JTS US-902D Pro Instruction Manual

Instruction Manual

DUAL CHANNEL PLL DIVERSITY WIRELESS SYSTEM

US-902D Pro

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

3

4

6

6

7

8

8

11

12

12

15

17

18

20

22

23

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 Pro

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

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.................................................

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

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

4

3-5 Optional Condenser Microphone

Model No...............................

Connector..............................

Frequency Response......

Polar Paern..........................

Sensitivity (at 1000Hz)

Impedance.............................

Max. SPL for 1% THD

Dimension(mm)..............

Net Weight............................

CM-225
4P Mini XLR
50~18,000 Hz
Omni-directional

-53±3 dB

4.4kΩ
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..............................

Frequency Response......

Polar Paern..........................

Sensitivity (at 1000Hz)

Impedance.............................

Max. SPL for 1% THD

Dimension(mm)..............

Net Weight............................

CM-204

4P Mini XLR

60~15,000 Hz
Omni-directional

-60±3 dB

2.2kΩ
130dB
125mm(W)

* 134mm(H)
* 157mm(D)

32.9g

CM-204U
4P Mini XLR

30~18,000 Hz
Cardioid

-68±3 dB
680Ω

130dB

205mm(W)
* 134mm(H)
* 157mm(D)

38.4g

CM-204UL
801C3 (3 pin mini XLR)
801C4 (4 pin mini XLR)
801CS (3.5 stereo plug)

100 ~ 18,000Hz

Cardioid

-75±3 dB

1.5kΩ
120dB
125mm(W)

* 134mm(H)
* 157mm(D)

18g (cable excluded)

Headset Microphone // CM-204 CM-204U CM-204UL CM-225 CX-504

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-201

4P Mini XLR

60~15,000 Hz
Omni-directional

-60±3 dB

2.2kΩ

130dB

Ø5mm(W)*
9mm(H)

20.7g

CM-125
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-201 CM-125

WIRELESS MICROPHONE SYSTEM

5

Model No...............................

Connector..............................

Frequency Response......

Polar Paern..........................

Sensitivity (at 1000Hz)

Impedance.............................

Max. SPL for 1% THD

CX-508W
4P Mini XLR
50~18,000 Hz

Cardioid

-67±3 dB
220Ω

130 dB

CX-516W
4P Mini XLR
50~18,000 Hz

Cardioid

-67±3 dB
220Ω

130 dB

Instrument Microphone // CX-508W CX-516W

Model No...............................

Connector..............................

Frequency Response......

Polar Paern..........................

Sensitivity (at 1000Hz)

Impedance.............................

Max. SPL for 1% THD

CM-801/CM-804i
801C3 (3 pin mini XLR)
801C4 (4 pin mini XLR)
801CS (3.5 stereo plug)
60 ~ 15,000Hz
Omni-directional

-64±3 dB

1.8kΩ
130dB

CM-8015/CM-825i
801C3 (3 pin mini XLR)
801C4 (4 pin mini XLR)
801CS (3.5 stereo plug)
50 ~ 18,000Hz
Omni-directional

-53±3 dB

1.2kΩ
130dB

Ear-hook Microphone // CM-801 CM-804i CM-8015 CM-825i

6

Mixed

RX2

RX2RX1

RX1

300

4. Parts Identication & Accessories

4-1 Dual Channel PLL Diversity Receiver // US-902D Pro

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

WIRELESS MICROPHONE SYSTEM

7

Interchangeable dynamic capsule
LED display
Channel selector
Baery tray
Baery tray buon
Power On/O switch

Mh-750 / Mh-850

18

20

22

19

21

23

Mh-750 Mh-850

18 18

22 22

21 21

19 19

23 23

20 20

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

10

12

14

16

11

13

15

17

Mh-920 Mh-930

10

16 16

10

12

15

15

11

11

14

13

17

14

12

13

17

8

PT-920B
PT-850B

PT-920B
PT-920Bmi

PT-850B
PT-850Bmi

PT-920Bmi
PT-850Bmi

Clip
4 Pin Mini XLR
Windscreen

39

41

40

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)

