Icom Decoder Daughter Card

The board includes two band decoders using 4 bit BCD from your radio or logging program. The board can be power directly with 12V DC or 18V P-P AC fed to the rectifier section. I laid the board out such that you can just add the components for the simple version of the controller, if you don’t need the band decoders for example. The band decode segment includes an option to lockout antenna switching while transmitting. If you do not need the PTT controlled lockout you can leave that segment out as well. These sections are clearly marked on the PC board and in the assembly documentation.

• Dimensions: 1.8″ x 1.3″
• NTE1508 Dot/Bar Driver is difficult to find – required part
• High quality FR4 double sided 1oz copper, masked, and silk screened both sides.
• A fully opto-isolated interface between an Icom radios analog voltage band data output and the Antenna Switch Controller
• Designed as a “daughter card” which plugs into the CD4028 socket of one or the other port of the controller
• Takes the place of all the components of one of the two decoders
• Can be used as a stand-alone decoder as well!
• Discrete pin in hole component design – you might have many of the components in your junk box!

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Please note: All electronic parts are included in the project file. Any unneeded part can easily be removed from the Mouser order. There are “optional” parts included in the list PLEASE PAY ATTENTION FOR THESE. If you have questions please reach out to me.

Looking for more info or ideas…

Check out the FAQ link in the header or the twisties below