JTS RU-988KB User manual

2
59508-095-02
No. 148, 9th Industry Road, Ta-Li Industrial
Park,Taichung City, Taiwan, R.O.C.
Tel: [phone] Fax: [phone]
E-mail: [email protected]
www.jts.com.tw
PROFESSIONAL CO., LTD.
UHF PLL DUAL CHANNEL DIVERSI TY RECEIVE R
R -988 KB

3
Instruction Manual
UHF PLL
With JTS Ultrasonic Synchronizing Technology
UHF PLL DUAL CHANNEL DIVERSI TY RECEIVE R
R -988 KB

One year product warranty
Warranty description
1. Be sure to put the warranty label indicating purchase date on the bottom of
equipment to ensure your interest in maintenance and service.
2. Product warranty, starting on the purchase date indicated on “warranty label”, will
last for one year; if the equipment does not have “warranty label”, the warranty
period is 15 months from the manufacturing date. If a microphone is broken but
not sent back with the equipment, the warranty period is 15 months from the
manufacturing date of the microphone.
3. Within the warranty period, if the equipment is broken under normal use as
instructed in manual, please contact the original selling store for repair.
4. When the product is returned for repair, to facilitate proper determination of
cause of malfunction and of whether repair fee is needed, please ship back the
equipment and microphone together.
5. Within the warranty period, our company provides repair service at no cost
except for the following conditions that parts and repair may be charged:
a.Damages due to natural disaster or irresistible outside forces.
b.Damages due to drop, water, moisture, corrosion, foreign objects, missing
components.
c.The warranty does not cover consumable parts. (such as microphone capsule,
ball grille etc.)
d.Those without“warranty label” on equipment or with“warranty label” being
damaged and failing to identify warranty period.
6. Please keep the warranty properly. No replacement will be made if the warranty
is missing.
Equipment
serial number
Contact
number
Address
Purchase date
Selling store
stamp Be sure to put store stamp and ll in purchase date for the warranty to be
eective!
Product Model
Customer
name

1. Notes for system operations
2. Features
3. Specications
3-1 UHF PLL dual-channel diversity receiver //
3-2 UHF PLL hand-held transmitter //
3-3 UHF PLL body-pack transmitter //
3-4 Optional condenser microphone
4. Description of parts
4-1 UHF PLL dual-channel diversity receiver //
4-2 UHF PLL hand-held transmitter //
4-3 UHF PLL body-pack transmitter //
4-4 Accessories
4-5 Optional Condenser Microphone
5. Connecting
5-1 How to connect the receiver //
5-2 Transmitter installation // /
6. Instructions for use
6-1 How to use //
6-2 How to use // /
7. Notes for the product
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Table of Contents
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• Wide band of 36MHz, specially intended for exquisite KTV rooms and
classrooms.
• Preset 90 pairs of channels.
• One key sets two channels.
• Easy squelch adjustment from front panel.
• Both frequency and channel are adjustable.
1. Notes for system operations
2. Features
• Before connecting the power, check that the power requirement shown
on the unit is the same as the power output on the adaptor supplied.
• Do not leave the unit at where the humidity and temperature are high.
• Dry your hands before operating the system.
• Keep the unit away from re and heat source.
• Turn the volume to minimum at both the mixer and amplier before
setting up the system.

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3. Specications
3-1 UHF PLL dual-channel diversity receiver
Model
Frequency Oscillation
Mode Phase-locked loop (PLL)
Carrier Frequency Range 470~960 MHz
Remoset Frequency Ultrasonic
Diversity Antenna diversity
Bandwidth 36MHz
Signal/Noise Ratio >105dB(A)
Total Harmonic Distortion
(Thd) <0.6%@1KHz
Receiving Sensitivity -95dBm，S/N>80dB
Image Rejection Ratio >80 dB
Frequency Response 50Hz~16KHz±2dB
Antenna Type 1/2λ BNC detachable
Antenna Booster Power DC12~15V/100mA
Function Display By LCD / LED
Contents Of Display
Group, channel, frequency, battery level, antenna A/B, muting
level, AF indication, RF indication, channel scanning, output level
attenuation, volume indication
Control Functions Power, group, channel, frequency, muting level, button lock,
volume, output attenuation (XLR), channel scan (on/o)
Audio Frequency Output
Level
Ref：±22.5KHz Dev@1KHz Tone
ψ6.3 Phone Jack：-10dBV
XLR Jack：-4dBV(Line)、-24dBV(MIC)
Audio Frequency Output
Impedance 600Ω
Muting Noise muting and tone code locking
Output Port 2 x balanced XLR jack
1 x unbalanced ϕ6.3 jack
Power Supply 12~15V DC / 500mA
Dimension (Mm) 210mm (W) x 40mm (H) x 172mm (L)

