POTA, SOTA, and WWFF — Portable Operating Programmes
Parks on the Air, Summits on the Air, and World Wide Flora and Fauna are three hugely popular portable operating programmes that get ham radio operators out of the shack and into the field. Each programme assigns reference numbers to specific outdoor locations — parks, summits, nature reserves — and awards points or certificates for activating those locations or contacting operators who are there. These programmes have driven an explosion of portable operating activity and created a vibrant, supportive community of operators who share a love for combining the outdoors with amateur radio.
How POTA works
POTA (pota.app) assigns reference numbers to parks, forests, wildlife refuges, national monuments, historic sites, and other government-designated outdoor areas. An activator operates from within the boundary of a POTA reference location and makes at least 10 contacts to qualify the activation. Hunters are operators who contact activators from home or other locations. Both activators and hunters log contacts and upload them to the POTA website for credit.
POTA is entirely free to participate in. There are over 60,000 reference locations worldwide and the programme is active in over 60 countries. The pota.app website shows active activators in real time on a map, making it easy to find and contact someone who is currently in a park.
Getting started as a POTA activator
Create a free account at pota.app. Find a POTA reference location near you using the map or search function — national forests, state parks, national wildlife refuges, and Bureau of Land Management land are all commonly activated. Check that your planned operating location is within the designated boundary. Pack a portable station — at minimum an HF radio, battery, and simple wire antenna. When you arrive, spot yourself on the POTA spotter (via the website or app) so hunters know you are on the air, and make your 10 contacts. Upload your ADIF log to pota.app afterwards for the activation to count.
How SOTA works
SOTA (sota.org.uk) assigns reference numbers to mountain summits that meet specific prominence criteria. An activator physically climbs to within the designated activation zone — usually the top 25 metres of elevation of the summit — and makes at least 4 contacts to qualify the activation. Summits are worth between 1 and 10 points based on their prominence. Chasers (hunters) contact activators from home or portable locations.
The SOTA scoring system creates genuine incentive to climb higher and more challenging summits — a 10-point summit requires a significant climb but rewards accordingly. Activators accumulate Mountaintop Activator points, Chasers accumulate Chaser points, and the combined total determines award levels from Bronze through Mountain Goat (1000 points) for activators and Shack Sloth (1000 points) for chasers.
SOTA operating practicalities
SOTA operations must be truly portable — no vehicle assistance is permitted within the activation zone. Equipment must be carried on foot to the summit. This drives a whole category of ultralight ham radio operating — QRP radios like the Elecraft KX2, Yaesu FT-818, and QMX, paired with lightweight wire antennas and small LiFePO4 batteries, are the standard SOTA kit. Most SOTA contacts are made on 40m, 20m, and 2m. The SOTA Spotter website and app show planned and active activations in real time.
How WWFF works
WWFF (wwff.co) covers nature protected areas worldwide — national parks, nature reserves, Ramsar wetlands, UNESCO biosphere reserves, and similar protected environments. Reference numbers follow the country prefix format — US references are KFF-XXXX, UK references are GFF-XXXX, and so on. An activation requires 44 contacts to qualify for an award, though partial credit is given for fewer contacts. WWFF has a strong international community and is particularly popular in Europe and Australia.
Combining programmes
Many outdoor locations qualify for multiple programmes simultaneously — a location may be both a POTA reference and a WWFF reference, and if it is on a qualifying summit, a SOTA reference as well. Operating from such a location allows you to log contacts for all applicable programmes in a single activation. This is called a combo activation and is popular among portable operators who want to maximise the value of a single trip. Check each programme's reference database before heading out to identify combo opportunities near you.
| Component | POTA | SOTA | Notes |
|---|---|---|---|
| Radio | 100W HF or QRP | QRP strongly preferred | IC-705, KX2, FT-891, QMX all popular |
| Power | LiFePO4 10–30Ah | LiFePO4 3–10Ah | Weight is critical for SOTA |
| Antenna | EFHW, linked dipole, vertical | EFHW, sotabeams, linked dipole | Must be quick to deploy |
| Support | Telescoping mast or trees | Lightweight carbon mast or trees | Bring enough paracord |
| Logging | Paper log or phone app | Paper log or phone app | Upload ADIF after returning |
Do I need an HF radio for POTA and SOTA?
No — VHF and UHF contacts count for both programmes. Many SOTA activators make their required 4 contacts entirely on 2m FM simplex or via a local repeater, especially on easily accessible summits. For POTA, 2m and 70cm contacts count, though HF significantly increases your hunter pool and makes reaching the 10-contact minimum much easier. Most serious POTA operators use HF.
What is the most popular band for POTA activations?
40 metres is the most popular POTA band because it supports contacts across a wide range — from nearby hunters a few hundred kilometres away to stations across the country — throughout most of the day. 20m is popular for reaching hunters on the other side of the country or internationally. 10m and 6m are popular during high solar activity periods when propagation supports wide coverage at low power.
How do hunters find out that someone is activating?
Activators self-spot using the POTA or SOTA spotter websites or apps. The spot is visible in real time on the programme's website and in various third-party apps. Many hunters also monitor the cluster and dedicated POTA/SOTA spotting tools. Some operators announce planned activations in advance on programme forums so hunters can plan to be available.
Can I activate the same park or summit more than once?
Yes — for POTA, you can activate the same reference as many times as you want and receive activation credit each time. For SOTA, you can activate the same summit multiple times but each summit can only be counted once per calendar year for unique summit credit (though you still receive points for repeat activations of the same summit).