Nordic NRF24L01--How to confirm Cont_Wave mode

Wireless & IoT
1

I’ve using the NRF24l01 in several applications. I’m trying to do antenna tuning using the CONT_WAVE feature of the chip. See attachment “RF_Test_Inst…” for how it’s done.

Ubiquiti products include an “AirView” mode, which provides functionality similar to a spectrum analyzer. So, I was hoping to use the spectrum analyzer mode to see signal strength variation as I “tuned” the antenna by trimming a pcb trace, or varying cap/inductor values.

Unfortunately, I can’t see the transmitted carrier. I have a thread going on the subject on the Ubiquiti site–the community exists the tool should show the signal if it’s indeed there.

http://community.ubnt.com/t5/Getting-St … d-p/460795

Finally the question. Has anyone successfully used CONT_WAVE mode? Is anybody aware of a way I can use a second Nordic transceiver to detect a carrier transmitted by another Nordic transceiver?

I’ve used a second transceiver to confirm data is being transmitted, but that isn’t seen by the AirVew tool. Perhaps because it’s “on air” such a short period of time it’s too “bursty” for the spectrum analyzer show. (That was the motivation for using continuous carrier mode).

Thanks,

Dave Thomas

2

Got it working–

But, no sure the Ubiquiti tool will help with transmitter tuning. Haven’t given up, though.

Dave Thomas