JK Audio Broadcast Host User manual

JK Audio
User Guide
Broadcast Host™
Analog Desktop Digital Hybrid

ii Broadcast Host™ Analog Desktop Digital Hybrid
Thank You
Thank you for purchasing a JK Audio Broadcast Host Analog Desktop Digital
Hybrid. Please read this guide for instructions on setting up and using your
new product.
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
The Broadcast Host 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.
Warnings & Safety Precautions
• Read and keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Clean only with a soft dry cloth.
• Do not install near any heat sources such as radiators, heat registers, stoves,
or other apparatus (including ampliers) that produce heat.
• Do not defeat the safety purpose of the three-prong grounding type plug.
If the provided plug does not t into your outlet, consult an electrician for
replacement of the obsolete outlet.
• Do not use this unit if the electrical power cord is frayed or broken. The power
cord should be routed so that it is not likely to be walked on or pinched by
items placed upon or against it.
• To reduce the risk of re or electric shock, do not expose this apparatus to rain
or moisture.
• Refer all servicing to qualied service personnel.
Welcome

Contents
Overview 1
Getting to know your BlueKeeper
2Controls & Indicators
4Inputs & Outputs
2
Getting Connected 6
Operation 8
Conguration 9
FAQs 10
Technical Information 12
Contents iii
Contents

iv Broadcast Host™ Analog Desktop Digital Hybrid
16 bit DSP Technology
Auto-Answer (Switchable On/Off)
Proprietary Auto Null Algorithm
(50 dB null)
Send XLR Line Input
Mic/Line Switch
3.5mm Mono Line Input
Caller XLR Line Output
3.5mm Stereo Line Output
3.5mm Stereo Headphone Jack
Send and Caller Signal Level LEDs
Send and Caller Volume Controls
Guest Module Remote Jack
Universal Power supply with
detachable cord
60” RJ11 Phone Cord
Features
In the Box
Features

Overview 1
Introducing the Broadcast Host™
Broadcast Host will allow you to send and receive audio over analog telephone
lines. While this may seem like a simple task that any telephone can do, the
challenge is getting the best quality audio from such a limited audio path.
What is a Digital Hybrid?
The Broadcast Host digital hybrid connects audio signals to a standard analog
telephone line without the variations in quality found with analog hybrids. The
main function of a hybrid is to bring in the caller’s voice from the phone line as
clear and clean as possible. In the real world, when you send your voice down
the telephone line it has a tendency to bleed over into the caller’s audio. The
hybrid must adapt to the phone line in order to properly separate transmit and
receive audio. We use a 16 bit DSP (Digital Signal Processor) to continuously
monitor the phone line and local audio signals to deliver excellent trans-hybrid
loss, also known as separation. Our dual-convergence algorithm can achieve
excellent separation, typically exceeding 50 dB.
Ready to go?
The Broadcast Host controls and connectors are clearly marked and ready for
operation. If this is your rst exposure to a hybrid, we suggest that you read the
entire manual to allow you to take advantage of all these features.
Any Questions?
Before you pick up the phone... Please thumb through the rest of this manual.
You might nd those deep technical questions are covered on later pages.
Overview

2Broadcast Host™ Analog Desktop Digital Hybrid
Getting to Know Your Broadcast Host
3 4 5 6 71
8 9
2
10 11
1. Call Button
Press this button to answer an incoming call or to connect your call through
the hybrid if you have used an auxiliary phone to set up the call.
2. Drop Button
Press this button to drop (hang up) a call.
3. Send 1 Level
Adjusts the signal level that you are sending down the telephone line,
through the female XLR input.
4. Send 2 Level
Adjusts the signal level that you are sending down the telephone line,
through the 3.5mm mini jack input.
5. Caller Level
Adjusts the level of the incoming caller’s audio as it is going out the output
jacks.
6. Headphone Level
Adjusts the signal level coming from the 3.5mm front panel headphone jack.
7. Headphones
The 3.5mm stereo headphone jack contains a mix of both the Send input
audio and the Caller audio.
Controls & Indicators

