What is GMAC?
GMAC stands for Global Mountain Activity Contest.
It is a regular activity contest on the 2m band, where you operate portable from a GMA reference.
Go outdoors, set up your antenna, exchange locators and collect kilometres.
When does GMAC take place?
- every 1st Tuesday of the month, 19:00–23:00 local time
- every 3rd Sunday of the month, 08:00–12:00 UTC
Who can participate?
Licensed radio amateurs can participate by operating portable from a listed GMA reference.
Operation must follow the portable GMA rules.
What is exchanged?
The exchange is simple:
- RS(T)
- QTH locator
No serial number is required.
How are points calculated?
- 1 point per kilometre
- 500 bonus points per WW locator square
Why join GMAC?
GMAC is a great way to create real 2m activity from summits and outdoor locations.
- many stations active at the same time
- good chance for long-distance QSOs
- exciting even with low power
- a perfect mix of outdoor radio and contesting
Log and scoring
Upload or enter your log in GMA as usual.
The software automatically detects matching GMAC logs and lists them on the GMAC page.
The annual score is based on the best monthly results according to the rules.
Tip
Tuesday evening between 19:00 and 21:00 local time is often the most active period.
A small directional antenna and a good location often matter more on 2m than high power.
Rules
The full rules are available in the official GMAC rules document: