Speco MWHH-UHF User manual

Speco Technologies . 200 New Highway . Amityville . NY 11701
1-800-645-5516 . 631-957-8700 www.specotech.com
USER’S MANUAL
128 Frequency-Selectable
UHF WIRELESS MICROPHONE
SINGLE & DUAL CHANNEL SYSTEMS
MWR-100UHF
Single Channel UHF Receiver
MWR-200UHF
Dual Channel UHF Receiver
MWHH-UHF
Handheld UHF Transmitter
MWLP-UHF
Lapel UHF Transmitter

WIRELESS MICROPHONE SYSTEM
1. Introduction …………………………………………………………….….….…….……….…… 1
2. Safety ………………………………………………………………………………….………….……… 1
3. Environment ………………………………………………………………………………………... 1
4. Wireless Note….………………………………………….………………………………..……... 1
5. UHF Single and Dual Channel Receivers …………….……………………..…
5.1 Diagrams
5.2 Setting Up Receivers
5.3 Specifications and Features
2
6. Body Pack/Lapel Transmitting UHF Microphone..…..……………….…
6.1 Diagram
6.2 Specifications and Features
7
7. Handheld Transmitting Microphone …………………………………………...……
7.1 Diagram
7.2 Specifications and Features
7.3 Set Up
8
8. Battery Insertion and Recharging ………………………..………….…….…… 11
9. Trouble Shooting………………………………………………….…………………... 12
10. Antenna Connection…………………………………………………………………………..
11. Frequency/Channel Chart…………………………………………………………………
13
14
Table of Contents Page
Notes WIRELESS
Warranty Statement:
Speco Technologies offers a limited 2-year warranty on wireless
microphones. Please consult enclosed warranty card.

WIRELESS WIRELESS NOTE
1
FCC Statement
This device complies with part 15 of the FCC rules. Operation is subject to the following
two conditions: (1)This device may not cause harmful interference and (2) This device must
accept any interference received, including interference that may cause undesired
operation
Notice : The changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
IMPORTANT NOTE: To comply with the FCC RF exposure compliance requirements, no
change to the antenna or the device is permitted. Any change to the antenna or the device
could result in the device exceeding the RF exposure requirements and void user’s
authority to operate the device.
1. Introduction
Thank you for purchasing Speco Technologies’ 128 Frequency-Selectable UHF Wireless
Microphone System. This wireless microphone system operates in UHF band frequency
with synthesizer controlled. The system with 128 selectable frequencies via Phase
Locked Loop (PLL) circuitry makes it easy to choose non-interfered channels. (The numbe
r
of frequency channels depends on local regulations.) Please read this instruction manual
carefully before operating the system. This manual covers the function and operation of
the wireless microphone system.
2. Safety
 Do not spill liquid on the appliance and do not drop it on a hard concrete floor.
 Do not place the appliance near heat sources such as radiators, amplifier, or etc. Do
not expose it to direct sunlight, extremely dust, excessive moisture, or vibration.
 Take out the battery from transmitter, if the appliance will not be used for a long period
of time. This will avoid the damage resulting from a defective leaking battery
3. Environment
 Do not throw used batteries into a fire or garbage bin with domestic rubbish. Be sure
to dispose of used batteries in accordance with local waste disposal rules.
 When disposing the equipment, remove the batteries, separate the case, circuit
boards, and cables, and dispose of all components in accordance with local waste
disposal rules.
4. Wireless Note
 Before setting up, make sure that the transmitter and receiver are tuned to the same
frequency.
 Do not use two transmitters in the same frequency.
 Use good quality batteries to avoid the damage resulting from a defective leaking
battery.
 Turn the volume control on the receiver to adjust receiver output level to match input
level requirements of an audio mixer or amplifier.
 While checking sound, move the transmitter around the area where you use the system
to look for dead spots. If you find any dead spot, change the receiver position. If it
does not work, avoid such places.
 To avoid interference, do not put the receiver too near metal object and avoid
obstructions between transmitter and receiver.
 Avoid the interference from TV, radio, other wireless appliances and etc.
Frequency/Channel Chart WIRELESS

