We're using SparkSDR V2.0.3.8 talking to Hermes-Lite 2 and listening to decodes on a WebSocket. FT8 payload decoding is handled by an executable from WSJT-X. site 
digraph { rankdir=LR node [shape=box style=filled fillcolor=bisque] "Hermes-Lite 2\nHardware" -> "SparkSDR\nApplication" [label="udp\ndatagrams"] "SparkSDR\nApplication" -> "HTML\nScripts" [label="web\nsocket"] "SparkSDR\nApplication" -> "Deno\nScripts" [label="web\nsocket"] "HTML\nScripts" -> "Federated\nWiki" [label="frame\nmessage"] { rank="same"; "SparkSDR\nApplication" -> "WSJT-X\nFortran" [label="process " dir="both"]} "Deno\nScripts" -> "Text\nFiles" [label="file\nappend"] }
We write html scripts that can be launched by anyone to listen to decodes from their local SparkSDR. github
Tip: edit url param _domain=localhost_ to listen elsewhere.
# Browser
Click these script links to run the webapp in a new tab.
▶︎ Listens for spots bundled into websocket messages. These appear as tables in browser console. script
See View ⇒ Developer Tools ⇒ JavaScript Console
▶︎ Shows the spots by prefix only in a single line per websocket message. script
▶︎ Collects and displays call signs heard on each band and updates snr reports as new spots arrive. script
▶︎ Collects and displays call signs heard on each band and show varying snr with colors. script
▶︎ Plots the number of spots for each band decoded. Watch activity move up and down the spectrum. script
▶︎ Confirmed contacts joined with arrows rooted in the stations heard. Auto update of chosen band. script
▶︎ Unraveled back and forth transmissions exchanged to complete contacts, each shown it its own frame. script
▶︎ Recent traffic counts in recorded spots. script
# Wiki
Some scripts have special features when run inside a wiki page. Use these links to see this work.
# Tools
See Spark Script Tools we use here.
ARRL Field Day Section List. pdf