Controls & Indicators 3
Getting to Know Your Broadcast Host
Indicators Cont’d
8. OH LED
Lit when you are on line with a call (Off-Hook).
9. Send LEDs
Displays the signal level going to the phone line. The goal is to drive the
phone line audio at levels high enough to avoid phone line noise, but not
so loud as to cause excessive clipping. Adjust the Send level control so
that you rarely see ashes of the red -3dB peak Send LED. These ashes
should occur only during loud speech bursts. If the red LED stays lit for
extended periods you can assume that much of your speech is being
clipped or distorted. In this case you should lower the Send volume
control for the input that is causing the clipping.
10. Power LED
Lit when unit is plugged in and receiving power.
11. Caller LEDs
Displays the signal level coming in from the phone line, after the DSP.
This signal level will not change when you adjust the <Caller> knob.
The <Caller> level control knob does not change what you see on these
LEDs. Adjust the <Caller> level control to give you the best signal level
at the <Caller> XLR output or the Caller channel of the stereo output
mini jack.
You can listen to the combined audio level in your headphones. After
setting the Send levels for the highest level you can send without
distortion as indicated by the LED meter, listen to the audio in your
headphones and set the <Caller> level to match the Send level. Or if your
recording device has a meter, you can use that to match the <Caller>
level to the Send level.

4Broadcast Host™ Analog Desktop Digital Hybrid
Getting to Know Your Broadcast Host
Inputs & Outputs
1. Line Jack
Connect to a standard, single line, analog telephone line.
2. Phone Jack
Connect a single line analog telephone for call setup, dialing, or call
screening. (Optional).
3. Auto-Answer
This switch enables Broadcast Host to automatically answer an incoming
call and then disconnect after the caller hangs up. Auto answer will occur on
the rst ring.
4. Caller Output
Male balanced XLR line-level output contains only the caller’s voice.
5. Send 1 Input
Female balanced XLR input for signals going out to the phone line. Mic or
line level input.
6. Mic / Line switch
Sets the front end sensitivity of the Send 1 XLR jack. Set to <Mic> if you
intend to connect a dynamic microphone directly to the Send 1 jack. Set to
<Line> if you are connecting to the output of a mic mixer.
3 4 5 6 1097 81 2

Inputs & Outputs Cont’d
7. Send 2 Mono Input
3.5mm <Mono In> mini jack for signals going into the phone line.
Line level.
8. Stereo Output
3.5mm <Stereo Out> mini jack contains both Send and Caller audio
channels with levels determined by the <Send 1> and <Send 2> level
controls and the <Caller> level control. Left channel contains your
local Send audio and right channel contains the Caller’s audio from the
telephone line.
9. Remote Control Jack
8 pin modular RJ-45 jack for connection to the optional JK Audio Guest
Module 1 Remote Keypad or your broadcast console switch contacts. Do
not connect this jack to your computer network port.
10. Power Jack
For connection only to the supplied 9VDC regulated power supply.
Inputs & Outputs 5
Getting to Know Your Broadcast Host

6Broadcast Host™ Analog Desktop Digital Hybrid
Setting Up
1. Connect the supplied RJ-11 phone line cable between the jack marked
<Line> and your wall jack. Be sure this jack supports standard single line
analog telephone operation.
2. Connect a pair of headphones to the front of the Broadcast Host or mixer.
3. There are 2 ways to set up the audio equipment for your Broadcast Host:
A. One Mic/Headphone (No Mixer): See Figure 6a.
1. Connect a dynamic microphone cable to the <Send 1> jack on the
Broadcast Host. Be sure to set the Broadcast Host <Mic/Line>
switch to the <Mic> position.
2. Connect a stereo cable from the mini-jack Stereo Out on the
Broadcast Host to the <Line In> on your computer sound card or
other recording equipment that has a stereo input.
B. Two or more Inputs/Outputs (Mix-Minus Caller): See Figure 7a.
A mix-minus signal is an audio signal that contains a mix of your local
microphones plus any other audio, minus the Caller’s own voice.
Sending the Caller’s audio back to the Broadcast Host will cause an
echo, or feedback.
1. Connect <Caller> to any Line Level input on mixer.
2. Connect Aux (or FX) Send on mixer to <Send 1> on
Broadcast Host. Set the Broadcast Host <Mic/Line> switch
to the <Line> position.
4. Connect the supplied DC power supply to the back of the Broadcast Host
and then to an AC power outlet.
Your Broadcast Host is now ready to take calls. You may want to connect an
auxiliary telephone to the Broadcast Host <Phone> jack so you can dial out and
set up calls, or use the <Auto-Answer> feature to answer incoming calls.
Place a test call to a quiet location. Set the <Send> level control so that while
you are speaking into the microphone, the Send LEDs on the hybrid light the -20
dB green LED consistently and ash the -9 dB green LED. If you ash the -3 dB
red LED, lower the level. Set the <Caller> control for good recording level of the
caller audio at the output jack.
Getting Connected
GUEST MODULE 1
Figure 6a

