Better Music Builder VM-92U User manual

Passionate about Music
www.BetterMusicBuilder.com
TM
®
Professional UHF Wireless Microphone System
VM-92U
Operating Instructions
Thank you for purchasing this
unit. To make full and effective
use of this unit, please read this
Owner's Manual carefully
before operating it. After
reading this manual, retain this
booklet together with the
Warranty Card for future use
in case of maintenance or
troubleshooting.
ANTENNA-BANTENNA-A POWER
UHF 32 CHANNEL SELECTABLE DIGITAL LCD DISPLAY
AF RF
CH04:807.10 mhz
UP
SET
SET
DOWN
MAXMIN
AF RF
CH24:813.10 mhz
UP
SET
SET
DOWN
MAXMIN
Channel A Volume Channel B Volume
24
8 13.10
CH MHZ
16 CHANNEL SELECTABLE
VM-92U
Better Music Builder
®
TM
UHF
UHF MIC WIRELESS SYSTEM VM-92U
Better Music Builder
®
TM

2
CONTENTS
FOREWORD & MODEL SETUP SPECIFICATION........................................ 2
RECEIVER SPECIFICATION...................................................................... 3
RECEIVER DESCRIPTION...................................................................... 4
HOW TO CONNECT AUDIO OUT...........................................................5
UHF WIRELESS SYSTEM CHART...............................................................5
DC-POWER CONNECTION.................................................................... 6
OPTIONAL FOR 19” RACK MOUNT KIT...................................................6
HANDHELD TRANSMITTER SPECIFICATION............................................. 7
HOW TO INSERT HANDHELD TRANSMITTER’S BATTERIES........................8
HOW TO TURN ON & OFF HANDHELD TRANSMITTER............................ 9
HOW TO ADJUST RECEIVER SETTINGS................................................. 10
OPERATING HANDHELD FREQUENCY DISPLAY DIAGRAM.................... 11
OPERATING RECEIVER FREQUENCY DISPLAY DIAGRAM................. 12~13
TECHNICAL SPECIFICATION................................................................. 14
CAUTION............................................................................................ 15
VM-92U FCC FREQUENCY 750 MHz and 800 MHz...............................16
FREQUENCY SCAN GROUPS FOR BAND C & BAND D......................... 17
US UHF WIRELESS OPERATING FREQUENCIES................................18~19
FOREWORD
Thank you for purchasing our company’s product VM-92U. This
product is designed using America’s most advanced audio technology
up to date.
The system has the characteristic as follows:
1. Working frequency range: UHF520-810MHz (tunable)
2. CPU control: PLL frequency compose technique)
3. CPU controlled true diversity system for advance break up and
receiver control of left and right channels
4. LCD (Liquid Crystal Display) screen
5. Transmitter and receiver audio system for high-pass, low-pass &
band-pass filter technique to avoid noise and keep sound quality
MODEL SETUP SPECIFICATION
1. Install two antennas to the antenna socket A & B of the rear panel, the
direction between them should be adjusted about 90°.
Do not install in too firmly or it may damage your system’s
antenna output. (Your warranty may be terminated if you damage the
system like this.)
2. Insert the DC power to the rear panel of your system.
Only use a DC 13~15V DC power, if you use any other power
voltage other than DC 13~15V you may damage the system. Your
warranty may be terminated if you damage it like this.
3. Turn on the power button that the LCD screen will be on.
4. Adjust the receiver’s status to your liking.
5. Turn off power the LCD screen will automatically shut off.
NOTE
NOTE