8V/80mA
DCOUT
ANT B
BALANCED
AUDIO OUTPUT
UNBALANCED DC ONLY
12V1A
SQUELCH UNBALANCED
AUDI O OU T PU T
BALANCED
SQUELCH DCONLY
12V1A
DCOUT
8V/80mA
ANTA
128 Frequency Selectable UHF Receivers WIRELESS
2
5. UHF Single and Dual Channel Receivers
5.1 128 Frequency-Selectable UHF Wireless Receivers
The MWR-100UHF and MWR-200UHF are wireless receivers both used with Speco
Technologies’ 128 selectable UHF frequencies transmitters -- the MWHH-UHF Handheld or
MWLP-UHF Lapel UHF transmitters (purchased separately).
MWR-100UHF 128 Frequency-Selectable Single Channel UHF Receiver
MWR-200UHF 128 Frequency-Selectable Dual Channel UHF Receiver
③
WIRELESS Antenna Connection
10. Antenna Connection
The antenna booster is highly recommended for long-distance purpose, such as in stadium
or in auditorium. By means of antenna holder, the antenna and booster can put wherever
you want. It is ideal design for multi-channel application. Antenna boosters are applied to
the receivers, which have detachable antennas.
UHF Antenna
Antenna Holder
Antenna Booster
A
ntenna holder makes it easy to fix wherever for connection antenna and booster. It can be
assembled on the mic stand or on the wall.
TNC female connector for connecting with
UHF antenna
TNC female connector for connecting with
cable or antenna booster (long distance
required)
Screw adapter to screw antenna holder on
a microphone stand.
Front
Back
Front
1
2
9
8
4
76
3
11
Back
12 13 14 15
1
2
8
7
6
10
11
12 14
13
15

5.1 Continued
3 12
1. Power: Turns the receiver on and off.
2. Channel +Button: Press this button to change channel forward.
3. Channel −Button: Press this button to change channel backward.
4. RF Level Indicators: Five LEDs per RF antenna channel glow to indicate RF
signal strength. The more LEDs that glow, the stronger the received signal. I
f
none of these LEDs glow, no signal is being received. (Shown on external LCD
for MWR-200UFH model)
5. AF Level Indicators: Five LEDs glow to indicate audio signal strength.
Green indicates normal operation. RED indicates approaching overload
condition. (Shown on external LSD for MWR-200UHF model)
6. Programmable Display: Can display channel number, frequency, RF level
and AF level indicators and/or volume.
7. Volume Level Control: This control increases the receiver output level to match
the input sensitivity of an audio mixer or an amplifier. .
8. DC OUT: Connect the supplied cable to the receiver and the microphone,
it takes around 10 hours to charge. Only nickel-MH batteries my be recharged.
9. Antenna Input Connector: TNC-type connectors provide connection to the
supplied antennas or to coaxial cable used with an antenna divider, antenna
boosters or remote antennas.
10. Antenna: Fixed-length UHF antenna permanently mounted on rear panel.
11. Balanced Output: 3-pin XLR connector provides balanced low-impedance
output
12. Unbalanced Output: 6.3ϕphone jack provides unbalanced low-impedance
output
13. Line/MIC Switch: Selects the XLR or ¼” Plug input
14. Squelch: The squelch adjusts the output level to suppress the noise. The
higher squelch control, the lower the sensitivity of the receiver and decrease the
service area of the system. Set the squelch to minimum before turning the
receiver on.
15. DC IN: Input connector for the supplied AC adapter.
128 Frequency Selectable UHF Receivers WIRELESS Troubleshooting WIRELESS
9. Trouble-shooting
Problem Solution
No sound  Check the power supply of the microphone and receiver.
 Check that the transmitter and receiver are tuned to the same
frequency.
 Check whether the hi-fi appliance is switched on and the receiver
output is connected to audio mixer or amplifier input.
 Check whether transmitter is too far away from receiver or
SQUELCH control set too high.
 Check whether receiver is located too near metal object or there
are obstructions between transmitter and receiver.
Sound interference  Check the antenna location.
 When using 2 or above microphone sets simultaneously, make
sure that the chosen frequencies are not interfered.
 Check whether the interference comes from other wireless
microphones, TV, radio and etc.
Distortion  Check the receiver volume level is set too high or too low.
 Check whether the interference comes from other wireless
microphones, TV, radio and etc.


