Welcome to the FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
The latest SmartSDR Software:
SmartSDR v4.2.18 | SmartSDR v4.2.18 Release Notes
SmartSDR v3.10.15 | SmartSDR v3.10.15 Release Notes

The latest 4O3A Genius Product Software:
The latest 4O3A Genius Product Software and Firmware
How to Receive Technical Support::
If you are needing assistance with FlexRadio products, please refer to the product documentation or check the Help Center for known solutions. Need technical support from FlexRadio? It's as simple as creating a HelpDesk ticket.

What is this signal

AH0U
AH0U Member
edited February 2020 in FLEX-6000 Signature Series

What is the signal at 770kc with the strange sidebands... its a local religious stationimage

Answers

  • Bob K8RC
    Bob K8RC Member ✭✭✭
    edited February 2020
    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.
  • AH0U
    AH0U Member
    edited February 2020
    Tnx...... very wide .... who or what received the extra data???
  • Bob K8RC
    Bob K8RC Member ✭✭✭
    edited February 2020
    Specifically designed HD receivers.

  • Mark Erbaugh
    Mark Erbaugh Member ✭✭
    edited February 2020
    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.
  • Steve Sterling
    Steve Sterling Member ✭✭
    edited February 2020
    Look in the AM section details of the following:
    https://en.wikipedia.org/wiki/HD_Radio


  • Mark Erbaugh
    Mark Erbaugh Member ✭✭
    edited February 2020
    I misspoke. The project is nrsc5 and is on GitHub

Leave a Comment

Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph. An inline formatting menu will show up when you select text. Hit tab to get into that menu. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.

Comment As ...

Categories