RISK OF ELECTRIC SHOCK
DO NOT OPEN
Taking apart or modifying the
receiver may lead to electric shock,
fire, or damage to the receiver and
will void your warranty.
UNBALANCED
A & B
MIX OUTPUT DC-POWER
DC 13~15V 600mA
Channel AChannel B
Model No. VM-92U (UHF Microphone)
CALIFORNIA, UNITED STATES OF AMERICA
COMMENTS? E-MAIL: [email protected]
www.BetterMusicBuilder.com
ENGINEERED AND DESIGN IN U.S.A.
FCC: 74.861
SERIAL NO.
AC POWER
AC~120V 60Hz 35W
CAUTION
0 36120060908-22 3
Better Music Builder
®
TM
UHF 32 CHANNEL SELECTABLE DIGITAL LCD DISPLAY
POWERANTENNA-A ANTENNA-B
AF RF
CH04:807.10 mh z
UP
SET
SET
DOWN
MAXMIN
AF RF
CH24:813.10 mh z
UP
SET
SET
DOWN
MAXMIN
VM-92U
Channel A Volume Channel B Volume
Better Music Builder
®
TM
21 4 93 5 8 1076
1312 14 15 16
3
RECEIVER SPECIFICATION
A. NAMES & FUNCTION:
Front Panel:
1. Receiver Antenna Input-A. (Channel A) BNC Socket.
2. Receiver A LCD screen: Channel A with 16 Built-In Channels with
different UHF frequencies.
3. DOWN button selects different frequency & model settings (Receiver A)
4. UP button selects different frequency & model settings (Receiver A)
5. Volume control (Receiver A)
6. Power button On/Off.
7. Receiver B LCD screen: Channel A with 16 Built-In Channels with
different UHF frequencies.
8. DOWN button selects different frequency & model settings (Receiver B)
9. UP button selects different frequency & model settings (Receiver B)
10. Volume control (Receiver B)
11. Receiver Antenna Input-B. (Channel B) BNC Socket.
Rear Panel:
12. Channel B XLR 3M socket balanced audio output 50Hz~15kHz +/-3dB.
13. Channel A & B 1/4-inch (6.3 mm) jack socket unbalanced audio output,
mixed channel A & B.
14. Channel A XLR balanced audio output 50Hz~15kHz +/-3dB.
15. Power supply dock with removable IEC cable 13~15V 600mA.
16. 120V 60Hz 35W AC-Power Plug.

4
RECEIVER DESCRIPTION
SETTING UP YOUR RECEIVER:
1. The package has two antennas, a receiver, two microphones and one
DC power adaptor.
2. Screw the antennas BNC socket into the back panel of the receiver
and turn it in clockwise to lock it as shown in the following diagram.
You can adjust the antennas into different angles for receiving good
signals.
Receiving
Antenna:
2 Units
Receiver: 1 Set
DC Power
Adapter: 1 Unit
Audio Cable (for mixed out): 1 Unit
Handheld Transmitter: 2 Set
24
8 13.10
CH MHZ
16 CHANNEL SELECTABLE
9V Battery: 2 Units
9 V
ALKALINE
BATTERY
9 V
ALKALINE
BATTERY
AC Power Cable (6 feet): 1 Unit
United States (2M) to IEC (F)
UHF
UHF MIC WIRELESS SYSTEM VM-92U
Better Music Builder
®
TM
UNBALANCED
A & B
MIX OUTPUT DC-POWER
DC 13~15V 600mA
Channel AChannel B
Model No. VM-92U (UHF Microphone)
CALIFORNIA, UNITED STATES OF AMERICA
COMMENTS? E-MAIL: [email protected]
www.BetterMusicBuilder.com
ENGINEERED AND DESIGN IN U.S.A.
FCC: 74.861
SERIAL NO.
AC POWER
AC~120V 60Hz 35W
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
Taking apart or modifying the
receiver may lead to electric shock,
fire, or damage to the receiver and
will void your warranty.
0 36120060908-22 3
Better Music Builder
®
TM