  
MHz
 
FREQ.CH


or
 
CH
MHz
 
FREQ.


DCOUT
POWER
CHANNEL
CH
RF
AF
DCO UT
or
VOLUM E
WIRELESS Battery Insertion and Recharging
11 4
5.2 Setting Up Receivers
NOTICE: Two or above transmitters operating in the same frequency can not be used
at the same time and area, so please select the different frequencies which
can be used simultaneously at local area.
5.2.1 Connecting the receiver to power
 Plug the antennas into the TNC socket on the receiverand point them upward.The
MWR-200UHF comes with mounted antennas.
 Check that the voltage of the supplied AC adapter conforms to the voltage available
(AC110 or 220) in local area. Using the wrong AC adapter may cause irreparable
damage to the unit not covered by warranty.
 Plug the feeder cable of the supplied AC adapter into DC IN socket on the back of
receiver. Then plug the AC adapter into a power outlet.
5.2.2 Connecting the receiver to an audio mixer or an amplifier
In order to make sure the sound quality and avoid distortion, please adjust the volume
level according to following instructions.
 Make sure receiver volume is turned all the way down prior to turning unit on.
 When using a standard audio cable with 3-pin XLR connectors or 6.3ϕphone plugs to
plug into the MIC IN on the audio mixer or on the amplifier, please push the Volume
Button on the receiver to 20 (approx.) volume level, the output level for balanced and
unbalanced output is about at 77mV.
 When using a standard audio cable with 3-pin XLR connectors or 6.3ϕphone plugs to
plug into the LINE IN on the audio mixer or on the amplifier, please push the Volume
Button on the receiver to 32 volume level, the output level for unbalanced and
balanced output is about at 770mV.
 Switch Line/Mic Selector Switch to appropriate designation.
Caution: Never use the balanced and unbalanced audio outputs at the same time!
This may cause signal loss or increased noise.
5.2.3 Selecting UHF Frequencies on Receiver
 Turn receiver unit on and select frequencies by pushing the up/down buttons on
face or unit. These buttons are positioned next to the “Channel” designation. Each
number frequency will represent a frequency between 740-752mHz.
5.2.4 Adjusting Squelch Control on Back of Receiver
 Squelch controls may be adjusted by carefully turns the small squelch dials on the
back of the receiver to alter drop out zones when system is in use. The squelch
adjusts the output level to suppress the noise. The higher squelch control, the
lower the sensitivity of the receiver and decrease the service area of the system.
Set the squelch to minimum before turning the receiver on.
128 Frequency Selectable UHF Receivers WIRELESS
8. Battery Insertion and Charging Connecting Diagram
WARNING: ONLY NICKEL-NH BATTERIES MAY BE
USED WHEN RECHARGING (Sold Separately)
Connect the supplied DC1.5 cable to the receiver and the microphone, and it takes
around 10 hours to charge. The LED of transmitter is flashing all the time when charging.
8.1 Inserting batteries into the handheld / bodypack transmitter
 Open the battery cover and insert batteries into the battery compartment conforming
to the polarity (+)(-) marks. The transmitter can not work with incorrectly inserted
batteries.
 When push the ON/OFF switch to “ON” to switch the power on, LCD shows battery
power level. If it displays insufficient power, the inserted rechargeable batteries can
be charged by using the supplied DC plug cable directly connection to DC out on the
receiver and charging input on the transmitter. It should take up to 10 hours for
charging.
 Close the battery cover.

