nRF51822 RF Performance Test

RE: nRF51822 RF Performance Test

run_ar — Tue, 23 Feb 2016 09:42:13 GMT

If you are using the radio test example enter the channel number on the nRF51822 that corresponds to the Bluetooth channel center frequency you want to test.

RE: nRF51822 RF Performance Test

Bimal — Tue, 23 Feb 2016 08:59:22 GMT

Ok, so what i understood is like, we need to enter the center frequency number like(02, 04, ..37,39), not the channel# in nRF51822. correct me if i am wrong.

RE: nRF51822 RF Performance Test

run_ar — Tue, 23 Feb 2016 07:41:48 GMT

From core spec: The LE system operates in the 2.4 GHz ISM band at 2400-2483.5 MHz. The LE system uses 40 RF channels. These RF channels have center frequencies 2402 + k * 2 MHz, where k = 0, ..., 39.

The nRF51822 frequency = 2400 + FREQUENCY (MHz). (FREQUENCY is the register setting)

RE: nRF51822 RF Performance Test

Bimal — Tue, 23 Feb 2016 05:59:21 GMT

Hi Run,

I have confusion that, this nRF51822 SoC is BLE single Mode. right! Than while running Radio Test example how it can ask for channel from 0 to 80, where in BLE it should have only 40 channels. How it will be done?

RE: nRF51822 RF Performance Test

run_ar — Mon, 22 Feb 2016 13:00:02 GMT

I would use the radio test example for that. Documentation here.

RE: nRF51822 RF Performance Test

Bimal — Mon, 22 Feb 2016 10:20:50 GMT

Hi, I wanted to have some basic RF test with my spectrum analyzer as below:

Output Power
Frequency Accuaracy
-20dB Bandwidth
RX local oscillator leakage
Adjacent channel bandwidth

Can you help me out, which will be best suitable to use.

RE: nRF51822 RF Performance Test

run_ar — Mon, 22 Feb 2016 10:01:26 GMT

Please take a look at the radio test eksample in the SDK: nRF5_SDK_11.0.0-2.alpha_bc3f6a0\examples\peripheral\radio_test

If you are working with Bluetooth you could use the DTM project for testing: nRF5_SDK_11.0.0-2.alpha_bc3f6a0\examples\dtm