JTS US-903DC Pro User manual

Instruction Manual
DUAL CHANNEL PLL DIVERSITY WIRELESS SYSTEM
US-9216 Series
US-903DC Pro US-9364 Series
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. Recommendation
7. Important notice
1
1
2
2
2
3
3
4
6
6
7
8
8
11
12
12
17
19
22
23
24
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 (US-902D Pro / US-9216 Series)
64 Channel (US-903DC Pro / US-9364 Series)
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 / US-9216 Series
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 Leve
-12dB
600Ω
Pilot Tone, Noise and Mute
12-18 VDC, 300mA
2 Balanced XLR Sockets
1 Unbalanced Ø6.3mm Phone jack
420(W)* 45(H)* 232(D)
US-903DC Pro / US-9364 Series
PLL Synthesized Control
502~960 MHz
> 105dB
<0.6%@1KHz
LCD
Group/Channel, Antenna A/B,
RF/AF Level Meter
Power On/O,
Channel Up/Down,
Squelch Level, Audio Level,
Lock-on
-12dB
600Ω
Pilot Tone, Noise and Mute
12-18 VDC,900mA
2 Balanced XLR Sockets
1 Unbalanced Ø6.3mm Phone jack
420(W)* 45(H)* 232(D)

WIRELESS MICROPHONE SYSTEM
3
3-3 Handheld Transmitter
3-4 Body-pack Transmitter
Model No.........................................
Type......................................................
Frequency Preparation............
Carrier Frequency Range......
RF Outputs.....................................
Stability...............................................
Frequency Deviation................
LCD Display...................................
Controls.............................................
Spurious Emissions....................
Audio Frequency Response
Baery..................................................
Model No. .........................................
Type........................................................
Frequency Preparation.............
Carrier Frequency Range........
RF Outputs.......................................
Stability.................................................
Frequency Deviation.................
LCD Display....................................
Controls...............................................
Spurious Emissions.....................
Audio Frequency Response..
Baery...................................................
Mh-8800 Series /Mh-8016 Series
Mh-8800G Series /Mh-8064 Series
Handheld
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
PT-920B / PT-920BG / PT-920Bmi / PT-920BGmi
Body-pack
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

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
10
11
12
4. Parts Identication & Accessories
4-1 Receiver //
US-902D Pro / US-9216 Series
Dual Channel PLL Diversity Receiver
US-903DC Pro / US-9364 Series
Dual Channel PLL Diversity Receiver
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
Power Switch
Channel Selector (Up/Down)
LCD panel
Volume control
Antenna
Charger
Squelch level adjustor
DCV Input (12-18V DC/900mA)
Unbalanced Ø6.3mm jack socket
Balanced XLR socket
1
4
7
15
13
16
18
14
17
19
2
5
8
3
6
9
144
7
2
5
8
3
6
9
Mixed
RX2
RX2 RX1
RX1
900
1011
12
15 13 13
16
18
14
1719

WIRELESS MICROPHONE SYSTEM
7
Mh-8800Gi
Mh-8800GiMh-8800G
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
Interchangeable dynamic capsule
Power On/O switch
Channel Selector
Gain Level
Group Seing
Baery tray
4-2 Handheld Transmitter //
Mh-8800G(i) / Mh-8800(i) Series
Mh-8064 / Mh-8016 Series
Mh-8800Gi
Mh-8800i
Mh-8064
Series
Mh-8016
Series
Mh-8800G
Mh-8800
20
22
24
26
21
23
25
28
30
31
32
33
29
27
20 20
22
24
26
21
23
25
27
28 28
30 30
31 31
32 33
29 29

8
SET
PT-920BG
PT-920B PT-920BG
Clip
4 Pin Mini XLR
Windscreen
47
49
48
Mic. input
Power On/o switch
Antenna
LCD display
Set buon
Up buon
Down buon
AF level control
Gain adjust
Baery tray
Baery tray cover
Carry case
Belt-loop
4-3 Body-pack Transmitter // PT-920BG(mi) / PT-920B(mi)
34
36
38
43
40
45
46
35
37
42
39
44
41
4-4 Optional Condenser Microphone
Lavaliere Microphone // CM-501 CM-201 CM-125
CM-501 CM-201 CM-125
49 49 49
48
47
47 47
34
36
38
43
40
45 46
35
37
42
39
44
41 41

WIRELESS MICROPHONE SYSTEM
9
Gooseneck
Headband
4 Pin Mini XLR
Windscreen
50
52
53
53 53
53
53
53
51
Headset Microphone // CM-204 CM-204U CM-204UL CM-225 CX-504
52
50
50
50
50
50
51 5151
5151
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
54
63
57
66
60
56
65
59
62
55
64
58
61
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
54
54
54
54
57
57
57
57
60
56
56
56
56
59
59
59
59
62
58
58
58
58
61
55
55
66
65 65
64
63 63

