Arcom Controllers RC210 (M128 CPU) firmware v4.21

Arcom Controllers · Released Apr 8, 2004 · First seen Sep 9, 2026

Source: arcomcontrollers.com

v4.21 is not the latest firmware for the Arcom Controllers RC210 (M128 CPU): the current version is v6.0454 (January 5, 2021). Go to v6.0454

In short — summary by updatemystuff.com

Expanded Remote Base Memories to 10 slots; enhanced Kenwood radio support.

  • Remote Base Memories increased to 10 slots
  • Enhanced support for Kenwood TM-V7A, TM-G707, TH-F6A, TH-G71

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

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What's in this update

minor upgrade with​ several Remote Base enchancements Enhanced support for Kenwood radios, including TM-V7A. TM-G707, TH-F6A, TH-G71 There are now 10 Remote Base Memories that store frequency, offse​t, CTCSS Encode/Decode status and CTCSS tone frequency

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Other versions for this product

See the full firmware history for the RC210 (M128 CPU)