Scanner: Difference between revisions
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In 2015, Bloominglabs received a donation of a Uniden P25 digital police scanner, and we shared that audio online via an Icecast feed for many years. However, technology evolved, and while we still have the Uniden scanner at the space we now have a more modern and feature-rich scanner feed built from Software Defined Radios (SDRs). It's now possible to listen to live scanner audio as well as archived audio, without missing any radio traffic. |
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http://radio.bloominglabs.org:8000/policescanner |
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== Listening |
=== Listening Links === |
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https://openmhz.com/system/bmgsafet - this is probably the easiest site to use |
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* The feed is stereo |
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** Left channel: Indiana SAFE-T P25 Bloomington site |
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** Right channel: Conventional VHF |
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* The feed can be played multiple ways |
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** using a web browser |
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** using a media player |
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** using a scanner app as a "custom" feed (you will need to add the URL; it won't be pre-populated in the app's feed directory) |
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https://radio.bloominglabs.org - this site has some advanced features and more closely resembles a traditional scanner interface |
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== Troubleshooting == |
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Both feeds contain radio traffic from in and around Monroe County, Indiana including many agencies in Bloomington as well as some state agencies and the occasional federal agency. |
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If for some reason the scanner Icecast feed goes down this is how to troubleshoot it. |
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=== Technical Details === |
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* First, verify the scanner is turned on. It should start scanning immediately after it's powered on, if not then make that happen. |
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* Once it's scanning it should periodically output some audio out the speaker. |
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At Bloominglabs: |
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** If there's no audio, make sure the volume knob hasn't been turned down. |
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** The feed volume in independent from the scanner's volume control. |
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* 3x RTL-SDRs with indoor antennas |
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* The recording output on the scanner feeds into an Intel NUC running darkice that in turn feeds to the Icecast server. |
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* Intel NUC running Debian GNU/Linux |
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** The IP of the NUC is labeled on it for easy access. |
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* [https://github.com/robotastic/trunk-recorder Trunk Recorder] software (sends recorded audio to both OpenMHz and radio.bloominglabs.org) |
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** Services on the NUC are set to start automatically upon boot. |
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* Contact kevinr or dosman if you need further assistance. |
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In the cloud at radio.bloominglabs.org |
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* VPS running Debian GNU/Linux |
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* [https://github.com/chuot/rdio-scanner Rdio Scanner] software |
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Revision as of 20:01, 7 September 2022
In 2015, Bloominglabs received a donation of a Uniden P25 digital police scanner, and we shared that audio online via an Icecast feed for many years. However, technology evolved, and while we still have the Uniden scanner at the space we now have a more modern and feature-rich scanner feed built from Software Defined Radios (SDRs). It's now possible to listen to live scanner audio as well as archived audio, without missing any radio traffic.
Listening Links
https://openmhz.com/system/bmgsafet - this is probably the easiest site to use
https://radio.bloominglabs.org - this site has some advanced features and more closely resembles a traditional scanner interface
Both feeds contain radio traffic from in and around Monroe County, Indiana including many agencies in Bloomington as well as some state agencies and the occasional federal agency.
Technical Details
At Bloominglabs:
- 3x RTL-SDRs with indoor antennas
- Intel NUC running Debian GNU/Linux
- Trunk Recorder software (sends recorded audio to both OpenMHz and radio.bloominglabs.org)
In the cloud at radio.bloominglabs.org
- VPS running Debian GNU/Linux
- Rdio Scanner software