7
Getting Connected
GUEST MODULE 1
Figure 7a
MIC
1 2 3/4 5/6 7/8
MIC MIC MIC
L L
R R
TAPE
IN
UNBALANCED
MAIN
METERS
USB
INPUT LEVEL L R
TAPE
OUT
INSERT
LINE IN 1 LINE IN 2
BAL/
UNBAL
BAL/
UNBAL
MONO MONO MONO MONO
POWER
BAL/
UNBAL
BAL/
UNBAL
HI
MID
LOW
BAL/
UNBAL
BAL/
UNBAL
BAL/
UNBAL
BAL/
UNBAL
LINE IN 3
LINE IN 4
LINE IN 5
LINE IN 6
LINE IN 7
LINE IN 8INSERT ST RETURN
GAIN
EQEQEQEQ
AUX
PAN
MUTE MUTE MUTEMUTE MUTE MUTE
PAN PAN PAN PAN
FX MASTERFX TO MON PHONES TAPELEVEL
AUX AUX AUX AUX
EQ
GAINGAINGAINGAIN
FX SEND
MON SEND FOOTSWITCH
MAIN OUT PHONES
PHANTOM
POWER
STEREO GRAPHIC EQ
15
10
5
0
5
10
15
125 250 500 1K 2K 4K 8K
15
10
5
0
5
10
15
48V
M
I
C
G
A
I
N
M
I
C
G
A
I
N
M
I
C
G
A
I
N
M
I
C
G
A
I
N
U
LOW CUT LOW CUT LOW CUTLOW CUT
OL
15
10
6
3
0
2
4
7
10
30
20
HI
MID
LOW
HI
MID
LOW
HI
MID
LOW
HI
MID
LOW
MON
FX FX FX FX FX
MUTE
PRESETS
MON MON MON MON
U
U U U
MON MAIN
1 2 3/4 5/6 7/8 ST RTN FX RTN
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
00
U
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
UUUU
UUUUU
U
UUUUU
UUUUU
UUUU
U
RL
U
RL
U
RL
U
RL
U
RL
MIC
1 2 3/4 5/6 7/8
MIC MIC MIC
L L
R R
TAPE
IN
UNBALANCED
MAIN
METERS
USB
INPUT LEVEL L R
TAPE
OUT
INSERT
LINE IN 1 LINE IN 2
BAL/
UNBAL
BAL/
UNBAL
MONO MONO MONO MONO
POWER
BAL/
UNBAL
BAL/
UNBAL
HI
MID
LOW
BAL/
UNBAL
BAL/
UNBAL
BAL/
UNBAL
BAL/
UNBAL
LINE IN 3
LINE IN 4
LINE IN 5
LINE IN 6
LINE IN 7
LINE IN 8INSERT ST RETURN
GAIN
EQEQEQEQ
AUX
PAN
MUTE MUTE MUTEMUTE MUTE MUTE
PAN PAN PAN PAN
FX MASTERFX TO MON PHONES TAPELEVEL
AUX AUX AUX AUX
EQ
GAINGAINGAINGAIN
FX SEND
MON SEND FOOTSWITCH
MAIN OUT PHONES
PHANTOM
POWER
STEREO GRAPHIC EQ
15
10
5
0
5
10
15
125 250 500 1K 2K 4K 8K
15
10
5
0
5
10
15
48V
M
I
C
G
A
I
N
M
I
C
G
A
I
N
M
I
C
G
A
I
N
M
I
C
G
A
I
N
U
LOW CUT LOW CUT LOW CUTLOW CUT
OL
15
10
6
3
0
2
4
7
10
30
20
HI
MID
LOW
HI
MID
LOW
HI
MID
LOW
HI
MID
LOW
MON
FX FX FX FX FX
MUTE
PRESETS
MON MON MON MON
U
U
U U
MON MAIN
1 2 3/4 5/6 7/8 ST RTN FX RTN
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
00
U
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
UUUU
UUUUU
U
UUUUU
UUUUU
UUUU
U
RL
U
RL
U
RL
U
RL
U
RL
MIC
1 2 3/4 5/6 7/8
MIC MIC MIC
L L
R R
TAPE
IN
UNBALANCED
MAIN
METERS
USB
INPUT LEVEL L R
TAPE
OUT
INSERT
LINE IN 1 LINE IN 2
BAL/
UNBAL
BAL/
UNBAL
MONO MONO MONO MONO
POWER
BAL/
UNBAL
BAL/
UNBAL
HI
MID
LOW
BAL/
UNBAL
BAL/
UNBAL
BAL/
UNBAL
BAL/
UNBAL
LINE IN 3
LINE IN 4
LINE IN 5
LINE IN 6
LINE IN 7
LINE IN 8INSERT ST RETURN
GAIN
EQEQEQEQ
AUX
PAN
MUTE MUTE MUTEMUTE MUTE MUTE
PAN PAN PAN PAN
FX MASTERFX TO MON PHONES TAPELEVEL
AUX AUX AUX AUX
EQ
GAINGAINGAINGAIN
FX SEND
MON SEND FOOTSWITCH
MAIN OUT PHONES
PHANTOM
POWER
STEREO GRAPHIC EQ
15
10
5
0
5
10
15
125 250 500 1K 2K 4K 8K
15
10
5
0
5
10
15
48V
M
I
C
G
A
I
N
M
I
C
G
A
I
N
M
I
C
G
A
I
N
M
I
C
G
A
I
N
U
LOW CUT LOW CUT LOW CUTLOW CUT
OL
15
10
6
3
0
2
4
7
10
30
20
HI
MID
LOW
HI
MID
LOW
HI
MID
LOW
HI
MID
LOW
MON
FX FX FX FX FX
MUTE
PRESETS
MON MON MON MON
U
U
U U
MON MAIN
1 2 3/4 5/6 7/8 ST RTN FX RTN
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
10
dB
10
20
30
5
5
U
00
U
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
UUUU
UUUUU
U
UUUUU
UUUUU
UUUU
U
RL
U
RL
U
RL
U
RL
U
RL
Mix-Minus Caller
For whichever input channel you have the <Caller> connected to, turn the
corresponding <Aux> control to minimum. All other <Aux> controls should be set
for audio sent to the phone line. Each <Aux Send> bus is completely separate
from all other outputs, so these Aux controls will not affect what is heard on the
Main outputs or on any other Aux buses. We recommend using an <Aux Send>
bus that is pre-fader, so you can use the fader controls to set the levels of each
channel to the main output without affecting what is sent to the phone line. If
your mixer does not have an <Aux Send> bus, you can use <Pan> controls with
the Left and Right outputs. Pan all the microphones, etc. to the Left output and
pan the Caller to the Right output. Then connect only the <Left> output to the
Broadcast Host <Send 1>. Or, you may use an external Mix-Minus box that will
create this signal for you.

