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SmartSDR v3.7.4 and the SmartSDR v3.7.4 Release Notes | SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
Power Genius XL Utility v3.8.8 and the Power Genius XL Release Notes v3.8.8
Tuner Genius XL Utility v1.2.11 and the Tuner Genius XL Release Notes v1.2.11
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SmartSDR v3.7.4 and the SmartSDR v3.7.4 Release Notes | SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
Power Genius XL Utility v3.8.8 and the Power Genius XL Release Notes v3.8.8
Tuner Genius XL Utility v1.2.11 and the Tuner Genius XL Release Notes v1.2.11
Antenna Genius Utility v4.1.8
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What is this signal
AH0U
Member
What is the signal at 770kc with the strange sidebands... its a local religious station
![Image: https://d2r1vs3d9006ap.cloudfront.net/s3_images/1825649/RackMultipart20200219-101952-pnvugk-770_inline.jpg?1582131299 image](https://us.v-cdn.net/6032377/uploads/attachments/RackMultipart20200219-101952-pnvugk-770_inline.jpg)
0
Answers
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It is "HD" AM Radio. Also know as Hybrid Digital.
The "pedestals" contain digital data to supplement/replace the analog audio or other information.
WLW radio in Cincinnati (700khz/50KW) used to exhibit the same spectrum. Seemly becoming less & less common.1 -
Tnx...... very wide .... who or what received the extra data???0
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Specifically designed HD receivers.
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Commercially available HD radio receivers. The format is a little more popular on FM broadcasts. The is an open source project on SourceForge, nrcs5, to decode HD FM. I don’t know if it will receive HD on AM.0
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1
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I misspoke. The project is nrsc5 and is on GitHub0
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