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156.300 Ch 6 - Digital Signal

AB9NN

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#1
Does anyone know what mode the following frequency is? I hear digital signal on it - like a jackhammer sound.
- 156.30000 06 - Intership Safety Marine VHF 1A-88A Maritime Operations Maritime

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AB9NN

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#4
Hi Jon,
Is there any chance you could post a recording, just a short clip?
Tried (installed an audio recorder plug-in to SDR#) and found the bursts were quite short and spaced quite a long time apart. Decided to just watch the SDR# waterfall for a bit. Pretty sure it was from a close frequency. There was a very strong (very wide) signal next to this frequency and that may have blown through the front-end of the RTL-SDR dongle. I will continue to monitor but not holding my breath... smile.
 
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Taxachusetts
#5
just a thought, someone running AIS on the wrong Frequency
Tried (installed a audio recorder plug-in to SDR#) and found the bursts were quite short and spaced quite a long time apart. Decided to just watch the SDR# waterfall for a bit. Pretty sure it was from a close frequency. There was a very strong (very wide) signal next to this frequency and that may have blown through the front-end of the RTL-SDR dongle. I will continue to monitor but not holding my breath... smile.
 
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