Owner`s manual

Preparing for Installation

Tools Required

1. #0 and #1 size Phillips screwdrivers. To avoid damaging screws and nuts, a power screwdriver is not

recommended. Use the screwdriver that best fits the screw in each step.

2. Soft cloth or clean, soft static dissipating pad to lay cabinet panels on to avoid scratching.

3. Long (needle) nose pliers.

4. Second pair of pliers or a 5/16” nut driver to tighten the SMA connector nut.

The following tools are strongly recommended:

1. ESD wrist strap.

2. Static dissipating work pad.

Firmware Required

The K3EXREF requires firmware version 4.28 or later installed in your K3. Your K3 Owner’s manual has

complete instructions for updating your firmware.

Parts Included

The following parts should be included in your kit. Check to ensure you have them all. If any parts are damaged

or missing, contact Elecraft for replacements (see Customer Service and Support, page 3).

ILLUSTRATION

DESCRIPTION

QTY.

ELECRAFT

PART NO.

K3EXREF Circuit Board

E850476

Header Shorting Block, 2-pin (May be

already installed on the K3EXREF circuit

board, J1, see Figure 8 on pg 9).

E620214

Screw, Pan Head, 5/8” (15.9 mm)

E700114

Lock Washer, 4, Split Ring

E700004

Lock Washer, 4, Inside Tooth

E700010

Spacer, 1/4” (6.4 mm).

E700220

TMP Cable Assembly with Mounting

Hardware (see Figure 3, pg 7).

E850446

SMA-BNC Adapter, M-F

E620216