Tag Archives: Mentor

Activities, Education and Training, Featured, General, Newsletter, On The Air, Youth Activities

Academy for Science and Design SPARK Day

John Keslo, W1MBG, Jamey Finchum, KC1ENX, and I recently had the chance to again be part of SPARK Day at the Academy for Science and Design (ASD) in Nashua, New Hampshire. We attended SPARK Day to provide an Introduction to Amateur Radio for the students at ASD. ASD’s goal is to be a world-class school that specializes in science, engineering, mathematics, and design. The school provides education for students in grades 6-12. ASD periodically holds SPARK (Symposium Promoting Advancement of Real-world Knowledge) conferences, which enable ASD students to learn about areas which might help them to develop careers in Science, Technology, Engineering and/or Math (STEM).

SPARK Day Group Learning About Amateur Radio
ASD Group Learning About Amateur Radio

The students at ASD are extremely bright and are highly motivated to develop STEM careers. We had about 65 students elect to attend the two sessions that we presented. The kids showed a lot of interested in our presentations and demonstrations.

SPARK Day Classroom Activities

 

Explaining the HAB to the ASD Students at SPARK Day
Explaining the HAB to the ASD Students

We began each session with some classroom time where we explained what Amateur Radio is about and some of our club’s Amateur Radio projects. We talked about and showed components of our High Altitude Balloon Project, our Satellite Ground Station and our Field Day activities. The interest level among the kids was high and lots of questions were asked.

SPARK DAY GOTA Station

 

Making an HF Contact using our GOTA Station at SPARK Day
Making an HF Contact using our GOTA Station

We also put together an HF GOTA station in the lobby of the school. This gave the kids a chance to get on the air and experience Amateur Radio first hand. After the kids got over the usual “mic-fright”, they had a lot of fun.

We are looking forward to our next opportunity to participate in ASD’s SPARK Day in the fall. This is one of the most enjoyable events of the year for me.

Fred, AB1OC

Digital, Education and Training, Featured, General, Newsletter

Quicker-Turnaround Digital Modes in Experimental Stage for WSJT-X Suite

WSJT-X developer Joe Taylor, K1JT, weighed in to express his appreciation to all who shared their ideas and experiences using JT9 and JT65 modes during recent multi-hop E-skip openings on 6 meters.

“We are very much aware that a mode with most of the excellent characteristics of JT65, but with faster turnaround time, would be a big winner in such situations,” Taylor commented on behalf of the WSJT-X development team. “We are experimenting with several such possibilities. Tentative goals include 15-second T/R sequences, sensitivity around S/N = –20 dB, occupied bandwidth less than that of JT65, and capability to decode as many as 10 or 20 signals in a 2-kHz bandwidth.”…

Source: Quicker-Turnaround Digital Modes in Experimental Stage for WSJT-X Suite

This is something to follow if you are interested in the JT modes for HF and VHF communications. Our experience is that a new JT variant that would trade S/N margin for a faster QSO segment speed would be just the ticket on many of the HF bands as well as 6m.

Fred, AB1OC

Education and Training, Featured, General, Newsletter

New Book of Interest

2 Comments

All,

New member here, hoping to add some value! I am returning to amateur radio after a very long period of inactivity, and have been looking for some reading material to jump-start coming up to speed on more recent technology topics. I have discovered a new book which may be of interest to Nashua ARC members. This is actually a revised 4th edition (published 2017) of a book that has been around for some time. Title: Communications Receivers: Principles and Design. This is an engineering textbook, so it is quite technical but strikes a balance between theory and practice. A bit pricey, but it is a virtual goldmine of information, and includes hundreds of references and suggestions for further reading. At 600+ pages, it is not something most will read and understand in a few evenings. Greatly expanded coverage of SDR technology alone is worth the price, IMHO. I highly recommend this book for those who wish to gain an in-depth understanding of the topics covered. This book might be suitable as the basis for a series of Tech Night sessions.

Rick Boswell, K8EZB

Link to this book

Communications Receivers
Communications Receivers

Radio Amateurs Developing Skills Worldwide