ComThings/PandwaRF

RX power amplifier option does not work

TadasSu opened this issue · 2 comments

TadasSu commented

RSSI in specan is the same with different RF Power Amplifiers options.
I tried these: Turn off TX/RX amp / Turn on RX amp always / Turn on RX apm only when receiving / Turn on RX/TX auto

screenshot_20181004-222405
screenshot_20181004-222431
screenshot_20181004-222449

trollwookiee commented

I made some tests on App v1.4.20/Nordic v0.11.1/CC1111 v1.1.1.
I measure a difference of 9 dB when RF power amplifiers are ON in RX.

  • With RX amplifiers OFF: RSSI = -30dBm at 433.4MHz
    screenshot_20181115-171909

  • With RX amplifiers Always ON: RSSI = -21dBm at 433.375MHz
    screenshot_20181115-171632

  • With RX amplifiers in Auto mode: RSSI = -21dBm at 433.4MHz
    screenshot_20181115-171612

So I assume that RX power amplifier option does work.

Please re-open in case I am wrong.
Thanks.

TadasSu commented

I can not reproduce issue on latest firmware too. It was on older one.