Arcom Controllers RC210 (M128 CPU) firmware v4.50

Arcom Controllers · Released May 25, 2006 · First seen Sep 9, 2026

Source: arcomcontrollers.com

v4.50 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

Bug fixes for Kenwood/Yaesu radio routines, DTMF handling, and multi-port speech.

  • Kenwood/Yaesu FT-847 radios fixed to work with new frequency entry format
  • Disabled DTMF no longer interferes with other ports
  • Multi-port speech PTT dropout eliminated

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

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What's in this update

Feature changes and bug fix Fixed Kenwood Serial and Yaesu FT-847 routines to work properly with new frequency ent​ry format When DTMF is disabled on a Port, it is completely ignored now.

Previously, a disabled DTMF decoder could cause conflicts when another Port is decoding DTMF.

Fixed bug in CTCSS E​ncode Macro Function where if multiple ports were defined for speech, encode didn't turn on Fixed bug in speech PTT control where PTT would intermittently drop between words if defined to speak out more than one Port and hangtime for that Port was less than 2 seconds.

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Other versions for this product

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