Elecraft KPA100 Manual - Manual (Page 64)

64
K2/100 Specifications
All measurements were made using a 13.8 V, 20-amp power supply and
50-ohm load. Numeric values are typical; your results will be somewhat
different. Specifications are subject to change without notice. (Note:
specifications in section 2 of the K2 owner's manual apply to the KPA100
except where superceded here.)
Weight
5 pounds
Supply voltage
11 to 15 VDC, 13.8 V nominal
Current drain,
Receive 4 PA OFF (QRP mode): 0.2-0.4 A
PA ON (QRO mode): 0.3-0.5 A
Transmit 5 15-20 A typ. @ 100 watts
Frequency ranges
Same as K2, except 25-27.999 MHz
transmit is excluded in high-power mode
Power output
0.1 to 100 W, adjustable
Spurious emissions
Better than -40 dB @ 100 W
Harmonic content
Better than -40 dB @ 100 W 6
Cooling
2-speed fan 7
4 These figures reflect the total current drain in receive mode. The current drain
indicated on the K2's LCD in voltage/current monitor mode will be lower
because some circuits on the KPA100 are powered from the KPA100's DC input
jack. For details, see the Operation section of the this manual.
5 Current varies with band, supply voltage, configuration, and load impedance.
External 20-A in-line fuse required if power supply does not include a fuse or
circuit breaker.
6 Frequency counter cable removed. Adding the cable with the PA installed
slightly increases spurious content on some bands. Keep the cable to the shortest
possible length if it is installed (about 6").
7 The fan control circuit should not be used to directly drive a supplemental
external fan.
Key-down time
At full power (100 W),
10 sec max. recommended
Keying
Full break-in, diode switched
PA KEY output
8
Compatibility DC relay coil, pulled to ground
(do not use with AC-controlled relay)
Current
1 A
Voltage +200 VDC, maximum.
RS-232 interface
Data rate 4800 baud
Format 8 data bits, no parity, 2 stop bits
Handshaking None required
ESD protection +/- 15 kV
Speaker
Internal 4 ohm, 3 watt, shielded
External Rear-panel mono jack
8 Select "8R Hold" operation in the K2 menu as described under 8R Menu Setting
on page 47.