5
UNBALANCED
A & B
MIX OUTPUT DC-POWER
DC 13~15V 600mA
Channel AChannel B
Model No. VM-92U (UHF Microphone)
CALIFORNIA, UNITED STATES OF AMERICA
COMMENTS? E-MAIL: [email protected]
www.BetterMusicBuilder.com
ENGINEERED AND DESIGN IN U.S.A.
FCC: 74.861
SERIAL NO.
AC POWER
AC~120V 60Hz 35W
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
Taking apart or modifying the
receiver may lead to electric shock,
fire, or damage to the receiver and
will void your warranty.
0 36120060908-22 3
Better Music Builder
®
TM
UNBALANCED
A & B
MIX OUTPUT DC-POWER
DC 13~15V 600mA
Channel AChannel B
Model No. VM-92U (UHF Microphone)
CALIFORNIA, UNITED STATES OF AMERICA
COMMENTS? E-MAIL: [email protected]
www.BetterMusicBuilder.com
ENGINEERED AND DESIGN IN U.S.A.
FCC: 74.861
SERIAL NO.
AC POWER
AC~120V 60Hz 35W
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
Taking apart or modifying the
receiver may lead to electric shock,
fire, or damage to the receiver and
will void your warranty.
0 36120060908-22 3
Better Music Builder
®
TM
HOW TO CONNECT AUDIO OUT
There are three different connectors as shown in the following diagram:
• Connector 1 is a channel B XLR-balanced audio out
• Connector 2 is a mixed audio output (Channel A and Channel B)
• Connector 3 is a channel A XLR-balanced audio out
Connector 1 (Channel B) is a balanced XLR audio signal. If you connect B to
the mixer or amplifier, then you can control the microphone effect on MIC. B
only.
Connector 2 is an unbalanced 1/4 audio signal. If you connect to Connect 2
(1/4), both MIC. A and MIC. B will mix together to produce the same signal.
If you want to produce different effects on MIC. A and MIC. B, you need to
connect to XLR (Connector 1), which is equivalent to channel B, and XLR
(Connector 3), which is equivalent to channel A. You can also adjust different
echo or mic. tone effects on each microphone (i.e. MIC. A and MIC. B).
Connector 3 (Channel A) is a balanced XLR audio signal. If you connect A to
the mixer or amplifier, then you can control the microphone effect on MIC. A
only.
UHF WIRELESS SYSTEM CHART
Audio Mixer Amplifier or a Karaoke Unit Input terminal
XLR
Balance Input
XLR
Balance Input
XLR
Balance Input
XLR
Balance Input
1/4"
Unbalance Input
1/4"
Unbalance Input
1/4"
Unbalance Input 1/4"
Unbalance Input
Rear View Balance Connection
Channel A Handheld Transmitter
24
8 13.10
CH MHZ
16 CHANNEL SELECTABLE
Channel B Handheld Transmitter
24
8 13.10
CH MHZ
16 CHANNEL SELECTABLE
NOTE
1 2 3

UNBALANCED
A & B
MIX OUTPUT DC-POWER
DC 13~15V 600mA
Channel AChannel B
Model No. VM-92U (UHF Microphone)
CALIFORNIA, UNITED STATES OF AMERICA
COMMENTS? E-MAIL: [email protected]
www.BetterMusicBuilder.com
ENGINEERED AND DESIGN IN U.S.A.
FCC: 74.861
SERIAL NO.
AC POWER
AC~120V 60Hz 35W
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
Taking apart or modifying the
receiver may lead to electric shock,
fire, or damage to the receiver and
will void your warranty.
0 36120060908-22 3
Better Music Builder
®
TM
6
DC-POWER CONNECTION
If you use 220V to 240V, you must make sure to use a right adaptor,
otherwise, it would damage your system. Our warranty does not cover this.
OPTIONAL FOR 19” RACK MOUNT KIT
If you want to put this system onto a mount-kit, please follow the below
diagram. Our design has this special feature to allow it rack mountable, so
it can be removable.
Rear View
120V AC DC-13~15V 600mA adaptor
19 inches
NOTE
ANTENNA-BANTENNA-A POWER
UHF 32 CHANNEL SELECTABLE DIGITAL LCD DISPLAY
AF RF
CH04:807.10 mhz
UP
SET
SET
DOWN
MAXMIN
AF RF
CH24:813.10 mhz
UP
SET
SET
DOWN
MAXMIN
Channel A Volume Channel B Volume
VM-92U
Better Music Builder
®
TM

7
16 CHANNEL SELECTABLE
HANDHELD TRANSMITTER (Wireless Mic.) SPECIFICATION
NAMES & FUNCTION:
Uncover Looking of the Handheld Transmitter:
1. Condenser and grille.
2. LCD digital display.
3. “ ▲ ” or “ ▼ ” buttons: Adjustment buttons to select channels.
4. Battery dock: insert 1x9V battery or rechargeable battery into the battery slot,
putting battery’s polarity on different ends may damage system and your
warranty may be terminated if damage does occur because of it.
5. Power switch: To turn on press and hold the power button located on the
bottom cap of the transmitter for 2-3 seconds, until the LCD screen is on. To
turn off press and hold the power button until LCD screen is off.
4
5
POWER
9 V
ALKALINE
BATTERY
32
16 CHANNEL SELECTABLE
1