8Broadcast Host™ Analog Desktop Digital Hybrid
Auxiliary Telephone
An auxiliary telephone provides you with an easy way to dial out or set up your
calls. Broadcast Host will disconnect the auxiliary telephone when you press the
<Call> button. If you need to take the call back on the aux telephone, simply pick
up the telephone handset before the Broadcast Host’s <Drop> button is pressed.
To use an auxiliary phone equipped with a “Hold” feature to place or screen a
call, rst set up the call and place the call on hold. When you are ready to take
the call on Broadcast Host, press the <Call> button on the Broadcast Host and
your telephone will automatically release the hold.
Your phone will operate as a normal telephone anytime you are in Drop mode.
Leaving the hybrid connected between the wall jack and your telephone will not
affect normal use of your phone. Audio will only pass through the hybrid when
you press the <Call> button.
Optional Jumper Settings
If the incoming Caller level is too high and peaking the red -3 dB LED, you may
need to change the setting of an internal jumper. Disconnect power from the
hybrid and remove the cover of the Broadcast Host to locate Jumper 1. The
default position for this jumper is closed (covering both pins). Changing the
jumper to the open position (either remove the jumper or cover just one pin) will
provide 6 dB attenuation of the incoming audio signal.
Auto-Answer
The <Auto-Answer> feature will answer on the rst ring. When <Auto- Answer>
is enabled, you can still make calls manually using the <Call> button.
When nished, you can either drop the call manually or allow the call to
Auto-Disconnect. Broadcast Host will look for a CPC disconnect signal from the
phone company to determine when a call has disconnected. This can take up to
a minute.
Operation

