What Is SOTA?

Summits on the Air (SOTA) is an international amateur radio award program that challenges operators to hike to mountain summits and make radio contacts from the top. It's simultaneously a hiking program, a radio operating challenge, and a global community — with thousands of designated summits across dozens of countries.

There are two roles in SOTA: the Activator (the person on the summit) and the Chaser (operators from home or other locations who contact the activator). Both roles earn points toward awards.

Why SOTA Appeals to Ham Operators

  • Combines outdoor exercise with radio operating
  • Provides a clear, structured challenge with awards and logs
  • Teaches real-world portable operating skills
  • Summits often offer dramatically better propagation than home stations
  • Active global community with real-time spotting via SOTAwatch

License Requirements

In the US, a Technician license is sufficient to operate on VHF/UHF for SOTA contacts. However, most SOTA activations use HF bands (40m, 20m, 30m), which require at least a General class license. Upgrading opens up significantly more contacts and long-distance (DX) possibilities from a summit.

Gear for a SOTA Activation

The golden rule of SOTA gear is go lightweight. Every gram counts when you're hiking uphill. Here's a practical starting kit:

Radio

Popular choices for SOTA include:

  • Yaesu FT-818 — The classic all-mode HF/VHF/UHF portable rig, tried and true
  • Elecraft KX2 or KX3 — Premium, efficient, and highly capable
  • Xiegu G90 or X6100 — Budget-friendly SDR-based alternatives gaining popularity
  • QRP Labs QCX-mini — CW-only but extremely lightweight and affordable

Antenna

A simple wire dipole or EFHW (end-fed half-wave) antenna supported by a lightweight fiberglass or carbon fiber mast is the standard SOTA antenna. You can build one for under $20 in wire and connectors. Avoid heavy beam antennas — they defeat the purpose.

Power

Most SOTA operators use LiFePO4 (lithium iron phosphate) batteries for their excellent energy density and weight. A 3–5Ah pack is plenty for a standard activation at QRP power levels (5W or less).

Other Essentials

  • Lightweight folding chair or sit pad
  • Logbook or phone logging app (VK Port-a-Log, HAMRS)
  • Coax cable (a short run, RG-316 or similar lightweight coax)
  • Appropriate hiking gear, layers, food, and water

Planning Your Activation

  1. Find a summit — Browse summits-on-the-air.org for designated peaks near you. Each summit has a reference number (e.g., W7A/AZ-001) and assigned point value based on prominence.
  2. Check the rules — You must operate within the Activation Zone (within 25 vertical meters of the true summit) and make at least 4 valid contacts to qualify.
  3. Self-spot on SOTAwatch — Alert chasers before your hike and spot yourself when you're on frequency. This floods your log with contacts quickly.
  4. Upload your log — Submit via the SOTA database after your activation for points and awards.

Tips for Your First Activation

  • Start with an accessible, lower-point summit to practice your setup
  • Practice setting up your antenna and radio at home before the hike
  • Use phone (SSB voice) if you're nervous — CW is faster but takes more practice
  • Bring more battery capacity than you think you need
  • Check the weather forecast carefully — summits can change fast

The Reward

There's nothing quite like making a contact with a station 2,000 miles away using 5 watts and a wire antenna thrown over a branch on top of a mountain. SOTA teaches you more about practical radio operating in one activation than weeks of sitting at a home station. Give it a try — the community is welcoming and the hobby is deeply rewarding.