Many radios have a limited amount of space to process the global DMR database. And some websites are charging money to customize the data set. This script is a free way to shrink the data set.

Thanks to https://w1aex.com/dmrid/dmrid.html for documenting a similar manual process! This script reduces toil in a similar way with some simple text manipulation.

For the input file, download one of the following: https://radioid.net/static/users.json (Preferred) https://radioid.net/static/user.csv (Standard)

python3 dmr-id-csv.py -f users.json -w smaller-users.csv -t json

python3 dmr-id-csv.py -f users.json -w smaller-users.csv -t json -m -s

python3 dmr-id-csv.py -f user.csv -w smaller-users.csv -t csv

The script will use ISO State and Country mappings to shrink the data to 2-letter state and 3-letter country. However, the user input in the data is unsanitized. So some countries will likely not match. To work around this, there is a manual mapping that we can add to correct any mappings where the first-three-letter assumption is incorrect. See the country_map in the fix_country method.

This script requires Python 3, pycountry, and us. See requirements.txt. You can install the requirements using pip or other packager. I did not take the time to make a package for this script, use it as-is.