8
HOW TO INSERT HANDHELD TRANSMITTER’S BATTERIES
1. Twist open battery cover. Use one hand to hold onto the top of your
transmitter, use the other hand to twist out your transmitter’s handle.
2. Use one hand to hold onto the top of your transmitter, with your other
hand slide one 9V battery into battery slot. Becareful not to drop
transmitter while inserting battery.
Make sure that you insert the battery at the right electric poles, as shown in
picture.
3. Twist back battery cover.
9 V
ALKALINE
BATTERY
16 CHANNEL SELECTABLE
16 CHANNEL SELECTABLE
16 CHANNEL SELECTABLE
16 CHANNEL SELECTABLE
9 V
ALKALINE
BATTERY

9
HOW TO TURN ON AND OFF HANDHELD TRANSMITTER
Press and hold power button to turn on/off your transmitter.
When on transmitter’s LCD screen will have display,
when off transmitter’s LCD screen will be off.
HOW TO CHANGE HANDHELD TRANSMITTER SETTINGS
Selecting Transmitter’s Channel/Frequency
1. Press the “ ▲ ” UP & “ ▼ ” DOWN buttons to select
Channel/Frequency.
2. 16-selectable channels/frequencies for high
communication efficiency.
3. Please make sure to match the same
channel/frequency as that of the receiver.
POWER
16 CHANNEL SELECTABLE

10
NOTE
HOW TO ADJUST RECEIVER SETTINGS
You can adjust your receiver’s channel/frequency by pressing the “UP”
button to select your frequency.
You can adjust your receiver’s channel/frequency by pressing the “DOWN”
button to select your frequency.
Turn “VOLUME” button to adjust your vocal volume.
If you or anyone do any damage on any part of the receiver either
accidentally or intentionally, we have the right to void your warranty.
UHF 32 CHANNEL SELECTABLE DIGITAL LCD DISPLAY
AF RF
CH04:807.10 mh z
UP
SET
SET
DOWN
MAXMIN
Channel A Volume
UHF 32 CHANNEL SELECTABLE DIGITAL LCD DISPLAY
AF RF
CH04:807.10 mh z
UP
SET
SET
DOWN
MAXMIN
Channel A Volume
UHF 32 CHANNEL SELECTABLE DIGITAL LCD DISPLAY
AF RF
CH04:807.10 mh z
UP
SET
SET
DOWN
MAXMIN
Channel A Volume

11
Channel 01 = UHF Frequency 806.20 mhZ
Changing Channel Changing Channel
Channel 02 = UHF Frequency 806.50 mhZ
Changing Channel Changing Channel
Channel 03 = UHF Frequency 806.80 mhZ
Changing Channel Changing Channel
Channel 04 = UHF Frequency 807.10 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 807.40 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 807.70 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 808.00 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 808.30 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 808.60 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 808.90 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 809.20 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 809.50 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 809.80 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 810.10 mhZ
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing Channel
Changing ChannelChanging Channel
Channel 01 = UHF Frequency 810.40 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 810.70 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 811.00 mhZ
Changing Channel
Channel 01 = UHF Frequency 811.30 mhZ
Changing Channel
Channel 01 = UHF Frequency 811.60 mhZ
Changing Channel
Channel 01 = UHF Frequency 811.90 mhZ
Changing Channel
Channel 01 = UHF Frequency 812.20 mhZ
Changing Channel
Channel 01 = UHF Frequency 812.50 mhZ
Changing Channel
Channel 01 = UHF Frequency 812.80 mhZ
Changing Channel
Channel 01 = UHF Frequency 813.10 mhZ
Changing Channel
Channel 01 = UHF Frequency 813.40 mhZ
Changing Channel
Channel 01 = UHF Frequency 813.70 mhZ
Changing Channel
Channel 01 = UHF Frequency 814.00 mhZ
Changing Channel
Channel 01 = UHF Frequency 814.30 mhZ
Changing Channel
Channel 01 = UHF Frequency 814.60 mhZ
Changing Channel
Channel 01 = UHF Frequency 814.90 mhZ
Changing Channel
Channel 01 = UHF Frequency 815.20 mhZ
Changing Channel Changing Channel
Channel 01 = UHF Frequency 815.50 mhZ
Changing Channel Changing Channel
OPERATING HANDHELD FREQUENCY DISPLAY DIAGRAM
Current channel display depends on LCD display:
01
806.20
CH MHZ

