edu>
> To: "hamsci at googlegroups.com" <hamsci at googlegroups.com>, TangerineSDR
> 	Listserv <tangerinesdr at lists.tapr.org>
> Subject: Re: [TangerineSDR] HamSCI Bi-Weekly Telecon this Thursday -
> 	Radio Noise Propagation and Measurement with Ben Witvliet PE5B
> Message-ID:
> 	<BLAPR03MB55401D21770C61FB7F4F534AF2E60 at BLAPR03MB5540.namprd03.prod.outlook.com>
> 	
> 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:
> https://scranton.zoom.us/rec/share/d4kT7-HI54OMg7QVoaCzcj9aZu51mVTnd1_qo8x03B2xB-ViL2FT-z1jBDJZqs6K.AY9BiSp8oU5GWdgO
>
> 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 (https://www.agu.org/Fall-Meeting).
>
> Happy Thanksgiving and talk to you soon!
>
> 73 de Nathaniel W2NAF
>
> From: hamsci at googlegroups.com <hamsci at googlegroups.com> On Behalf Of Dr. Nathaniel A. Frissell Ph.D.
> Sent: Wednesday, November 11, 2020 7:49 AM
> To: TangerineSDR Listserv <tangerinesdr at lists.tapr.org>; hamsci at googlegroups.com
> 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: https://scranton.zoom.us/j/286316405?pwd=QWdwMlFPbDlYeXg5ZDg1dmYzeFdCUT09
> 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 http://hamsci.org/hamsci-community-participation-guidelines.
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> End of TangerineSDR Digest, Vol 20, Issue 16
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