Elecraft KXPD1 User Manual
ELECRAFT KXPD1 PLUG-IN KEYER PADDLE
Assembly and Operating Instructions
Revision B, July 27, 2011. Copyright © 2011, Elecraft; All Rights Reserved
Introduction
The KXPD1 is a unique plug-in keyer paddle that attaches directly to the Elecraft KX1 portable HF
transceiver. It adds just 1 oz. to total station weight, so it's an ideal solution for backpacking. Use of the
KXPD1 greatly simplifies field operation, whether the operator is sitting on the ground, in a beach chair,
standing, or even reclining. But the paddle is also very effective for use at home or on a picnic table.
The iambic (dual-lever) paddles are angled at 45 degrees for ease of use. Both left- and right-handed
operators can use the KXPD1, since it is physically reversible. The dot/dash lines can also be electrically
reversed, or the paddle set up as a hand key, simply by changing the input device selection (
entry).
A captive thumb screw holds the KXPD1 firmly in place during use. For transport, the paddle can be
quickly removed. Solid silver contacts with protective rubber grips and a rugged, custom mounting bracket
ensure excellent field reliability. After initial set-up, no adjustments are required.
Specifications
Paddle type Iambic (dual lever)
Contacts Silver, protected by silicone rubber grips
Size 2.7" (L) x 0.8" (W) x 1" (H) (6.8 x 2 x 2.5 cm)
Weight Approx. 1 oz. (30 g)
INP menu
Elecraft • www.elecraft.com • 831-763-4211
Parts List
Drawing Description Qty Part No.
Lever, spring steel
i
DO NOT FLATTEN OR BEND THE
2 E100182
LEVER. IT IS FABRICATED WITH A
PRECISE AMOUNT OF TENSION AND
CURVATURE.
Grip, molded rubber
i
Do not tear or puncture the grips. Also do
not attempt to clean them. They will have slight
variations in surface texture or color due to the
molding process.
Bracket, aluminum
Thumb screw, captive 1 E100186
th
Plug, 1/8
-inch (3.5 mm) stereo
2 E100181
1 E100177
1 E620070
Note: The plug's handle will not be used.
Silver wire, #24 solid, bare 2" E760024
PC Board, KXPD1 2 E100176
Lock Washer, #4 (2 spares) 6 E700004
Screw, 4-40 x 3/16" (4.8 mm) pan-head (2 spares) 6 E700015
Hookup wire, #24 solid, insulated 1 ft. E760008
Hole Cover Label 1 E980096
Washer, Flat, Stainless Steel, 0.010 Thick, #6 1 E700117
Lock Washer, Internal Tooth, #6 1 E700095
2
Assembly
Break off the ground tab of the plug (longest of the 3 terminals) by flexing it a few times (Figure 1).
Figure 1
Thread the plug into the flat end of the bracket until the plug's bushing is flush with the face (Figure
2). If the fit is too tight to thread the plug in by hand, grip the plug's shaft with long-nose pliers. (To protect
the plug's finish, wrap it with a piece of cloth, ribbon, or tape.)
Figure 2
Cut two 0.5" lengths of the bare silver wire. Form each wire into a U-shape with sharp bends as
shown in Figure 3a. The legs should be spaced 3/16" (4.8 mm) apart.
(a)
3/16"
(b) (c)
KXPD1 REV B
(d)
Figure 3
Insert the U-shaped wires into the two small holes at the end of each PC board as shown above. The
wire is inserted from the side identified in (b), then folded flat on the side shown in (c). The wire must be
pressed flat against the board on both sides (d).
Solder the wire only on the side identified in Figure 3c. Do not apply any solder to the side shown
in (b). Do not attempt to fill the plated-through hole with solder, as it may flow onto the contact point
on the other side.
3
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