12
AF RF
CH01:806.20 mh z
Channel A
Microphone A Set
Group A = UHF Frequency 806.20 mhZ
Changing Channel 01 Changing Channel
Group A = UHF Frequency 806.50 mhZ
Changing Channel 02 Changing Channel
Group A = UHF Frequency 806.80 mhZ
Changing Channel 03 Changing Channel
Group A = UHF Frequency 807.10 mhZ
Changing Channel 04 Changing Channel
Group A = UHF Frequency 807.40 mhZ
Changing Channel 05 Changing Channel
Group A = UHF Frequency 807.70 mhZ
Changing Channel 06 Changing Channel
Group A = UHF Frequency 808.00 mhZ
Changing Channel 07 Changing Channel
Group A = UHF Frequency 808.30 mhZ
Changing Channel 08 Changing Channel
Group A = UHF Frequency 808.60 mhZ
Changing Channel 09 Changing Channel
Group A = UHF Frequency 808.90 mhZ
Changing Channel 10 Changing Channel
Group A = UHF Frequency 809.20 mhZ
Changing Channel 11 Changing Channel
Group A = UHF Frequency 809.50 mhZ
Changing Channel 12 Changing Channel
Group A = UHF Frequency 809.80 mhZ
Changing Channel 13 Changing Channel
Group A = UHF Frequency 810.10 mhZ
Changing Channel 14 Changing Channel
Group A = UHF Frequency 810.40 mhZ
Changing Channel 15 Changing Channel
Group A = UHF Frequency 810.70 mhZ
Changing Channel 16 Changing Channel
Group A = UHF Frequency 811.00 mhZ
Changing Channel 17 Changing Channel
Group A = UHF Frequency 811.30 mhZ
Changing Channel 18 Changing Channel
Group A = UHF Frequency 811.60 mhZ
Changing Channel 19 Changing Channel
Group A = UHF Frequency 811.90 mhZ
Changing Channel 20 Changing Channel
Group A = UHF Frequency 812.20 mhZ
Changing Channel 21 Changing Channel
Group A = UHF Frequency 812.50 mhZ
Changing Channel 22 Changing Channel
Group A = UHF Frequency 812.80 mhZ
Changing Channel 23 Changing Channel
Group A = UHF Frequency 813.10 mhZ
Changing Channel 24 Changing Channel
Group A = UHF Frequency 813.40 mhZ
Changing Channel 25 Changing Channel
Group A = UHF Frequency 813.70 mhZ
Changing Channel 26 Changing Channel
Group A = UHF Frequency 814.00 mhZ
Changing Channel 27 Changing Channel
Group A = UHF Frequency 814.30 mhZ
Changing Channel 28 Changing Channel
Group A = UHF Frequency 814.60 mhZ
Changing Channel 29 Changing Channel
Group A = UHF Frequency 814.90 mhZ
Changing Channel 30 Changing Channel
Group A = UHF Frequency 815.20 mhZ
Changing Channel 31 Changing Channel
Group A = UHF Frequency 815.50 mhZ
Changing Channel 32 Changing Channel
OPERATING RECEIVER (CHANNEL A) FREQUENCY
DISPLAY DIAGRAM

