ELECRAFT KPA500 Bedienungshandbuch

ELECRAFT KPA500 500-WATT AMPLIFIER OWNER’S MANUAL Revision D, December 24, 2013 Copyright © 2013, Elecraft, Inc. All Rights Reserved

10 Power Supply Voltage Test Test the power supply voltage output as follows: The top cover must be in place on the KPA500

11 Connections to the Amplifier Always turn the amplifier off using the rear panel switch ( in Figure 1) before attaching

12 Figure 2. Basic Cabling Diagram for Any Transceiver.

13 Figure 3. K3 Enhanced Cabling Using KPAK3AUX Cable.

14 Figure 4. K3 Enhanced Cabling Using KPAK3AUX Cable and Separate Key Line.

15 Operation Power On 1. Ensure a suitable 50 ohm load is attached to the RF OUTPUT connector on the rear panel (Figure 1,

16 Band Switching Automatic Band Switching: The KPA500 automatically measures the frequency of the RF drive and selects the

17 3. Increase the drive power and confirm that the SWR bargraph indicates less than 1.5 while the output indicated by th

18 Monitoring KPA500 operation is monitored by the LEDs , and and reported in text on the LCD. LEDs The SWR of the loa

19 Fault Conditions The FAULT indicator lights and the speaker sounds to indicate a fault condition has occurred. To avoid

2 Contents Introduction ...

20 Menu Holding MENU enables the menu function to allow the following parameters to be set. With the menu function enabled

21 Firmware Updates From time to time updated and improved firmware may become available for the KPA500. To update firmware

22 Wattmeter Calibration Procedure If you have a wattmeter that you feel is more accurate than the KPA500 wattmeter, you can

23 Specifications Frequency Range All Amateur Bands from 1.8 to 29.7 MHz and 50 to 54 MHz Supply Voltage and Current 100

24 Customer Service and Support Technical Assistance You can send e-mail to [email protected] and we will respond qui

25Theory of Operation When the KPA500 is in operating (OPER) mode, RF is routed by the transmit-receive (TR) switch to the power amplifier (PA)

26AUX Connector Interface Do not attach a common VGA cable to the AUX connector. The AUX connector provides an optional interface that more clo

27Elecraft KPAK3AUX K3 Cable This is available direct from Elecraft (pg 24): order KPAK3AUX . For the complete set:  KPAK3AUX Cable, 59.5” (1.

28Yaesu Cable Although various models of Yaesu radios use either DIN8/262 or a MiniDIN8 connector, the pin connections are the same. Pins not sho

3 WARNING Dangerous Voltages Inside the KPA500 Before opening the KPA500 enclosure: 1. Turn off the KPA500 by tapping the

4 Introduction On behalf of our entire design team, we’d like to thank you for choosing the Elecraft KPA500 amplifier. The

5 Installation Installation consists of the following:  Installing fuses and setting the internal transformer taps accordi

6 Mains Voltage Settings Your KPA500 is supplied with the power cable you ordered; either one using the 115VAC connector com

7  Replace the fuse block so that the correct mains voltage appears in the window in the cover. The orientation of the fus

8  Close the cover and be sure the fuse block is oriented correctly showing the proper mains voltage as shown below: If

9  Remove the 14 screws securing the KPA500 top cover as shown below. Do not remove the screw indicated. It is part of the