24

26

28

33

30

35

37

36

38

25

27

32

29

34

31

4-4 Optional Condenser Microphone

Lavaliere Microphone // CM-501 CM-201 CM-125

CM-501 CM-201 CM-125

41

41

41

40

39

39 39

35

37

34

36

33 33

24 24

26 26

29

31

25 25

27

28

32

30

38

WIRELESS MICROPHONE SYSTEM

9

Gooseneck

Headband
4 Pin Mini XLR
Windscreen

42

44

45

45

45

45

45

45

43

Headset Microphone // CM-204 CM-204U CM-204UL CM-225 CX-504

44

42

42

42

42

42

43 4343

4343

CM-204 CM-204U

CM-225

CM-204UL

CX-504

10

Boom
Adjustable Headband
Adjustable ear hook

Detchable Cable

Cable Clip
Windscreen
4 Pin Mini XLR
3 Pin Mini XLR

3.5 Stereo Plug

Gooseneck

Clip
Windscreen
4 Pin Mini XLR

46

55

49

58

52

48

57

51

54

47

56

50

53

Instrument Microphone // CX-508W CX-516W

Ear-hook Microphone // CM-801 CM-804i CM-8015 CM-825i

CM-801

CM-8015

CM-804i

CM-825i

CX-508W CX-516W

46

46

46

46

49

49

49

49

48

48

48

48

51

51

51

51

50

50

50

50

47

47

58

57 57

56

55 55

52 5453

WIRELESS MICROPHONE SYSTEM

11

4-5 Accessories

62

64

61

63

60

59

AC/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

62 64

61

63

60

59

12

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

WIRELESS MICROPHONE SYSTEM

13

(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 Pro / US-9216 Series

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.

7667 66 6865

69 70

727571 74 73

73

68

70

73

76

67

69

72

75

66

65

71

74

14

2. Seing Lock-On
Hold both Up and Down buons till the HO LD starts ashing , the Lock-On

mode is done. To release the Lock-On mode hold both Up and Down boons for 2
secs.

3. Adjusting Squelch level
With the Squelch level control in the rear panel, you can adjust the squelch at a suitable

level. e higer the SQ. level, the shorter the operation will be.

Mixed

RX2

RX2RX1

RX1

300

Squelch level

WIRELESS MICROPHONE SYSTEM

15

Battery Insertion // Mh-920 / Mh-930 / Mh-850 / Mh-750

(1) Loosen the microphone head counter-clockwise. (Figure 1)

(2) Hold on to both baery tray buons to release it. (Figure 2)

(3) Insert 2 pieces of UM-3 1.5 V baeries, remember to match

correct polarity. (Step 1 of Figure 3)

(4) Directly push the baery tray back. (Step 2 of Figure 3)

(5) Aim the connectors exactly for screwing on the microphone

head clockwise. (Figure 4)

(6) e on/o switch is located on the boom of the microphone

5-2 Handheld Transmitter

Caution

To avoid baery leakage or explosion
(1) Remove baeries when the wireless microphones will not be used for a long time.
(2) When you need to replace the baeries, replace both baeries at the same time with new ones.
(3) Don’t use dierent type of baeries together!

Figure 1

Figure 2

2

1

Figure 3

Figure 4

16

Channel Select // Mh-920 / Mh-930

(1) LCD panel

Channel
Baery indictor

(2) Channel Selection

1. Press the SET buon to select between frequency and sensitivity.

2. Press the UP or DOWN buon to adjust the channel

3. Press UP or DOWN the “CH” will ash. en re-press UP or DOWN buon

to select the channel from 1-16.

4. Hold UP to DOWN buon 2 seconds, the channel will be increased or decreased.

5. In 5 seconds channel will be stored upon above procedure done.

(3) Sensitivity adjusting

1. Press the SET buon twice to select sensitivity. Lasting for 3 seconds at the rst press, then
1 second for the second press, and the display appears SenSit

2. Use UP or DOWN buons to adjust changes.

3. Finally press SET buon again to store your changes.

(4) UP buon to sctivate “Lock mode”

Hold on to UP buon for 3 seconds to activate “Lock mode”, press again to unlock. (Prevent
accidental programming or switching o )

78 77

77

78

UpSet Down

Up

Set

Down

Channel Select // Mh-850 / Mh-750

(1) Use the supplied screwdriver to select a desired channel for the transmiers. e transmiers

are preprogrammed with 16 channels.

(2) Make sure the channel of receiver matches that of the transmier.

POWER

Low Batt.

CH

WIRELESS MICROPHONE SYSTEM

17

5-3 Body-pack Transmitter // PT-920B(mi) / PT-850B(mi)

(1) PT-920B(mi) LCD panel

Main display
Baery indictor

(2) Basic operation

1. Slide the baery tray cover in the direction of the arrow

to open it, insert two 1.5V baeries according the correct
polarity, and return the cover.

2. Switch the transmier On.
e On/O switch is located on the top of the transmier.

3. Channel selecting

PT-920B(mi)
Hold “Set Buon” till the channel number start ashing.
Press Up or Down to select a desired channel from

the pre-set 16 channels.
PT-850B(mi)
Use the supplied screwdriver to select a desired channel for

the receiver and transmiers.
Both receiver and transmiers are preprogrammed with 16
channels.

4. Sensitivity adjusting
ere is a gain control adjustor in the up-le of its back,

you can adjust the level in 3 steps from 0 dB to 30 dB.

