J-P. Amateur radio experiments, hamradio, propagation, antennas, noise victim, hobby scientist, NL13951, VERON. JO21hs.

Joined September 2010
1,354 Photos and videos
🅿️🅰️9️⃣❌ retweeted
Just found my RX antenna featured in an AI-generated brochure. The AI gave it four guy ropes and made the loops perfectly round. Looks like it's already started redesigning my hardware. 😄 I suppose that's a sign of popularity!
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These SNR figures are putting the setup here in the top 20 KiwiSDR and WEB-888 receivers worldwide. And the setup is not optimal yet. That is way beyond my expectations. #hamradio
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Jullie maken het wel heel bont @ZiggoWebcare. € 2,50 per maand extra betalen voor ESPN waar ik niet om gevraagd heb. Alsof je bij de bakker twee broden koopt en dan verplicht koeken moet afrekenen, die je nooit gaat eten.
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The Wellgood v4 loop peaking over the hedge.
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First time receiving an FT8 spot from South America with the WEB-888 webSDR and Wellgood loop. So much less nighttime noise at the new QTH. #hamradio
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With the recent move to the new QTH, the noise floor on my webSDR dropped significantly. I am actually hearing things I haven't heard for a very very long time. First screenshot = old QTH (urban) Second screenshot = new QTH (rural) #hamradio
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Anyone used an automatic tuner like LDG, MFJ or MAT as a remote tuner at the antenna itself?
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I own a CG-3000 but looking for an ATU that can handle 500W PEP.
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At some time antennas on the roof were widely accepted. Nowadays our ham antennas are the neighbour's reason for slow wifi, bad 5G and HOA nightmares. I once had a neighbour thinking I was spying for the government... #hamradio
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New QTH next month. Idea for the new antenne setup: Double Zepp 2x ±14m legs in inverted V with center 14m up a mast. Feed it through a CG-3000 remote auto tuner, 1:1 balun and 14m 450 Ohm ladder line. Should cover 80 meters up to 10 meters and possibly 6 meters. #hamradio
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🅿️🅰️9️⃣❌ retweeted
Your phone can be a useful tool to check fuses. #hamradio #hamr #AmateurRadio #electronic #DIY #repair #troubleshooting #fuse #phone #tool
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🅿️🅰️9️⃣❌ retweeted
The most important Icom IC-7300 MK2 off-grid feature is its low receive current, sometimes as low as 0.68A. Efficiency matters on battery & solar, especially for stations like my Winlink RMS Gateway that spends most of its time listening. #oh8stn #hamradio #icomic7300mk2
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30 years ago. Those were good times.
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Ferrite toroids are not elastic. They won't bounce back when dropped on a concrete floor. They will actually become double letter C. The C's in concrete...
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🅿️🅰️9️⃣❌ retweeted
Het volgende RF-webinar wordt verzorgd door Hans DC1EHG/PA0EHG op zondag 22 februari 2026 om 15:00 uur met een bijzonder interessante presentatie over ‘Radar in de luchtvaart’. Alle details lees je op veron.nl/nieuws/rf-seminar-l… #RadioIsMagie #BeleefHetMetDeVERON #Radar
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Preparations ongoing at PI4VNW for PACC contest. Give us a call! #hamradio
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🅿️🅰️9️⃣❌ retweeted
Kom naar 46e Friese Radio Markt, dé ontmoetingsplek voor radiozendamateurs, elektronicaliefhebbers en techniekfans, op zaterdag 30 mei 2026 van 9 tot 15 uur in Zalencentrum De Buorskip aan de Vlaslaan 26 in Beetsterzwaag veron.nl/nieuws/de-46e-fries… #RadioIsMagie #BeleefHetMetDeVERON
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Some Cobweb antennas have a 1:4 balun transforms impedance and blocks common mode currents. You can recognize those baluns as built on two separate ferrite toroids. My AWK Cobweb only has a single toroid 1:4 transformer built on a single toroid. To work properly... (1/2)
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I added a home made common mode choke (left in the picture). (2/2) based on a FT240-61 toroid with 12 bisectional turns of PTFE insulated wire. #hamradio
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