Dorji RF Receiver Problem

Thread Starter

Taban

Joined Jul 5, 2013
2
Hil all, i have a problem with Dorji Rf Receiver. My transmitter sends data in 53 second period but i cant receive them. I am taking rubbish signals. When i connect data pin to scope. I am seeing a screen like that

DSC_0574.jpg

I connected transmitter to logic analyzer and i saw data, it sends data well.

Bit rate is 1024 Hz.

My receiver's datasheet is here :

http://www.wiltronics.com.au/datasheets/DORJI/RF-DRA886RX.pdf

In addition. I cant see any data at logic analyzer.

It is my RF receiver module an connections like below:

All yellow cables go to ground and green one is Vcc and orange cable is data cable. I connect it to scope or PIC directly.

DSC_0587.jpg

What should i do ?

Thanks for help
 

bertus

Joined Apr 5, 2008
22,270
Hello,

A breadboard is not suitable for RF.
The stray capacities of the breadboard will destroy all the RF signal.

The following PDF will give you information on RF prototyping:
rf_proto-1.pdf

Bertus
 

upand_at_them

Joined May 15, 2010
940
But he's not using the breadboard for RF, only the data which is 1024 Hz.

Double check your connections, Tarban. You've got some fundamental mistake. Are you pulling the CS line low? Does it need a pullup so that it has a clean falling edge?

It's not an RF issue.
 
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