AVR-Chat

Hi,
 
anyone is interested in 2.4GHz analog type RF modules ?
2 types:  audio-only & audio-video.
(note:  Europe's #1 or #2 electronic giant will put in their new models.  Asia's top-5
          audio makers using in their wireless speakers).
(note:  already CE approved)
 
audio-only module price:   1 pc = US$35 / pc      5 pc = US$30 / pc     10 pc = US$27 / pc
(100 pc,   1,000 pc  price negotiable)
 
Spec as follows:
 
Audio-only modules:
 
2.4G Technology       
      
Wireless 2.4GHz Audio Module    Transmitter : AU-TX1020  
    Receiver : AU-RX1020  
      
TECHNICAL SPECIFICATION      
Parameter   Specification   
Transmit Frequency   2.4GHz(2400MHz) ISM band   
   2.4000 to 2.4835 GHz   
   No license required   
Transmit Power   10mW   
No. of simultaneous transit frequencies   Up to 4 units in same area   
 Channel 1  2414.5 MHz   
 Channel 2  2434.5 MHz   
 Channel 3  2450.5 MHz   
 Channel 4  2468.5 MHz   
Channel selection   Slide/Rotary switch channel select   
Audio modulation type   FM modulation   
   left/right subcarriers   
Range of operation   0 to 100 meters   
   through walls and floors   
No. of audio channel   Stereo (left and right)   
Audio performance specification      
   Frequency response   50 Hz to 22KHz  ��3dB   
   Signal to noise ratio    �r48dB @ 25 meters   
    �r45dB @ 100 meters   
   Channel separation    �r52dB (left to right channel isolation)   
   Total harmonic distortion noise   ��1%   
   Phase response   Linear phase maintains Pro-logic signal   
Audio interface      
   Transmit left and right input   Unbalance, high impedance 1Vp-p   
   Receive left and right output   Unbalance, high impedance 1Vp-p   
Muting   High   
Power TX     
   Operating voltage   5 VDC   
   Current (typical)   220mA   
Power RX     
   Operating voltage   5 VDC   
   Current (typical)   180mA   
Operating temperature   0 ~ 60�Jambient temperature   
This specification is subject to change without prior notice.      

 
 
Thanks !
 
Jo Zeng
Tel: 852-9159-8489 (HK, China)
 
 
 
 
 
 
 
 
 
 
 
 

jeronimoavelar <jeronimoavelar@yahoo.com.br> wrote:

Hi List ,
I am with a request of a client to construct 20 small terminals
(keypad + lcd 16x2 ) using microcontrollers conected to a central 
server via a low-cost wireless link (simultaneous use). 
What kind of multinode radio link do you suggest to use? 
Is there any one using zigbee that could tell something about it?
Thanks in advance ,
Jeronimo.





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