Data transmitted on adjacent WiFi channels

[iainm_ext]

I am using an ESP32-C3-WROOM-02 to replace an existing WiFi module in one of our products. I am using the ESP-AT firmware to create my firmware and have created a custom command so I can send data to be transmitted using the esp_wifi_80211_tx(). I have it pretty much working but there is an issue I am having difficulty with. The product sets ESP into station mode but does not connect, it just beacons on pre-configured channels a number of times but as well as the correct channels I am seeing transmitted data on the channel below and the channel above. So if the configured channel is channel 6, I see the same data on channels 5 and 7, it does not do it for every message but more often than not. Can anybody please help with what I am doing wrong or not doing properly to resolve this.

[ESP_Sprite]

I'd think that this is an artifact from how WiFi is designed. WiFi channels overlap by a lot, so I imagine sometimes the rx hardware 'locks on' to packets sent on a neighbouring channel.