Features:
- Use UHF520-690MHz frequency band to avoid interference frequency;
- Flexible and easy to operate;
- Automatic infrared frequency, so that the transmitter and the receiver automatically synchronize to send and receive;
- 200 channels with PLL frequency synthesis stabilization system;
- 4 groups of independent RF and IF systems with 4 independent high-gain antennas;
- The latest high frequency filter is used to filter out out-of-band interference signals to the maximum extent.
- High frequency circuit design with secondary frequency conversion, with extremely high sensitivity;
- Multiple squelch control circuit to reject external interference;
- Microphone uses dual boost design, battery power drop does not affect the transmission power
- Specially designed voice compression and expansion circuit greatly improves the signal-to-noise ratio.
- Unique circuit design, large dynamic, wide frequency response, low noise;
- Performance engineering, school broadcasting, public broadcasting, playground, and other remote operating environments;
- Working distance: more than 100m indoors and 260m outdoors;
Technical parameters:
|
System indicators |
|
|
Frequency range |
UHF 520-690MHz |
|
Modulation mode |
Broadband FM |
|
Adjustable range |
50MHz |
|
Number of channels |
2×100 |
|
Channel spacing |
250KHz |
|
Frequency stability |
Within ± 0.005% |
|
Dynamic range |
100dB |
|
Maximum frequency deviation |
±45KHz |
|
Frequency response |
80Hz-18Khz |
|
Integrated signal to noise ratio |
>105dB |
|
Integrated distortion |
≤0.5% |
|
Operating temperature |
-10℃～50℃ |
|
Working distance |
≤ 260m |
|
Receiver index |
|
|
Receiver mode |
Double frequency conversion superheterodyne |
|
Intermediate frequency |
110MHz,10.7MHz |
|
Sensitivity |
BNC/50Ω |
|
Wireless interface |
12dB μV(80dBS/N) |
|
Sensitivity adjustment range |
12-32dB μV |
|
Discrete suppression |
≥75dB |
|
Maximum output level |
+10dBV |
|
Power supply mode |
DC 12-18V 500mV input |
|
Transmitter indicators |
|
|
Antenna |
Built-in spiral antenna for handheld microphone, 1/4 wavelength whip antenna for on-hook |
|
Output Power |
High power 30 mW, low power 3mW |
|
Sound head |
Dynamic microphone |
|
Condenser (Lavalier, Headset) |
|
|
Discrete suppression |
≥60dB |
|
Power supply |
2 No.5 1.5V batteries |
|
Duration of use |
Approximately 10 hours for 30 mW and 15 hours for 3 mW |
|
Characteristics of sound quality |
The intermediate frequency is rich, the singing is relaxed, the voice has the magnetic sex appeal and the hoodlum thick feeling, belongs to the human voice microphone to hold the essence |
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