• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

Interesting software radio test bed

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STiMULi

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http://www.ettus.com/

Ettus said:
The USRP
The Universal Software Radio Peripheral, or USRP, is device which allows you to create a software radio using any computer with a USB 2 port. Various plug-on daughterboards allow the USRP to be used on different radio frequency bands. Daughterboards are available from DC to 2.9 GHz at this time. The entire design of the USRP is open source.

The USRP works with GNU Radio, a free-software (open source) framework for the creation of software defined radios. Both the USRP and GNU Radio work on all of the following operating systems:

* Linux
* Windows
* Max OS X, PPC and Intel processors
* FreeBSD and NetBSD
 
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