Kenwood TS-990S
firmware v1.04
Kenwood · Released Aug 23, 2013 · First seen Sep 6, 2026
Source:
kenwood.com
v1.04 is not the latest firmware for the Kenwood TS-990S: the current version is v1.26 (September 25, 2023). Go to v1.26
In short — summary by updatemystuff.com
Resolved RTTY garbled text and ARCP-990 power detection issues.
- RTTY function no longer garbles certain character sequences
- ARCP-990 correctly detects power-off when low-power standby is enabled
Written from Kenwood's release notes, which are printed in full below.
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What's in this update
The following symptoms are revised.
- When sending certain character sequences using the built-in RTTY function, garbled text might be encoded.
- When Advanced Menu No.22 "Standby State Low Power Consumption" is set to "On" and the TS-990S is turned off by the front panel power switch, the ARCP-990 may not detect the power off status correctly.
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