1. usingUHFUltra-high frequency band, more than traditionalVHFThere is less interference in the frequency band and more reliable transmission.
2. DPLLDigital phase-locked loop multichannel frequency synthesis technology, in50MHzWithin the frequency bandwidth,250KHzChannel spacing, providing up to200channel selection,Convenient to use multiple machines at the same time, easily avoiding all kinds of interference.
3. Advanced automatic frequency matching technology, even if the frequencies of the transmitter and receiver are confused, you only need to press it lightly, and the transmitter will automatically track the receiver frequency and adjust it to the same level. It is easy to use.
4. The special high and low power switching function allows you to use it smoothly not only in gatherings and other activity venues (high-power transmission), but also in schools such as school classrooms,KTVSave battery power when used in private rooms (low-power transmission).
5. The unique transmitter and receiver are equipped with locking function to prevent erroneous operation.
6. The special receiving sensitivity adjustment function can adjust the sensitivity as needed to improve anti-interference capabilities or increase receiving distance.
7. High-end LCD screen makes the working status of the receiver and transmitter clear at a glance 。
Technical parameters:
Frequency range:640-690MHz
debug mode : BroadbandFM
adjustable range ：50MHz
number of channels ：200
Channel spacing:250KHz
Frequency stability:±0.005%within
Dynamic range:100dB
Maximum frequency deviation:±45KHz
Audio response:50Hz-18KHz (-3dB)
comprehensive signal-to-noise ratio S/N ratio：105dB
comprehensive distortion THD：0.5%
Working temperature: minus Celsius10degrees to Celsius40degrees
receiver
Receiver method: Secondary conversion superheterodyne
if frequency
First Intermediate Frequency: 110MHz
Second Intermediate Frequency: 10.7MHz
Wireless connection:BNC/50Ω
Sensitivity:12dBuV (80dBS/N)
Spurious suppression:75dB
Maximum output level:+10dBV
transmitter
Output power: High power10mW low power3mW
Spurious suppression: -60dB
Power supply: two sectionsAA battery
Usage time:10mW shall be greater than10hours
3mW shall be greater than15hours
