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300LT SYSTEM
User’s Guide
300UPR • 30BT
ON-CAMERA
UHF WIRELESS MICROPHONE SYSTEM
Azden Corporation, 147 New Hyde Park Road, P.O. Box 10, Franklin Square, NY 11010
vox - 516.328.7500 • fax - 516.328.7506 • email - azdenus@azdencorp.com
© 2006 Azden Corporation
P1060-01
Printed in USA
Specifications
Due to constant improvements, specifications are subject to change without notice.
300UPR Receiver
Frequency Range UHF 240-Channel Selectable (794.000 – 805.950MHz)
Type of Reception Antenna Diversity Receiver
Oscillator PLL Synthesized
RF Squelch Level 15dBµ
Frequency Response 50Hz – 15kHz
S/N Ratio >70dB “A” Weighted
A
udio Distortion <1% @ 1kHz
Operating Temp. 0°C – 45°C (32°F – 113°F)
MIC Out -64dBm @ 600 Ω - 3.5mm Mini-Jack (unbalanced)
-58dBm @ 600 Ω - 3.5mm Mini-Jack (balanced)
Power Requirement 2 – 1.5V “AA” Alkaline Batteries - 6 – 8 Hours
Dimensions 63W x 98H x 28.5D mm (2.48W x 3.86H x 1.12D inches)
Weight Approx. 180g Including Battery (6.35oz)
30BT Transmitter
Frequency Range UHF 240-Channel Selectable (794.000 – 805.950MH)
Oscillator PLL Synthesized
RF Power 10mW (30mW Max.)
Frequency Response 50Hz – 15kHz
Max. Deviation ±40kHz @ 1kHz Modulation
S/N Ratio >70dB “A” Weighted
A
udio Distortion <1% @ 1kHz
MIC Sensitivity ±5kHz @ -60dBm MIC Input (0dBm=+0.775V) - 3.5mm Mini-Jack
Operating Temp. 0°C – 45°C (32°F – 113°F)
Power Requirement 2 – 1.5V Alkaline “AA” Batteries - 8 – 10 Hours
Dimensions 63W x 98H x 28.5D mm (2.48W x 3.86H x 1.12D inches)
Weight Approx. 170g Including Battery (6oz)
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Important information
Licensing of this, or any Azden wireless equipment is the user’s responsibility. The ability to receive a license
depends largely on the user’s classification, application and frequency. Contact the appropriate agency (FCC in
the US) for further information.
These devices comply with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) These devices may not cause harmful interference, and (2) These devices must accept any interference
received, including interference that may cause undesired operation.
NOTE: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user's authority to operate the equipment.
These devices and their antenna(s) must not be co-located or operated in conjunction with any other antenna
or transmitter.
sound through the receiver’s phone output. If the sound
is distorted lower the mic input level on the transmitter. If
there is not enough volume raise the mic input level on
the transmitter.
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Thank you for purchasing Azden’s 300LT wireless
system, which consist of the 300UPR receiver, 30BT
transmitter and EX-503L lapel microphone. This
equipment is designed primarily for video cameras but is
usable with most electronic components having a
microphone level input.
RECEIVER (300UPR)
(1) Remove the battery compartment lid by sliding it
down.
(2) Insert two fresh alkaline “AA” batteries into the
compartment. Make sure the battery polarity is correct
as marked inside the battery compartment.
In addition to the battery, inside the battery compartment
you will find:
(3) Phone level output adjustment: Using the supplied
tool, turn the dial clockwise to increase earphone output
level. Turn the dial counterclockwise to decrease
earphone output level.
(4) Power
Switches the Receiver “On” or “Off”.
(5) Mic Output Jack
The 300UPR is supplied with two cables.
For mini jack microphone inputs: Use the supplied minito-mini cable. Plug the end of the cable with one black
band into the receiver. Plug the end of the cable with the
two black bands into the microphone input of the video
camera.
For 3-pin XLR microphone inputs: Use the supplied mini
to XLR cable. Plug the mini end of the cable into the
desired channel, numbered from 1 to 240. Once the
desired channel number has been selected on the
transmitter, set the receiver to the same channel number.
Operating the system
Because this is a frequency agile system, the receiver
and transmitter must be on the same channel number.
To change the channel number, use the tip of the
provided tool and press the UP or DOWN button to the
desired channel. Make sure both the receiver and
transmitter are on the same channel.
300UPR Receiver
After installing new batteries, mount the receiver to your
video camera with the supplied shoe mount or hook &
loop fastener. Select one of the supplied cables and
connect the output cable to the receiver and to the
microphone input on the video camera. Switch the
300UPR to “ON” and the battery level indicator should
come on. If it does not, check the battery. Plug an
earphone into the phone jack to monitor sound. Adjust
the phone volume as necessary. When the 300UPR
receives a signal from the transmitter the reception level
indicator will come on. If it does not make sure both the
receiver and transmitter are on the same channel.
30BT Transmitter
Plug in the supplied lapel microphone and clip it to your
subject. The microphone should be placed 4-12 inches
from your subject’s mouth. Clip the transmitter to a belt
using the supplied belt-clip (10) or place it in a pocket.
Switch the 30BT to “ON” and the battery level indicator
should come on. If it does not, check the battery. Have
someone speak into the microphone as you monitor the
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receiver. Plug the XLR end of the cable into the
microphone input of the video camera.
(6) LCD Display
This display shows the following information.
Channels: Numbered from 1 to 240
Battery Condition: Using a 3 step indicator. (1 Low to 3
High)
Reception Level: Using a 4 step indicator. (1 Low to 4
High)
To change the channel number: Use the tip of the tool
provided and press the UP or DOWN button to the
desired channel, numbered from 1 to 240. Once the
desired channel number has been selected on the
receiver, set the transmitter to the same channel number.
(7) Phone Jack
Plug an earphone into this jack to monitor the sound.
You can use mono or stereo headphones.
(8) Shoe Stand
Attach the 300UPR to the shoe mount of the video
camera, by sliding it into place. Turn the thumbwheel
clockwise to tighten. Reverse this procedure to remove
the 300UPR from the camera.
BODYPACK TRANSMITTER (30BT)
(1) Remove the battery compartment lid by sliding it
down.
(2) Insert two fresh alkaline “AA” batteries into the
compartment. Make sure the battery polarity is correct
as marked inside the battery compartment.
In addition to the battery, inside the battery compartment
you will find:
(3) Mic Input Level Control
The Mic Input Level control enables you to adjust the
input level of the microphone. Using the supplied tool,
turn the dial clockwise to increase, or counterclockwise
to decrease the input level.
(4) Power
Switches the Transmitter “On” or “Off”.
(5) Mic Input Jack
Plug the supplied EX-503L microphone into the Mic Input
Jack and tighten the collar until snug. (DO NOT
OVERTIGHTEN) In addition other lapel and/or headset
microphones with 3.5mm mini plugs can also be used
with the 30BT.
(6) LCD Display
This display shows the following information.
Channels: Numbered from 1 to 240
Battery Condition: Using a 3 step indicator. (1 Low to 3
High)
To change the channel number: Use the tip of the tool
provided and press the UP or DOWN button to the
(9) Antennas
For best reception the antennas should be pointed in an
upward fashion. Use caution, and do not force them into
this position.
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