Zero Retries 0117
2023-09-22 — Revisiting the KM6LYW Radio DigiPi Project, My Letter to ARRL Regarding Elimination of Symbol Rate from US Amateur Radio Regulations, Latest AREDN Updates
Zero Retries is an independent newsletter promoting technological innovation in Amateur Radio, and Amateur Radio as (literally) a license to experiment with and learn about radio technology. Now in its third year of publication.
About Zero Retries
Steve Stroh N8GNJ, Editor
Jack Stroh, Late Night Assistant Editor Emeritus
In this issue:
My Letter to ARRL Regarding Elimination of Symbol Rate from US Amateur Radio Regulations
Web version of this issue - https://www.zeroretries.org/p/zero-retries-0117
Request To Send
Editorial by Steve Stroh N8GNJ
Apologies to email subscribers for this issue shipping a few minutes late.
I’ve reached a new level on Zero Retries when I want to quote myself… and cannot find the reference 😐 With 116+ issues now, even the search function didn’t help. I think what I’m looking for was a comment reply, that’s relevant to the amount of info covered in this issue, something like…
One of the agonies of the format of Zero Retries as a weekly newsletter is that it represents a brief snapshot in time about what I found Zero Retries Interesting and could fit into one week’s issue of Zero Retries. Each issue of Zero Retries just can’t really portray the bigger picture of the all the fascinating and interesting technological innovation that’s going on in Amateur Radio and adjacent to Amateur Radio.
That’s especially true this week.
Update 2023-09-29 - Found my quote!
On Mastodon 2023-08-31:
@oh2cil@fedi.oh2cil.radio said
@n8gnj Thank you for this, I very much enjoyed the MMDVM-TNC and WINTNC bits, seems there is still hope for amateur radio data networking, and maybe even reason to get an MMDVM one of these days.
I replied:
Steve Stroh N8GNJ@n8gnj@mastodon.radio
@oh2cil Markus - One of the agonies of a periodical like Zero Retries is that when looking at one issue like ZR 0113, you merely get a snapshot of what's happening that I had time / room / inclination to feature THAT week. Zero Retries exists because there is a LOT going on in Amateur Radio technological innovation (especially networking) that ISN'T getting reported elsewhere, especially in the "mainstream". Suggest digging deep into the back issues for a bit more on AR networking.
Catching up on Acknowledging Paid Subscribers
While I acknowledge Founding Members of Zero Retries1 in every issue of Zero Retries
- Founding Member 0000 - Steven Davidson K3FZT
- Founding Member 0001 - Prefers to Remain Anonymous 01
- Founding Member 0002 - Chris Osburn KD7DVD
- Founding Member 0003 - Don Rotolo N2IRZ
- Founding Member 0004 - William Arcand W1WRA
- Founding Member 0005 - Ben Kuhn KU0HN
- Founding Member 0006 - Todd Willey KQ4FID
… I’ve neglected to acknowledge Paid Subscribers as they became Paid Subscribers (often from originally subscribing as free subscribers).
I apologize for not doing so from when I activated payment options on 2023-06-29; again, it’s been a busy summer.
Now correcting that neglect, Thank You, Paid Subscribers to Zero Retries:
- Prefers to Remain Anonymous 02
- Florian Lengyel WM2D
- Prefers to Remain Anonymous 03
- John Simmons NK0K
- Orv Beach W6BI
- Paul Elliott WB6CXC
- Prefers to Remain Anonymous 04
- Prefers to Remain Anonymous 05
- Prefers to Remain Anonymous 06
- Prefers to Remain Anonymous 07
- Prefers to Remain Anonymous 08
- Prefers to Remain Anonymous 09
- Prefers to Remain Anonymous 10
- Don Coker KM6TRZ
- Sid Siegel
- Prefers to Remain Anonymous 11
I’m particularly grateful to
- Steven Davidson K3FZT
- Prefers to Remain Anonymous 01
- Prefers to Remain Anonymous 02
- Florian Lengyel WM2D
who pledged their financial support to Zero Retries even before I activated Payment Options on 2023-06-29.
In the future, I will mention Paid Subscribers as they become Paid Subscribers, and will mention all of the Paid Subscribers periodically.
I am very, very grateful for all financial support for Zero Retries.
Revisiting the KM6LYW Radio DigiPi Project
By Steve Stroh N8GNJ
Now that Raspberry Pi units are becoming more widely available (see rpilocator for worldwide availability), and DigiPi v1.7 was recently released, it seemed an appropriate time to revisit the DigiPi Project.
The DigiPi is the ultimate hot-spot for all amateur radio data modes, including APRS, ax.25, winlink email, ft8, js8cal, slowscanTV, PSK31, packet and even CW. The implementation is an elegant, inexpensive, low-power, open-source Raspberry-Pi--based amateur radio data transceiver, managed exclusively by web browsers or smart-phone apps, with no bulky keyboards, monitors or complicated wiring.
As seen in the illustration above, the DigiPi is designed around the form factor of a Raspberry Pi Zero / Zero W / Zero2 W, but it’s not required to use those compact units. DigiPi will work with nearly any Raspberry Pi (for performance, the more modern Raspberry Pi’s work a bit better, but a Raspberry Pi 4 is probably overkill (unless you already have one that’s not being used).
DigiPi is a project of Craig Lamparter KM6LYW, who hosts the KM6LYW Radio YouTube channel, which is sufficiently, consistently Zero Retries Interesting to merit inclusion in the Closing the Channel section in every issue of Zero Retries.