13
Group B = UHF Frequency 806.20 mhZ
Changing Channel 01 Changing Channel
Group B = UHF Frequency 806.50 mhZ
Changing Channel 02 Changing Channel
Group B = UHF Frequency 806.80 mhZ
Changing Channel 03 Changing Channel
Group B = UHF Frequency 807.10 mhZ
Changing Channel 04 Changing Channel
Group B = UHF Frequency 807.40 mhZ
Changing Channel 05 Changing Channel
Group B = UHF Frequency 807.70 mhZ
Changing Channel 06 Changing Channel
Group B = UHF Frequency 808.00 mhZ
Changing Channel 07 Changing Channel
Group B = UHF Frequency 808.30 mhZ
Changing Channel 08 Changing Channel
Group B = UHF Frequency 808.60 mhZ
Changing Channel 09 Changing Channel
Group B = UHF Frequency 808.90 mhZ
Changing Channel 10 Changing Channel
Group B = UHF Frequency 809.20 mhZ
Changing Channel 11 Changing Channel
Group B = UHF Frequency 809.50 mhZ
Changing Channel 12 Changing Channel
Group B = UHF Frequency 809.80 mhZ
Changing Channel 13 Changing Channel
Group B = UHF Frequency 810.10 mhZ
Changing Channel 14 Changing Channel
Group B = UHF Frequency 810.40 mhZ
Changing Channel 15 Changing Channel
Group B = UHF Frequency 810.70 mhZ
Changing Channel 16 Changing Channel
Group B = UHF Frequency 811.00 mhZ
Changing Channel 17 Changing Channel
Group B = UHF Frequency 811.30 mhZ
Changing Channel 18 Changing Channel
Group B = UHF Frequency 811.60 mhZ
Changing Channel 19 Changing Channel
Group B = UHF Frequency 811.90 mhZ
Changing Channel 20 Changing Channel
Group B = UHF Frequency 812.20 mhZ
Changing Channel 21 Changing Channel
Group B = UHF Frequency 812.50 mhZ
Changing Channel 22 Changing Channel
Group B = UHF Frequency 812.80 mhZ
Changing Channel 23 Changing Channel
Group B = UHF Frequency 813.10 mhZ
Changing Channel 24 Changing Channel
Group B = UHF Frequency 813.40 mhZ
Changing Channel 25 Changing Channel
Group B = UHF Frequency 813.70 mhZ
Changing Channel 26 Changing Channel
Group B = UHF Frequency 814.00 mhZ
Changing Channel 27 Changing Channel
Group B = UHF Frequency 814.30 mhZ
Changing Channel 28 Changing Channel
Group B = UHF Frequency 814.60 mhZ
Changing Channel 29 Changing Channel
Group B = UHF Frequency 814.90 mhZ
Changing Channel 30 Changing Channel
Group B = UHF Frequency 815.20 mhZ
Changing Channel 31 Changing Channel
Group B = UHF Frequency 815.50 mhZ
Changing Channel 32 Changing Channel
OPERATING RECEIVER (CHANNEL B) FREQUENCY
DISPLAY DIAGRAM
AF RF
CH01:806.20 mh z
Channel B
Microphone B Set

14
TECHNICAL SPECIFICATION
A. SYSTEM FEATURE:
1. Channel: 16
2. Frequency Range: 780MHz~850MHz (Selectable)
3. Frequency Stabilization: < ±30ppm
4. Dynamic Range: More than 90dB
5. Total Harmonic Distortion: Less than 0.5%
6. Audio Frequency Response: 40Hz~15KHz ±3dB
7. Audio Output Level: Balance Output: 0~±400mV
Unbalance Output: 0~±200mV
8. Receiver Dimensions (WxHxD): 15x1.77x7.28 (inches)/38x4.5x18.5 (cm)
9. Handheld Transmitter Dimensions (WxH): x1.97x10.1 (inches)/5x25.6 (cm)
10. Receiver Net Weight: 5 lbs / 2.27 kg
11. Handheld Transmitter Net Weight: 1 lbs / 0.45 kg (1 Unit)
12. Shipping Weight: 10 lbs / 4.54 kg
B. TECHNOLOGICAL FEATURE OF THE TRANSMITTER:
1. Transmitter Power: 8.5mW
2. Max Deviation: ±25KHz
3. Adjustment Mode: FM, F3F
4. Spurious Emission: > 40dB (with carrier)
5. Continuous Using: 6 hour (GP) 1604s 9V battery
6. Battery: 9V Battery
7. Noise Control: perfectness circuit for eliminating noises
C. TECHNOLOGICAL FEATURE OF THE RECEIVER:
1. Signal/Noise Ratio: More than 90dB
2. Image & Spurious Rejection: More than 80dB
3. Border Upon Channel Rejection: More than 80dB
4. Receiving Sensitivity: Less than 10dBuV
5. DE-Emphasis: 50us
6. DC-Power: 13~15V DC
7. Work Current: 600mA
8. AC-Power: 120V 60Hz 35W
THIS SYSTEM INCLUDES THE FOLLOWING
Receiver: 1 Set
Handheld Transmitter: 2 Set
9V Battery: 2 Units
Antenna: 2 Units
DC-Power Adapter: 1 Unit
AC-Power Cable: 1 Unit
Audio Connecting Cable: 1 Unit
Instructional Manual: 1 PC

