JK Audio that-2 User manual

JK Audio
THAT-2™
Telephone Handset Audio Tap
User Guide

ii THAT-2 Telephone Handset Audio Tap
Welcome
Thank You
Thank you for purchasing the
JK Audio THAT-2™. Please read this
guide for instructions on using it.
Getting Assistance
If you have technical or application
questions:
In the US & Canada, call us toll free
at: 800-552-8346
All other countries dial: 815-786-2929
(M-F 8:30-5:00pm Central Time Zone)
Email us at: [email protected]
Or, check out our FAQ section for
answers to common questions.
Limited Warranty
THAT-2 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-2 was designed to be very rugged and durable, it is not waterproof and
care should be taken to keep the unit dry.

iv THAT-2 Telephone Handset Audio Tap
Works with Analog, Digital, PBX, and ISDN Telephones
RCA Input & Output
XLR Input & Output
Input Level Control
Output Level Control
Switch Selects Between Carbon, Dynamic or Electret Handset Types
Passive Design. No Battery or AC Required
Features

Overview 1
Introducing THAT-2
Connect THAT-2 between your
telephone and handset for quick
access to audio in and out of the
telephone. The THAT-2 is used by
radio stations to record and play
sound bites, and by TV and lm sound
crews to get IFB dialog over phone
lines.
Record (Line Output)
There are two output jacks on THAT-2.
Both the white RCA phono jack on
the front, and the male XLR jack carry
the same signal. These mic level
output jacks provide a mix of both
sides of the conversation. In other
words, whatever you send down the
phone line will come back on these
jacks mixed with the audio from the
other side of the call. This mix ratio is
not adjustable, it is a function of the
telephone, not our product. As it turns
out, this is a suitable mix ratio for most
applications.
Play (Line Input)
There are two input jacks on THAT-2.
You can use either the red RCA
phono jack on the front or the female
XLR jack on the back. These are line
level inputs for signals that you want
to send down the phone line. These
jacks can be connected to an audio
output such as the headphone output
jack on a tape recorder, the line output
of a PC audio card, or the line output
from a CD player or audio mixer.
Overview

2THAT-2 Telephone Handset Audio Tap
Overview
Top View

Setup 3
Setup
Getting Connected
THAT-2 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
Telephone jack of THAT-2 to the handset jack on your telephone base.
3. Plug your handset cord, and handset, into the Handset jack on THAT-2.
4. Connect your audio equipment to the line input and output jacks on THAT-2.
Note: Not for use with telephones that have a keypad in the handset.

4THAT-2 Telephone Handset Audio Tap
Handset Type Switch
The three position switch on the
front of THAT-2 selects the type of
microphone that is in the handset
of your telephone. When you push
the Line In button in, THAT-2
replaces the handset microphone
signal with a circuit that must match
the characteristics of the handset
microphone.
Operation
The Handset Type switch can cover
the main three microphone types, but
keep in mind that there is no industry
standard for microphone types or
characteristics and therefore we
cannot guarantee a perfect match
with every telephone. There is no
way to tell which type of mic is in
your telephone handset. Simply use
the position that sounds best without
clipping or signal break-up. The
balanced input XLR is wired:
A B C
Electret Dynamic Carbon
Note: Not all telephones are built alike so we cannot guarantee THAT-2 will work
with every handset design available. We designed the interface to work with most
popular designs.

Operation 5
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.
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.
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 off 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.
We designed this interface to work
with most popular telephone designs.
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. If this does not help,
discontinue use immediately.

6RemoteAmp Headphone Amplier
How do I use a microphone
with the THAT-2?
THAT-2 needs a Line level signal to
send audio down the phone line. You
will either have to use a microphone
pre-amplier or a mic mixer.
When I try to send audio down
the line it won’t work.
Firstly, you must send a line level
signal into the Line Input jack on
THAT-2. Secondly, make sure the
gray button is in the In position. This
disables the handset mic and enables
the audio input. Thirdly, check the
Handset Type ABC switch.
FAQs
Every time I press in the gray
button I get a loud squeal and
feedback. How do I x this?
Try changing the setting of the
Handset Type ABC switch. If the
handset type is not set correctly
you could get the feedback you are
describing. Trial and error works best
to nd the right handset type but this
info also may help.
A B C
Electret Dynamic Carbon

FAQs 7
What is the gray pushbutton
on THAT-2 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 XLR/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
XLR/RCA From Phone output jack at
all times.
I have everything connected
correctly. Why can’t the caller
hear me?
You cannot use the speakerphone
function on your telephone during your
recording. THAT-2 accesses the audio
through the handset cord. With the
speakerphone turned on, there is no
audio going through the handset.
We're using THAT-2 to get
caller audio to broadcast on
our call in radio show. How do
we get better sound quality?
THAT-2 was designed for only record
and play applications. For better
sound quality you should consider
getting an Innkeeper digital hybrid.
FAQs

THAT-2 Telephone Handset Audio Tap
Isolation
Transformer
XLR
Output
RCA
Output
Handset Jack
from Handset
Handset Jack
to Phone
XLR
Input
RCA
Input Input
Level
Handset Mic Type Switch
Isolation Transformer
Signal Limiter
Output
Level
Block Diagram
8

Technical Information 9
Line Input
RCA (Unbalanced): 600-9000 ohms /
250 mV RMS (+12 dBu nom)
Female XLR (Balanced): 600-9000 ohms /
250 mV RMS (+12 dBu nom)
Output
RCA (Unbalanced): 0-2500 ohms
100 mV RMS (-18 dBu nom)
Male XLR (Balanced): 0-2500 ohms
100 mV RMS (-18 dBu nom)
Misc.
Handset Jack: RJ-22
Handset Type: Electret, Dynamic, Carbon
Size: 4.5" x 3.2" x 1.3" (11.4 x 8.2 x 3.3 cm)
Weight: 9 oz
Specications
Technical Information

10 THAT-2 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, and,
c. The ringer equivalence number (REN)
for this equipment. The REN is used to
determine the quantity of devices which
will be connected to the telephone line.
Excessive RENs on the telephone line
may result in the devices not ringing in
response to an incoming call. In most,
but not all areas, the sum of the RENs
should not exceed 5.0. To be certain
of the number of devices that may be
connected to the line, as determined
by the total RENs, contact the local
telephone company.
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 affect
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
© 2016 JK Audio, Inc. All rights reserved.
THAT-2™
Telephone Handset Audio Tap
User Guide Version 5/25/16