Elecraft ProSet-K3 User Manual

Elecraft

®

ProSet – K2/K3 Boom Headset Assembly and Operating Instructions

Revision C May 30, 2009

Copyright © 2009, Elecraft, Inc.; All Rights R eserved

Elecraft is a registered trademark of Elecraft, Inc.

INTRODUCTION

The Proset-K2/K3 is the result of collaboration between
Elecraft and Heil Microphones to produce a high-performance
headset and boom-mounted condenser microphone optimized
for the Elecraft K2 and K3 transceivers. The Proset – K2/K3
provides excellent frequency response and gain.

Note: The ProSet-K2/K3 is supplied ready for VOX operation.
If you wish to use Push-to-Talk (PTT, you must supply a
suitable normally-open switch and male 1/4” connector. This
connector attaches to the AD-1-K microphone plug adapter
supplied.

SET UP AND OPERATION FOR THE ELECRAFT K3

Important! The following applies only to an Elecraft K3. See the next page if you have an Elecraft K2.

No internal hardware changes are required to use your
ProSet – K2/K3 with the Elecraft K3. Setup consists of
connecting the microphone using the adapter provided,
plugging in the headphones, setting MENU commands and
making other front-panel adju stments.

Note: The jumper blocks and 5.6 k resistor supplied wi t h
your microphone are not used. They are required only when
using the ProSet – K2/K3 with an Elecraft K2.

The K3 can receive microphone input from either front
or back panel connectors. Select the front panel connector as
follows:

into the gray jack on the AD-1-K adapter.

AD-1-k adapter. (The PTT switch is optional.)

1. Tap MENU and locate MIC SEL with VFO B.

2. Select FP.L or FP.H with VFO A.

3. If

FP.H is displayed, tap the 1 button to toggle the

display to show FP.L.

4. Tap the

turns on the bias voltage required by the ProSet –
K2/K3 microphone.)

Plug the 1/8” microphone plug on the ProSet-K2/K3

If used, plug your PTT switch into the 1/4” jack on the

2 button as needed to display bI AS. (This

Parts Supplied

QTY Description

1 Proset-K2/K3 Boom Headset
1 AD-1-K (red) microphone plug adapt er
1 Black Microphone Windscreen
1 5.6K ¼ W Resistor (E500007) (For K2 only)
8 Mic. Configuration Jumper Blocks (E620055)

(For K2 only)

Plug the AD-1-K adapter into the K3’s MIC connector
and the ProSet – K2/K3 headphone plug into the K3’s
PHONES connector.

Chose a voice mode (AM, FM, USB or LSB) your K3
is equipped to operate. Set the K3 power level to 5 W and
make sure an appropriate dummy load or antenna is attached
to the K3. Hold
operation.

Press your PTT button or, if using VOX, speak into the
microphone. You should observe movement on the K3’s
power meter. Adjust the K3 front panel MIC (microphone
gain) and CMP (compression) controls as needed.

This confirms that your microphone is working. Refer to the
K3 Owner’s manual for adjusting your K3 for optimum
results. See Basic Operation, Voice Modes, SSB, AM, FM as
well as Advanced Operating Features.

VOX to select either PTT or VOX

In Case of Difficulty

If you have problems getting your ProSet – K2/K3 to
operate with your K3, first confirm that you have enabled
the external microphone bias (see the first step of the above
procedure). If this does not correct the problem, please
consult Troubleshooting in your K3 Owner’s Manual.

Also, please feel free to email us at [e-mail]
with your questions.

Elecraft, Inc. • www.elecraft.com • 831-662-8345

.

SET UP AND OPERATION FOR THE ELECRAFT K2

Important! The following applies only to an Elecraft K2. See first page if you have an Elecraft K3

The PROSET-K2/K3 is pre-wired for the Elecraft default
microphone configuration. Installation consists of placing
the 8 jumper blocks straight across the pins of the K2’s
microphone configuration block (P1) and adding a 5.6K
resistor between pin 6 and pin 1 on the rear of the K2
microphone connector.

Remove the four exterior screws securing the K2 Front
Panel assembly to the front of the K2 case and the two
interior screws holding the Control Board to the Front Panel
board.

Remove the Front Panel assembly by gently pulling it
away from the K2 case.

Test and Set Up

Plug the 1/8” microphone plug on the ProSet-K2/K3

into the gray jack on the AD-1-K adapter.

If used, plug your PTT switch into the 1/4” jack on the

AD-1-k adapter. (The PTT switch is optional.)

Plug the AD-1-K adapter into the K2’s microphone

connector (lower left corner of the front panel).

The ProSet – K2/K3 comes with a 1/8” to 1/4”
headphone plug adapter installed. Separate the adapter to
expose the 1/8” plug and insert that into the headphone jack
next to the microphone connector.

Refer to your K2 and KSB2 manuals as needed and set
the following:

1. SSBA=1

2. SSBC = 2

3. POWER = 5 watts

4. VOX on or off as desired.

5. Attach a suitable dummy load to the K2 Ant. jack.

Figure 1. Jumper Blocks and Mic Bias Resistor

(K2 ONLY!)

Install the eight supplied jumper blocks on the
Microphone Configuration Header (P1), located on the rear
of the Front Panel board (see upper left area of Figure 1).
Install each jumper so that it connects each adjacent pair of
pins. Pin 1 to AF, Pin 2 to PTT, Pin 3 to DN etc. as shown.

Install the supplied 5.6K resistor on the rear of the 8 pin
microphone connector between pin 1 an d pi n 6 (see Figure

1). Solder each end of the resistor and trim the excess lead
length.

Plug the Front Panel assembly back into the RF Board.
Secure it to the chassis (4 screws) and Control Board (2
screws).

Speak into the microphone (if using PTT, press the
switch). You should observe movement on the K2’s power
display.

This confirms the microphone is working. Refer to Using the
SSB Adapter in the KSB2 manual for more details on SSB
set up and operation. You may wish to optimize the K2’s
transmit audio by adjusting the BF1t settings for USB and
LSB. See SSB Transmit BFO Optimization in the KSB2
manual. Adjusting these settings allows you to shift the K2’s
transmit frequency response up or down to match your
personal voice characteristics and taste.

In Case of Difficulty

If you have problems getting your ProSet – K2/K3 to
operate with the K2 first confirm that you have properly
installed the eight microphone configuration jumpers and the

5.6K resistor. If you have not previously confirmed the
operation of your KSB2 with another microphone, refer to
the troubleshooting section of the KSB2 manual.

Also, please feel free to email us at [e-mail]

.

Elecraft, Inc. • www.elecraft.com • 831-662-8345