15
Caution: To reduce the risk of electrical shock, do
not remove the cover (or back). No user serviceable
parts inside: refer servicing to qualified personnel.
Warning: To reduce the risk of fire or electrical
shock, do not expose this appliance to rain or
moisture.
This symbol, wherever it
appears, alerts you to the
presence of uninsulated
dangerous voltage inside the
enclosure voltage that may be
sufficient to constitute a risk of
shock.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This symbol, wherever it
appears, alerts you to
important operating and
maintenance instructions in
the accompanying literature.
Read the manual.
CAUTION
1. When the receiver is on, the red light repeatedly flash on the transmitter, it
means that the receiver or the transmitter is damaged, please send to the
manufacturer.
2. If you are using several systems, please change the frequency carefully, to
avoid interfering with other signals.
3. The input power voltage of receiver’s outside power is 200V (±10%), it may
effect the receiver if it is lower or higher than the given rate.
4. When inserting the battery into the transmitter, avoid putting the polarity in an
opposite direction, or it may be damaged. (If damage occurs because of this
your warranty may be terminated)
5. When selecting sensitivity of the receiver, the least figure you should select
should be 15dB, or the signal will be worse in a further distance.

16
TV Ch.
VM-92U FCC Frequency 750 MHz
TV Ch.
VM-92U FCC Frequency 800 MHz
Receiver Frequency Transmitter Frequency
1 750.025 000
2 752.800 001
3 753.575 002
4 754.350 003
5 755.125 004
6 755.900 005
7 756.675 006
8 757.450 007
9 758.225 008
10 759.000 009
11 759.775 00A
12 760.550 00B
13 761.325 00C
14 762.100 00D
15 762.875 00E
16 763.650 00F
Receiver Frequency Transmitter Frequency
1 785.025 000
2 785.825 001
3 786.625 002
4 787.425 003
5 788.225 004
6 789.025 005
7 789.825 006
8 790.625 007
9 791.425 008
10 792.225 009
11 793.025 00A
12 793.825 00B
13 794.625 00C
14 795.425 00D
15 796.225 00E
16 797.025 00F
VM-92U FCC FREQUENCY 750 MHz and 800 MHz

17
Band C
Band C Scan Group 1 Band C Scan Group 2 Band C Scan Group 3
TV Ch. Frequency – MHz * TV Ch. Frequency – MHz * TV Ch. Frequency – MHz *
25 (None) 0 25 541.500 1 25 541.500 1
26 542.750 26 542.750 26 542.125
26 545.500 26 544.375 26 543.500
26 547.125 26 544.750 26 544.000
26 547.375 4 26 545.750 26 546.250 4
27 549.750 26 547.500 5 27 548.250
27 550.375 27 (None) 0 27 549.750 2
27 550.625 3 28 554.250 28 555.750
28 557.250 28 556.125 28 556.625
28 557.500 28 557.500 28 558.250
28 559.250 28 559.375 4 28 559.375 4
28 559.500 4 29 560.000 29 560.125
29 562.000 29 561.875 29 561.500
29 563.375 29 562.250 29 564.000
29 563.625 3 29 563.250 29 564.250 4
30 566.000 29 565.500 5 30 566.125 1
30 566.250 2 30 566.000 1
Band D
Band D Scan Group 1 Band D Scan Group 2 Band D Scan Group 3
TV Ch. Frequency – MHz * TV Ch. Frequency – MHz * TV Ch. Frequency – MHz *
44 655.500 1 44 655.875 1 44 655.500
45 658.000 45 656.250 44 655.750 2
45 658.375 45 658.500 45 656.625
45 659.250 45 659.750 45 658.500
45 659.500 45 660.000 45 658.750
45 661.500 5 45 660.500 5 45 659.500 4
46 662.375 46 664.375 46 662.750
46 662.750 2 46 665.500 2 46 665.250 2
47 669.625 47 671.625 47 671.250
47 671.750 2 47 672.000 2 47 672.375
48 674.750 48 674.000 47 673.125 3
48 675.750 48 674.500 48 674.125
48 676.125 48 675.750 48 674.500
48 678.000 48 676.750 48 675.375
48 678.250 48 678.250 5 48 678.625
48 679.500 6 49 680.250 1 48 679.125 5
49 (None) 0 49 (None) 0
* Number of wireless frequencies in TV Channel.
FREQUENCY SCAN GROUPS FOR BAND C & BAND D

