Azden Body-pack Transmitter 35BT User manual

325SYSTEM
User’sGuide
325UPR • 35BT • 35HT • 35XT
DUAL-CHANNELON-CAMERA
UHFWIRELESSMICROPHONESYSTEM
Azden Corporation, 147 New Hyde Park Road, P.O. Box 10, Franklin Square, NY 11010
tel - 516.328.7500 • fax - 516.328.7506 • email - [email protected]
© 2008 Azden Corporation P1070-03
Printed in USA
Specifications
Duetoconstantimprovements,specificationsaresubjecttochangewithoutnotice.
325UPR Receiver
Frequency Range UHF 188 Selectable Frequencies (566.125-589.875MHz)
Type of Reception Dual-channel Receiver
Oscillator PLL Synthesized
RF Squelch Level -95dBm
Frequency Response 50Hz – 15kHz
S/N Ratio >57dB (±5kHz) “A” Weighted
Audio Out MIC Level – unbalanced – 3.5mm Mini-Jack
-64 dBm – 600 ohms @ ± 5kHz deviation
-28 dBm – 600 ohms @ ± 40kHz deviation
Batteries 2 “AA” Alkaline (2 x 1.5V) - 3-4 hours runtime
2 “AA” rechargeable Ni-MH (2 x 1.2V)
External Power 6VDC @ 0.5A
Dimensions 2.87"W x 4.45"H x 1.59"D (73 x 113 x 40.5 mm)
Weight Approx. 10.2oz (290g) w/batteries
35BT Body-pack Transmitter
Frequency Range UHF 188 Selectable Frequencies (566.125-589.875MHz)
Oscillator PLL Synthesized
RF Power 25mW
Frequency Response 50Hz – 15kHz
Max. Deviation ±40kHz @ 1kHz Modulation, MIC Input – 11dBm
Batteries 2 “AA” Alkaline (2 x 1.5V) – 6-8 hours runtime
2 “AA” rechargeable Ni-MH(2 x 1.2V)
Dimensions 2.52"W x 3.93"H x 1.106"D (64 x 100 x 27 mm)
Weight Approx. 6oz (170g) w/batteries
35XT Plug-In Transmitter
Frequency Range UHF 188 Selectable Frequencies (566.125-589.875MHz)
Antenna Internal
Max. Input level -16dBm
RF Power 25mW
Input Impedance 25k ohms
Audio Adjust. Range -65dBm to 46dBm
Battery 2 “AA” Alkaline (2 x 1.5V) – 6-8 hours runtime
2 “AA” rechargeable Ni-MH(2 x 1.2V)
Dimensions 1.57"W x 1.57"H x 4.49"L (40 x 40 x 114 mm)
Weight Approx. 6.35oz (180g) w/battery
35HT Handheld Microphone/Transmitter
Frequency Range UHF 188 Selectable Frequencies (566.125-589.875MHz)
Oscillator PLL Synthesized
RF Power 25mW
Frequency Response 50Hz – 15kHz
Max. Deviation ±40kHz @ 1kHz Modulation, MIC Input – 65dBm (dev ±5kHz)
Batteries 2 “AA” Alkaline (2 x 1.5V) – 8-10 hours runtime
2 “AA” rechargeable Ni-MH (2 x 1.2V)
Dimensions Φ1.89" x 9.2"L (48 x 234.5 mm)
Weight Approx. 9.5oz (270g) w/batteries

Operating the system: Because this is a frequency agile system, the receiver and transmitters
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
transmitters are on the same channel. Remember that each transmitter must be on a different
channel.
325UPR 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 Ch.1 and/or
Ch.2 of the 325UPR to “ON” and the battery level indicator(s) should come on. If they do not, check
the batteries. When the 325UPR receives a signal from the transmitter the reception level indicator
will come on. If it does not, make sure both the receiver and transmitters are on matching channels.
35BTTransmitter: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 or place it in a pocket. Switch the 35BT 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 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.
35XT Transmitter:Switch the transmitter 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 sound
through the camera’s monitor output. If the sound is distorted, lower the level control on the transmitter.
