Kenwood TS-590SG Manual

Also see for TS-590SG: Reference guide Setting manual Setting manual Instruction manual Instruction manual

Contents

STRUCTURAL FEATURES 0753We will provide the temperature data when a continuous transmission is made at a 25 C or 77 F room temperature sothat you can understand the TS-590S/SGs superb cooling capability.Figure 7-6 Temperature Data while Transmitting ContinuouslyAs can be seen from the above graph, the output power does not drop (the protection is not activated) while transmittingcontinuously for more than two hours at a 25 C or 77 F room temperature with an output power of 100 W.As explained above, TS-590S/SG is designed for heavy-duty operation as were the previous HF transceivers, but, as ageneral rule not limited to KENWOOD products, the higher the temperature, the shorter the life span of an electronic device.Therefore, we recommend you use the transceiver with an appropriate output power that suits the circumstances in orderto prolong the longevity of the transceiver.7.2 LCDWe wanted to complete the display without uneven brightness! That was our goal of designing the display screen, or theface of the transceiver. On the TS-590S/SG, after repeated examinations and trials, we have finally reached our goal ofa display with perfectly even brightness.The secret of this even brightness lies in the illumination structure of the LCD.The TS-590S/SGs illumination structure is a bottom direct-lit type backlight structure in which LEDs are lit from the reverseside of the LCD. In the stage of discussing the structure, we have also examined front-lit and edge-lit designs that havebeen already proven in the previous transceivers, but they didn t suit the display size of the TS-590S/SG, resulting in unevenillumination. So, we focused on the bottom direct-lit type backlight structure and further studied the design.We would like you to confirm the beauty of the display with your own eyes.And the TS-590SG allows you to select an intermediate color between the conventional amber and green. There are 10selectable intermediate colors. Besides amber and green, you can now select an intermediate color such as yellow andcustomize it as your preferred backlight color.In addition to the backlight itself, we also carefully designed the brightness (dimmer setting) of the backlight and thesegment displays for better visibility. You can choose among 7 steps of brightness (OFF and 1 though 6) of the backlightin the menu mode.The TS-590S/SG has more dimmer setting steps than the TS-570 or TS-2000/X, allowing a user to adjust the backlightbrightness to suit the installation environment. For the segment displays on the LCD, we have adopted a large-size, positiveLCD.Focusing on the visibility, for 7-segment and 13-segment displays, we have adopted the same large-size characters as inthe TS-570 that were highly evaluated. The type of LCD chosen is a semi-transmissive TN LCD (1/3 duty) that has highcontrast.