[SFDX] JTTY: WSJT text mode, ESP32 is an SDR, the Yagi turns 100, more...

Sat Oct 3 10:16:18 EDT 2026

And from the Space Coast...
*W2PH streaming radio <https://t.e2ma.net/click/vivnqo/jx642mcf/vivnmbb>*
A premier internet radio station featuring classic rock/oldies 24/7 
streaming with live DJ sessions.
W2PH Radio

Amateur Radio Weekly <https://t.e2ma.net/click/vivnqo/jx642mcf/veonmbb>

*Issue 441 *October 3, 2026

  *Top Links*

*JTTY: A WSJT-X mode that ignores the clock 
<https://t.e2ma.net/click/vivnqo/jx642mcf/b7onmbb>*
K1JT and the WSJT team release WSJT-X 3.2.0-rc1 with JTTY, a weak-signal 
keyboard mode built for RTTY contesting.
DXZone

*Projects find hidden SDR capabilities in ESP32 microcontrollers 
<https://t.e2ma.net/click/vivnqo/jx642mcf/rzpnmbb>*
Several ESP32 models can now be used as an internal SDR covering 2.2–2.7 
GHz, plus 4.8–6.0 GHz on the ESP32-C5, with up to 80 MS/s sample rate 
and roughly 13–54 MHz of analog bandwidth, depending on the chip.
RTL-SDR

*Successful M17 transmission using an unmodified Retevis C62 
<https://t.e2ma.net/click/vivnqo/jx642mcf/7rqnmbb>*
The most important thing is that the C62 radio is available at about $45 
and does not require any hardware modifications to run the M17 mode.
M17 Project

*What’s new at Digital Library of Amateur Radio & Communications 
<https://t.e2ma.net/click/vivnqo/jx642mcf/nkrnmbb>*
We scanned 179 issues of The Cornell-Dubilier Capacitor. This was a 
technical/service newsletter for the radio and TV repair trade published 
by Cornell-Dubilier Electric Corp., another capacitor manufacturer. The 
Capacitor was published from 1937 through 1964; we have issues spanning 
1939-1960.
Zero Retries

*Call sign grace period: A hard lesson learned 
<https://t.e2ma.net/click/vivnqo/jx642mcf/3csnmbb>*
Don't forget to pay the renewal fee!
K4HST

*GOGUFW Messenger <https://t.e2ma.net/click/vivnqo/jx642mcf/j5snmbb>*
Turn a $25 Quansheng UV-K1 into a radio-to-radio text messenger.
HamRadio.My

*JS8Mail <https://t.e2ma.net/click/vivnqo/jx642mcf/zxtnmbb>*
Reliable offline-first radio mail above an unmodified JS8Call instance.
Steve Netting

*Leo.space <https://t.e2ma.net/click/vivnqo/jx642mcf/fqunmbb>*
Track launches, satellites, weather, and space communications from a 
single command center.
Leo.space

*W2PH streaming radio <https://t.e2ma.net/click/vivnqo/jx642mcf/vivnmbb>*
A premier internet radio station featuring classic rock/oldies 24/7 
streaming with live DJ sessions.
W2PH Radio

*Pi Pico recreates the Heathkit Pocket Packet 
<https://t.e2ma.net/click/vivnqo/jx642mcf/bbwnmbb>*
Once upon a time, you might have squirted data about the airwaves using 
something like the Heathkit HK-21 Pocket Packet.
Hackaday

  *Upcoming Events*

EN100NP on the Air to Honor 100th Anniversary of Symon Petlura 
<https://t.e2ma.net/click/vivnqo/jx642mcf/r3wnmbb>
*June 8, 2026 — December 31, 2026 *

ISS SSTV Weekend Sprint <https://t.e2ma.net/click/vivnqo/jx642mcf/7vxnmbb>
*October 2, 2026 — October 6, 2026 *

Fire Prevention Week Special Event Highlights Fire Safety 
<https://t.e2ma.net/click/vivnqo/jx642mcf/noynmbb>
*October 4, 2026 — October 10, 2026 *

Zero Retries Digital Conference 2026 
<https://t.e2ma.net/click/vivnqo/jx642mcf/3gznmbb>
*October 16, 2026*

See more events <https://t.e2ma.net/click/vivnqo/jx642mcf/j9znmbb>

  *Video*

*Testing the DX Launcher <https://t.e2ma.net/click/vivnqo/jx642mcf/z10nmbb>*
The DX Launcher is a high-performance compressed air antenna launcher 
designed to send weighted tennis balls over tall trees with precision 
and ease.
KB9VBR

*Massive vintage radio collection now on display 
<https://t.e2ma.net/click/vivnqo/jx642mcf/fu1nmbb>*
Daughter keeps her hero father's memory alive.
WTVR

*Department of Public Safety recruiter reaches across the globe 
<https://t.e2ma.net/click/vivnqo/jx642mcf/vm2nmbb>*
As a Ham Radio operator, he extends his talkative nature to people 
around the world. Listen as he chats with people on the Eastern Seaboard
Minnesota Department of Public Safety

*The Yagi turns 100 <https://t.e2ma.net/click/vivnqo/jx642mcf/bf3nmbb>*
Let's look at what led up to the invention and what has happened since.
W8WWV

  *Editor's Corner*

Hi, my name is Cale (K4HCK) and I'm the editor of Amateur Radio Weekly.

The most-clicked link from last week's newsletter 
<https://t.e2ma.net/click/vivnqo/jx642mcf/r73nmbb> was ARRL's article 
about the potential for RADE digital voice 
<https://t.e2ma.net/click/vivnqo/jx642mcf/7z4nmbb> to displace SSB just 
like SSB displaced AM as the mode of choice so many years ago. If you 
haven't listened to a clip of RADE in action, do yourself a favor and 
listen now <https://t.e2ma.net/click/vivnqo/jx642mcf/ns5nmbb>. The level 
of fidelity available in such narrow bandwidth is truly impressive.

Zero Retries Digital Conference 
<https://t.e2ma.net/click/vivnqo/jx642mcf/3k6nmbb> is just 2 weeks away! 
I'll be presenting at ZRDC26 with a focus on /New Tech Hams/, an 
emerging persona in the hobby that is disrupting a lot of the old trends 
we might be familiar with, from voice modes to radio clubs.

I'm also attending Pacificon 
<https://t.e2ma.net/click/vivnqo/jx642mcf/jd7nmbb> and will be sharing a 
booth with Zero Retries 
<https://t.e2ma.net/click/vivnqo/jx642mcf/z57nmbb>. Stop by to say "Hi" 
and grab a sticker.

General feedback regarding this newsletter or the content within is 
always welcome. Got a link to share? Simply hit reply.

73
Cale
K4HCK

<https://t.e2ma.net/click/vivnqo/jx642mcf/fy8nmbb>

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in Murfreesboro, Tennessee.
Thank you for reading.
73

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