Latest posts tagged with #hamchallenge on Bluesky
I sent a "thank you" card via snail mail to Brett, KE9BOS, developer of vailmorse.com to thank him and the team behind the platform. I use it regulary to practice.
HC07S @hamchallenge #amateurradio #cw #morse #hamchallenge
The nearest access point to Hamnet is only 1.6 km away as measured in a straight line, but i am on the second floor with many houses in between, so I am unable to establish a radio connection.
I connected to Hamnet via VPN and browsed around a bit. The web part seems a bit like the early […]
I tried some repeaters on Echolink in the last days, but didnt have luck to get someone. Today I called CQ via Echolink and had a nice QSO with Harry G0LHX from England. Well we talked about the weather and exchanged late seasons greetings :) anyway... the challengs is not solved yet. hc01 […]
last year I ditched the #hamchallenge from my list of things at some time, because of health problems. I am happy there is a @hamchallenge in 2026 again. Lets see how far I get this year 📻
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 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
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
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
Display of FT-818 tuned in to 11.634 Mhz
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
@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 […]
My hand ist holding a Baofeng UV-5R with two little spoons attached to it as an antenna.
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
Photo showing Goal Zero Escape 150 battery pack connected to DIY volt/amp monitoring setup. Battery powering ICOM IC-705 station listening on 10 meters.
Photo of ICOM IC-705 tuned to 20 meters.
@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 […]
Map of Berlin with green points indicating FM amateur radio repeaters. One in the middle is labelled DB0BLX
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
A mockup of a movie poster that says 24 Hour POTA People.
So the @hamchallenge @hamchallenge this week is to make a xOTA contact. Got my first SOTA contact earlier this week on 20m, and a few 40m POTA contacts for the first time.
Considering the conditions I'll take 3 contacts as a win!
#HamChallenge
An image of a space suit with the title 'Humans in space' and the subtitle 'SuitSat-1 20th Anniversary' in English and Russian. The image is not completely clear, there are green lines due to noise
I managed to receive one of the images sent by the ISS today, using my little Baofeng UV-5R and the Robo36 app on my phone. The image is not perfect due to noise but I'm still really happy it worked.
Counting this as #hamchallenge HC42S and HC10S 😎
@hamchallenge
Screen grab of first matching approach results showing 50 Ohm to 36 Ohm match.
Screen grab of second matching approach results showing 50 Ohm to 36 Ohm match.
@hamchallenge HC34S Match an Impedance. Successfully matched 36 Ohms to 50 Ohms at 7 MHz. Created a quick posting with the two solutions over at qsl.net/n8dmt/ham-challenge-hc34... (Did not want to be spoiler to those who […]
[Original post on mastodon.radio]
Screen capture of the 10-30MHz RF amplifier simulation running in LT-Spice on the Win11 Ham PC. The upper portion is the simulation results showing gain decreasing slightly from 32.6 to 28.8 dB over the frequency range. The lower portion shows the schematic, including 4.2V bias network for the IRF510 devices.
@hamchallenge HC22S #HamChallenge: Simulate an electric circuit. Used free LT-Spice to model a ~35W P-P RF power amplifier. Included a simple output graph showing dB gain of the circuit. Other possible simulations include input return loss, output match, time […]
[Original post on mastodon.radio]
View from high above the ground in Hoffman Estates, IL. Horizon is clearly visible from this vantage point. VHF/UHF HT is present on the window ledge.
Completed an unusual location QSO with John K9WIC on morning of March 14. Was up on the fifth floor of a senior independent living facility and looking out the south side window onto the golf course below. Repeater was a-bit north of this location — suspecting […]
[Original post on mastodon.radio]
Lit sign promoting the 2025 MSSA Cnnual Conference and Expo.
Therapy Llamas with a few human handlers. It's black and white and a neck longer than the person next to it.
A slide detailing the effects of stress on the brain.
I've been bad at keeping up with the #hamchallenge - maybe as I'm more prepared.
Still, decided to take on this week's one - live at the 2025 Minnesota Social Service Association Convention in downtown Minneapolis (which relates to my day job working […]
[Original post on mastodon.hams.social]
For those interested in antenna modeling/simulations and/or working #HamChallenge HC19 @hamchallenge, but concerned about the complexity of these activities, I would like to share the easiest-to-use (free) program I’ve found so far: AN-SOF. Have SW loaded on my ham Win11 machine and ready to […]
@VE7WYC Would not be too hard to build “one” of those using PVC pipe with #12 copper (house) wiring inside. Use radials instead of ground screen. Might be fun to simulate in the upcoming HC19 #HamChallenge “simulate an antenna” activity. @hamchallenge #HamRadio (edited)
CD-41 charging base exhibiting the dreaded "GREEN LED STUCK ON" problem (blown Q2 within).
Inside PCB view of the CD-41 drop in charger.
Close up of the SOT-23 Q2 FET on the board in between the contacts.
Post repair photo showing the red LED on and the battery charging in the charger base. Success!
#HamChallenge HC45S @hamchallenge Completed repair of Yaesu CD-41 drop in charger base that had a failed Q2 FET within (green light on always). Have had this occur on another CD-41 and replaced Q2 successfully following video guide from Jim AG6IF. A quick […]
[Original post on mastodon.radio]
@mntmn Free 3D EM modeling and simulation software recommendations are CST (non-commercial-use version) and ELMER. Unfortunately neither are easy to use for newer folks.
There are a few much easier to use tools for lower frequencies. I plan to learn and use MMANA-GAL (free version) for an […]
Photo of NanoVNA-H4 measuring VSWR of the DIY 2 meter Halo antenna. VSWR is 1.36:1 at 144.200 MHz fed with a 12 foot length of RG-58C coax.
Holding overhead photograph of the DIY 2 meter Halo antenna. Antenna is about 12 inches in diameter.
Another photograph of the DIY 2m Halo antenna constructed from #14 house wire.
Photograph showing details of the feed and matching. Wire ends are separated by about 1/4" and held in place with a cut-off zip tie length with additional zip ties holding the wire to the separator.
#HamChallenge HC33S Build an antenna and make a contact with it.
@hamchallenge
Built a 2m halo horizontally polarized loop antenna to try to make local 2m SSB contacts. Referred to KP4MD’s QSL webpage on halo antennas. Used #14 solid wire and a SO-239 […]
[Original post on mastodon.radio]
