Main Control Knob; Top And Bottom Casing - Kenwood TS-590SG Manual

07 STRUCTURAL FEATURES
Good outdoor sunlight visibility is another reason why we have chosen a semi-transmissive LCD. The TS-590S/SG has
a semi-transmissive LCD using a white reflection plate. And this LCD type delivers comfortable visibility under sunlight.
Hence, the transceiver maintains good visibility characteristics outdoors as well as indoors.

7.3 Main Control Knob

We have designed the main control knob located in the center of the front panel, focusing on easy handling and good
appearance.
For the encoder, a 250-pulse magnetic encoder is adopted, which enables the pulses are multiplied by 4 using software
to produce 1,000 pulses per revolution so that a user can tune to the desired frequency smoothly.
Each of the aluminum parts is machined with CNC (computerized numeric control) and treated with spin finish. We also
paid careful attention to the color of the main control knob; we have colored the knob with a color alumite treatment.
The alumite color is adjusted to match the rubber color of the knob ring and the paint color of the front panel in order to
express the integration and massiveness of the entire panel.
To further enhance the elegant feel of the TS-590SG, two parts are diamond cut, while spin finish is also applied for a
closer resemblance to the TS-990S.
Not only for the main control knob, easy handling was our priority when designing the sizes and locations of other controls
(knobs and keys). We carefully studied the sizes and layout of the knobs so that a finger will not hit the adjacent knob when
a user turns a knob.
Though the TS-590S/SG has a relatively compact front panel as an HF transceiver, the controls are positioned for comfortable
operation.

7.4 Top and Bottom Casing

Compared to the TS-590S, one of the modifications made on the TS-590SG is the paint for the top and bottom casings. A
powder coating finish has been applied to the surface of the TS-590SG to prevent stains such as fingerprints, so that the
product can be maintained in a good condition for many years to come.
In addition to stains including fingerprints, the powder coating is also resistant against corrosion (rust, etc.) and scratches.
The same top and bottom casings are also employed on the TS-990S , with a high-grade finish that is also adopted for
motorbike frames and car wheels in general.
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Figure 7-7 Backlight Color (10 Gradations)
Main control knob
Figure 7-8 Main Control Knob