JK Audio THAT-1 User manual

JK Audio
THAT-1™
Telephone Handset Audio Tap
User Guide

ii THAT-1 Telephone Handset Audio Tap
Welcome
Thank You
Thank you for purchasing the
JK Audio THAT-1. Please read this
guide for instructions on setting
up and using your new product.
Getting Assistance
If you have any questions,
call us M-F: 8:30am-5:00pm (CT)
In the US & Canada (Toll-Free)
800-552-8346
All other countries dial:
815-786-2929
Email us at:
[email protected]
Or, check out our FAQ section
for answers to common questions.
Limited Warranty
THAT-1 is covered by a 2 year
warranty to be free from defective
workmanship and materials. To obtain
service, contact JK Audio by phone
or email for return authorization.
Once authorized, you will carefully
pack and ship the faulty product and
all accessories to us. You will pay
for shipping to us and we will pay for
return back to you.
This warranty does not cover damages
due to accident, weather, re, ood,
earthquake, misuse, unauthorized
repairs or modications, or damages
occurred in shipping, only defective
workmanship or materials.
There are no expressed or implied
warranties which extend beyond
the warranty here made.

Contents iii
Overview 1
Setup 3
Operation 4
FAQs 6
Technical Information 8
Contents
Note: While THAT-1 was designed to be very rugged and durable, it is not waterproof and
care should be taken to keep the unit dry.

iv THAT-1 Telephone Handset Audio Tap
Works withAnalog, Digital, PBX, and VoIP Telephones
RCA Input & Output
Output Level Control
Passive Design. No Battery or AC Required
In the Box
1/8" (3.5mm) to RCA Cable
Features

Overview 1
Introducing THAT-1
Connect THAT-1 between your
telephone and handset for quick
access to audio in and out of the
telephone. The THAT-1 is used by
radio stations to record and play
sound bytes, and by computer and
telephone companies to demonstrate
their computer voice services using a
powered speaker.
Play (Line In)
This is a line level input for signals
that you want to send down the phone
line. This jack can be connected to an
audio output such as the line output
from a computer or mixer, or the
headphone output from your music
player, laptop, phone, etc
Record (From Phone)
This is a variable mic level output from
the telephone.This jack provides a
mix of both sides of the conversation.
In other words, whatever you send
down the phone line will come back
on this jack mixed with the audio from
the other side of the call. This is not
adjustable.
Overview

2THAT-2 Telephone Handset Audio Tap
Overview

Setup 3
Setup
Getting Connected
THAT-1 connects between the handset and the base of your telephone. Follow
these simple steps:
1. Unplug the modular handset cord from your telephone base.
2. Using the black handset jumper cord that we have provided, connect the
<Phone> jack of THAT-1 to the handset jack on your telephone base.
3. Plug your handset cord, and handset, into the <Handset> jack on THAT-1.
4. Using the supplied adapter cable…
A. Take the left channel from a 1/8" mini stereo headphone or line output jack
and attach it to the <Line In> RCA jack on THAT-1, or…
B. Connect the <From Phone> output jack to a mic level input on your
recording device.
5. Use the Handset/Line In button to choose your operation (see page 4).
Note: Not for use with telephones that have a keypad in the handset.

4THAT-2 Telephone Handset Audio Tap
Operation
Handset/ Line In Button
The Handset / Line In button selects
which signal will be sent down the
phone line; the handset microphone,
or the line input jack.
Record (Position: Out)
Use the handset to speak and listen
as you normally would. The sound
that you hear on the handset is always
available on the <From Phone>
output jack.
Play (Position: In)
The handset mic is disconnected and
the line input is connected to send
audio signals down the line.
You can also use the Handset / Line
In button to turn o󰀨 the handset mic
if you are listening to the line output
signal over a loudspeaker. This
will prevent feedback between the
handset microphone and loudspeaker.
In any case you can always listen over
the handset receiver.
If a conict arises it will typically be
on the line input side. If you attempt
to send voice band signals down the
line input jack and the distant party
complains that the level is too loud
or severely distorted (clipping), try to
lower the transmit signal on your audio
equipment.

Operation 5
Operation
Note: Not all telephones are built alike so we
cannot guarantee THAT-1 will work with every
handset design available. We designed the
interface to work with most popular designs.

