Sota Antennas #3: EFRW spool antenna
Discover the pros and cons of the EFRW spool antenna. Includes 3D design files, tips on using 24 AWG litz wire, and a guide to finding the best "random" wire lengths for 40m-10m bands.
SOTA is an award scheme for radio amateurs that encourages portable operation in mountainous areas.
Discover the pros and cons of the EFRW spool antenna. Includes 3D design files, tips on using 24 AWG litz wire, and a guide to finding the best "random" wire lengths for 40m-10m bands.
The All OE SOTA Activity Day 2025 will take place on 13th September 2025. Its focus is on OE wide portable ham radio operation from a mountain.
OM David, M0JKS, has designed a very small and lightweight substitute microphone for the stock Elecraft KX2 mic. Very handy for SOTA ;)
194 summits, 7 years and 5 months, 2940 QSOs after starting my journey I have finally obtained my first "Mountain Goat".
The European SOTA Activity Day 2024 took place on 14th September 2024. Its focus is on EU wide portable ham radio operation from a mountain.
The European SOTA Activity Day 2023 took place on 16th September 2023. Its focus is on EU wide portable ham radio operation from a mountain.
Article about my primary SOTA antenna which is a multi-band (20/30/40) inverted-vee trapped dipole with over 100 successful activations.
Learn how to export a GPX file from the OE5LXR SOTA tour database, convert it to a route, and send it to your GPS device for navigation.
The European SOTA Activity Day 2022 took place on 17th September 2022. Its focus is on EU wide portable ham radio operation from a mountain.
The European SOTA Activity Day 2021 took place on 18th September 2021. Its focus is on EU wide portable ham radio operation from a mountain.