Our October 10th online club meeting will be on HamSCI:
HamSCI – The Ionosphere from your Backyard
Nathaniel A. Frissell
The University of Scranton
Recent advances in geospace remote sensing have shown that large-scale distributed networks of ground-based sensors pay large dividends by providing a big picture view of phenomena that were previously observed only by point-measurements. Notable examples include the improved understanding of traveling ionospheric disturbance (TID) sources based on observations from the high frequency (HF) Super Dual Auroral Radar Network (SuperDARN) radars and GNSS-based total electron content remote sensing networks. While these existing networks provide excellent insight into TID science, the system remains undersampled (especially at HF) and more observations are needed to advance understanding. Additionally, previous measurements have revealed that characteristics of medium scale traveling ionospheric disturbances (MSTIDs) observed on the bottomside ionosphere using oblique HF sounding by SuperDARN differ from integrated ionospheric measurements of MSTIDs made using GNSS-TEC. These differences have yet to be accounted for, and additional observations could aid in understanding the propagation of MSTIDs from the bottom to the top of the ionosphere. In an effort to generate these additional measurements, the Ham Radio Science Citizen Investigation (HamSCI, hamsci.org) is working with the Tucson Amateur Packet Radio Corporation (TAPR, tapr.org), an engineering organization comprising of volunteer amateur radio operators and engineers, to develop a network of Personal Space Weather Stations that will provide scientific-grade observations of signals-of-opportunity across the HF bands from volunteer citizen observers. These measurements will play a key role in the characterization of ionospheric variability across the geographic regions in which these stations are deployed. We will describe concepts, key software patterns for radio science, and proposed timelines for the Personal Space Weather Station project. A particular focus will be assembling the proper metadata for science grade observations, and strategies for lightweight calibration of radio sensors. Initial project efforts concentrate on a wideband receiving station and backing software data distribution system.
Bio: Dr. Nathaniel Frissell is a Space Physicist and Electrical Engineer. Dr. Frissell has a passion for radio science and remote sensing of the ionosphere. He was introduced to space physics and space weather in middle and high school through the hobby of amateur (ham) radio, where he was fascinated by long-distance radio propagation and the variability imposed on it by the geospace system. In addition to leading him to pursue a Ph.D. in this field, it enabled him to found and lead the Ham radio Science Citizen Investigation (HamSCI, hamsci.org), a citizen science collective that aims to bring together the professional research and the amateur radio communities. This has led to the Solar Eclipse QSO Party, a nationwide ham radio experiment to study the August 21, 2017 Total Solar Eclipse (hamsci.org/seqp), and an ongoing collaboration with the amateur radio electrical engineering organization TAPR (tapr.org) to develop a Personal Space Weather Station (hamsci.org/swstation). For his efforts, the amateur radio community has awarded him the prestigious 2017 Yasme Foundation Excellence award and the 2019 Dayton Amateur Radio Association Amateur of the Year Award.
In addition, Dr. Frissell has a long-time passion for teaching and education. He earned his B.S. in Physics and Music Education from Montclair State University (2007). He voluntarily coordinated and taught amateur radio license classes and radio and astronomy merit badge classes. An Eagle Scout and Vigil Honor Member, Dr. Frissell taught science and technology for six summers at Forestburg Scout Reservation in New York, and taught amateur radio with the K2BSA group at multiple Boy Scout National Scout Jamborees.
If you have any suggestions or requests for other monthly presentations, email Eric AD7F at firstname.lastname@example.org.
Here is your link to the Zoom meeting:
Topic: Lake Washington Ham Club
Meeting ID: 764 222 672
Password: 73 (will be needed if you have an old link)
We will open the Zoom meeting a little bit before 9am with the meeting starting at 9:30am.
Until further notice, all club activities such as our monthly club meetings, classes and exam sessions have been transitioned to online Zoom meetings.
The venue that we use for all of our onsite activities is a conference room in Redmond City Hall (with our continued thanks to the sponsorship of the City of Redmond, Office of Emergency Management). Because of the latest COVID-19 guidelines published by King County Health, the City has requested that all groups who use their facilities cancel any “large events”. They defined “large events” as those with more than 10 people. Our meetings certainly qualify as we get 40-60 hams each meeting. We have no idea when this condition will be lifted.
Conditions are very fluid and changing daily (sometimes hourly). We do not have any estimate on when we will resume our normal in-person activities.
If you have any questions, drop me an email at email@example.com.
_-_-_ Dave, AE7TD, President, Lake Washington Ham Club
A list of useful Zoom “tips and tricks” is located here:
Updated 29-Sep-2020: Two items: (1) the Internet at the Rose Hill site is down; thus no Echolink, etc. and (2) the amplitude of the signal from the 2m VHF repeater has suddenly decreased dramatically (in the order of 50%). We rebooted the controller and the repeaters and things have returned to normal. But keep an eye out and report the issue to Don W7OXR if it happens again. When this happens the repeater is still operational, but at a substantially reduced audio level. The 70cm and 6m repeaters are unaffected.
