TS-990S

control

High reliability design promises stable operation at 200 W

The POWER MOS FET VRF150MP runs at 50 V in push-pull. You can obtain a stable output of 200 W on all bands. You achieve superior IMD properties by pursuing bias and matching conditions in order to fully exploit the FET attributes. Further, you can realize KENWOOD's distinctive tone by amplifying the clean modulated signal produced by DSP with an amplifier that exhibits excellent linearity.

Built-in automatic antenna tuner capable of high-speed operation

The built-in automatic antenna tuner is a preset type that covers amateur band frequencies ranging from 160m~6m, and is completely operable during receive. The tuner is capable of rapid QSY based on instantaneous band change, using a relay system known for high-speed operations.
The relays, capacitors, and inductors use large-sized components that are able to bear the 200 W output.

Cooling system to send a sufficient volume of air to each unit

The built-in automatic antenna tuner is a preset type that covers amateur band frequencies ranging from 160m~6m, and is completely operable during receive. The tuner is capable of rapid QSY based on instantaneous band change, using a relay system known for high-speed operations.
The relays, capacitors, and inductors use large-sized components that are able to bear the 200 W output.

Thermal Simulation Example
To dissipate the heat of the 200 W final, we used swage fins instead of the conventional extruded aluminum fins. Using CAE analysis, we designed the optimal fin shape and size for heat dissipation.