Kenwood TS-990S
firmware v1.25
Kenwood · Released Mar 12, 2020 · First seen Sep 6, 2026
Source:
kenwood.com
v1.25 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
Reduces CW switching noise, cuts standby power consumption, updates memory defaults.
- CW full break-in TX/RX switching noise reduced
- Standby power consumption reduced from approximately 20W to 12W
- Expanded memory channel defaults updated per band plan
Written from Kenwood's release notes, which are printed in full below.
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What's in this update
The following features are updated.
- Improves the power supply circuit control in order to reduce the standby power consumption at transceiver power turned OFF when Advanced Menu No.22 "Standby State Low Power Consumption" is "Off" from 20W (approx) to 12W (approx).
- Reduces TX/RX switching noise in CW full break-in operation in the sub band.
- Revises the expanded memory channels (E0~E4) default values according to the band plan. (K-type for USA and Canada only)
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