JTS US-902D User manual

59506-038-08
PROFESSIONAL CO., LTD.
No.148,9thIndustryRoad,Ta-LiIndustrialPark,
TaichungCity,Taiwan,R.O.C.
Tel:886-4-24938803Fax:886-4-24914890
E-mail:[email protected]
www.jts.com.tw
US-902D / Mh-920 / Mh-930 / Mh-850 / Mh-750 / Mh-8800i
PT-920B(mi) / PT-850B(mi)

Instruction Manual
DUAL CHANNEL PLL DIVERSITY WIRELESS SYSTEM
US-902D

ank you for choosing the JTS wireless system. In order to obtain the best eciency from the system,
you are recommended to take few minutes to read this instruction manual carefully.

1. Important Caution
2. Features
3. Specication
3-1 Overall System
3-2 Receiver
3-3 Handheld Transmitter
3-4 Body-pack Transmitter
3-5 Optional Condenser Microphone
4. Part Identication & Accessories
4-1 Receiver
4-2 Handheld Transmitter
4-3 Body-pack Transmitter
4-4 Optional Condenser Microphone
4-5 Accessories
5. Preparing Procedures & Basic Operation
5-1 Receiver
5-2 Handheld Transmitter
5-3 Body-pack Transmitter
5-4 Installation of Condenser Microphones
6. System Operation
7. Recommendation
8. Important Notice
1
1
2
2
2
3
4
4
7
7
8
10
10
14
15
15
18
21
22
24
26
26
INDEX

WIRELESS MICROPHONE SYSTEM
1
1. Important Caution
2. Features
• Always makes all connections before plugging the unit into an AC power outlet.
• Do not leave the device in a place neither with high temperature nor high humidity.
• Always do not handle the power cord with wet hands!
• Keep the devices away from re and heat sources.
• Operated in UHF band where there is less RF interference than the VHF band.
• PLL synthesized technology is deployed.
• e diversity reception ensures the stable transmission and reception.
• Adjustable squelch control can eectively reduce the noise.
• Tuned antennas can benet the stable RF reception.
• Built-in Tone key Squelch & Noise Mute detection are available to restrain the interference
signal.
• Rugged metal housing can pass through the dicult environment.
• Equipped with balanced XLR and unbalanced for great convenience.
• Body-pack transmier provides phantom power for condenser lavaliere and headset micro-
phones.

2
3. Specication
3-1 Overall System
3-2 Receiver
RF Frequency Range................
Oscillation Type..........................
Channels...........................................
Audio Frequency Response
Band-width......................................
Operation Range.........................
502~960 MHz
PLL Synthesized Control OSC
16 Channels
50~18,000Hz
24 MHz
100M
Receiver Model......................
Frequency Preparation......
Carrier Frequency Range
S/N Ratio....................................
T.H.D..............................................
Display............................................
Display Contents....................
Controls........................................
Audio Output Level.............
AF Output Impedance.......
Squelch..........................................
Operation Voltage.................
Output Connector................
Dimension(m/m)................
US-902D
PLL Synthesized Control
502~960 MHz
> 105dB
<0.6%@1KHz
LCD
Channel, Antenna A/B, RF/AF Level Meter
Power On/O, Channel Up/Down,
Squelch Level, Audio Level
-12dB
600Ω
Pilot Tone, Noise and Mute
12-18 VDC, 300mA
2 Balanced XLR Sockets
1 Unbalanced Ø6.3mm Phone jack
420mm(W)* 45mm(H)* 232mm(D)