If there is not enough gain, raise the level control on the transmitter.
35HT Transmitter: Switch the transmitter 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 sound
through the camera’s monitor output. If the sound is distorted, lower the level control on the transmitter.
If there is not enough gain, raise the level control on the transmitter.
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10
Belt Clip
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5
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.
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(27) POWER:
Switches the transmitter “ON” or “OFF”.
(28) LCD Display:
This display shows the following information:
TV:Transmit Channel Number: 30:01 – 33:47
Battery Condition: Using a 3 step indicator - 1 (Low) to 3 (High)
To change the TV:Transmit channel number: Use the tip of the tool provided and press the
UP or DOWN button to the desired channel, number appears (refer to the included chart).
Once the desired TV:Transmit channel number has been selected on the transmitter, set the
receiver to the same number.
The TV:Transmit channel display is made of two parts. The first number is the actual TV
channel (30-33) and the second is the “transmit channel” number (01-47).

4 1
Thank you for purchasing Azden’s 325 wireless microphone system. Depending o
n
which system you ordered this package will contain one or more of the following compo
-
nents: the 325UPR receiver, the 35BT body-pack transmitter with EX-503L lavalier mi
-
crophone, the 35XT XLR plug-in transmitter and/or the 35HT handheld microphon
e
transmitter. This equipment is designed primarily for video cameras but is usable wit
h
most electronic components having a microphone level input. The 325UPR allows you t
o
“receive” audio from two different transmitters at the same time.
RECEIVER (325UPR)
(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.
*Alkaline batteries are preferred, but you can use Azden’s 1HR-3U rechargeable Ni-MH batteries.
(3) POWER:
Switches the receiver “ON” or “OFF”.
(4) MIC OUT jack:
The 325UPR is supplied with both a mini-to-mini and a mini-to-dual XLR cable.
For mini jack microphone inputs: Use the supplied mini-to-mini cable. Plug one
end of the cable into the receiver and the other end of the cable into the micro-
phone input of the video camera.
For 3-pin XLR microphone inputs: Use the supplied mini-to-dual XLR cable. Plug
the mini-plug end of the cable into the receiver (use the screw-down sleeve to se-
cure it to the receiver) and plug the XLR ends of the cable into the microphone
inputs of the video camera. Ch.1 is on the “Tip” while Ch.2 in on the “Ring”.
(5) LCD Display:
The twin LCD display will light up when the power is turned “ON”. The LCD displays
show the following information.
TV:Receive Channel Number: 30:01 – 33:47
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 TV:Receive channel number, use the tip of the tool provided and press
the UP or DOWN button until the desired channel number appears (refer to included
chart). Once the desired TV:Receive channel number has been selected on the receiver,
set the transmitter to the same number.
The TV:Receive channel display is made of two parts. The first number is the actual TV
channel (30-33) and the second is the “receive channel” number (01-47)
Once the microphone is plugged into the 35XT the locking ring should be rotated
clockwise until snug. To remove the microphone, first rotate the locking ring
counterclockwise and then, while pressing the XLR release, pull the microphone
away from the 35XT.
(21) MIC Input LEVEL Control:
The MIC input LEVEL control enables you to adjust the input level of the connected
microphone. Using the supplied tool, turn the dial clockwise to increase, or
counterclockwise to decrease the input level.
(22) LCD Display:
This display shows the following information:
TV:Transmit Channel Number: 30:01 – 33:47
Battery Condition: Using a 3 step indicator - 1 (Low) to 3 (High)
To change the TV:Transmit channel number: Use the tip of the tool provided and press
the UP or DOWN button to the desired channel, number appears (refer to the included
chart). Once the desired TV:Transmit channel number has been selected on the
transmitter, set the receiver to the same number.
The TV:Transmit channel display is made of two parts. The first number is the actual TV
channel (30-33) and the second is the “transmit channel” number (01-47).
HANDHELD MICROPHONE/TRANSMITTER (35HT)
(23) Remove the battery compartment cover by rotating it counterclockwise and sliding it
down.