18
Band C: 541.500 - 566.375 MHz
TV Ch.
25 --- --- --- --- 541.500 541.625 541.750 541.875
26 542.000 542.125 542.250 542.375 542.500 542.625 542.750 542.875
26 543.000 543.125 543.250 543.375 543.500 543.625 543.750 543.875
26 544.000 544.125 544.250 544.375 544.500 544.625 544.750 544.875
26 545.000 545.125 545.250 545.375 545.500 545.625 545.750 545.875
26 546.000 546.125 546.250 546.375 546.500 546.625 546.750 546.875
26 547.000 547.125 547.250 547.375 547.500 547.625 547.750 547.875
27 548.000 548.125 548.250 548.375 548.500 548.625 548.750 548.875
27 549.000 549.125 549.250 549.375 549.500 549.625 549.750 549.875
27 550.000 550.125 550.250 550.375 550.500 550.625 550.750 550.875
27 551.000 551.125 551.250 551.375 551.500 551.625 551.750 551.875
27 552.000 552.125 552.250 552.375 552.500 552.625 552.750 552.875
27 553.000 553.125 553.250 553.375 553.500 553.625 553.750 553.875
28 554.000 554.125 554.250 554.375 554.500 554.625 554.750 554.875
28 555.000 555.125 555.250 555.375 555.500 555.625 555.750 555.875
28 556.000 556.125 556.250 556.375 556.500 556.625 556.750 556.875
28 557.000 557.125 557.250 557.375 557.500 557.625 557.750 557.875
28 558.000 558.125 558.250 558.375 558.500 558.625 558.750 558.875
28 559.000 559.125 559.250 559.375 559.500 559.625 559.750 559.875
29 560.000 560.125 560.250 560.375 560.500 560.625 560.750 560.875
29 561.000 561.125 561.250 561.375 561.500 561.625 561.750 561.875
29 562.000 562.125 562.250 562.375 562.500 562.62 5562.750 562.875
29 563.000 563.125 563.250 563.375 563.500 563.625 563.750 563.875
29 564.000 564.125 564.250 564.375 564.500 564.625 564.750 564.875
29 565.000 565.125 565.250 565.375 565.500 565.625 565.750 565.875
30 566.000 566.125 566.250 566.375 --- --- --- ---
US UHF WIRELESS OPERATING FREQUENCIES
Avoid using same frequencies as TV channels or other radio signals for better performance.

19
Band D: 655.500 - 680.375 MHz
TV Ch.
44 --- --- --- --- 655.500 655.625 655.750 655.875
45 656.000 656.125 656.250 656.375 656.500 656.625 656.750 656.875
45 657.000 657.125 657.250 657.375 657.500 657.625 657.750 657.875
45 658.000 658.125 658.250 658.375 658.500 658.625 658.750 658.875
45 659.000 659.125 659.250 659.375 659.500 659.625 659.750 659.875
45 660.000 660.125 660.250 660.375 660.500 660.625 660.750 660.875
45 661.000 661.125 661.250 661.375 661.500 661.625 661.750 661.875
46 662.000 662.125 662.250 662.375 662.500 662.625 662.750 662.875
46 663.000 663.125 663.250 663.375 663.500 663.625 663.750 663.875
46 664.000 664.125 664.250 664.375 664.500 664.625 664.750 664.875
46 665.000 665.125 665.250 665.375 665.500 665.625 665.750 665.875
46 666.000 666.125 666.250 666.375 666.500 666.625 666.750 666.875
46 667.000 667.125 667.250 667.375 667.500 667.625 667.750 667.875
47 668.000 668.125 668.250 668.375 668.500 668.625 668.750 668.875
47 669.000 669.125 669.250 669.375 669.500 669.625 669.750 669.875
47 670.000 670.125 670.250 670.375 670.500 670.625 670.750 670.875
47 671.000 671.125 671.250 671.375 671.500 671.625 671.750 671.875
47 672.000 672.125 672.250 672.375 672.500 672.625 672.750 672.875
47 673.000 673.125 673.250 673.375 673.500 673.625 673.750 673.875
48 674.000 674.125 674.250 674.375 674.500 674.625 674.750 674.875
48 675.000 675.125 675.250 675.375 675.500 675.625 675.750 675.875
48 676.000 676.125 676.250 676.375 676.500 676.625 676.750 676.875
48 677.000 677.125 677.250 677.375 677.500 677.625 677.750 677.875
48 678.000 678.125 678.250 678.375 678.500 678.625 678.750 678.875
48 679.000 679.125 679.250 679.375 679.500 679.625 679.750 679.875
49 680.000 680.125 680.250 680.375 --- --- --- ---
Avoid using same frequencies as TV channels or other radio signals for better performance.

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