WIRELESS MICROPHONE SYSTEM
3
3-3 Handheld Transmitter
Model No. .......................................
Frequency Preparation............
Carrier Frequency Range......
RF Outputs......................................
Stability...............................................
Frequency Deviation................
LCD / LED Display..................
Controls.............................................
Spurious Emissions...................
Audio Frequency Response
Baery.................................................
Mh-920 / Mh-930
PLL Synthesized Control
502~960 MHz
10mW
±10KHz
±48KHz
Channel
Power On/O, Channel Up/Down
Lock-on Mode
<-50 dBC
50~16,000 Hz
UM3, AA 1.5V*2
Mh-850 / Mh-750
PLL Synthesized Control
502~960 MHz
10mW
±10KHz
±48KHz
Low Baery, Power On/O
Power On/O, Channel Selecting
<-50 dBC
50~16,000 Hz
UM3, AA 1.5V*2
Model No.........................................
Frequency Preparation............
Carrier Frequency Range......
RF Outputs.....................................
Stability...............................................
Frequency Deviation................
LCD Display...................................
Controls.............................................
Spurious Emissions....................
Audio Frequency Response
Baery..................................................
Mh-8800 i
PLL Synthesized Control
502~960 MHz
10mW
±10KHz
±48KHz
Channel, Baery Fuel Gauge, Sensitivity
Power On/O, Mode Seing, AF Level,
Channel Up/Down, Lock-on Mode
<-60 dBC
50~16,000 Hz
UM3, AA 1.5V*2

4
3-5 Optional Condenser Microphone
3-4 Body-pack Transmitter
Model No. ......................................
Frequency Preparation...........
Carrier Frequency Range.....
RF Outputs.....................................
Stability...............................................
Frequency Deviation................
LCD / LED Display.................
Controls.............................................
Spurious Emissions...................
Audio Frequency Response
Baery..................................................
PT-920 / PT-920Bmi
PLL Synthesized Control
502~960 MHz
10mW
±10KHz
±48KHz
Channel, Baery Fuel Gauge
Power On/O, AF Level,
Channel Up/Down, Lock-on
Mode
<-50 dBC
40~18,000 Hz
UM3, AA 1.5V*2
PT-850B / PT-850Bmi
PLL Synthesized Control
502~960 MHz
10mW
±10KHz
±48KHz
Power On/O, Low baery
Power On/O, AF Level,
Channel Selecting
<-50 dBC
40~18,000 Hz
UM3, AA 1.5V*2
Model No...............................
Connector..............................
Frequency Response......
Polar Paern..........................
Sensitivity (at 1000Hz)
Impedance.............................
Max. SPL for 1% THD
Dimension(mm)..............
Net Weight............................
CM-501
4P Mini XLR
100~15,000 Hz
Cardioid
-60±3 dB
2.2kΩ
130dB
Ø10.1mm(W)
* 26.4mm(H)
21.5g
CM-201i
4P Mini XLR
60~15,000 Hz
Omni-directional
-60±3 dB
2.2kΩ
130dB
Ø5mm(W)
* 9mm(H)
20.7g
CM-125i
4P Mini XLR
50~18,000 Hz
Omni-directional
-53±3 dB
4.4kΩ
130dB
Ø4mm(W)
* 11mm(H)
7g (cable excluded)
Lavaliere Microphone // CM-501 CM-201i CM-125i

WIRELESS MICROPHONE SYSTEM
5
Headset Microphone // CM-214i CM-214Ui CM-214ULi CM-235i
CX-504
Model No...............................
Connector..............................
Frequency Response......
Polar Paern..........................
Sensitivity (at 1000Hz)
Impedance.............................
Max. SPL for 1% THD
Dimension(mm)..............
Net Weight............................
CM-235i
801C4 (4P Mini XLR )
50~18,000 Hz
Omni-directional
-53±3 dB
1.8kΩ
130dB
155mm(W)
* 134mm(H)
* 157mm(D)
17g (cable excluded)
CX-504
4P Mini XLR
30~18,000 Hz
Cardioid
-68±3 dB
680Ω
130dB
285mm(W)
* 55mm(H)
* 111.3mm(D)
56.3g
Model No...............................
Connector...............................
Option Connector...........
Frequency Response......
Polar Paern..........................
Sensitivity (at 1000Hz)
Impedance.............................
Max. SPL for 1% THD
Dimension(mm)..............
Net Weight............................
CM-214i
801C4
(4P Mini XLR)
801C3 (3P Mini XLR)
801CS (3.5 stereo plug)
801CR
60~15,000 Hz
Omni-directional
-60±3 dB
1.8kΩ
130dB
125mm(W)
* 134mm(H)
* 157mm(D)
32.9g
CM-214Ui
4P Mini XLR
30~18,000 Hz
Cardioid
-68±3 dB
680Ω
130dB
205mm(W)
* 134mm(H)
* 157mm(D)
38.4g
CM-214ULi
801C3 (3P Mini XLR)
801C4 (4P Mini XLR)
801CS (3.5 stereo plug)
801CR
100 ~ 18,000Hz
Cardioid
-65±3 dB
1.8kΩ
120dB
125mm(W)
* 134mm(H)
* 157mm(D)
18g (cable excluded)

