RF Tranceiver Help Plz...

Wireless & IoT
1

Hi all! Great forum! I need your help guys please!! Im really stumped!

Here is my setup: Im using a remote board with Radiometrix RF transmitter and receiver. The datasheets for them can be found here :

http://www.radiometrix.co.uk/dsheets/tx2arx2a.pdf

At the PC side i have a nRF905 RS232 tranceiver unit:

http://www.mpfreezone.com/downloads/fil … al1.22.pdf

On my remote board i receive GPS data. I would like to Manchester encode the data and send it to the tranceiver at PC side. This does not pose to be such a big problem,

HOWEVER

The tranceiver unit at PC side has built-in CRC, Address and Preamble capabilities. All said and done i encode my data at remote side, include a

chosen crc, address and preamble and send it away, but i dont know the crc, address or preamble of the tranceiver unit! I am correct in saying that

if these 3 don’t match, nothing much is going to happen!

ANY advice as to how to get these values from the tranceiver unit?

This is my first RF project and im really still learning, but the problem seems simple enough.

Thank you all for helping a stranger!! :lol: :lol:

2

Forgetting the link up and running, I would not use the manchester encoding. For short range work and testing, it may add another level of uncertainty. I would start sending just a few bytes and, with success, build up from there.

Ron

3

Thnx alot, but i was just informed that the nRF905 cannot speak to any other module except another nRF905… yay…