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Measurement with NanoVNA V2 - SAA-2N

A project log for RF2126 module (amazon) tuning for 2.4GHz

RF2126 module received from Amazon. It did not work for 2.4GHz as announced. So tuning was performed.

denys-zaikinDenys Zaikin 02/25/2026 at 21:210 Comments

- I needed to change the central frequency a little to 2.4 GHz, so I implemented 1.1pF in input side of the RF2126 module instead of 1pF for C1 and C2. To get 1.1pF, two 2.2pF 0805 in series were used.

- 20 dB attenuator at the output of the RF2126 module:

- no attenuator at the output of the RF2126 module:

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