Elecraft KAT2 - Manual (Page 3)

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
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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.