5 10
Handheld UHF Microphone WIRELESS
11
11
128 Frequency Selectable UHF Receivers WIRELESS
5.3 Specifications
MWR-100UHF
Professional UHF Single Channel, Diversity PLL Receiver
(For use with Speco Technologies’ MWHH-UHF & MWLP-UHF)
Features
FCC Compliant
128 Frequency-selectable for interference- free usage
Frequency Range: 740-752MHz
LCD display with channel, frequency and volume readings
RF and AF meter indicators on front panel
Squelch adjustment control
A
bility to recharge MWHH-UHF/MWLD-UHF microphones from receiver
Balanced XLR and unbalanced ¼” outputs
Connecting cable with XLR – XLR connectors included
Removable TCN-type coaxial cable antennas
Receiver dimensions: 8.5” w x 1.75” H x 6.5” D
Mounting brackets included
Specifications
Frequency Range: UHF 740-752MHz
Oscillator: PLL synthesized
Receiving Mode: Single channel, diversity
Frequency Stability: ±0.005%
Receiving Sensitivity: At 8dBuV over 80dB S/N ratio
Image & Spurious Rej.: 80dB minimum
Selectivity: > 50dB
Modulation Mode: FM
IF Frequency :1st: 56MHz, 2nd: 10.7MHz
Dynamic Range: > 96dB
Tone Signal: 32.768KHz
S/N Ratio: > 94dB, at 48KHz deviation
and 60dBuV antenna input
A
F Response: 50Hz to 15KHz (±3dB)
Power Supply :12 VDC
T.H.D.: < 1% (at 1 KHz)
LCD Display: Channel, frequency and volume level
Current Consumption: 500mA ± 10mA
Dimension: 8.5” w x 1.75” H x 6.5” D
Specifications
Power Output: 10mW (max.)
Oscillator: PLL synthesized
Frequency Stability: ±0.005%
Maximum Deviation: ±48KHz with limiting compressor
Spurious Emission: >60dB below carrier frequency
T.H.D.: <1.0% (at 1KHz)
Power Supply: DC1.5V x 2AA rechargeable or dry batteries
Tone Key: 32.768KHz
Mic Unit: Uni-directional electret condenser unit
Dimensions 2.5” x 11” H
Current Consumption: 115mA ± 10mA
7.3 Setting up the MCHH-UHF Handheld or MCLP-UHF
Lapel/Bodypack transmitter
A
. Connecting a UHF Handheld or Lapel microphone
 Open the battery cover. Push the MIC/LINE switch to “MIC” and use the supplied screw-
driver to adjust the GAIN at appropriate position.
 While cover open, use up and down channel buttons to select a frequency.
 Close battery cover.
 Plug the mini XLR connector of the microphone cable into the audio input connector on
the bodypack transmitter.
 Switch the transmitter and hi-fi appliances (amplifier, tape deck etc.) power on.
 Make sure the receiver unit is set to the same frequency. Check chart at the end of
manual for frequency listings.
 Test the microphone and adjust the levels on your audio mixer or amplifier.
7.2 MCHH-UHF Handheld UHF Microphone Specs and Features
FCC Compliant
128 Frequency-selectable for interference- free usage
Frequency Range: 740-752mHz
Uni-directional, electret condenser handheld microphone
LCD display with channel and battery life readings
A
bility to be recharge with MWR-100/200UHF receivers
Dimensions: 2.5” W x 11” H

