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<blockquote data-quote="Vipersan" data-source="post: 978291" data-attributes="member: 325666">Still no luck identifying this crap ..What I can say is the data bursts are not regularly spaced ..and can last anything from a couple of seconds to abot 20 seconds ..Audible tone always starts high then goes lower ..the lower tone contains what I think is the data ...the higher tone is maybe a handshake ?They can be found in multiple locations around 137 mhz ...The waterfall indicates that during the initial tone which starts the burst and preceeds the data ...is approx 20khz wide ..the data being about 18.5khz ...This is a useful list of logged data waterfalls and tones ....but damned if I can spot the offensive crap I'm experiencing ...I'll post an audio capture when I can ..<a href="http://www.sigidwiki.com/wiki/Database" target="_blank">http://www.sigidwiki.com/wiki/Database</a>This is a farly recent addition to the spectum and imo is local-ish ..on account it booms in at well over 25db ...doh!<a href="http://www.mediafire.com/download/40t22mfa28dlm18/SDRSharp_20160715_122812Z_137704kHz_AF.wav" target="_blank">SDRSharp_20160715_122812Z_137704kHz_AF.wav</a></blockquote>

[QUOTE="Vipersan, post: 978291, member: 325666"] Still no luck identifying this crap .. What I can say is the data bursts are not regularly spaced ..and can last anything from a couple of seconds to abot 20 seconds .. Audible tone always starts high then goes lower ..the lower tone contains what I think is the data ... the higher tone is maybe a handshake ? They can be found in multiple locations around 137 mhz ... The waterfall indicates that during the initial tone which starts the burst and preceeds the data ...is approx 20khz wide ..the data being about 18.5khz ... This is a useful list of logged data waterfalls and tones ....but damned if I can spot the offensive crap I'm experiencing ... I'll post an audio capture when I can .. [URL]http://www.sigidwiki.com/wiki/Database[/URL] This is a farly recent addition to the spectum and imo is local-ish ..on account it booms in at well over 25db ... doh! [URL="http://www.mediafire.com/download/40t22mfa28dlm18/SDRSharp_20160715_122812Z_137704kHz_AF.wav"]SDRSharp_20160715_122812Z_137704kHz_AF.wav[/URL] [/QUOTE]

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