Baofeng UV-5R Mini: Compact Dual-Band Powerhouse

Baofeng UV-5R Mini: Compact Dual-Band Powerhouse: A technical review of the Baofeng UV-5R Mini. 5W output, Bluetooth programming, and "FT2" digital mode experiment. Is it the new speed king of ultra-portables?

High Gain Collinear Antenna for 145 MHz and 433 MHz Bands

High Gain Collinear Antenna for 145 MHz and 433 MHz Bands: High-gain collinear antenna for 145 MHz and 433 MHz with 0.64λ elements and 0.25λ phasing for strong omnidirectional VHF/UHF performance

Build Your Own 6m Delta Loop Antenna: A Simple Weekend Project

Build Your Own 6m Delta Loop Antenna: A Simple Weekend Project: Learn how to build a simple and effective 6m Delta Loop antenna using wire, PVC conduit, and a 75-ohm matching section for the 50MHz band.

Build Your Own 6m Delta Loop Antenna: A Simple Weekend Project

Build Your Own 6m Delta Loop Antenna: A Simple Weekend Project: Learn how to build a simple and effective 6m Delta Loop antenna using wire, PVC conduit, and a 75-ohm matching section for the 50MHz band.

UR0GT Broadband Avia Antenna (RW4HVN Mod): The Ultimate Wideband VHF Antenna Guide

UR0GT Broadband Avia Antenna (RW4HVN Mod): The Ultimate Wideband VHF Antenna Guide: Detailed guide to building UR0GT Broadband Avia Antenna modified by RW4HVN. Covers dimensions, design principles, SWR performance, construction details

Bi-Square Antenna: A High-Gain design for upper HF and VHF

Bi-Square Antenna: A High-Gain design for upper HF and VHF: Build a high gain bi-square antenna for higher HF bands. Get 4dB gain over dipole on 10 meters with detailed calculations, matching solutions, operation tips.

How to Build a Reduced Size 40M Antenna – Complete DIY Guide

Want a smaller 40m antenna that still works great? This DIY guide walks you through building a reduced-size 40 m antenna from scratch — simple, effective, and perfect for limited space! 🛠️🌍

Check it out 👉 https://vu3dxr.in/how-to-build-a-reduced-size-40m-antenna-complete-diy-guide/

#HamRadio #40m #Antenna #DIY #RadioLife

40m Vertical Antenna: Compact Base-Loaded Design for Powerful HF Operation

Ready to Get on 40m with a Compact, Powerful Antenna? 🔥🚀

If you’ve ever wanted strong HF performance but didn’t have the space for a giant tower… this is for you! 🌍📡

👉 Check out this sleek 40m Vertical Antenna build — a compact base-loaded design that lets you operate on the popular 40-meter HF band without needing 10 m of mast or acres of yard! 🏠✨ You’ll be amazed at how a clever loading coil and smart design let this short antenna resonate just like a full-size vertical. 💪📻

📌 Why it rocks:
✔ Only ~3.4 m tall — perfect for balconies, rooftops & limited space 🏡
✔ Excellent DX on 7 MHz — regional by day, long-distance by night 🌐
✔ Easy DIY build with common materials 🛠
✔ Great for portable or home HF stations 🎒📻
✔ More efficient than you’d expect — and super fun to build! 🤩

Whether you’re a seasoned ham or a DIY enthusiast wanting to push your antenna skills further, this project is 🔝. Check it out here:
👉 https://vu3dxr.in/40m-vertical-antenna-compact-base-loaded-design-for-powerful-hf-operation/

Let’s get those QSOs rolling! 🗣️📡💬

Shortened Inverted V Antenna for 80 Meters (3.700 MHz)

Shortened Inverted V Antenna for 80 Meters (3.700 MHz): Build a high-performance shortened inverted V antenna for 80 meters. Compact design, loading coils, measurements, and installation guide for strong HF signals.

