JK Audio BlueKeeper User manual

JK Audio
User Guide
BlueKeeper™
Wireless Audio Gateway

ii BlueKeeper™ Wireless Audio Gateway
Welcome
Thank You
Thank you for purchasing a JK Audio BlueKeeper Wireless Audio Gateway.
Please read this guide for instructions on setting up and using your new product.
Getting Assistance
If you have technical or application questions,
call us M-F: 8:30am-5:00pm (CT)
In the US & Canada (Toll-Free)
800-552-8346 All other countries: 815-786-2929
Email us at:
[email protected]
Or check out our FAQ section for answers to common questions.
Limited Warranty
The BlueKeeper is covered by a 2 year warranty to be free from defective work-
manship 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
Overview 1
Getting to know your BlueKeeper
2Controls & Indicators
4Inputs & Outputs 2
Getting Connected 6
Bluetooth Wireless Technology 8
FAQs 10
Technical Information 12
Contents iii
Contents

iv BlueKeeper™ Wireless Audio Gateway
HD Voice (Wide-Band Speech)*
Bluetooth Wireless Technology
Send XLR Line Input
Mic/Line Switch
3.5mm Stereo Line Input
3.5mm Mono Line Input
Caller XLR Line Output
3.5mm Stereo Line Output
3.5mm Mono Mic Level Output
3.5 mm Stereo Headphone Jack
Send and Caller Signal Level LEDs
Send and Caller Volume Controls
Universal Power supply with
detachable cord
Features
In the Box
Features
HD Voice
While standard phone calls have a narrow
bandwidth of 300 Hz to 3.4 kHz, HD Voice
calls o󰀨er 50 Hz to 7 kHz bandwidth. The
additional 1.5 octaves on the low end gives
voice a more natural sound, while the
additional upper octave dramatically improves
speech clarity and intelligibility.
Wireless HD Calls
HD Voice is available on many third party
headsets and cell phones. To take advantage
of this extended bandwidth, both phones
on the call must support HD Voice, and
both phones must be on the same carrier,
in coverage areas that support HD Voice.

Overview 1
Introducing the BlueKeeper
JK Audio combines Bluetooth Wireless Technology with professional audio
electronics in a convenient desktop design. BlueKeeper pairs to your cell
phone like a Bluetooth wireless headset. Connect your favorite microphone and
headphones for dramatically improved sound quality at both ends of the call.
BlueKeeper allows you to send mic and line level signals into your wireless
phone while maintaining excellent separation between your voice and the caller.
The stereo output jack provides your voice on one channel and only the caller’s
voice on the other channel. The balanced XLR output jack contains only the
caller’s voice.
The 3.5 mm stereo line input jack allows recordings to be sent into the Bluetooth
device. The 3.5 mm stereo line output jack provides your full bandwidth
send mix on the left channel and Bluetooth caller audio on the right channel.
The headphone output gives you a mix of the XLR input, 3.5 mm input, and
Bluetooth audio.
Ready to go?
The BlueKeeper 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.
Overview

2BlueKeeper™ Wireless Audio Gateway
Getting to Know Your BlueKeeper
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8 9
2
10 11
1. Call/Pair Button
Use this button to control the access Bluetooth functions, answer incoming
calls or redial the last number called.
2. Drop Button
Press this button to drop (hang up) a call.
3. Send 1 Level
Adjusts the signal level that you are sending into the phone call, through the
female XLR input.
4. Send 2 Level
Adjusts the signal level that you are sending into the phone call, 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 33
Getting to Know Your BlueKeeper
Indicators Cont’d
8. Bluetooth LED
Indicates Bluetooth Status (see page 8).
9. Send LEDs
Displays the signal level sent to the caller. The goal is to drive the send
audio at levels high enough to avoid noise, but not so loud as to cause
excessive clipping. Adjust the <Send> level controls so that you rarely
see ashes of the red -3 dB 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.
The <Send 1> volume control will set the level of any audio connected
to the <Send 1> XLR jack on the back of the BlueKeeper. The <Send 2>
control will set the level of the <Send 2> mini jack on the back of the
BlueKeeper. These two inputs will be combined on the LED meter and on
the Left channel of the stereo output mini jack.
10. Power LED
Lit when unit is plugged in and receiving power.
11. Caller LEDs
Displays the signal level coming in from the cell phone, after the DSP.
This signal level will not change when you adjust the <Caller> knob. If
you see the red -3 dB peak Caller LED light more than occassionally,
you should lower the volume on your cell phone to avoid overdriving
and distortion.
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 right 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.

4BlueKeeper™ Wireless Audio Gateway
Getting to Know Your BlueKeeper
Inputs & Outputs
1. Bluetooth Antenna
Do not obstruct.
2. Caller Output
Male balanced XLR output contains only the caller’s voice.
3. Send 1 Input
Female balanced XLR input for signals going out to the cell phone.
Mic or line level input.
4. 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.
5. Send 2 Stereo Input
3.5 mm <Stereo In> mini jack for signals going into the cell phone.
Line level.
3 4 5 6 7 81 2

5
Inputs & Outputs Cont’d
6. Stereo Output
3.5 mm <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 cell
phone.
7. Mono Output
3.5 mm <Mono Out> mini jack contains a mix of <Send 1>, <Send 2>
and <Caller> audio with levels controlled by each of the input control
knobs on the front of the unit. This output is at Mic level and is suitable for
connecting to the Mic input on a computer or other recording device.
8. Power Jack
For connection only to the supplied 9VDC regulated power supply.
Inputs & Outputs 5
Getting to Know Your BlueKeeper

6BlueKeeper™ Wireless Audio Gateway
Getting Connected
Note: There are 2 ways to set up the audio equipment for BlueKeeper.
• If you are only using one mic, please continue to Step 3.
• If you are using a mixer with two or more mics, please skip to Step 6.
Setting up for One Mic/Headphone (No Mixer)
1. Connect a dynamic microphone cable to the <Send 1> jack on the hybrid.
Be sure to set the BlueKeeper <Mic/Line> switch to the <Mic> position.
2. Connect a headphone to the front of the BlueKeeper.
3. Connect a stereo cable from the mini-jack <Stereo Out> on the BlueKeeper
to the <Line In> on your computer sound card or other recording equipment
that has a stereo input. Continue to Step 12.
Setting up for two or more Mics and a Mixer (Mix Minus Caller)
Note: 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 BlueKeeper
will cause an echo, or feedback.
4. Connect the BlueKeeper <Caller> output to any Line input on the mixer.
5. Connect microphone(s) to the mic inputs on your mixer.
6. Connect the mixer’s Mix-Minus bus or Aux Send output (this may be labeled
FX or Mon but any Aux bus will work) to the <Send 1> input on BlueKeeper.
Set the BlueKeeper <Mic/Line> switch to the Line position.
7. If your mixer doesn’t have a mix-minus bus: Whichever input channel
you have the <Caller> connected to, turn the corresponding Aux control to
minimum. All Aux controls for other channels 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 a󰀨ect what is heard on the Main
outputs or on any other Aux buses.
Tip: Using anAux Send bus that is Pre-Fader allows you to control the levels of each
channel to the main output without a󰀨ecting what is sent to the phone call.
Recording
Device
Set to <Mic>
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1
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10