6
Ear-hook Microphone // CM-801 CM-804i CM-8015 CM-825i
Model No...............................
Connector..............................
Option Connector...........
Frequency Response......
Polar Paern..........................
Sensitivity (at 1000Hz)
Impedance.............................
Max. SPL for 1% THD
CM-801/CM-804i
801C4 (4P Mini XLR)
801C3 (3P Mini XLR)
801CS (3.5 stereo plug)
801CR
60~15,000 Hz
Omni-directional
-64±3 dB
1.8kΩ
130dB
CM-8015/CM-825i
801C4 (4P Mini XLR)
801C3 (3P Mini XLR)
801CS (3.5 stereo plug)
801CR
50~18,000 Hz
Omni-directional
-53±3 dB
1.8kΩ
130dB
Model No...............................
Connector..............................
Frequency Response......
Polar Paern..........................
Sensitivity (at 1000Hz)
Impedance.............................
Max. SPL for 1% THD
Good For.................................
Model No...............................
Connector..............................
Frequency Response......
Polar Paern..........................
Sensitivity (at 1000Hz)
Impedance.............................
Max. SPL for 1% THD
Good For.................................
CX-500
4P Mini XLR
20~20,000 Hz
Omni-directional
-58±3dB
1.5kΩ
130 dB
Violin
CX-508W
4P Mini XLR
50~18,000 Hz
Cardioid
-67±3 dB
220Ω
130 dB
Winds
CX-500F
4P Mini XLR
20~20,000 Hz
Omni-directional
-58±3dB
1.5kΩ
130 dB
Flutes
CX-520
4P Mini XLR
50~16,500 Hz
Supercardioid
-78±3dB
600Ω
148 dB
Harmonica
CX-516W
4P Mini XLR
30~18,000 Hz
Cardioid
-67±3 dB
220Ω
130 dB
Accordion
Compatible Instrument Microphone // CX-500 CX-500F CX-520
CX-508W CX-516W

WIRELESS MICROPHONE SYSTEM
7
Mixed
RX2
RX2RX1
RX1
300
4. Parts Identication & Accessories
4-1 Dual Channel PLL Diversity Receiver // US-902D
Power Switch
Channel Selector (Up/Down)
LCD panel
Volume control
Antenna
Squelch level adjustor
DCV Input (12-18V DC/300mA)
Unbalanced Ø6.3mm jack socket
Balanced XLR socket
1
4
7
2
5
8
3
6
9
144
7
5
8
3
6
9
2

8
Interchangeable dynamic capsule
LED display
Channel selector
Baery tray
Baery tray buon
Power On/O switch
Mh-750 / Mh-850
1
3
5
2
4
6
Mh-750 Mh-850
1 1
5 5
4 4
2 2
6 6
3 3
Interchangeable dynamic capsule
LCD display
Down buon
UP buon
Set buon
Baery tray
Baery tray buon
Power On/O switch
4-2 Handheld Transmitter //
Mh-920 / Mh-930
3
5
7
2
4
6
8
Mh-920 Mh-930
1
7 7
1
3
66
22
5
4
85
3
4
8
1

WIRELESS MICROPHONE SYSTEM
9
Mh-8800i
Interchangeable dynamic capsule
LCD display
Down buon
UP buon
Set buon
Baery tray
Power On/O switch
Mute On/O switch
1
3
5
7
2
4
6
8
7
83
5
2
4
Mh-8800i
Mh-8800i
Mh-8800i
1
6

