Tengyue US-9031 Wireless Microphone User Manual

Receiver system: double conversion supersonic heterodyne
Frequency of intermediate frequency: first intermediate
frequency: 110MHz, second intermediate frequency: 10.7MHz

Wireless interface: BNC/50Q
Sensitivity: 12dBV (80dBS/N)

Sensitivity adjustment range: 12-32dBV
Spur suppression: ≥75dB

Maximum output level: +10dBV

Emitter Index

Antenna program: wearable emitter adopts 1/4 wavelength whip
antenna. Handheld microphone has built-in spiral antenna.

Output frequency: high frequency 30mW, low frequency 3mW
Spur suppression: -60dB

Power supply: two AA batteries
Service time:
- If it is 30mW, the time is more than 10 hours.
- If it is 3mW, the time is more than 15 hours.

Precautions

For the machine’s better performance, please read these
instructions carefully before use and learn about correct operation
methods.
Safety:
- As a safety precaution, during connection, please do not seize
  the cable for pulling. Instead, you should grasp the plug without
  hurting the power line to ensure safe operation.
- Only the power adapter offered by the native machine can be
  used, and also make sure that the power voltage coincides with the
  power adapter. It may damage the machine if you use the power
  adapter supplied by other suppliers.
- This machine uses 220VAC power voltage. Other voltage will
  cause fire and malfunction.
- Do not place the machine in high temperature, wet and dusty
  places, and avoid contact with liquid substances to prevent
  malfunction.
- Do not collide, cast, and vibrate the machine to prevent
  damage.
- Do not open, touch, and change the acceptor, emitter, and power
  adapter as there are no user-serviceable parts inside. The
  malfunction of the machine can only be fixed by the authorized
  repair center.
- During use, if any abnormal things are found, such as smoke and
  smells, please pull out the power adapter immediately and send the
  product to the authorized repair center for repairing.
- During battery installation, do not insert the battery in
  opposite and reverse way. If you don’t use the machine for a long
  time, please pull out the battery from the emitter.
- Do not use batteries with damaged shell or insulating materials
  in case of short circuit.
- If you leave the working machine for a long time, please turn
  off and pull out the power adapter.

Product Features

We use ultra high frequency (UHF) which has less interference
than VHF frequency band. Also, it is more reliable in
transmission.
DPLL digital phase lock loop multi-channel frequency synthesis
technology which within 500Hz bandwidth and 250KHz channel spacing,
offering as much as 200 channel options which is convenient for
several machines working simultaneously and easy to avoid various
interferences.
Even if the frequency between emitter and receiver is wrong,
automatic frequency technology can let the emitter begin automatic
track lock and adjust itself to be consistent with the receiver
frequency.

Frequently Asked Questions (FAQ)

1. Can I use a power adapter from a different supplier?

No, only the power adapter offered by the native machine can be
used to ensure proper functionality and avoid damage.

1. What is the service time of the emitter with different output
  frequencies?

If the output frequency is 30mW, the service time is more than
10 hours. If it is 3mW, the service time is more than 15 hours.

1. What should I do if I notice any abnormal things during use,
  such as smoke or smells?

If any abnormal things are noticed during use, immediately pull
out the power adapter and send the product to the authorized repair
center for repairing.

1. Can I change the acceptor, emitter, or power adapter
  myself?

No, these components should not be opened, touched, or changed
by the user. The machine has no user-serviceable parts inside, and
any malfunction can only be fixed by the authorized repair
center.

1. Can I leave the machine unused for a long time without turning
  off or pulling out the power adapter?

No, it is recommended to turn off and pull out the power adapter
if the machine will be left unused for a long time.

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System index
Frequency range: 530-580MHz Modulation system: broadband FM

Frequency stability: within 0.005%

Dynamic range: 1OOdB

Maximum frequency deviation: 45KHz

Audio frequency reponse: 80Hz-18KHz (3dB)

Comprehensive signal-to-noise ratio: >105dB

Comprehensive distortion: :,(0.5%

Operating temperature:-10 C–+40 C

Receiver index
Receiver system: double conversion supersonic heterodyne Frequency of intermediate frequency: the first intermediate frequency: 110MHz, the second intermediate frequency: 10.7MHz Wireless interface: BNC/50 Q Sensitivity: 12dB V (80dBS/N) Sensitivity adjustment range: 12-32 dB V Spur suppression: ?75dB Maximum output level:+1OdBV
Emitter index
Antenna program: wearable emitter adopts 1/4 wave length whip antenna. Handled microphone has built-in spiral antenna. Output frequency: high frequency 30mW, low frequency 3mW Spur suppression:-60dB Power supply: two AA batteries Service time: if it is 30mW, the time is more than 10 hours
if it is 3mW, the time is more than 15 hours

Precautions For machine’s better performance, please read these instructions care
fully before use and learn about correct operation methods.
Safety
.&As a safety precaution, during connection, please do not seize the cable for pulling. Instead, you should grasp the plug without hurting power line to ensure safe operation.
.&Only the power adapter which offered by native machine can be used, and also make sure that the power voltage coincide with power adapter. It may damage the machine if you use the power adapter supplied by other suppliers.
.&This machine uses 220VAC power voltage. Other voltage will cause fire and malfunction .
.&Do not place the machine in high temperature, wet and dusty places and approach liquid substance in case of malfunction .
.&Do not colide, cast and vibrate the machine in case of damage. .&Do not open, touch and change the acceptor, emitter and power adapter.
Because there are nothing can be change by user. The malfunction of the machine only can be fixed by the authorised repair centre.
p .&During use, any abnormal things are found, such as smoke and smells, please pull out the ower adapter im mediately and send the product to the authorised repair centre for repairing. .&During battery installation, do not insert the battery in opposite and reverse
way. If you don’t use the machine for long time, please pull out the battery from emitter. .&Do not use the battery with damaged shell of insulating materials in case of short circuit. .&If you leave the working machine for long time, please turn off and pull out the power adapter.
Product features
*We use ulrta high frequency (UHF) which has less interference than VHF frequency band. Also it is more reliable in transmission.
*DPLL digital phase lock loop multi channel frequency synthesis te chnology which within 500Hz bandwidth and 250KHz channel spacing, offering as much as 200 channel options which is convenient for serval machines working simultaneously and easy to avoid various interferences.
*Even if the frequency between emitter and receiver is wrong, automatic frequency technology can let the emitter begin automatic track lock and adjust itself to be consistent with the receiver frequency.
*We design a high and low power switching function especially, which offers fluent performance in assembly (high frequency emission).

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
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: — Reorient or relocate the receiving antenna. — Increase the separation between the equipment and receiver. — Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. — Consult the dealer or an experienced radio/TV technician for help.
Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment
The devices has been evaluated to meet general RF exposure requirement the device can be used in portable exposure condition without restriction