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Jeff Stuparits, W4DD, will present “Locating Power Line Noise and other RFI” at the Sci-Tech Amateur Radio Society hybrid meeting on May 13, 2025 in Natick and online.

Description: Radio Frequency Interference (RFI) can be generated from many different devices and can decrease or totally eliminate your ability to hear stations on your HF or VHF radio.  In today’s modern world of numerous electronic devices in and around our homes, it’s not a matter of if you have RFI, but of how many devices are generating it and how significantly is it interfering with your Ham Radio receiving ability.  RFI can also affect other services like AM radio, FM radio, Over-the-Air TV, DSL Internet, public safety communications, and even cellular telephones.  Jeff became interested in RFI about fifteen years ago when it affected his ability to enjoy ham radio for contesting, weak signal work, and QSO’s.  In addition to providing information on locating RFI, he will also have a few pieces of hardware for show and tell and discuss how he approaches RFI problems. 

Bio: Jeff is retired from Verizon Wireless where he worked in the Advanced Technology Group on spectrum issues, including cellular spectrum optimization and FCC spectrum auctions.  In addition to his 20 years in cellular, earlier in his career he worked in Telephone Operations and Air Defense Communications.  Jeff’s background includes a EE, an MBA, and he is a licensed PE.  Additional information about Jeff can be found on his QRZ web page or in the August 2022 QST Member Spotlight.

The Nashoba Valley Amateur Radio Club‘s May meeting is Thursday, May 15th at 7:30 PM at the Pepperell Community Center (in Pepperell). We start gathering at 7 PM to socialize before the meeting starts.

May’s speaker will be Les Peters, N1SV.  Les will speak on Chasing Operating Awards and Logbook of the World.  We will also discuss plans for Field Day and some recent events like the Boston Marathon, the Groton Road Race, NearFest, & the Eastern VHF / UHF conference.

If you need directions to the club meeting, please click <http://binged.it/smoogg> here and put your own address in box “A”.

Thanks, and 73. Please feel free to contact me if you have any questions.

Bruce, K1BG
978-772-2773 or  bruce.blain@charter.net

The Sci-Tech Amateur Radio Society (STARS) and Boston Amateur Radio Club (BARC) will hold a joint gathering/meeting at NESciTech at 16 Tech Circle, Natick, MA with light refreshments. Our usual Zoom link will be operational if you cannot attend in person. Optional: Bring a dessert, salad, or anything you would like to contribute. Regardless, please bring yourselves in person if possible. If you have not already registered for this event, please be sure to register ASAP today on the Event Listing so we will know how much food to order.

STARS members will conduct tours of the facility for those arriving early. Light refreshments will be served prior to the formal meeting at 7:00 PM.

The agenda includes:

o Around-the-room so everyone can introduce themselves, their role in the club, and what they’re into in the amateur radio realm.

o Significant projects on which each club is working (e.g., Trailer, satellite station; courses being taught).

o Informal brainstorming and idea sharing re ways to grow our clubs and the hobby as well as issues (e.g., Attracting younger members; getting more people to volunteer to lead club activities), etc.

David Marcucci, KC1TLF, writes on the Billerica ARS Facebook page:

I am pleased to announce that our Guest Speaker for the May 7, 2025, club meeting will be Andy Stewart, KB1OIQ.

Andy (KB1OIQ) is an extra class licensee who has been in the hobby since 2007 and will present on the history of the “Andy’s Ham Radio Linux” software collection, where to get it, and an overview of the available programs.  Andy is a past president of PART of Westford.  He retired in August 2024 from a career as a digital logic verification engineer.  Andy also enjoys repairing antique radio receivers and chasing DX.

After the meeting, the recording and any shared content made available to BARS will be added to this post. The meeting will be in-person, at the Chelmsford Bible Church, 128 Gorham St, Chelmsford, MA, and online via Zoom.

As always, the link to join the Zoom meeting will be posted to the BARS email list and should not be shared outside our Club. Are you on the email list? If not, subscribing is as easy as emailing bars-subscribe@w1hh.org and then replying to the robot response to confirm your subscription.

Watching our Zoom meetings requires only a web browser and headphones or speakers. You do not need a microphone or webcam unless you want to speak or be seen. Please go to https://zoom.us/test to test your setup anytime before the meeting. If you have problems, feel free to ask questions on the BARS email list for assistance.

We look forward to “seeing” many of you there on Wednesday at 1900 local time.

Dom Mallozzi, N1DM, will present “A Smorgasbord of Radio” at the May 8 meeting of the Algonquin Amateur Radio Club at 7:30 PM  in the library of the 1st Lt. Charles W. Whitcomb School, 25 Union St, Marlborough, MA. Enter from Agoritsas Drive next to police station and use Door #1 at rear of building.

Max Kendall, WØMXX, will present “RF PCB Design” at the Sci-Tech Amateur Radio Society hybrid meeting on April 29, 2025 in Natick and online.

Description: RF PCB design is often considered one of the more challenging aspects of electronics engineering due to the high frequencies involved and the sensitivity of signal integrity. In this presentation, Max will dive into the core principles that underpin effective and reliable RF board design. He will explore the importance of using a 4-layer PCB stackup, which allows for better isolation, dedicated ground and power planes, and improved signal performance. Topics will include the role of copper pours in managing return paths and minimizing interference, as well as how to achieve proper impedance matching for critical RF components and transmission lines. Max will also walk through best practices for feedline routing, highlighting techniques for minimizing signal loss, avoiding crosstalk, and ensuring consistent characteristic impedance throughout the board.

Bio: Max is an 8th grader at Benjamin Franklin Classical Charter Public School. He is the president of STARS radio club at New England Sci-Tech, the president of the 4-H Science Explorers, a mentor at the Medway Library Arduino club and STEAM classes, and founder of the New England Weather Balloon Society. He is also the founder of habtronics. He earned his Extra license in 2021. Max enjoys working with robotics and electronics, and has been tinkering since he was a toddler. He is passionate about sharing his knowledge with other kids and adults alike. He teaches many classes and workshops at New England Sci-Tech, an educational non-profit. He also enjoys reading classics, math, Latin, and climbing. https://mpkendall.com