Arcom Controllers RC210 (M128 CPU) firmware v4.693

Arcom Controllers · Released Jun 10, 2007 · First seen Sep 9, 2026

Source: arcomcontrollers.com

v4.693 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

Fixes CTCSS Encode pulsing and RCP data corruption issues; requires RCP 5.17 or later.

  • Fixed CTCSS Encode line pulsing during initial keyup
  • Fixed scrambled data during RCP upload/download operations
  • Requires RCP 5.17 or later (5.18 suggested)

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

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What's in this update

Bug fixes

  • Fixed bug introduced in 4.6.2 where CTCSS Encode line pulsed during initial keyup if CTCSS During ID was set OFF an​d it was time for Initial ID..
  • Fixed bug where COR activity during RCP operations *might* result in scrambled data. Now when doing a complete RCP upload to or download f​rom the controller, COR activity is suspended to avoid timing conflicts.
  • Note: This firmware version requires RCP 5.17 or later (suggested RCP 5.18 however)

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Other versions for this product

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