ACOM 1200S firmware v2.9

ACOM · Released Jul 16, 2025 · First seen Sep 7, 2026

Source: acom-bg.com

v2.9 is the latest firmware for the ACOM 1200S, released July 16, 2025.

In short — summary by updatemystuff.com

Improves CAT-controlled ATU tuning with listen-only CAT support and better mic gain handling.

  • Fixes ATU tune with listen-only CAT mode
  • Improved CAT command retry logic
  • Properly saves radio mic gain during tuning

Written from ACOM's release notes, which are printed in full below.

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What's in this update

  • Improve stability during CAT-controlled ATU tune
  • Make the ATU Tune process work with listen-only CAT
  • Fix ATU tune with unidirectiona​l (listen-only) CAT
  • Retry CAT commands only when the radio does not respond
  • Try not to switch to manual tune mode when CAT error detected
  • Do not hardcode 100 mic level maximum fo​r TS-990 and similar
  • Properly save the radio mic gain before tuning
  • Always report band number in telemetry messages
  • Increase bias thresholds

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Other versions for this product

See the full firmware history for the ACOM 1200S