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Wireless Conference microphone
MC840

MC840 one for four wireless conference microphone

Product serial number
UHF band makes fewer interference compared with the conventional VHF band and more reliable transmission;
MC840
Product description
Parameters

UHF band makes fewer interference compared with the conventional VHF band and more reliable transmission;
DPLL multi-channel and frequency synthesis technology provides up to 200 channel selection within interval of 250KHZ within the range of 50MHZ and satisfies simultaneous operation of multiple sets and keep away interference;
The advanced frequency pairing technology automatically locks and adjusts the frequency by only one press if the frequencies of the transmitter and the receiver are not paired and operation is convenient;
High-end LCD makes working status of the receiver and the transmitter clear; the wireless conference transmission system is powered by 2 pieces of AA batteries and hi-alkali battery lasts longer.

The conference desktop, handheld, clip and head-mounting are optional.

Specifications and parameters
System indexes 
Range of frequency: 740-790MHz
Modulating mode: FM
Range of adjustment: 50MHz
Channel number: 200
Channel interval: 250KHz 
Frequency stability: ±0.005%
Dynamic range: 100dB
Maximum frequency deviation
Audio response: 80Hz-18KHz(±3dB)
Total SNR: >105 dB
Total distortion: ≤0.5%
Operating temperature: -10℃ -+40 ℃

 

 
 
 
 
 
 
 

Receiver index
Receiver mode: secondary conversion super heterodyne
Intermediate frequency: first frequency: 100MHz; second 10.7MHz
Wireless interface: BNC/50Ω
Sensitivity: 12dBμV (80DbS/N)
Range of sensitivity: 12-32 dBμV
Spurious suppression: >75dB
Maximum output level: +10dBV

Transmitter index
Wireless mode: wearing transmitter 1/4 wavelength whip antenna, handheld microphone built-in helix antenna
Output power: high power 30mW; low power 3mW
Spurious suppression: -60dB
Power supply: 2 pieces of AA batteries 
Duration: more than 8 hours at 30mW; more than 12 hours at 3mW

Up to 5 sets (20 conference transmitter) modulating methods under the same space and the same frequency band:
Set 1: 1, 55, 121 and 174
Set 2: 4, 58, 130 and 183
Set 3:  9, 63, 137, 190
Set 4: 16, 70, 142, 195
Set 5: 25, 79, 145, 198

Intermodulation interference may be caused if the frequency is not set properly.

Telecommunication channels and frequency range:
CHANNAL  A : 0-49 FREQUENCY: 740.000MHZ-752.250MHZ
CHANNAL  B : 50-99 FREQUENCY: 752.500MHZ-764.750MHZ
CHANNAL  C : 100-149 FREQUENCY: 765.000MHZ-777.250MHZ
CHANNAL  D :  150-199 FREQUENCY: 777.500MHZ-789.750MHZ

MC840 receiver size chart
 
 
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Contact Us

Contact person: Miss. Liang
Tel:86-139 2909 6789
Email:michelle@mcmyk.com
Add:No.2, zone F, private capital and foreign capital development zone, Enping  City, Guangdong Province
WhatsApp:+8613929096789
Q Q:1512779682
Service hotline:86-750-7371838
Fax:86-750-7371839

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