VHF & Exotic Modes
Sporadic-E, tropo ducting, aurora scatter, meteor scatter — the rare propagation modes that make 6m and 2m exciting.
Sporadic-E Propagation: The Complete Guide for 6m Operators
Sporadic-E (Es) opens 6m and VHF without warning. Learn the physics, seasonal patterns, MUF thresholds, and how to catch openings in real time.
intermediateVHF Contest Guide: Strategy, Scoring, and Propagation Planning for 144 MHz
Win VHF contests with propagation-aware band strategy. ARRL September VHF, RSGB VHF, and CQ WW VHF scoring, multipliers, and how to use tropo and Es forecasts.
advancedTrans-Equatorial Propagation: 144 MHz DX Across the Equator
Trans-equatorial propagation (TEP) carries 144 MHz signals thousands of kilometres across the magnetic equator. Learn the mechanism, season, and where to find it.
intermediateTropospheric Ducting: How Temperature Inversions Create VHF DX Openings
Tropospheric ducting traps VHF/UHF signals in a layer near the ground, enabling contacts to 2,000+ km on bands that normally require line-of-sight. The complete guide.
beginnerWhen Is Sporadic-E Season? A Month-by-Month Guide for 6m and 10m Operators
Sporadic-E follows an annual pattern: May–August peak in the northern hemisphere, December–January secondary. Month-by-month opening frequency guide for 6m through 10m.
advancedRain Scatter: Microwave DX via Precipitation Reflections
Rain scatter enables 10 GHz microwave contacts of 100–400 km by reflecting signals off rain cells. Learn the physics, equipment, and how to find rain scatter opportunities.
intermediateMeteor Scatter Propagation: Working DX on 144 MHz via Meteor Trails
Meteor scatter uses ionised trails left by meteors to bounce VHF signals up to 2,200 km. Complete guide: MSK144, shower timing, and equipment for 2m meteor scatter.
advancedEME (Earth-Moon-Earth): The Complete Guide to Moonbounce Communications
EME (moonbounce) bounces signals off the Moon to achieve contacts up to 12,000 km. Learn the physics, JT65 digital mode, and what equipment you actually need.
advancedAircraft Scatter: VHF DX Using Airliners as Passive Reflectors
Aircraft scatter reflects 144 MHz signals off commercial airliners, enabling 500–1,000 km contacts without special propagation. How it works and how to use it.
intermediate6m DX Records and Exceptional Openings: The Magic Band's Greatest Achievements
6m has produced contacts over 20,000 km via F2, multi-hop Es, and TEP. A guide to the Magic Band's propagation records, historic openings, and what conditions produce them.
intermediate2 Meters Beyond Repeaters: Tropo Ducting, Meteor Scatter, and Aurora DX
2 meters (144–148 MHz) supports tropo ducting, meteor scatter, aurora scatter, and EME. Learn how to work VHF DX beyond local repeaters.