I don't know of any brand from a few years ago, if there is someone will know, if we come back to the present day the Baofeng DM1701 and the Retevis RT3S can perform Doppler change with a free firmware called OpenGD77

https://www.youtube.com/watch?v=UUWXI47oLr8

Ignacio - TI3IES

El lun, 29 abr 2024 a las 11:44, samuel galet via AMSAT-BB (< amsat-bb@amsat.org>) escribió:

I once read there was a rare handi that automatically corrected for the doppler shift during a satellite pass. Does anyone remember the radio and what was it'd name.

Many thanks.

73 de VE2LJV Samuel Galet

Sent from my Galaxy

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