JK Audio CellTap User Manual

Warranty

The model CellTap is covered by a 2 year
warranty to be free from defective workmanship
and materials. In the event that the CellTap
needs repair, you must call us to get an
authorization, and then carefully pack and ship
it to us. You will pay for shipping to us and we
will pay for return back to you, UPS ground. No
free repairs will be made if the defect was
caused by misuse, weather conditions, or other
cause, except for defective workmanship or
materials. THERE ARE NO EXPRESSED OR
IMPLIED WARRANTIES WHICH EXTEND
BEYOND THE WARRANTY HERE MADE.

06/06

JK Audio, Inc. 1311 E 6th Street, Sandwich, IL 60548 USA

Voice: [phone] Toll Free: 800-JK-Audio

Fax: [phone]

[e-mail] www.jkaudio.com

Copyright © 2006 JK Audio, Inc. All Rights Reserved

CellTap

Wireless TelephoneTap

User Guide

JK Audio

Description

FAQ’s

CellTap must be used with an earpiece or head­set. Your cell phone will not recognize CellTap
on its own.

Although CellTap is designed to work with any
cell or wireless phone that accepts a third party
earpiece or headset, there are no standards for
this connection and we cannot guarantee com­patibility.

To recorder or
powered speakers

2

? I just purchased one of your Cell Taps

and the headset jack doesn't seem to
work. The only thing we can record is
the incoming audio, not our own. What
can we do?

! Many cell phones do not provide sidetone,

which is your own audio at the headset out­put jack. If your audio is not present at the
headset jack, it cannot be recorded as there
is no other way to access the audio on a
cell phone.

7

2

7

FAQ’s

Operation

? Will CellTap work with my model

______ cell phone?

! As long as your wireless phone has a 2.5

mm earpiece jack and accepts a generic
3rd party earpiece or headset, you should
be OK.

? Can I talk on my handheld phone and

record the conversation using a Cell­Tap?

! No, most phones detect the presence of

anything plugged into the headset jack and
immediately disable the phones micro­phone and speaker.

? What if my phone does not have a 2.5

mm earpiece / headset jack?

! Many phone manufacturers sell an adapter

that allows connection of a 2.5 mm plug.
You can often find these adapters where
you purchased your phone, in electronics
stores, or on many websites.

6

6

Connect CellTap between the 2.5 mm earpiece
jack of your cell phone and your earpiece or
headset. Now connect a tape recorder or pow­ered speakers to the 3.5 mm mini jack. This
audio output contains a nice mix of both sides
of the conversation.

Group Listen - Simply connect a powered
speaker to the audio output jack and you will
have a new conferencing capability. Everyone
in the room can hear your conversation, but
only the person wearing the headset can talk to
the distant party. While this is not a speaker­phone, in many cases it is better.

Note: Wireless phones generate substantial
radio frequency (RF) noise during a call which
can easily leak into audio cables or equipment.
Be sure to keep the wireless phone one to two
feet away from any audio cables or equipment.

3

It is also important to keep the wireless adapter
cord away from any other audio cords.

3

Operation

Specifications

Any cellular phone with a 2.5mm 3 conductor
headset jack will connect directly. Most Nokia
phones require a headset adapter to convert
their proprietary headset jack to a standard

2.5mm 3 conductor headset jack. Nokia
phones that have a 2.5mm 4 conductor head­set jack still require an adapter.

Wireless phones using Nextel service are not
recommended due to excessive RF noise.

Many cell phones do not provide sidetone,
which is your own audio at the headset jack. If
this is the case with your cell phone, then your
recordings will contain only the caller’s audio,
not your own. Because this is the way your
phone was designed, there is nothing you or
the CellTap can do to record your audio. To
test your phone, connect your headset to the
phone. Place a call to a quiet location and lis­ten carefully as you speak into the microphone

4

to determine if you hear your own voice in the
earpiece.

4

Audio Output

Connector 3.5mm Mono Jack
Output Impedance 600 ohms
Level 100 mV RMS
Isolation 1500 VRMS

Headset Jack

Connector 2.5mm Micro Jack
3 conductor

Wireless Phone Jack
Connector ¼” - 3 conductor
(36” cable provided
¼” 3 conductor to

2.5 mm 3 conductor)

This device is passive, no AC or battery
power needed.

5

CellTap is not Bluetooth compatible.

5