Elecraft KPA500 Owner's Manual - Manual (Page 23)

23
Specifications
Frequency Range All Amateur Bands from 1.8 to 29.7 MHz and 50 to 54 MHz
Supply Voltage and
Current 100 to 125 VAC or 200 to 250 VAC, 50/60 Hz, approx. 1000 VA
Weight 26 lbs (11.8 kilograms)
Size Enclosure only, 4.0 x 10.8 x 10.0 in., HWD (10.2 x 27.4 x 25.4 cm). With projections,
4.4 x 10.8 x 11.8 in. (11.2 x 28.4 x 30.0 cm). The projections are the bottom feet and
the fan and cable connectors on the rear. When installing, allow an additional 2”
(5.1 cm) behind the fan and at least 1” (2.5 cm) above the top cover for unrestricted air
flow.
Power Output 500 watts PEP CW/SSB/Data
Duty Cycle at 500 Watts 10 minutes key down / 5 minutes standby
Drive Power 30 to 40 watts for 500 watts output
Input VSWR Less than 1.5:1
ALC Out Negative-going, adjustable.
Metering Power Output, SWR (bargraph and on the LCD display), supply voltage and current,
temperature, frequency band.
PA Current 20 A maximum
PA Voltage 60 VDC, nominal
Heat Sink Temperature 90°C, maximum
Key In +5V maximum, open circuit on receive, closed to ground on transmit (1 mA max.)
Efficiency Approximately 50%