Build a simple twin-lead J-pole antenna for VHF/UHF using 300-ohm ribbon cable. This end-fed half-wave vertical with quarter-wave matching stub delivers omnidirectional coverage, low noise, and reliable FM/repeater performance without ground radials
Author: Prabakaran
Prabakaran is a seasoned author and contributor to leading electronics and communications magazines around the world, having written in publications such as Popular Communications Magazine (USA), ELEKTOR (UK), Monitoring Times (USA), Nuts & Volts (USA), and Electronics For You (India).
Multiband Dipole Antenna for 10–80 Meters
Compact multiband HF dipole covering 10–80 m using symmetrical loading coils and coax matching section. Single-wire antenna for small spaces enabling 80, 40, 20, 15, 11, and 10 m operation with an antenna tuner.
3 x 5/8 Collinear antenna for 435 MHz UHF Band
High-gain 435 MHz UHF collinear antenna using three 5/8-wave vertical sections with inductive phasing. Provides ~6 dB omnidirectional gain and low-angle radiation for repeater, base, and long-range 70 cm band operation.
VHF Collinear J-Pole : The DIY Super J-Pole Antenna
Build a VHF Super J-Pole (collinear J-pole) antenna by stacking two half-wave elements with a phasing stub for ~3 dB gain over a standard J-pole. Omnidirectional, low-angle radiation vertical ideal for 2 m repeaters and long-range VHF communication
Housing the LARCSet: A Community-Designed 3D-Printed Enclosure
Ready to move your LARCSet off the workbench? Discover this community-driven 3D-printed enclosure project featuring STL files from Peter Marks and builds by VE3WMB.
5/4 Wave VHF Antenna for 145 MHz Using 450-Ohm Ladder Line
Build a 5/4-wave VHF antenna for 145 MHz using 450 Ω ladder line and a choke feed. Shows how to mount, feed, and match this high-gain vertical for FM, repeater, and simplex operations on the 2 m band
Stacked 5/8-wave VHF Antenna for 146 MHz
Stacked 5/8-wave VHF Antenna for 2-meter band (146 MHz). Learn design theory, dimensions, tuning method, and original YY5RM reference for high gain ham radio
W5GI Multiband Collinear Antenna: A Proven HF All-Band Wire Antenna
The W5GI multiband collinear antenna combines wire radiators and coaxial phasing sections to deliver reliable HF coverage from 80–6 m. A tuner-friendly alternative to the G5RV with strong multiband performance and efficient radiation for practical ham radio installations
Integrating JTDX with sBitX for Advanced FT8 Operation
Learn how to integrate JTDX with the sBITX SDR transceiver for reliable FT8 digital operation. Step-by-step setup, CAT configuration, and audio interface tips for amateur radio operators
Simple High-Gain collinear antenna using coaxial cable
Learn how to build a simple high-gain collinear antenna using coaxial cable for VHF/UHF amateur radio. Low-cost DIY design with improved omnidirectional coverage and better range than a standard vertical