Interested in getting one of our new club badges? Go here:
WOW! We have a new permanent club monthly meeting site! We have been invited by the City of Redmond, Office of Emergency Management to use the city’s Conference Center at Redmond City Hall (side entrance). Go here for more information.
Our thanks to the Redmond Presbyterian Church for the use of their facilities over the last couple of months as a temporary home. We appreciate it.
Our new monthly club meeting place will be at:
Redmond City Hall (side entrance)
Conference Center Room A/B
15670 NE 85th Street, Redmond WA
2nd Saturday of every month
@9:30am for the regular club meeting and
@11am for our VE Exam Session (for new and upgrading license candidates)
The ARRL has launched a new podcast geared towards new ham radio amateurs. Click here for more information.
Two interesting awards are available from the ARRL. Check them out!
First, for new hams, the ARRL has a “First Contact Award.” The award is a very nice certificate suitable for framing that commemorates your first “on-the-air” contact. This would be a wonderful surprise to send a ham when you are THEIR first contact. For more information, check out the First Contact Award page at http://www.arrl.org/first-contact
The second award is the ARRL “Elmer Award.” An Elmer is someone who provides personal guidance and assistance to would-be or new hams. While technology constantly evolves, the human interaction between hams will not be replaced and will always remain one of the hobby’s strongest traditions. As licensed hams we are all ambassadors of Amateur Radio and we should always be looking at ways in which we can welcome newly licensed hams and project a positive image that will attract others to ham radio. The Elmer Award is a way that you can thank your own Elmer for their time, expertise, and encouragement. Check out the Elmer award page at http://www.arrl.org/elmer-award to present the Elmer Award certificate to someone who has helped you in Amateur Radio.
9-Dec-2017 — Interested in trying something new? But still old? (That sounds interesting, huh!) At our “Holiday Field Day” party, Rick Beatty, W7RNB47@gmail.com announced that his 10 meter repeater continues to be available in Edmonds. Given the uneven and unpredictable propagation in the current sunspot cycle, he is interested in feedback of successful contacts with it. The repeater is at 29.68 MHz (-100 KHz offset) with a PL tone of 110.9. The repeater is available for general use and is open to all. However, you might notice that its receive frequency is outside of the Technician phone portion of the 10M band, so you will need a General license or higher to transmit to it.
Interested in CW? Take a look at this document. Very cool stuff! http://www.zerobeat.net/downloads/tasrt-english.zip
Club calendar now ONLINE: Click here to view (http://groups.yahoo.com/group/lwhcmembers/cal) — it is part of our Yahoo group. Feel free to add or edit any entry! It is a shared calendar for the club’s use. If you update it, then please send an email to the Yahoo group so everyone knows about it(mailto:firstname.lastname@example.org).
Club Yahoo group — ‘lwhcmembers’ is now ONLINE: Click http://groups.yahoo.com/group/lwhcmembers/join to join the club’s Yahoo group. It is a closed group to just club members — no SPAM — no unsolicited emails. To send email just click mailto:email@example.com .
2020 Memberships now available: Renewal (and new) memberships for 2020 are now available. Membership is based on the calendar year and is not pro-rated. For your convenience, if you want to pay online, here is a PayPal link to process your renewal:
Many local companies, such as Microsoft Corporation and Boeing, have matching gift programs for non-profits. Contact your HR department to check to see matching donations can be made available to LWHC. Thank you for the early renewal for next year’s membership.
Note: We can only take renewals via the above PayPal link. General donations to the club are welcome but unfortunately cannot be done via PayPal. Contact the club at firstname.lastname@example.org to make donations to the club. LWHC is a 503(c) charitable organization.
New to HAM radio? Do you have questions around what would be a good first radio? If so, we have a great new way to get some advice. Go to our Radio Selection Survey page and take our survey. The results will be posted to a group of the club’s HAMs who has lots of experience to help you. Here is a link.
Mission Statement: The primary mission of the Lake Washington Ham Club is to provide Amateur Radio support to the community. Toward that end the Lake Washington Ham Club:
- Offers amateur radio instructional classes and testing services for new and upgrading ham radio operators;
- Trains emergency service groups in communications;
- Offers short term loan of radio equipment;
- Operates radio repeater stations; and
- Owns and operates an amateur radio station.
Our club has a particular focus on youth. All of our programs have a youth component – click here for more specifics on our youth activities.
Important: In the event of an emergency the repeaters are reserved for the Amateur Radio Emergency Services
The club is also a 501(c)3 corporation and donations are always welcome. We use these funds to further our mission by maintaining our equipment, adding new capabilities, conducting classes that help bring new hams into the hobby, and sponsoring activities to impact our community. If interested in making a tax-deductible donation, please use the PayPal button below.
If you would like to specify your donation to a specific activity, when you get into PayPal, you can add a “Note” to tell us what specific activity you feel passionate about.
Thank you for your support.