Image:P25 locomotive radio audio.ogg

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P25_locomotive_radio_audio.ogg‎ (Ogg Vorbis sound file, length 31s, 53kbps)

[edit] Summary

Description	area of Capitol Peak, Washington, USA Department of Commerce recordings of P25 radio tests.
Source	NTIS
Date	08/18/2000
Author	US Government
Permission (Reusing this image)	Public Domain

Disclosure: Recordings from APCO Project 25 equipment testing done by the NTIS using Motorola XPS-2000 radios in digital and analog FM modes. Three original government recording segments were pasted together into a single file and had levels adjusted so all three segments were similar. Original files were 8KHz .voc raw format which were converted to the standard Wikipedia, OGG format. Consider this file in the public domain: it consists of three public domain sounds edited into a single file with the coding changed slightly.

First segment: original test audio.
Second segment: analog FM in a noisy, but usable, signal area.
Third segment: P25 recovered digital audio from a professional receiver.

Location: within a 50 mile radius of Capitol Peak transmitter site 46°58′24″N, 123°08′16″W, Washington, USA.

[edit] Licensing

This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.
Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision.

File history

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	Date/Time	Dimensions	User	Comment
current	02:15, 5 March 2008	31s (199 KB)	David Jordan (Talk \| contribs)	({{Information \|Description=Department of Commerce recordings of P25 radio tests. \|Source=NTIS \|Date=08/18/2000 \|Location=area of Capitol Peak, Washington, USA \|Author=US Government \|Permission=Public Domain \|other_versions= }} )