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F104Mapper is a companion program to JS8Spotter. It reads F!104 Situation Report form data received via JS8Call / JS8Spotter and displays that data on an offline map of North America, allowing operators to quickly see the operational status at each reporting station’s location.
F104Mapper operates entirely offline at runtime. No internet connection is required once the program and its map data are installed.
Key capabilities:
• Displays color-coded map pins showing current status at each reporting station’s Maidenhead grid square location
• Formatted detail view of each received report, shown when a pin is clicked
• Date filtering to focus on a specific time window
• Automatic 60-second polling of an open JS8Spotter database for new reports
• Export of the map as a PNG, JPG, or SVG image
F104Mapper is an offshoot from JS8Reporter. If you like F104Mapper, please consider also downloading and using JS8Reporter, and send out regular F505 Area Assessment forms. This is a major part of what the SitRepNet is all about – a decentralized, crowd-sourced information gathering network.
Current version is 1.1.1 released 03/24/2026
➊ this can be improved, and
➋ we can get you up and running.
⚑ F104Mapper Version Log – https://sitrepnet.com/f104mapper-version-log/
Download the F104Mapper User’s Guide, current version. This includes full instructions on downloading, installing, and using the program.
● https://sitrepnet.com/f104mapper-download/F104Mapper_User_Manual.txt
Download the F104Mapper install package. Be sure to read the installation instructions in the User’s Guide first.
● https://sitrepnet.com/f104mapper-download/f104mapper_v1.1.1.zip
Download the PGP signature file for the install package to authenticate the file using the PGP key – KN4AM – Stephen Clay McGehee – 0x7C57A3E5
Available here – https://sitrepnet.com/public-keys/.
● https://sitrepnet.com/f104mapper-download/f104mapper_v1.1.1.zip.sig
Updating from a previous version:
Simply replace f104mapper.py (and setup.py) with the new versions. Re-running setup.py is not necessary unless directed.
(standard MIT license)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