Remote Control Jack
The RJ-45 jack on the back of the Broadcast Host provides connection to an
optional JK Audio Guest Module 1 remote control, or it can be wired to the switch
contacts on your broadcast console. Do not connect this jack to the network port
on your computer.
RJ-45 Pinout:
1: Ground
2: Call / Drop Control (main control pin)
3: Ring / OH LED
4: DTMF Input
5: +4.3 VDC
6: Reserved
7: Reserved
8: Reserved
To take Broadcast Host off-hook, momentarily connect pin 2 to pin 5 (power)
through a 100 ohm ¼ watt resistor.
To release (Drop) the phone line, momentarily connect pin 2 to pin 1 (ground)
through a 100 ohm 1/4 watt resistor.
Pin 3 contains a 4.3 VDC, 40 mA current limited output to drive a signal LED. We
suggest adding a 200 ohm ¼ watt resistor in series with an LED connected to
ground.
Pin 5 supply output is current limited to 100 mA with a resettable fuse for use
with the Guest Module and pin 2 connections. Do not attempt to power additional
circuitry from this pin.
Guest Module 1 (Optional)
This convenient device gives you remote access to the on-hook/offhook and
dial features of the innkeeper 1x. The <Call> button will icker when a call
comes in and will stay lit while a call is present. When you dial out using the
Guest Module 1 keypad, the tones are sent directly down the phone line, and do
not come back blasting in your ear. Product sold separately.
Guest Module 1 Features:
• Ring and Call LED
• Call and Drop Buttons
• DTMF Keypad
• Keypad Disable Switch
• Remote Powered
9
Remote Control
Remote Control

10 Broadcast Host™ Analog Desktop Digital Hybrid
1. Will the digital hybrid provide phantom power for a
condenser mic?
No, this device will not provide phantom power. If you connect a microphone
directly to the Broadcast Host, you should use a dynamic mic.
2. What happens if someone takes a second phone off-hook
when the Broadcast Host is on a call?
Broadcast Host will treat the other local voice the same as the caller. It will
attempt to keep transmit audio from returning back with the caller’s audio, but
this becomes more difcult with this scenario. The local voice will certainly
sound much louder than the distant caller’s voice.
3. Why is there a Send 2 mini-jack on the back of my
Broadcast Host?
This is a second line level input to the Broadcast Host. Here you can connect
another device, such as a CD player, the Line Out from your computer
or even the output of your personal audio player, to add audio to the
conversation. This enables you to play background music or other sound
bites during your discussion. Do not connect a microphone to this jack. This
is a mono input. If you connect a stereo output here, such as a computer line
out, you will only receive Left channel audio.
4. How do I record onto my computer and edit the les?
You will need to purchase or download any audio editing software of your
choice. You may also need to edit the audio conguration les on your
computer or in your software to allow recording in stereo. Broadcast Host just
enables you to access the audio from your phone line.
5. Why does my laptop only record half of the conversation? I
am using the Stereo output on the Broadcast Host and I have
a stereo cable.
Most laptop computers only have a mic input, which is mono. You will need to
either get a sound card with a stereo line level input for your laptop or use a
USB or FireWire interface product.
6. There is a loud hum on the output of my Broadcast Host,
even when nothing else is connected. What else could it be?
Make certain you are using the regulated power supply that was shipped with
this unit. Power supplies are not all the same.
FAQs

