New FW release: "audio AGC" option and reduced spurs

Erik Kaashoek All Messages By This Member #19541 New FW release Version V1.4197 For all tinySA Ultra and Ultra+ versions ? Changes: - Added CONFIG/EXPERT CONFIG/MORE/AUDIO AGC option. When disabled the PCB edge point PA4 will in listen mode have a voltage linear with the signal level in dBm Useful for integration of tinySA as selective power meter - Reduced level of internally generated spurs on multiples of 10 MHz not being multiples of 30 MHz (ZS-407 only) -- Designer of the tinySA For more info go to
Terry Perdue All Messages By This Member #19568 开云体育 From your description of this new feature, disabling AUDIO AGC changes PA4 from demodulated audio to a DC voltage that tracks the signal level. If that’s correct, it seems this function operates backwards. (Enable AGC = disable audio.) toggle quoted message Show quoted text On Feb 24, 2025, at 8:26?AM, Erik Kaashoek <erik@...> wrote: ? New FW release Version V1.4197 For all tinySA Ultra and Ultra+ versions ? Changes: - Added CONFIG/EXPERT CONFIG/MORE/AUDIO AGC option. When disabled the PCB edge point PA4 will in listen mode have a voltage linear with the signal level in dBm Useful for integration of tinySA as selective power meter - Reduced level of internally generated spurs on multiples of 10 MHz not being multiples of 30 MHz (ZS-407 only) -- Designer of the tinySA For more info go to

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