Audio Server Technical Information


This is the equipment that handles online audio streams and audio archives:





N7ZQT hosts the system at the Data Systems Group, Inc. data center in Vail, AZ.


An ICT ICT12012-11A supply powers everything. Total AC draw = 22W.


This Maxrad BMOY4403 yagi pulls in a solid -68dBm signal from the repeater:






KC7CPB donated an ADI AT-400 (with CTCSS unit) for use in this receiver assembly:





A Transcendient CDC-01 CTCSS decoder was added to filter the 100Hz tone.



A Mini-ITX PC was built around an Intel D945GSEJT fanless Atom N270 motherboard:





Remote Desktop Connection is used to manage the system from anywhere.



ScannerCast acts as a streaming audio server and also sends a feed to RadioReference:






RecAll-PRO creates voice-activated MP3 recordings and manages file sizes:





A VBScript script runs daily to remove local archives more than 10 days old.


SyncBackSE runs every 30 minutes to sync local archives with the web server:






Acronis True Image makes a weekly backup drive image to a USB flash drive:






Processes running on the Linux Apache web server:


Cron runs a command daily to remove archives more than 10 days old.

"ID3 Mass Tagger" runs every 30 minutes to insert MP3 ID3 tags.

Cron runs a shell script every 30 minutes to parse a list of current archives into HTML.

A SSI directive inserts that HTML into the audio archives page to keep it dynamically updated.



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