RF Transmitter/Reciver

[Luciano]

Hi Fredrick,

Are you living in a city area?
If not, it is possible that there is another transmitter within 500m?

Do you have an oscilloscope? If yes, try to see what do you get on the DATA pin
of the receiver when the transmitter is powered off.

See also these links:

LinxTechnologies.com Linx Knowledgebase - RF Modules - LR Series Long Range Wireless Communication Modules
The DATA line of the LR receiver seems to switch randomly when the transmitter is not on.
http://www.linxtechnologies.com/Supp...ation-Modules/

APPLICATION NOTE AN-00160
Considerations For Sending Data Over a Wireless Link
http://www.linxtechnologies.com/Documents/AN-00160.pdf

* * *

Before you test with the RF modules, make sure that your system works when the
two microcontrollers are connected with a 1k ohm resistor.
Make sure that the two PIC microcontrollers share the same ground. (GND).

PIC #1                 PIC #2
             1k
TX Pin-----/\/\/\------RX pin

GND -------------------GND

Best regards,


Luciano