6
I have been using my THAT-1
for recording and it works
great but when I try to
send audio down the line it
won’t work.
Several things could be causing this
problem: First you must send a line
level signal into the <Line In> jack
on THAT-1. Second, make sure the
gray button is in the 'In' position.
This disables the handset mic and
enables the audio input. Third, the
phone you are using must have an
“electret” type mic in the handset. Not
all phones are the same and THAT-1
is only compatible for sending audio
with phones that have this microphone
type. You may want to consider our
THAT-2 which has a three position
switch to allow you to use it with
virtually any telephone.
FAQs
Can I get an adapter that will
allow me to connect THAT-
1 to the wall jack instead of
the phone?
No, your THAT-1 doesn’t replace
your phone,, but works in conjunction
with it. You will need to plug it in
between the telephone base and the
telephone handset.
Can I use THAT-1 with my
speakerphone?
You cannot use the speakerphone
function on your telephone and
THAT-1 at the same time. THAT-1
accesses the audio through the
handset cord. With the speakerphone
turned on, most telephones disable
the handset connection. Typically
there is no audio going through the
handset connection at the time.
THAT-1 Telephone Handset Audio Tap

FAQs 7
What is the gray pushbutton
on THAT-1 used for?
The button is used to select which
audio signal will be sent into
the telephone.
Out: Handset Audio
In: Line Input
Keep in mind that you cannot send
audio into the <Line Input> RCA
jack and talk on the handset at the
same time. However, any audio
sent into the phone can be heard on
the handset and is available on the
RCA <From Phone> output jack at
all times.
We're using THAT-1 to get
caller audio to broadcast on
our call in radio show. How do
we get better sound quality?
THAT-1 was designed for only simple
record and play applications. For
better sound quality you should
consider getting a digital hybrid such
as the Innkeeper PBX, Broadcast Host
or Innkeeper 1rx.
FAQs

Isolation
Transformer
Isolation Transformer
Signal Limiter
Handset Jack
to Phone
RCA
Output
RCA
Input
Handset Jack
from Handset
Block Diagram
8THAT-1 Telephone Handset Audio Tap

Technical Information 9
Line Input
RCA (Unbalanced): 20k ohms /
250 mV RMS (-10 dBu nom)
Output
RCA (Unbalanced): 2800 ohms
100 mV RMS (-16 dBu nom)
Misc.
Handset Jack: RJ-22
Handset Type: Electret
Size: 3.7" x 1.6" x 1.3" (9.4 x 4.1 x 3.3 cm)
Weight: 6.1 oz
Specications
Technical Information

10 THAT-1 Telephone Handset Audio Tap 1010
Your new JK Audio product has been
registered with the Federal Communications
Commission (FCC). This product complies
with the standards in Part 68 of the FCC rules.
1. Connection And Use With The
Nationwide Telephone Network
The FCC requires that you connect this
telephone equipment to the national
telephone network through a USOC RJ-11C
modular telephone jack. This equipment
may not be used with Party Line Service or
Coin Telephone Lines. This equipment is
hearing aid compatible.
2. Information For The Telephone Company
Upon request from your local telephone
company, you are required to provide the
following information:
a. The "line" to which you will connect
the telephone equipment (that is, your
telephone number), and
b. The telephone equipment's FCC
registration number. This can be
found on the bottom of your telephone
equipment.
FCC Registration

FCC Registration 111111
3. Repair Instructions
If it is determined that your telephone
equipment is malfunctioning, the FCC
requires that it not be used and that it be
unplugged from the modular outlet until
the problem has been corrected. Repairs
to this telephone equipment can only be
made by the manufacturer or its authorized
agents or by others who may be authorized
by the FCC. For repair procedures, follow
the instructions outlined under the warranty
section of the manual.
4. Rights Of The Telephone Company
If telephone equipment is causing harm to
the network, the telephone company may
temporarily discontinue your telephone
service. If possible, they'll notify you before
they interrupt service. If advanced notice
isn't practical, you'll be notied as soon as
possible. You'll be given the opportunity
to correct the problem, and you'll be
informed of your right to le a complaint
with the FCC. Your telephone company may
make changes in its facilities, equipment,
operations or procedures that could a󰀨ect
the proper functioning of your JK Audio
product. If such changes are planned, you'll
be notied by your telephone company.
FCC Registration

JK Audio
JK Audio, Inc.
1311 E 6th St.
Sandwich, IL 60548
United States
Telephone: [phone]
Toll Free: 1.800.jkaudio
Fax: [phone]
www.jkaudio.com
© 2019 JK Audio, Inc. All rights reserved.
THAT-1™
Telephone Handset Audio Tap
User Guide Version 3/4/19