Related Manuals for ELECRAFT K3EXREF
Summary of Contents for ELECRAFT K3EXREF
- Page 1 LECRAFT 160 – 6 M ERFORMANCE ETER RANSCEIVER K3EXREF FREQUENCY LOCK OPTION NSTALLATION AND OPERATION Revision A, May 11, 2011 Copyright © 2011, Elecraft, Inc. All Rights Reserved...
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Page 2: Table Of Contents
Parts Included ..............................5 Installation Procedure ............................6 Removing the K3Top Cover and Chassis Stiffener ..................6 Installing the TMP Cable ..........................6 Installing the K3EXREF Board........................9 Reassembly ..............................10 Elecraft manuals with color images may be downloaded from www.elecraft.com. -
Page 3: Introduction
Who is covered: This warranty covers the original owner of the Elecraft product as disclosed to Elecraft at the time of order. Elecraft products transferred by the purchaser to a third party, either by sale, gift or other method, who is not disclosed to Elecraft at the time of original order, are not covered by this warranty. -
Page 4: Using The K3Exref
Using the K3EXREF If you are installing the K3EXREF yourself, go directly to Installing the K3EXREF below. The operation of the K3EXREF is automatic, once a suitable signal is applied to the K3’s rear-panel REF. connector. To confirm the external reference controls the K3 reference oscillator: ... -
Page 5: Preparing For Installation
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). -
Page 6: Installation Procedure
Installation Procedure Removing the K3Top Cover and Chassis Stiffener Disconnect power and all cables from your K3. Remove the nine screws to free the top cover as shown in Figure 1. After the cover is open, lift it gently to reach the speaker wire connector. - Page 7 Figure 2. Freeing the K144XV Module. 3. Unplug the coaxial cables leading to the K144XV module and set the module aside. The coaxial cables have friction-fit TMP connectors that simply pull out of the sockets (see Figure 6 on pg 9). Pull on the metal connector grips.
- Page 8 Route the cable under the RF board and toward the front of the K3 as shown in Figure 4. Keep the cable near the edge of the board as shown. Figure 4. Routing the SMA Cable Under the RF Board. Route the cable through the notch near the front of the RF board and up between the front panel shield and the front panel board assembly.
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Page 9: Installing The K3Exref Board
KREF3 board. If present, remove it with your needle nose pliers. Figure 7. Removing the KREF3 Hardware. Check the K3EXREF board and, if not already present, install the shorting block across the center pins of J1 (see Figure 8.) -
Page 10: Reassembly
Install the K3EXREF board on the KREF3 board as follows (see Figure 9): 1. Place a #4 inside tooth lock washer on the 4-40, 5/8” (15.9 mm) pan head screw. 2. Slip the screw through the hole in the K3EXREF board with the head on the non-component side of the board. - Page 11 (the parts you removed from the KREF3 board). If needed, install the SMA-BNC adapter on the rear panel connector you installed earlier. REF. See Using the K3EXREF on pg 4 to confirm it is operating correctly. That completes the installation of your K3EXREF Option.
- Page 12 These illustrations show the TMP cable connections to the KREF3 board for reference during reassembly. Refer to Installing the K3EXREF on pg 4 for installation details. Note that the K3EXREF SMA cable that connects to the KREF3 board through the hole in the front panel shield is not shown.