AUDIO ADJUSTING STICKER

79

80

SET

PT-920BGmi

ATTENUATION PAD

AF LEVEL CONTROL

DOWN

UP

SET

ON/OFF

PT-920B
PT-920Bmi

PT-850B
PT-850Bmi

ON/OFF

CHANNEL

79

80

18

5-4 Installation of Condenser Microphones

(1) Lavaliere microphone

Aach lavaliere microphone to a tie, lapel, where is suitable for sound pick-up. Plug the

connector into input socket on the body-pack transmier.

(2) Headset microphone

Put the headband behind your head, and x the temples on your ears as shows, then
adjust the gooseneck to have best miking. Plug the connector into input socket on the
body-pack transmier.

(3) With Wind Microphone

1. Outsanding for saxophone, brass, woodwind instruments.

2. Flesible gooseneck together with adjustable axis allow accurate sound source aiming.

3. Clamp with elastic grip ensures stable holding instrument without damaging.

4. Windscreen to prevent pop noise eectively.

SET

PT-920BG

MIC IN

SET

PT-920BG

WIRELESS MICROPHONE SYSTEM

19

(4) Ear-hook Microphone

1. Lightweight Dual Ear Hook Microphone
Try on whether the headset is t.

Adjust the headband to a suitable width.

Tighten or loosen the curve of the ear-hook by twisting the loop or expanding it.
Curve and bend the boom to t your face.

Aach the detachable cable to a suitable place by a cable clip.

2. Lightweight Single Ear Hook Microphone
Try on whether the original curve is tight or loose.
Re-try and push the xed curve against your earlobe.
Curve and Bend the boom to t your face.

Aach the detachable cable to a suitable place by a cable clip.

20

6. System Operation

Be sure to mute the audio signal of mixer or amplier before turning on the receiver or trans-

mier.

Turn AF level on the receiver completely counter-clockwise to the minimum level, and press
the power On/O switch on the front panel of receiver. As soon as you turn power on of receiver,
the power LCD lights on, meanwhile the RF signal and AF level indicate the transmission status,
and receiver is ready for operating.

Always it’s a good idea to keep “open space” between transmier and receiver, that is able to

improve RF reception.

(1) Press the Up / Down buon to select the channel for the receiver. Use the supplied

screwdriver to select a desired channel for handheld transmier or body-pack transmier.
Both receiver and transmier are preprogrammed with 16 channels.

(2) Press the Up / Down buon to select the channel for the receiver, handheld treans-

mier or body-pack transmier. Both receiver and transmier are preprogrammed with 16
channels.

(3) en with the Up / Down buon to select the channel of receiver the same as the trans-

mier, please make sure the receiver channel matches that of the transmier.

(4) When 2 or more transmiers and receivers are being use in the same location, they must

be set up to use dierent channels. If existing channel is being interfered, please change to
another channel non-interference.

6-1 Power on

6-2 Match channel between receiverr and transmitter

Up

S

et Down

SET

PT-920BGmi

DOWN

UP

DOWN

UP

CH

S

DOWN

UP

WIRELESS MICROPHONE SYSTEM

21

6-3 Using the Body-pack transmitter

(1) On the rear panel of PT-920B(Bmi) / PT-850B(Bmi) body-back transmier, equipped the

AF level control. Use the supplied plastic stick to adjust a proper level.

(2) e carry case allows the PT-920B(Bmi) / PT-850B(Bmi) to be aached on performer’s belt,

place the antenna towards the back of his body. e Velcro tag ensures tight xing and less
hindrance during performance. Wind the Velcro tag around the belt and x it.

(3)Wearing the Body-pack transmier

e carry case allows body-pack transmier to be aached on performer’s belt, place the

antenna towards the back of his body. e Velcro tag around the belt and x it.

22

7. Recommendation

(1) In order to achieve the optimum reception condition and also extend the operating distance,

please leave a “open space” between the receiver and transmier.
(2) Keep the devices away from the metal objects or any interference sources, at least 50 cm.
(3) To avoid the feed-back eect, don’t leave the mic. to aim at the speakers directly.
(4) For best pick-up paern, please hold the middle of the mic. body.
(5) Remove baeries from the baery compartment when the transmier will not be used for a

long time.
(6)When you need to replace the baeries, please replace both baeries at the same time with

new ones.

WIRELESS MICROPHONE SYSTEM

23

8. Important Notice

(1) JTS oers wireless systems in a selection of bands that conform to the dierent government

regulations of specic nations or geographic regions. ese regulations help limit radio
frequency (RF) interference among dierent wireless devices and prevent interference with

local public communications channels, such as television and emergency broadcasts.

(2) For information on bands available in your area, consult your local dealer or phone JTS.
More information is also available at JTS’s website (www.jts.com.tw).

(3) is Radio apparatus may be capable of operating on some frequencies not authorized in
your region. Please contact your national authority to obtain information on authorized

frequencies and RF power levels for wireless microphone products.

US-902D Pro / Mh-920 / Mh-930 / Mh850 / Mh-750

PT-920B(mi) / PT-850B(mi)

59506-038-04

1856