Kenwood TS-990S
firmware v1.06
Kenwood · Released Mar 27, 2014 · First seen Sep 6, 2026
Source:
kenwood.com
v1.06 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
Fixes S-meter sensitivity on high frequencies, eliminates click noise at TX start, and corrects band memory display after power cycle.
- S-meter sensitivity corrected at 21.5-30MHz with preamplifier
- Click noise eliminated at TX tuning start
- Band memory display fixed after power cycling
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.
- On 21.5MHz ~ 30MHz when preamplifier is on, the S-meter may appear too sensitive to variations in signal levels due to excessive IF gain.(The update does not affect RX sensitivity.)
2.
Just after TX tuning starts, a click noise may be heard momentarily.
- Stored band memory number may not be indicated correctly just after the power is turned OFF and ON by the rear panel main power switch.
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