Amateur Radio Resources

Amateur Radio Antenna Collections

Amateur Radio Antenna Collections is a comprehensive hub featuring a wide range of antenna designs for HF, VHF, UHF, and portable operations. Explore dipoles, verticals, loops, Yagis, J-poles, wire antennas, magnetic loops, and homebrew projects with construction details, tuning tips, and practical operating advice. Whether you’re a beginner or an experienced ham, this collection helps you build better antennas and improve on-air performance.

HF Wire Antennas	40-10m OCF Antenna \| Windom Antenna for 80-10 \| Compact 40M Magnetic Loop Antenna \| The Mini G5RV Antenna \| Shorty 4020 Antenna \| Multiband OCF Dipole \| Double Dipole Antenna for 80–10 \| 20m Stealth Antenna \| 80 Meter Short Dipole Antenna \| Open Sleeve Dipole Antenna for 40-20 \| Shortened EFHW Antenna \| 3-Band HF Antenna \| City Windom Antenna \| 20 Meter Folded Dipole Antenna \| Low Height Loop Antenna \| T2FD Antenna: \| 30m/40m Dual-Band Delta Loop antenna \| Doublet Dipole Antenna for 80m to 15m \| Trapped Delta Loop Antenna \| Folded Beverage Antenna \| Small Magnetic Loop \| Super Mini Loop Antenna \| Half Square Antenna \| Shortwave Transmitter \| Rockloop HF Antenna \| Foldaway Loop antenna \| Terminated End Fed Vee Antenna \| Half Rhombic antenna \| Optimized sloper antenna for 3.5Mhz \| Multiband Half wave end fed antenna \| 80M Trapped dipole antenna \| Short linear loaded HF antenna \| Terminated Mini Loop Antenna \| Signal Booster enhancing Rx \| DIY Active Antenna \| HF Delta Loop Antenna \| Capacitor Loaded Shortened Dipole Antenna \| Aperiodic Multiband Wire Antenna \| GM4JMU Shortened Dipole \| Indoor Antenna for 7 MHz HF Band \| Shorty Forty Antenna \| Building End Fed Half Wave antenna \| Shortened G5RV Antenna \| Loaded Loop Antenna \| Twin Delta Loop Antenna \| Multiband G5RV Antenna \| Shortened Inverted V Antenna \| Reduced Size 40M Antenna \| Morgain Antenna \| Wideband CMC Choke \| Shortened 40-Meter Delta Loop \| RA9SUS Simple Loop Antenna \| RW4HFN Balcony Antenna \| W5GI Multiband Collinear Antenna \| Bazooka Coaxial Dipole Antenna \| 9:1 UN-UN \| 4:1 UN-UN \| 20–40–80 Meter Loaded Multiband Antenna \| Multiband Dipole Antenna \| Double Bazooka Antenna \| Moxon Beam Antenna \| HF Half Loop Antenna \| Lazy-H Antenna \| 94-Foot Multi Band Doublet \| W3DZZ Multi-Band Antenna \| 80m Magnetic Loop \| Fan Dipole Antenna \| The Half Square Antenna
Vertical Antennas	Vertical Antenna for the 80-Meter Band \| 40m Vertical Antenna \| High Gain Collinear Antenna \| Shortened Vertical Antenna for 80M \| Tree Mounted Quarter-Wave Vertical Antenna
VHF/UHF Antennas	High-Gain 5/8 Wave Mobile Antenna \| 3-Element 433 MHz Yagi Antenna \| G5RV Antenna for 145 MHz \| Directional Slim Jim Antenna \| VHF Slingshot Antenna \| OSJ Dual-Band Antenna \| Double Dipole Antenna \| V-dipole antenna for weather satellites reception \| 145 MHZ Delta Loop \| Popovic Dual Band Antenna \| High Gain Collinear Antenna \| FBK Sleeve Antenna \| Coaxial Collinear Antenna \| ZED Dipole Antenna \| VHF Sleeve Dipole Antenna \| Broadband Avia Antenna \| Square Loop Antenna \| Broadband Butterfly Antenna \| Dual-Band RW4HFN Antenna \| High-Gain collinear antenna \| Sleeve Dipole Antenn \| Stacked 5/8-wave VHF Antenna \| 3-Element Yagi antenna UHF \| 5/4 Wave VHF Antenna \| VHF Collinear J-Pole \| 3 x 5/8 Collinear antenna \| Twin-Lead J-Pole Antenna \| J-Pole Antenna Using 300 Ω TV Ribbon \| Hourglass Loop Antenna \| Hotel Antenna for 2 Meter \| Full Wave Loop Antenna for VHF \| Bi-Square Antenna
Receiving Antennas	Active AM Band Antenna \| Faulkner FM Loop Antenna \| Slim-Jim Antenna for FM \| FM Bazooka Antenna
Antenna Accessories	Building 450 to 600 Ohm DIY Ladder Line
Other Antennas	DIY Antennas for LoRa \| 1:49 UNUN

