It RF calibration necessary if we never transmit?

michaelburton
Posts: 3
Joined: Fri Mar 02, 2018 7:06 am

It RF calibration necessary if we never transmit?

Postby michaelburton » Fri Mar 02, 2018 7:41 am

Hi, I'm just using the ESP8266 to scan for BSSIDs and not to transmit anything and I'd like to save the power of the calibration on startup.

Is the RF calibration on startup necessary if we are never transmitting anything?

AgentSmithers
Posts: 165
Joined: Sat Apr 01, 2017 1:21 am
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Re: It RF calibration necessary if we never transmit?

Postby AgentSmithers » Fri Mar 02, 2018 1:13 pm

michaelburton wrote:Hi, I'm just using the ESP8266 to scan for BSSIDs and not to transmit anything and I'd like to save the power of the calibration on startup.

Is the RF calibration on startup necessary if we are never transmitting anything?


I normally do it but im woundering, any reason why not to? Does it save any resources?

michaelburton
Posts: 3
Joined: Fri Mar 02, 2018 7:06 am

Re: It RF calibration necessary if we never transmit?

Postby michaelburton » Tue May 08, 2018 7:48 am

Yes, it draws 300mA peaks during RF calibration which means we need big bulk capacitors (introducing high DC leakage) and a DC converter that supports higher currents (which adds cost and more quiescent current) for a calibration that may be completely unnecessary.

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