UR0GT Broadband Avia Antenna (RW4HVN Mod): The Ultimate Wideband VHF Antenna Guide

Looking to build a powerful wideband VHF antenna? Check out this ultimate guide to the UR0GT Broadband Avia Antenna (RW4HVN Mod) — packed with practical insights, step-by-step instructions, and performance tips. Perfect for ham radio enthusiasts and VHF explorers! 🙌

👉 Read more: https://vu3dxr.in/ur0gt-broadband-avia-antenna-rw4hvn-mod-the-ultimate-wideband-vhf-antenna-guide/

#HamRadio #VHF #AntennaDesign #DIYRadio #AmateurRadio

DIY 80m Magnetic Loop Antenna: A Compact Solution for Low Bands

DIY 80m Magnetic Loop Antenna: A Compact Solution for Low Bands: Learn how to build a compact 80m Magnetic Loop Antenna. Includes dimensions, capacitor specs, and tuning tips for efficient HF operation in small spaces.

W3DZZ Multi-Band Antenna 80m-10m Trapped Dipole

The W3DZZ Multi-Band Antenna has earned a reputation as one of the most reliable multiband wire antennas in amateur radio. Designed to cover five HF bands from a single feed point, it offers a simple alternative to fan dipoles or complicated matching networks. With only two tuned traps and ordinary wire, the antenna provides effective operation on 80, 40, 20, 15 and 10 meters.

What makes the design so successful is the way the traps divide the antenna electrically. On 40 meters and higher, the traps act as high-impedance barriers so that only the inner sections radiate. On 80 meters the traps behave as loading inductors, allowing the full length of the antenna to function as a shortened dipole. This clever approach gives multiband coverage without switching or tuners in most installations.

W3DZZ Multi-Band Antenna 80m-10m Trapped Dipole: 

Simple Speech Processor for Homebrew SSB Transceivers

Good speech processing can make a dramatic difference to how a low-power SSB signal sounds on air. In homebrew and QRP SSB transceivers,  transmitter audio is often clean but lacks average power, making signals sound weak during normal conversation. The compact Simple Speech Processor circuit shown here addresses that exact problem by increasing average talk power while preserving intelligibility and keeping distortion under control.

This design, originally shared and discussed on the Small Wonder QRP blog, has become popular among home constructors because it is simple, effective, and well suited for integration into BITX-style and other minimalist SSB rigs.

Simple Speech Processor for Homebrew SSB Transceivers

Shortened G5RV Antenna – DX Power in a Smaller Package

Shortened G5RV Antenna – DX Power in a Smaller Package: A compact, multi-band wire antenna based on the legendary G5RV design —specifically, a shortened version of G5RV antenna optimized for the 14-50 MHz range.

Building End Fed Half Wave antenna (EFHW) for 40M – 10M

 The End Fed Half Wave Antenna (EFHW) 40m – 10m antenna is one of the most popular and versatile multi-band antennas for amateur radio. It requires only a single support, is quick to deploy, and offers excellent performance across the 40m, 20m, 15m, and 10m bands. This design is perfect for operations like POTA (Parks on the Air) or SOTA (Summits on the Air), or simply for hams with limited space.

Building End Fed Half Wave antenna (EFHW) for 40M – 10M:

VHF Collinear J-Pole : The DIY Super J-Pole Antenna

VHF Collinear J-Pole : The DIY Super J-Pole Antenna: Take your VHF/UHF station to the next level with DIY Super J-Pole guide. Learn how to build this collinear antenna for maximum gain and clear long communication

94-Foot Multi Band Doublet Antenna – Simple All-Band HF Wire antenna

94-Foot Multi Band Doublet Antenna – Simple All-Band HF Wire antenna: This antenna is not fancy. It uses no traps, no coils, and no complicated matching networks at the feed point. What it offers instead is clean, balanced operation and very low loss, especially when compared with multiband antennas fed only with coax. Many operators who try a doublet for the first time are surprised at how alive their receiver sounds and how easily contacts are made.

Near Vertical Incidence Skywave (NVIS): The Definitive Guide to Reliable Regional HF Radio

Ever wonder why your HF signal skips over the next town but hits the next continent? 🌎

Master NVIS (Near Vertical Incidence Skywave) to close the gap! Perfect for regional nets and emergency comms when the repeaters go down.

Check out the definitive guide here: 👇 https://vu3dxr.in/near-vertical-incidence-skywave-nvis-the-definitive-guide-to-reliable-regional-hf-radio/

#HamRadio #RadioOperator #NVIS #VU3DXR #AmateurRadio