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Elecraft KAT2 User Manual

Page 3

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3

Hardware and Miscellaneous

Ref. Description

Qty.

HDWR

Rubber insulator, 0.5” dia. (round, black), p/n 6135-017-BLK

6

HDWR

Socket for U1, 40 pins, open frame

1

J7

Conn., 2-pin housing, 0.156", Digikey WM2111

1

HDWR

Female crimp pin for J7, gold, Digikey WM2305

2

J8

Conn., 10-pin dual-row 0.1" housing, Digikey WM2522

1

HDWR

Female crimp pin for J8, tin, Digikey WM2556

12

RF-P6

Conn., 2p male, 0.156”, gold, Digikey WM5224

1

HDWR

#4 split lock washer

6

HDWR

4-40 x 1/4” ZN ST Phillips machine screw

4

HDWR

Standoff, 3/16” dia. x 13/16”, 4-40 thd, RAF #1642-440-A

2

HDWR

Binding post, black, 6-32 threaded, Keystone #7007

1

HDWR

BNC connector cap, black plastic, 3/8" dia. x 1/2” long

1

MISC

Enamel wire, #26 Thermaleze, GREEN

2 ft.

MISC

Enamel wire, #26 Thermaleze, RED

10 ft.

MISC

Insulated hookup wire, #24, solid

1 ft.

MISC

Cable, 4-conductor + shield, Digikey W404-X-ND

2 ft.

MISC Coaxial

cable, RG-174

1 ft.

MISC KAT2

Control

board

1

MISC

KAT2 L-C board

1

MISC Cable

ties,

3”

4

i

Caution:

Some components in this kit can be damaged by static discharge. Before

handling any transistors or integrated circuits, always put on an anti-static wrist strap or touch any
grounded, unpainted metal surface.


K2 Firmware Requirements


To use the KAT2 antenna tuner, you'll need K2 main processor firmware revision 1.04 or later. (The main
processor is U6 on the K2's control board.) Revision 1.05 or later is recommended, since it provides
additional ATU operating features (see Using the ATU). The latest K2 firmware revision can be ordered as
an upgrade (refer to our web page for details).

To check your main processor firmware revision, hold any button when powering up the K2. The number
shown at the left end of the display is the revision number. If you have an older version, contact Elecraft.