WIRELESS MICROPHONE SYSTEM
11
4-5 Accessories
70
72
69
71
68
67
70
69
7271
68
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
67
MIXER
AC/DC ADAPTOR
AC POWER SOCKET
AUDIO OUTPUT
DC INPUT
2
1
Mixed
RX2
RX2 RX1
RX1
900
1856

12
5. Preparing Procedures & Basic Operation
(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.
SET
UHF
POWER
VOL
SET
UHF
POWER
VOL
5-1 Receiver
MIXER
AC/DC ADAPTOR
AC POWER SOCKET
AUDIO OUTPUT
DC INPUT
2
1
Mixed
RX2
RX2 RX1
RX1
900
1856

WIRELESS MICROPHONE SYSTEM
13
(5) LCD Panel
US-902D Pro / US-9216 Series
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
US-903DC Pro / US-9364 Series
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)
Group & channel display of RX1
Group & channel display of RX2
Mute status of RX1
Mute status of RX2
Seing lock-on mode
8576 75 7774
78 79
818480 83 82
82
76
88
78
90
81
93
84
96
75
87
77
89
80
92
83
95
74
86
79
91
82
94
85
86
90
93
96 87 89
92
95
88
91
94
Mixed
RX2
RX2 RX1
RX1
900
1856

14
(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.
2. Seing Lock-On
Hold both Up and Down buons till the HOLD 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.
Squelch level
Mixed
RX2
RX2 RX1
RX1
900
1856

WIRELESS MICROPHONE SYSTEM
15
US-903DC Pro / US-9364 Series
1. Selecting group channel:
Step 1 Group set up:
Press “SET” buon two sec. till the “ ” show up, then “A-1” starts ashing,
press the Up or Down buon to select a suitable group from the pre-set
four group of “ , , , and ”. en, press “SET” to store the group.
Step 2 Channel set up:
en the channel number is ashing, press the Up or Down buon to
select a suitable channel from the pre-set 16 channels.
Aer step Step 1 & Step 2, again press “SET” buon the receiver will store the
seing automatically.
2. Seing Lock-On:
2-1 Press “SET” buon two sec. repeat pressing till “ ” appeares. Press ”UP” but-
ton to lock-on mode and “DOWN” buon to lock-o mode. Re-press ”SET” buon
the lock function will store.
2-2 To release the Lock-On mode. Press “SET” buon two sec. till “ ” show up,
then press “DOWN” buon till “ ” appears, press “SET” again then lock-on
relieved.
3. Seing procedure is the same between channel A & B.
4. Channel A & B can’t be set up in the same group and frequency, the system will avoid this
problem automatically.
5. e lock-on or lock-o is eective on both A and B simultaneously.

16
Using the baery charger of US-903DC Pro / US-9364 Series(Optional)
1. Push the charger’s tray and put 4 pcs of rechargeable baeries into the baery tray. Please
match the correct polarity (+ and -) , then return the tray for charging the baeries.
2. It is convenient to know the charging status via the LED indicator. e two red LED will
ash during charging and as soon as the baeries is fully charged, the two red LED will
light up.
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!

WIRELESS MICROPHONE SYSTEM
17
(1) Baery Insertion
1. Insert 2 pcs 1.5V baeries into the baery tray.
2. Aer puing into the baery, switch on the power switch.
(2) LCD Operation
Down buon
Up buon
Set buon
Channel
Group
Baery indictor
(3) Channel Selection
1. Mh-8800/Mh-8800i
Hold “Set Buon” till the SETUP shows, then the channel number will start ashing.
Press Up or Down to select a desired channel from the pre-set 16 channels.
Press “Set Buon” to store the channel.
2. Mh-8800G/Mh-8800Gi
Hold “Set Buon” till the SETUP shows, then the group number will start ashing.
Press Up or Down to select a desired group from the pre-set four groups of A. B. C. D.
Re-press “Set Buon”, then the channel number begins ashing.
Press Up or Down to select a desired channel from the pre-set 16 channels.
Press “Set Buon”to store the channel.
5-2 Handheld Transmitter //
Mh-8800G(i) / Mh-8800(i) Series
97
99
98
100
101
102
Mh-8800i
Mh-8800Gi
Mh-8800GiMh-8800G
Mh-8800Gi
Mh-8800i
Battery tray
Mh-8800G
Mh-8800
Power switch
97
97
99
99
98
98
100
100
101
102
102