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3-2 UHF PLL hand-held transmitter
Model
Frequency Oscillation Mode Phase-locked loop (PLL)
Carrier Wave Frequency Range 470~960 MHz
Remoset Frequency Ultrasonic
RF Power Output 10mW/50mW(as per local regulations)
RF Stability <±10KHz＠Fc
Modulation Frequency Shift ±48KHz
Harmonic Radiation <-50dBc
Functions Mute, auto o, sensitivity adjustment, low power indication
Display By LCD+LED
Controls Power, mute, group, channel, frequency, sensitivity
adjustment, auto o, button lock
Battery AA alkali battery or MiNH rechargeable battery x 2
Charging Yes
Dimension 51mm (W) x 269mm (H) x 26mm (L)
Model
Frequency Oscillation Mode Phase-locked loop (PLL)
Carrier Wave Frequency Range 470~960MHz
Remoset Frequency Ultrasonic
RF Power Output 10mW/50mW(as per local regulations)
RF Stability <±10KHz＠Fc
Modulation Frequency Shift ±48KHz
Harmonic Radiation <-50dBc
Functions Mute, auto o, input level attenuation, sensitivity
adjustment, low power indication
Display By LCD+LED
Input Port 4 pin Mini XLR
Controls Power, mute, group, channel, frequency, sensitivity
adjustment, input level attenuation, auto o
Battery AA alkali battery or MiNH rechargeable battery x 2
Charging Yes
Dimension 62mm (W) x 97mm (H) x 20mm (L)
3-3 UHF PLL body-pack transmitter

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3-4 Optional condenser microphone
Lavaliere microphone
Headset microphone
Model CM-501 CM-201i CM-125i
Connector 4-pin mini XLR 4-pin mini 4-pin mini XLR
Frequency Response 100~15,000 Hz XLR60~15,000 Hz 50~18,000 Hz
Polar Pattern Cardioid Omni-directivity
Sensitivity (at 1000Hz) -60 ± 3dB -60 ± 3dB -53 ± 3dB
Impedance 2.2K Ω 4.4K Ω
Max. SPL for 1% THD 130dB
Dimension (mm) Ø10.1mm (W) x
26.4mm (H)
Ø5mm (W) x
9mm (H)
Ø4mm (W) x
11mm (H)
Net Weight 21.5g 20.7g 7g (cable not included)
Model CM-214i CM-214Ui CM-214ULi
Connector 801C4
(4P Mini XLR) 4P Mini XLR
801C3 (3P Mini XLR)
801C4 (4P Mini XLR)
801CS (3.5 stereo plug)
Option
Connector
801C3 (3P Mini XLR)
801CS (3.5 stereo plug)
801CR
801CR
Frequency Response 60~15,000 Hz 30~18,000 Hz 100 ~ 18,000Hz
Polar Pattern Omni-directional Cardioid
Sensitivity (at 1000Hz) -60±3 dB -68±3 dB -65±3 dB
Impedance 1.8kΩ 680Ω 1.8kΩ
Max. SPL for 1% THD 130dB 120dB
Dimension(mm)
125mm(W) x
134mm(H)x
157mm(D)
205mm(W)x
134mm(H)x
157mm(D)
125mm(W)x
134mm(H)x
157mm(D)
Net Weight 32.9g 38.4g 18g (cable excluded)

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Ear-hook microphone
Model CM-235i CX-504
Connector 801C4 (4P Mini XLR ) 4P Mini XLR
Frequency Response 50~18,000 Hz 30~18,000 Hz
Polar Pattern Omni-directional Cardioid
Sensitivity (at 1000Hz) -53 ± 3dB -68 ± 3dB
Impedance 1.8kΩ 680Ω
Max. SPL for 1% THD 130dB 130dB
Dimension(mm)
155mm(W)x
134mm(H)x
157mm(D)
285mm(W)x
55mm(H)x
111.3mm(D)
Net Weight 17g (cable excluded) 56.3g
Model No CM-801 / CM-804i CM-8015 / CM-825i
Connector 801C4 (4P Mini XLR) 801C4 (4P Mini XLR)
Option Connector
801C3 (3P Mini XLR)
801CS (3.5 stereo plug)
801CR
801C3 (3P Mini XLR)
801CS (3.5 stereo plug)
801CR
Frequency Response 60~15,000 Hz 50~18,000 Hz
Polar Pattern Omni-directional Omni-directional
Sensitivity (at 1000Hz) -64±3 dB -53±3 dB
Impedance 1.8kΩ 1.8kΩ
Max. SPL for 1% THD 130dB 130dB

