Signal is very poor and receive data don't match what I send

Giuseppe pezzella

Other Parts Discussed in Thread: CC1101

finally it work...uff.!!

I have used first typical setting configuration of Smart RF studio [GENERIC 868MHz DATA RATE: 1.2kBaud Dev: 5.2KHz Mod:GFSK BW: 58KHz]

What is strange is that at 20cm I see this on SmartRF: very lowwww signal

byte PaTabel[8] = {0xC2 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00}; // 10dB

Moreover I transmit number from 1 to 8 and receive 032132232332432532632732

Any idea ?

I'm using RF1100SE module

over 8 years ago

0 TER over 8 years ago

TI__Guru**** 317180 points

From what I can see the RF1100SE module is targeting 433 MHz. Try change the frequency.

0 Giuseppe pezzella over 8 years ago in reply to TER

Intellectual 360 points

Please explane better what you suggest

0 TER over 8 years ago in reply to Giuseppe pezzella

TI__Guru**** 317180 points

According to the SmartRF Studio screen capture you are running on 868 MHz but the module you have is targeted to 433 MHz. Hence you have to change the frequency in SmartRF Studio and your software to the 433 MHz.

0 Giuseppe pezzella over 8 years ago in reply to TER

Intellectual 360 points

what about the difference between data transmitted and data received?

0 George Peter over 8 years ago

Prodigy 100 points

can you locate the cc1101.cpp in Arduino libraries ?
I think you should change paTable to 0xC0 for 433m , The CC1110's datasheet have mention about it.

Sub-1 GHz

Sub-1 GHz forum

Signal is very poor and receive data don't match what I send