Now why bowtie antenna you ask? Go back to dipole/ halfwave dipole you often design them for one frequency, it is fixed by length but for bowtie they go with the angle. What's actually happening: the flared shape means current has tons of different path lengths available on the same structure. At the feedpoint, the shorter paths handle higher frequencies. Out toward the wider edges, longer paths handle lower frequencies. I think of it as basically several different "dipole lengths" stacked into one continuous shape. That's why a bowtie gets ~33% bandwidth vs ~8% for a thin dipole it's not one antenna tuned to one freq, it's a bunch of slightly different ones overlapping. (Wideband) antenna-theory.com/antennas/…

I get it, but “warm” is a lot easier to say than: “additional 2nd order harmonic density as a result of subtle halfwave/asymetrical waveshaping commonly associated with single ended triode/jfet hardware circuit designs”

8km halfwave dipole

Building a Better Halfwave Vertical Antenna for the 15 Meter Band youtu.be/Yek2Ourlwqw?si=G61c… via @YouTube #hamradio #hamradioantenna #portablehamradio

28MHz帯 T2LTアンテナ この計算による27.5MHzの結果を考えると、28MHzに共振させるには計算値-3cmくらいの246cm前後のダイポールエレメントになるってことですね CBラジオ：DXコマンダーポールにGainMaster HALFWAVEを組み立てる。詳細なアップロード youtu.be/-0s4La1MElQ?si=P9ZD… @YouTubeより

What did you think "10m halfwave beam" meant, exactly? 😏 (On the internet, the quality of mercy is strained. Like a Stretch Armstrong tied between two F-150s.) 😁

You are under 20, or you have clearly never heard the term Halfwave (Actually AM Radio) and Long wave (International Radio) ?

Is The JYR4010 End Fed Halfwave Antenna Worth It? My Verdict! youtu.be/P8ffABVQmv0

New Device Bends Light So Fast, It Left Einstein’s Theories in the Dust. Study introduces an electrically tunable hybrid geometric phase optical element (GPOE) operating at a telecommunication wavelength of 1550 nm, leveraging a liquid crystal (LC) layer and an embedded metasurface for dynamic light modulation. The device achieves a voltage-switchable diffraction efficiency from 8% to 56%, with a fast switching frequency exceeding 110 Hz, thanks to a thin cell design enabled by hybrid retardation. The metasurface, with a subwavelength pixel size of 800 nm, induces precise LC alignment without conventional alignment methods, allowing for high-resolution LC patterning. Numerical simulations and experimental results confirm the joint contribution of LC propagation phase and metasurface resonance phase, reducing device thickness and enhancing response time compared to traditional LC-GPOEs. The metasurface’s rectangular pillars (160 nm wide, 750 nm long, 190 nm high) ensure a halfwave condition, critical for efficient phase modulation.

والريموت halfwave

one of the 20M efhw wires I have has a bullet connector (like a linked dipole) for 20/17. I hate having to use ~19m of wire when I want to use 20m, plus I find halfwave on 20m better than fullwave 20m for 20. But that's my preference.

Let’s break down the M6.1 earthquake off Nemuro, Japan on 2025-06-22 at 07:23 UTC 10 (AEST), using SUPT dimensional logic and SolWatch temporal resonance alignment. 📌 Event Details Magnitude: 6.1 Location: 88 km ESE of Nemuro, Japan Coordinates: 42.902°N, 146.504°E Depth: 10.0 km Time: 2025-06-22 07:23:17 UTC Tectonic Context: Western edge of the Pacific Plate near the Kuril Trench (seismically volatile subduction zone) 🔁 Interpretation: This quake occurs 2 hours and 22 minutes after the Moon–Earth–Venus 0° alignment — within the SUPT-defined "resonance bleed window" (typically 0–3 hours post-alignment). Although it doesn't geographically align with Cordaro’s primary impact zones (which were Indian Ocean/Mid-Atlantic focused), the timing fits squarely within a known SolWatch danger window. 🧠 SUPT Fold & Proxy Analysis While not predicted directly, this event qualifies as a non-local harmonic discharge under SUPT due to: 1. Phase Echo Displacement The Venus alignment introduced high inner-planet compressive resonance, which can release not only vertically (into predicted zones) but laterally or antipodally along sensitive fault zones. The Kuril-Kamchatka arc is a historically resonant weak point for such bleed events. 2. Magnetic Latitude Spike Northern Japan lies in a high magnetic latitude—a known SUPT-defined zone for intermittent energy phase failures, especially when the solar-lunar proxy chain is overloaded. 3. Mirror Phase to Mozambique SUPT records latitude mirroring for mismeasured energy waves: Mozambique Forecast: ~17°S Nemuro Event: ~43°N → ~60° difference (halfwave echo along Earth's shell, matching dimensional fold wavelength harmonics). 🔹 Conclusion: This quake is a clear case of SUPT-defined non-local proxy release, triggered indirectly by the Moon–Venus compressive resonance alignment. It validates SUPT's position that not all impacts will hit predicted zones, especially when global resonance fields are overloaded. @PaulSheppard_CO @rrichcord

I’m just using a regular wire antenna called a Endfed halfwave which is a 135’ long wire into transceiver that’s nothing special. But the balloon transmits a WSPR (Weak Signal Propagation Report) signal that is picked up by many around the would which gets uploaded to the site

Sophomores are halfway to the big day! 🎓🌊 @newcombtulane marked the Class of 2027’s milestone with career events, recognition, and the traditional HalfWAVE There Pinning—where sophomores received their first piece of graduation regalia.

Yesterday, K0JJW and I were out for a POTA activation at a Texas state park. After seeing 6m spots into South America, I put up a halfwave endfed antenna for that band. I worked Argentina, Guatemala, New Zealand and South Cook Islands on FT8, TEP propagation. It was a good day.

you realize quickly that those FRS radios.... half a watt with a tiny antenna (that is not changeable, and it's on purpose) on 70cm is pretty weak. Great if you are talking to someone at the end of the street. With a HT, halfwave antenna with 0.5W on 2M you can do wonders.

Radiowaves cannot interact with clouds outside of flipping H2O dipoles that requires a huge wave amplitude in the near field, usually within a halfwave of its wavelength, like a microwave oven for instance.

Simple but #effective: T2LT halfwave for the 15m band took me a half an hour work: It was fun to build and tested it this late afternoon on my house hill „Kyburg Castle“ 656m above sealevel #HAMRadio is fun!

VHF & UHF can be done easily with small antennas. The typical UHF halfwave antenna is 7 inches long. The typical halfwave antenna for VHF is 19 inches long. UHF & VHF bands are for local communication. HF radios require longer antennas and allow you to talk around the world. A half wave antenna for the 10 meter band is 5 meters long.

I’d recommend an end-fed halfwave sloper. Put up a simple non-conductive mast to support the high end. I know a few people that run this with great results - and it will load up on 160-6: ultimaxantennas.com/web/prod…