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Front panel Rear panel
4-1UHF PLL dual-channel diversity receiver //
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Power switch:short press to start up, long press for two seconds to shut down.
SET key:Keys to set the functions. Long press for two seconds to enter the setting
mode, press the“SET” key again to enter the setting of dierent functions.
▲/▼Keys to select functions: In the setting mode, press the ▲/▼key to adjust
function parameters. In the non-setting mode, press the ▲/▼key to set the output
volume.
LCD Screen
3 Digits Seven-Segment Display: Display current preset channels *01~*90, and the
group channels *91~*96.
Default preset channel selection key:For users to quickly set the preset channels.
Lock key:long press the“LOCK” key for two seconds to lock the function of key. Avoid
accidentally touch the setting.
button: For users to synchronize the setting set in the receiver with that
of the transmitter.
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811 12 1113 14 15
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4. Description of parts
No. 148, 9th Industry Road,
Ta-Li Industrial Park,
Taichung City, Taiwan, R.O.C.
JTS PROFESSIONAL CO., LTD.

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Power, indicator light: In the normal state, it serves as the power indica-
tor light (bright red). The display will show the following when carrying
out channel matching: , when transmitting data, the indica-
tor light will blink fast (green light); once the synchronization is done, it
will stop blinking. If synchronization fails after channel matching is car-
ried out for some time, the blinking rate of indicator light will slow down.
Ultrasonic transmitter unit:Transmit the content of setting as digital
data through the ultrasonic transmitter.
BNC Antenna base:Connect 50Ω BNC antenna and provide DC12 ~ 15V
/ 100mA as the booster power supply. It may be connected to an exter-
nal antenna amplier to increase the receiving distance.
6.3 mm PHONE JACK (MIXED):Unbalanced audio output socket.
XLR Male Socket (RX1):RX1 balanced audio output socket
XLR Male Socket (RX2):RX2 balanced audio output socket
DC power input socket:DC power input socket DC12~15V/500mA

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Screen Display
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5
2
1: audio signal strength
: RF signal strength
: Antenna Selection A / B
: Transmitter battery power
: Receiver (MUTE)
: Output attenuation (ATT.ON)
: Frequency
The following content is displayed in the non-setting mode:
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176
5

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Power: push to turn the transmitter on. When the transmitter is on, push and
hold for 2 seconds to turn it o.
Mute: while the transmitter is on, switch Mute up to talk and down to mute. If
the transmitter is o, switch the Mute up to turn the unit on. The transmitter
turns itself o automatically after 1, 10 or 30 minutes of muting depending on
setting.
Ultrasonic receiving unit: it receives pairing signals from the ultrasonic
transmission unit at the receiver end.
Battery holder: it holds UM3, AA 1.5V battery or rechargeable battery x 2.
LED indicator: it shows the transmitter’s status, including battery level, mute and
pairing indication.
LCD display: it shows the parameter settings in the transmitter.
SET: it allows parameter settings, including frequency, group, channel, sensitivity,
transmission power, auto o countdown and machine code.
▲/▼: these are used with “SET” to change the parameter settings.
: push and hold the “LOCK” button for 2 seconds to lock the buttons. Push and
hold again for 2 seconds to unlock.
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4-2 UHF PLL hand-held transmitter //
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Mute/Power: push once to turn the unit on. While the unit is on, push once to
mute and push again to talk. Push and hold for 2 seconds to turn o.
Ultrasonic receiving unit: it receives the pairing signals from the ultrasonic
transmission unit at the receiver end.
LED indicator: it shows the transmitter’s status, including battery level, mute
and pairing indication.
LCD display: it shows the parameter settings in the transmitter.
Antenna: the antenna of transmitter
Microphone input port: 4P mini XLR jack
SET: it allows parameter settings, including frequency, group, channel, sensitiv-
ity, input signal attenuation, auto o countdown, lock on and machine code.
▲/▼: these are used with “SET” to change the parameter settings.
Battery holder: it holds UM3, AA 1.5V battery or rechargeable battery x 2.
Charging contact: if rechargeable batteries are used, this transmitter can be
recharged with an optional charger.
Note: a user can also choose Auto power o with
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4-3 UHF PLL body-pack transmitter //
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4-4 Accessories
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2
AC/DC adaptor
Switching Power Supply(100V~240V , 50~60Hz)
AC IN: AC100~240V/50~60Hz
DC OUT: DC12V/0.5A
AF output cable (with Φ6.3 plug at both ends)
1 2
Clip
4 Pin Mini XLR
Windscreen
4-5 Optional Condenser Microphone
Lavaliere Microphone // CM-501 CM-201i CM-125i
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2
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CM-501 CM-201i CM-125i
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Option