9 6
128 Frequency Selectable UHF Receivers WIRELESS
MWR-200UHF
Professional UHF Dual Channel, Diversity PLL Receiver
(For use with Speco Technologies’ MWHH-UHF & MWLP-UHF)
Features
FCC Compliant
128 Frequency-selectable for interference- free usage
Frequency Range: 740-752MHz
LCD display with channel, RF and AF readings
Squelch adjustment control for each channel
A
bility to recharge MWHH-UHF/MWLD-UHF microphones from receiver
Balanced XLR and unbalanced ¼” outputs
Connecting cable with XLR – XLR connectors included
Receiver dimensions: 16.5” w x 2” H x 7” D
Mounting brackets included
Specifications
Frequency Range: UHF 740-752MHz
Oscillator: PLL synthesized
Receiving Mode: Single channel, diversity
Frequency Stability: ±0.005%
Receiving Sensitivity: At 8dBuV over 80dB S/N ratio
Image & Spurious Rej.: 80dB minimum
Selectivity: > 50dB
Modulation Mode: FM
IF Frequency :1st: 56MHz, 2nd: 10.7MHz
Dynamic Range: > 96dB
Tone Signal: 32.768KHz
S/N Ratio: > 94dB, at 48KHz deviation
and 60dBuV antenna input
A
F Response: 50Hz to 15KHz (±3dB)
Power Supply :12 VDC
T.H.D.: < 1% (at 1 KHz)
LCD Display: Channel, RF and AF readings
Current Consumption: 500mA ± 10mA
Dimension: 8.5” w x 1.75” H x 6.5” D
WIRELESS Handheld Microphone Unit
1. Grille: Protects the microphone capsule and helps reduce breath sounds and wind
noise.
2. Programmable Display: Displays channel number and battery power level
3. On/off Switch: Turns transmitter power on and off.
4. Battery Compartment: Insert two AA dry or rechargeable batteries into the
compartment and make sure that the polarity of batteries is correct.
5. Channel +Button: Press this button to change channel forward.
6. Channel −Button: Press this button to change channel backward.
7. Battery Cover: Unscrew to expose battery compartment and channel selector.
8. Color Clip: This color clip helps to identify the frequency for multi-channel operation.
9. Charging Input: The inserted rechargeable batteries are charged by using the
supplied DC-plug cable connection to DC out on the receiver. It takes up to 10 hours fo
r
charging.
7.1 Handheld Microphone
The handheld microphone operates in UHF band frequency with PLL synthesized control.
UHF 128 preprogrammed selectable frequencies to avoid interference. (The number of
frequency channels depends on local regulations.) Use 1.5V x 2 AA size dry or rechargeable
batteries for cost-saving and environmental protection.
1
2
9
8
4 5 6
MCHH-UHF
3

7 8
WIRELESS Body Pack / Lapel Microphone Unit
6.1 Bodypack/Lapel Transmitte
r
The bodypack transmitter operates in UHF band frequency with PLL synthesized control.
UHF 128 preprogrammed selectable frequencies to avoid interference. Use 1.5V x 2 AA size
dry or rechargeable batteries for low operating cost.
1. On/Off Switch: Turns transmitter power on and off.
2. Mini XLR Connector: The included electret lapel microphone is inserted into the
connector on transmitter.
3. Programmable Display: Displays channel number and battery power level
4. Mic/Line Selector: The switch sets the audio input either to microphone level or line
level.
5. Antenna: Permanently connected, helical antenna.
6. Channel +Button: Press this button to change channel forward.
7. Channel
−Button: Press this button to change channel backward.
8. Gain: The rotary control adjusts the sensitivity of the transmitter’s audio to the level of
the connected lapel microphone or instrument.
9. Mic Unit: The uni-directional electret condenser unit features the wide frequency
response for warm, rich bass and clear sound.
10. Tie Clip: To clip on the tie or lapel for free-movement.
11. Cable: With mini XLR connector cable to connect the transmitter.
12. Battery Compartment: Insert two AA dry or rechargeable batteries into the
compartment and make sure that the polarity of batteries is correct.
13. Charging Input: The inserted rechargeable batteries are charged by using the supplied
DC-plug cable connection to DC out on the receiver. It takes up to 10 hours for charging.
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
13
12
11
6.2 Body/Pack Lapel Specifications
MWLP-UHF
Professional UHF Frequency-Selectable PLL Lapel Microphone
FCC Compliant
128 Frequency-selectable for interference free usage
Frequency Range: 740-752MHz
Uni-directional, electret condenser lapel microphone
Mini XLR connection to lapel microphone cord
Belt Clip for fastening
LCD display with channel and battery life readings
Gain control dial
A
bility to be recharge with MWR-100/200UHF receivers
Dimensions: 2.5”w x 4” H x 1” D
Specifications
Power Output: 10mW (max.)
Oscillator: PLL synthesized
Frequency Stability: ±0.005%
Maximum Deviation: ±48KHz with limiting compressor
Spurious Emission: >60dB below carrier frequency
T. H . D . : <1.0% (at 1KHz)
Power Supply: DC1.5V x 2AA rechargeable or dry batteries
Tone Key: 32.768KHz
Mic Unit: Uni-directional electret condenser unit
Dimensions 2.5” x 11” H
Current Consumption: 115mA ± 10mA
WIRELESS Body Pack / Lapel Microphone Unit
MWLP-UHF
10