Amateur Radio Circuits

CW Transmitters	5W Crystal Controlled CW Transmitter \| 7 Mhz 5 Watts CW Transmitter \| Pippin QRP Transmitter \| 40M tag QRP Transmitter \| 80M QRP TAG CW Transmitter \| Ten Minute QRP Transmitter \| OXO QRP HF Transmitter \| CW 74HC240 Transmitter \| 80M CW Transmitter \| 80 meter 1W QRP Transmitter \| 40 Metre CW Transmitter Using 2N2222 \| 40M Class E CW Transmitter \| Crystal Controlled CW Transmitter
AM Transmitters	4-Pin Crystal Oscillator AM Transmitter \| DSB Transmitter \| 7MHz CW / AM QRP Transmitter \| Sovina2 40M Class E Transmitter \| series modulated AM QRP HF Transmitter \| one watt AM transmitter \| Class C – AM Transmitter \| Series Modulated AM Transmitter \| Micro Power AM Transmitter! \| Steve Quest’s Simple AM Transmitter \| 40M AM Transmitter \| Grenade AM Transmitter Circuit \| Commando AM Transmitter \| IRF510 AM Transmitter \| 3-Watt AM Radio Transmitter \| 27MHz AM Transmitter \| 1 MHz AM Transmitter
Receivers	Simple FM Receiver \| FM Bandstop Filter \| Solar Powered Radio \| Simple DIY Active Antenna \| Simple Signal Grabber \| No Power Radio \| Reflex radio \| Two Transistor Radio \| Active Antenna for 0.5–30 MHz \| Simple Receiver S-Meter \| Simple BFO Circuit \| Curumim Transceiver \| Mosquito TRX \| Build Your Own High-Res FM Receiver \| Regenerative Receiver
Audio Circuits	2-Transistor Microphone Compressor \| LM386 Audio oscillator \| SSM2167 Microphone Preamplifier with compressio \| Simple mic compressor \| SSM2167 audio processor \| Audio compressor \| LM324 microphone speech compressor \| NE555 based Microphone amplifier \| Simple audio compressor \| Dynamic speech compressor \| Microphone compressor using two transistors \| Noise Cancelling Condenser Microphone \| microphone noise cancellation using LF351 Op Amp \| Microphone compressor using LM1458 \| Condenser Mic audio amplifier \| Audio compressor for mic \| TL071 Audio Compressor \| Simple Sine Wave Oscillator \| NJM4558 Audio Compressor \| TL081 Speech Processor \| Microphone Preamplifier with Audio Peak Limiter \| Audio Clipper Circuit \| Log audio Compressor \| LM358 Simple Speech Processor \| Microphone Preamplifier with Diode Clipper \| Simple Speech Processor \| Microphone Pre-Compressor \| uBITX Microphone Preamplifier
Test & Measurement	NanoVNA Test Jig \| Crystal tester \| DIY RF Current Sniffer \| Simple tester checks LCDs \| Offset tuning indicator for CW \| Simple zener diode tester \| Battery Low Power Indicator \| Simple Crystal Tester \| Audible Continuity Tester \| Crystal-Controlled CMOS Oscillator \| Untuned Field Strength Meter \| Simple UJT Crystal Checker \| Pink Noise Generator
Digital Mode Interfaces	FT8 Digital Interface \| Programming cable for a Motorola GM 300 \| Programming cable for Motorola Radios \| Ribless Programming cable for Motorola GM360/GM338 radio
RF Circuits	The Poor-Man’s Transmitter \| RF Sniffer Circuit \| Morse Code Practice Oscillator \| Simple RF Indicator \| Simple Low-Noise RF Preamplifier \| DIY HF Linear Push-Pull Amplifier
Others	Lightning Storm Detector \| MAX2633 based VHF Preamplifier \| Dark Room Timer \| White LED Torch \| VK3YE’s AGC circuit \| Repeater Toneburst Module circuit \| Incandescent Lamp Flasher \| DIY Lithium-Ion Solar Charger \| Automatic Battery Saver \| Simple Incandescent Lamp Flasher \| DIY Ion Detector
FM Transmitters	Mini FM Radio Transmitter \| Simple FM Band Transmitter \| 90MHz Crystal Controlled FM Transmitter \| FM Transmitter Using BC547 \| FM Bug Transmitter \| Miniature FM Transmitter \| Tiny FM Transmitter \| Powerful FM Radio Bug Transmitter

Highlight

Simple 29 MHz AM Transmitter

TinyDX: A Palm-Sized HF Digital Modes Transceiver That Fits in Your Pocket

Miniature 80-Metre Magnetic Loop Antenna

Pebble HF: The $50 Open-Source QRP Transceiver That Wants to Get You on HF

Setting Up OpenWebRX with the RTL-SDR V4 Dongle: A Complete Guide

sBitx Version 5.4 Released: New FM Mode and Major Performance Improvements

Classic 2-Transistor Microphone Compressor

40-10m OCF Antenna: A Simple, Multi-Band Wire Antenna