Embedded software: wireless microphone control software V1.05
Feature:
* Single display dual channel.
* The receiver uses advanced PLL phase-locked loop and microcomputer CPU control system and is compatible with manual frequency selection and automatic infrared frequency locking.
* The receiver system adopts high performance speech companding technology to provide perfect sound quality.
* Support 6 sets of 12 frequencies being used at the same zone without interference with each other.
* Applicable to classrooms and conference rooms, etc.
Specification:
System |
|
Frequency range |
640-690M |
Oscillation mode |
Phase-locked loop frequency synthesis(PLL) |
Number of channel |
200 |
Frequency response |
50-15KHz (±2dB) |
Working distance |
50M on open space |
Frequency interval |
250 KHz |
Carrier wave stability |
±10PPm≤10KHz |
Image interference ratio |
>80dB |
SNR |
>105dB(1KHz-A) |
Sensitivity |
-105dBm(12dB S/N AD) |
THD |
0.5% (ref. ±40KHz deviation. 1KHz tone) |
Muted method |
Muted and sound code locked loop |
Receiver |
|
Display |
LCD display |
Working temperature |
-10℃+ 60℃ (not battery operating temperature) |
Case |
Galvanized cold-rolled plate |
Audio output level |
Unbalanced 600Ω, load -2 dBV |
Output impedance |
Unbalanced 600Ω |
Unbalanced output |
TRS 6.35mm connector |
Power supply |
DC 12V ---1A |
Size |
420×180×41(mm)(L×W×H) |
Weight |
1.48 Kg(excluding antenna) |
Microphone |
|
Frequency range |
640-690M |
Output power |
High power 30mW |
Harmonic radiation |
<-55dBc |
Maximum deviation |
±70KHz |
Maximum input sound pressure |
140dB SPL |
Oscillation mode |
FM PLL frequency synthesis |
Frequency adjustment |
Automatic locking and manual adjustment of receiver working channels |
Battery |
2 AA 1.5V batteries |
Weight |
0.32Kg(hand-held), 0.04Kg(lapel),(excluding battery) |
Size |
249(L)×35(D) (hand-held),109(L)×64.3(W) ×21(H) (lapel) |