10
PT-920B
PT-850B
PT-920B
PT-920Bmi
PT-850B
PT-850Bmi
PT-920Bmi
PT-850Bmi
Clip
4 Pin Mini XLR
Windscreen
1
3
2
Mic. input
Power On/o switch
Antenna
LCD display
LED display
Set buon
Up buon
Down buon
Channel selector
AF level control
Gain adjust
Baery tray
Baery tray cover
Carry case
Belt-loop
4-3 Body-pack Transmitter // PT-920B(mi) / PT-850B(mi)
1
3
5
10
7
12
14
13
15
2
4
9
6
11
8
4-4 Optional Condenser Microphone
Lavaliere Microphone // CM-501 CM-201i CM-125i
CM-501 CM-201i CM-125i
333
2
1
1 1
12
14
11
13
10 10
1 1
3 3
6
8
2 2
45
9
7
15

WIRELESS MICROPHONE SYSTEM
11
Gooseneck
Adjustable headband
Headband
4 Pin Mini XLR
Windscreen
1
3
4
5
2
Headset Microphone // CM-214i / CM-214Ui / CM-214ULi / CM-235i /
CX-504
CM-214i CM-214Ui
CM-235i CX-504
2 2
2
2
3
55
5
5
5
1
1
1
1
1
4
CM-214ULi
Standard :
4 Pin Mini XLR
3 Pin Mini XLR
3.5 Stereo Plug

12
Ear-hook Microphone // CM-801 CM-804i CM-8015 CM-825i
Boom
Adjustable Headband
Adjustable ear hook
Detchable Cable
Cable Clip
Windscreen
4 Pin Mini XLR
3 Pin Mini XLR
3.5 Stereo Plug
4Pin Hirose connecter
6
8
8
7
9
10
9
3
5
7
4
1
2
CM-825i 5
6
1
3
4
2
Option
Option
Option
CM-801
5
6
1
3
4
CM-804i 5
6
1
3
4
2
CM-8015
5
6
1
2
4
10

WIRELESS MICROPHONE SYSTEM
13
Compatible Instrument Microphone // CX-500 CX-500F CX-520 /
CX-508W CX-516W
6
Gooseneck
Clip
Bracket
Volume Control
Windscreen
4 Pin Mini XLR
4
5
6
3
2
5
5
1
CX-508WCX-520
CX-500F
CX-500
CX-516W
2
1
1
5 5
1
3
2
4

14
4-5 Accessories
4
6
3
5
2
1AC/DC adaptor
Switching Power Supply(100V~240V , 50~60Hz)
Linear Power Supply (220V , 50Hz)
Linear Power Supply (220V , 60Hz)
Screwdriver
RM-12 Rack mount kit
AF output cable (with Ø6.3 plug at both ends)
GC-80/GC-100 Guitar Cable
GC-80L/GC-100L Guitar Cable
Option
Option
Option
A
B
C
A
B C
4 6
3
5
2
1

WIRELESS MICROPHONE SYSTEM
15
5. Preparing Procedures & Basic Operation
5-1 Receiver
(1) Audio Output Connector
Connect one end of the AF output cable to the AF output socket in the rear panel, then plug
another end to the “MIC IN” input socket of a mixer or amplier. (Step 1)
It is equipped with balanced XLR output and unbalanced Φ6.3mm output, choose the
proper way for use.
(2) Power output connector
Plug in one end of AC/DC adaptor cable to DC input socket in the rear panel of receiver, and
plug another end into an AC outlet. (Step 2)
(3) Turn the receiver on by pressing the Power buon on
the front panel
(4) Adjust the volume control to a proper level.
MIXER
AC/DCADAPTOR
ACPOWERSOCKET
AUDIOOUTPUT
DCINPUT
2
1
Mixed
RX2
RX2RX1
RX1
300

16
(5) LCD Panel
RF incoming signal level of RX1
RF incoming signal level of RX2
AF incoming signal level of RX1
AF incoming signal level of RX2
Diversity of RX1 (Antenna A or B active)
Diversity of RX2 (Antenna A or B active)
Channel display of RX1
Channel display of RX2
Ba. status of transmier
Mute status of RX1
Mute status of RX2
Seing lock-on mod
(6) Basic Operation
US-902D
1. Selecting channel
Press the Up or Down buon till the RX1 starts ashing, and again press the Up /
Down buon to select a suitable channel from the pre-set 16 channels. Later the RX1
stop ashing, the receiver will store the channel automatically meanwhile presenting the
channel number. Repeat the action for RX2.
123 2 41
5 6
811710 9
9
4
6
9
12
3
5
8
11
2
1
7
10