"The 52 week ham radio challenge" deserves to be know much more widely. Fantastic list of things to do in #HAM :
www.hamchallenge.org

RE: https://social.makerforums.info/@mcdanlj/115791698863793961

@hamchallenge I guess this counts as #hc51s — a lot of what I wrote here I previously wrote in answers to various questions people actually asked, either on Mastodon or on Reddit, so that sounds like public impact.

I might be the last person to do so, but today I tried FT8 for the first time. Made a few successful QSOs on 17m and 30m, the one with KA9FOX was a real DX-success for me (with 5W and and Inverted Vee on the balcony) #hamchallenge HC31S @hamchallenge

@hamchallenge #hc43s I've published several 3D printable designs for #hamradio, all designed with #freecad.

My favorite is my single-paddle key system which I use regularly. I own Kent and Putikeeg keys, and still use my own creation most. I even […]

[Original post on social.makerforums.info]

@hamchallenge And since @df5go is a participant in the #hamchallenge as well, this also counts as HC30S

And yesterday, I completed another @hamchallenge:
I made my very first contact in morse code. It was over a very short distance and we agreed on the contents of the QSO beforehand, but I managed to understand what @df5go sent and successfully sent my own callsign and report. So HC38S
#hamchallenge

@hamchallenge Challenge for Week 40 was to write a poem on my biggest #hamradio pet peeve.
Well, here we go: HC40S

They hear my voice
and they rejoice
"Oh, a YL!", they shout
but I'd rather not stand out
or at least have the choice.

Disclaimers:
- I'm bad at poems. Always have been - that's […]

Like @hamradio2dot0.bsky.social has done, I am issuing a challenge! This stemmed from a livestream about 2 meters!!

Key up on 2m Simplex daily & more! Tell your ham friends, tell your clubs, let's get 2m active again!

youtube.com/shorts/6cvbn...

#hamradio #amateurradio #challenge #hamchallenge

@hamchallenge Since the week in the US is considered to start on Sunday, my 10 CW POTA QSOs on Sunday definitely count as #hc38s within the week.

At the beginning of this year, I had not finished learning all the morse symbols. Now ¾ of my QSOs have been CW, I hunt POTA at 20WPM, run POTA at […]

One of my many simultaneous ongoing #hamradio projects are a set of bandpass filters. I forgot until now that my uSimmics work with various filters counts as @hamchallenge #hc22s — even though I haven't built them yet, I _have_ simulated them (and […]

[Original post on social.makerforums.info]

@hamchallenge
Other gems: Voice of Vietnam broadcasting in German (in the 25m band) and Radio New Zealand on 15.720MHz 😲

Most stations we heard were from Radio China International, though (broadcasting in several languages like Hungarian, Czech, Russian...
#hamchallenge HC32S

Taking advantage of the mild weather tonight and trying to listen to foreign broadcast stations for #hamchallenge week 32 and just found Voice of Korea broadcasting from Northern Korea in English! Definitely HC32S!
@hamchallenge

Although I've not managed to complete any of @hamchallenge to date, I feel that an IOTA activation barely a week after the proposed week for #hc29s is worth tooting :-)

The 9V1IO[TA] team[1] performed our customary "Island Station - DXpedition" activation […]

[Original post on f.rolandturner.com]

@hamchallenge Apparently this was also an ahead-of-schedule #hamchallenge #hc33s

I built a six-band linked dipole with links for 10m, 12m, 15m, 17m, 20m, 30m, and 40m meant for inverted-V deployment, to be an efficient, mostly isotropic radiator with high Q on one band (at a time). I want to be […]

Squeaking in at the end of @hamchallenge week #hc29s — I played #pota today, hunting CW park-to-park, to test my new QRP linked dipole, entirely of my own design. Used a 10oz throw weight to put a slippery UHMWPE line over a branch and pull the dipole […]

[Original post on social.makerforums.info]

@hamchallenge #hc24s — Over the past few days, I made and improved a #morsewalkerl#cw="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">PR adding Field Day support to the Open Source #MorseWalker #CW drill app.

It hasn't yet been merged, but you can practice for Field Day and leave any feedback in the PR or in this thread here.

So delighted that W6NYC Henry […]

It took me a while to come up with an idea for the "unusual antenna" #hamchallenge but after some experimenting, let me introduce you to the "Di-Spoon"! I had a successful QSO with @df5go on 70cm over 500m to our local parc, so HC12S! More tests to follow.

@hamchallenge

@hamchallenge HC46S Write a useful computer program. Created SW interface to read a Mini-Circuits ZX47-55 RF Detector using an Digilent AD3 interface module. Used free LabVIEW Community Edition for programming environment. SW provides a nice stable readout of […]

[Original post on mastodon.radio]

@hamchallenge #hamchallenge HC36S Operate your station from battery power for a day. GoalZero Escape150 powered my IC-705 station for the day. Not a lot of transmitting (busy with other things), but battery still more than half-full after 10 hours. Will use […]

[Original post on mastodon.radio]

@hamchallenge Looking over the listing shows HC28 to be of interest (working 6m ES-skip is always fun). Issue is that my indoor mag loop does not cover 6m (only up to 10m).

Need to set a mental reminder to review this challenge again after setting up a temp OUTDOOR antenna over 2024 ARRL Field […]

@hamchallenge HC18S Make a contact in digital voice mode. Completed a digital voice QSO on 8-May-2025 with Jim, WB8HMD on DMR digital via the K9VI Crystal Lake, IL repeater. Used TriStateDMR Talk Group 4649 (network) and TG 8 (local RF, TS1 CC04).
#hamchallenge #hamradio #dmr #tristatedmr

@hamchallenge HC17S What VHF/UHF repeater is closest to your location (and how did you determine this)?

Using RepeaterBook App on iPad with GPS enabled yielded my location in the title bar, then searched for closest repeaters of any type to meet this challenge.

Closest repeater at 5.3 Miles NE […]

I used https://repeatermap.de/ to check for FM repeaters close to where I live and found that since the beginning of the year, there is DB0BLX in the middle of Berlin. Can't try using it since I'm not at home currently but will try when I'm back.
#hamchallenge HC17 @hamchallenge