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| Categories | UHF Wireless Microphone | 
|---|---|
| Brand Name: | GESTTON | 
| Model Number: | AM500 | 
| Certification: | CE ROHS FCC | 
| Place of Origin: | Guangdong, China | 
| MOQ: | 10 | 
| Price: | Negotiate | 
| Payment Terms: | T/T, Western Union | 
| Supply Ability: | 10000 sets/month | 
| Delivery Time: | 3-7 days | 
| Packaging Details: | Carton Box | 
| Max. Deviation Range: | ±45KHz | 
| Preset Channels: | 32 preset channels | 
| Sensitivity: | 6dBμV, S/N>60dB at 25 deviation | 
| Band Width: | 30MHz | 
| S/N: | >105dB | 
| Power Supply: | 100-240V/AC50/60 Hz, 10W | 
Rugged Metal Chassis With Soft-Touch Controls UHF Wireless Microphone Design For Big Events
Receiver Parameter
| Main Frame Size | EIA-Standard 19" 1U | 
| Channels | Dual Channel | 
| Frequency Stability | ±0.005%, Phase Lock Loop frequency control | 
| Carrier Frequency Range | UHF 510-937 MHz ( country dependent ) | 
| Preset Channels | 32 preset channels | 
| Operating Range | 90M typical ( in open space) | 
| Oscillation | PLL synthesized | 
| Sensitivity | 6dBμV, S/N>60dB at 25 deviation | 
| Band Width | 30MHz | 
| Max. Deviation Range | ±45KHz | 
| S/N | >105dB | 
| T.H.D. | <0.7% @ 1KHz | 
| Frequency response | 45Hz~18KHz±1dB | 
| Squelch | “PiloTone & NoiseLock” dual-squelch circuit | 
| Power Supply | 100-240V/AC50/60 Hz, 10W | 
| Weight | 2.7KG | 
| Dimension | 482(W) X 454(H) X 186(D) (mm) | 
| Output Connector | XLR balanced & 6.3φ phone jack unbalanced | 
Transmitter Parameter (Handheld)
| Carrier Frequency Range | UHF 510-937 MHz ( country dependent ) | 
| Oscillation | PLL synthesized | 
| Harmonic radiation | <-63dBm | 
| Bandwidth | 120MHz | 
| Max. Deviation Range | ±45KHz | 
| Input Connector | 4-pin mini-XLR connector | 
| RF Power Output | 3~30mW ( country dependent ) | 
| Battery | AA X 1 alkaline | 
| Current Consumption | 60mA, typical | 
| Battery Current / Life | Min. 10 hours | 
| Dimension | 72(H) X 68(W) X 21(D) (mm) | 
| Weight | 71g ( w/o battery) | 
Receiver Features
· Rugged metal chassis with soft-touch controls.
· (Chinese / English) bilingual menu operation;
· Up to 80 simultaneous channels;
· Handheld or bodypack transmitter can be switched freely for each channel;
· True diversity provides the most effective elimination of dropouts.
· Pilot tone squelch for eliminating RF interference when transmitter is turned off.
· Enhanced AF frequency range
· Built-in spectrum analyzer to auto scan and select a clear channel.
· Transmitter Sync.
· Pure aluminum alloy side plate design.
· 600 selectable frequencies, 32 preset clean channels
· OLED display screen delivers a bright, clear viewing in day/night environments.
· Equipped with both XLR balanced and Ø6.3mm unbalanced outputs.
· Offers an exceptional value in both performance and price, for both working musicians and sound installers.
Transmitter Features
· All rugged metal die-cast construction.
· The microphone head is sperate to change other brand microphone head if needed
· 120MHz ultra-wide bandwidth.
· Array antenna design for signal stability.
· Extremely low handling noise.
· Infrared automatic transmitter sync.
· Very easy and quick to use thanks to OLED display
· 2 x AA batteries – up to 10 hours continue use.

Products Supply Scope
Application
Suitable for Large-scale performances ,small and medium-sized performances, outdoor singing and speeches, KTV boxes, classrooms, gymnasiums, offices and government agencies


The core components of condenser microphone are diaphragm and backplane, which form a parallel plate capacitor, as shown in the picture below.Among them, the diaphragm is flexible, which will displace under the action of acoustic pressure, and the back plate is rigid with perforation design.
Why are there perforations on the back plate?
This is because when the microphone size is small, the air gap between the back plate and the diaphragm will produce film damping, which will limit the frequency response bandwidth of the microphone. Therefore, many acoustic perforations need to be set on the back plate to reduce film damping.
However, the increase of acoustic holes will reduce the stiffness of the back plate and make the back plate "soften".
If the stiffness of the back plate is reduced to the same order of magnitude as the diaphragm, it will seriously affect the performance of the microphone. Therefore, the stiffness of the back plate should be large. You can increase the stiffness of the back plate by thickening the back plate.
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