FAQs 11
7. I need to be able to use my Broadcast Host at an ofce
building but they only have a multi-line PBX phone system. Is
there some way I can still connect this device?
Talk to their phone specialist and ask for a standard analog line. Any line that
can be used for a fax machine or modem should work ne. The auto answer
or auto disconnect features may not work the same however. That depends
on how the PBX system is congured. If this is where you will typically be
working with the hybrid, you might consider our innkeeper PBX instead.
8. Can I still use my phone to take regular calls or do I have to
disconnect the Broadcast Host when I am not using it?
You can leave the Broadcast Host in place and your telephone will continue
to operate normally. Audio will only pass through the hybrid when you press
the <Call> button.
FAQs

12 Broadcast Host™ Analog Desktop Digital Hybrid
Block Diagram
Technical Information
Phone Line Jack Aux Phone Jack
Caller Out
Monitor
level
Headphone
Stereo Output R = Caller L= Send
Caller
Send 1 Level
Send 2 Level
Mic / Line Send Input
Digital
Hybrid
Line level Send 2 Input

Input Impedance / Level
Balanced Female XLR: 1k ohms / 15 mV RMS; -34 dBu nom.;
Mic/Line Pad Switch = +6 dBu max
1/8” (3.5mm) Stereo Line: 20k ohms / 250 mV RMS; -10 dBu nom.
Output
Balanced Male XLR: 200 ohms / 500 mV RMS; -4 dBu nom.;
+14 dBu max; Caller Only
1/8” (3.5mm) Stereo: 50 ohms / 250 mV RMS; +6 dBu max
Left = Send; Right = Caller
Headphone 1/8” Stereo: 8 ohms / 250 mW
Mixed Send and Caller
Phone Line Connector: RJ11C
Ringer: 0.8B REN
Isolation: 1500 VAC
Frequency Response: Telephone Side 200 Hz-3600 Hz
Power: 120-240 VAC Power Supply
Size: 7” x 6” x 1.6” (18 x 15 x 4.2 cm)
Weight: 2.2 lbs. (1kg)
Specications
Block Diagram 13
Technical Information
Manufacturer’s Name:
Manufacturer’s
Address:
JK Audio, Inc.
1311 E 6th Street
Sandwich, Illinois 60548 USA
Declares that the product:
Product Name:
Model Numbers:
Broadcast Host Digital Hybrid
Broadcast Host
Conforms to the following Product Specications:
Safety:
ESD:
Emissions:
Telecom:
AS/NZS 60950.1:2003
CAN/CSA-C22.2 No. 60950-01-03
UL Standard 60950-01 1st edition
EN 55024:1998; EN 61000-3-2; EN 61000-3-3
EN 55022:1998
AS/NZS CISPR 22 (2002)
FCC Part 15, Subpart B
ICES-003
AS/ACIF S002:2005
FCC CFR 47, Part 68
TIA968 A-1, A-2, A-3, A-4
Declaration of Conformity

14 Broadcast Host™ Analog Desktop Digital Hybrid
Declaration of Conformity Cont’d
FCC Registration
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 beconnected to the line, as determined by the total RENs, contact the
local telephone company.
FCC Registration
The product herewith complies with the requirements of the following Directives and
carries the CE marking accordingly:
LVD 2006/95/EC (Safety)
R&TTE 1999/5/EC (Telecom)
EMC 89/336/EEC (EMC)
RoHS Directive 2002/95/EC
The Technical File containing supporting documentation is maintained at:
JK Audio, Inc (Corporate Headquarters)
Compliance Manager
1311 E 6th Street
Sandwich, Illinois 60548 USA
815-786-2929 phone
815-786-8502 fax

FCC Compliance Notice 15
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 Part 15 Subpart A Compliance
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference
in which case the user will be required to correct the interference at his/her own
expense.
Changes or modications not expressly approved by JK Audio can void the user’s
authority to operate the equipment.
FCC Compliance Notice

JK Audio, Inc.
1311 E 6th St.
Sandwich, IL 60548
United States
Telephone: [phone]
Toll Free: 1.800.jkaudio
Fax: [phone]
www.jkaudio.com
© 2015 JK Audio, Inc. All rights reserved.
Broadcast Host™
Broadcast Field Mixer
User Guide Version 8/11/15
JK Audio