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Headset Microphone // CM-214i CM-214Ui CM-214ULi CM-235i CX-504
Gooseneck
Adjustable headband
Headband
4 Pin Mini XLR
Windscreen
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CM-214i
CM-235i
CM-214Ui CM-214ULi
Standard :
4 Pin Mini XLR
3 Pin Mini XLR
3.5 Stereo Plug
CM-504

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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
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CM-801
CM-804i
CM-8015
CM-825i
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Option
Option
Option

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5. Connecting
5-1 How to connect the receiver
1.1 ：
(1) The XLR output jack or 6.3mm unbalance output jack can be selected
individually to connect the AF output to a mixer or amplier for volume
control.
(2) Switch the“Mixed”on the back to ON. This allows to mix the RX1 and RX2
signals to RX1’s 6.3mm non-balance output jack and then to a mixer or
amplier for volume control.
1. Connect the audio output of receiver to mixer or amplier
2.1. Connect the AC/DC adapter:
Check that the DC current and voltage ratings of the adapter match the
label on the unit. Connect the DC terminal to the “DC input” port on the unit,
and the AC end to an AC socket.
2.2. Set the parameters:
Turn the power on and set the parameters of receiver according to the
setting instructions.
Caution! Secure the power cable on the fastening hook of anti-pulling clip in
order to prevent the power cable from falling.
2.Connect the power
AC/DC adaptor
Step1
Step 2
No. 148, 9th Industry Road,
Ta-Li Industrial Park,
Taichung City, Taiwan, R.O.C.
JTS PROFESSIONAL CO., LTD.

15
5-2 Transmitter installation //
The Mute button on the hand-held unit also triggers the power-on. That’s why the
unit is on as soon as the batteries are replaced. Therefore, if you do not wish to turn on
after changing the batteries, keep the Mute switch on mute.
1. Unscrew the outer tube of the transmitter (Figure 1).
2. Place 2 AA batteries in the battery holder while make sure they are in the correct
polarities (Figure 2).
3. Screw the outer tube on (Figure 3).
4. To turn the unit on:
a. Push the power button to turn on (Figure 4a), or
b. Push the Mute switch up also to turn the unit on (Figure 4b).
5. Set the transmitter parameters according to the instructions.
1. Slide the battery holder cover downwards (Figure 1).
2. Place 2 AA batteries in the battery holder while make sure they are in the correct
polarities (Figure 2).
3. Slide the battery holder cover upwards to close (Figure 3)
4. According to the type of microphone, insert the 4-pin mini XLR jack in MIC IN to
complete the installation (Figure 4).
5. Push the Power button to turn the unit on (Figure 5).
6. Set the transmitter parameters according to the instructions.
Fig. 1
Fig. 1
Fig. 2
Fig. 2
Fig. 3
Fig. 3 Fig. 4 Fig. 5
Fig. 4a Fig. 4b

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6. Instructions for use
1. In the normal state, press the "Preset channel
button ▲/▼" to fast select the preset channels *
01 ~ * 96. (* are for bands 1 to 3, or groups A to E).
Quick setting icon: Preset channels are 01 to 90 and
group channels are 91 to 96.
Example 1:Preset channels for Band 1 and
Group 2 are shown as 102.
Example 2: Group B Channel 93 is shown
as b93.
Note: It is not recommended to mix the default
channel with the group channel.
2. Press "SET" for two seconds to enter
the setting mode, then press ▲/▼key
to select the relevant parameter to set
RX (receiver) or TX (transmitter).
◎FREQ Frequency setting
Set the frequency number that takes 1MHz
as the unit rst, and then set the frequency
number that takes 0.025MHz as the unit.
Take 1MHz as the unit Press▲/▼key to set
frequency
Take0.025MHz as the unit Press▲/▼key to set
frequency
◎ATT. Audio output attenuation(XLR)
At OFF Audio output without attenuation
At On Audio output attenuation 20dB
Parameter setting
Indicates that the function is turned on, and
the output attenuation is 20dB
6-1 How to use //
UHF PLL DUAL CHANNEL DIVERSI TY RECEIVE R
R -988 KB
Select RX Receiver
Preset channel▲/▼Key