10
Removing LCD Protective Film
Carefully peel the protective film off the LCD. There's a small plastic
tab at the upper right corner for this purpose. If the film is left on, it
will degrade the appearance of LCD graphics as well as touch screen
performance.
Power Supply
Use the shortest practical length of power cable, with heavy wire
gauge to minimize voltage drop. The supplied power cable includes
fuses in both legs. The supplied cable is #12 AWG, and the fuses in
each leg are rated at 25 amps.
A power supply voltage of 13.8 to 14.2 V is preferred. For 100 W use, a
30 amp supply is recommended. For 10 W use, a 5 amp supply will
suffice. NOTE: If use of a switching supply results in low-pitched
repetitive noise or other artifacts when monitoring your K4's signal in
another receiver, consider using a well-regulated and filtered linear
supply.
Minimum supply voltage is 11.0 V. The K4 will automatically reduce
power output if the supply voltage is too low to maintain good IMD
performance at the selected RF output level.
Interfacing to Station Equipment
Refer to the REAR PANEL CONNECTIONS section, below, for
descriptions of all connectors and interfacing requirements. At
minimum you'll need to connect a power supply, antenna, and station
ground.
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