(24) Insert two fresh Alkaline* “AA” batteries* into the compartment. Make sure the battery
polarity is correct as marked inside the battery compartment.
*While Alkaline batteries are preferred, you can use rechargeable Ni-Cd or Ni-MH batteries.
In the battery compartment you will also find #25 and #26:
(25) MIC LEVEL Control:
The MIC LEVEL control enables you to adjust the audio level of the microphone. Using the
supplied tool, turn the dial clockwise to increase, or counterclockwise to decrease the
microphone’s audio level.
(26) UP/DOWN Channel Buttons:
To change the channel number, use the tip of the tool provided and press the UP or DOWN
button until the desired channel number appears. Once the desired channel number has
been selected on the transmitter, set the receiver to the same channel number.

Note: When using two transmitters with the 325UPR please do the following:
A
) Make sure that you use 2 different channel numbers that are at least 10 numbers
apart. This will prevent possible crosstalk between the 2 channels being used. For ex-
ample: If you use TV:Receive channel number 30:10 for one transmitter, use channel
number 30:20 for the other transmitter. The 2 channels on the receiver must also be set
on the numbers 30:10 and 30:20.
B) The system will operate properly if both transmitters are in close proximity to each
other, however make sure that both transmitters are at least 10 feet away from the re-
ceiver, this will prevent the frequencies from overlapping.
(6) PHONE jack:
Plug a stereo headphone into this jack to monitor sound - Ch. 1 will be heard on the left,
Ch. 2 on the right.
(7) DC 6 Volt Input: An optional charger/power supply and rechargeable batteries are
available for the 325UPR. For additional information or to order these products please
visit the Azden website at www.azdencorp.com or contact your Azden dealer.
NOTE: Using a power supply of the wrong voltage/current may damage the unit
and void the warranty.
(8) Shoe Stand:
A
ttach the 325UPR 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 325UPR
from the camera.
(9) Antennas: For best reception the antennas should be pointed in an upward fashion.
Use caution, and do not force them into this position.
2 3
(14) 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 to the EX-503L, other lapel and/or headset
microphones with 3.5mm mini plugs can also be used with the 35BT.
(15) LCD Display:
This display shows the following information:
TV:Transmit Channel Number: 30:01 – 33:47
Battery Condition: Using a 3 step indicator - 1 (Low) to 3 (High)
To change the TV:Transmit channel number: Use the tip of the tool provided and press
the UP or DOWN button to the desired channel, number appears (refer to the included
chart). Once the desired TV:Transmit channel number has been selected on the trans-
mitter, set the receiver to the same number.
The TV:Transmit channel display is made of two parts. The first number is the actual TV
channel (30-33) and the second is the “transmit channel” number (01-47).
*While Alkaline batteries are preferred, you can use rechargeable Ni-Cd or Ni-MH batteries.
(16) AUDIO:
Prior to first turning the 35BT “ON” it is best to set theAUDIO switch to “OFF”. When you
are ready to begin transmitting, switch to “ON”. The “OFF” position acts as a “mute” that
maintains the RF signal but turns off the audio
XLR PLUG-IN TRANSMITTER (35XT)
(17) Open the battery compartment lid and insert two fresh “AA” Alkaline* batteries. Make
sure the battery polarity is correct as marked inside the battery compartment
*While Alkaline batteries are preferred, you can use rechargeable Ni-Cd or Ni-MH batteries.
(18) POWER:
Switches the transmitter “ON” or “OFF”.
(19) AUDIO:
Prior to first turning the 35XT “ON” it is best to set theAUDIO switch to “OFF”. When you
are ready to begin transmitting, switch to “ON”. The “OFF” position acts as a “mute” that
maintains the RF signal but turns off the audio.
(20) MIC Connector/Locking Ring:
This 3-pin XLR connector is the microphone input. Any low impedance microphone with a
corresponding connector can be attached here.
BODYPACK TRANSMITTER (35BT)
(10) Remove the battery compartment lid by sliding it down.
(11) Insert two fresh “AA”Alkaline 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:
(12) MIC Input LEVEL Control:
This 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.
(13) POWER:
Switches the transmitter “ON” or “OFF”.