Scanning for APs taking too long

[Joaohcca]

Hi I'm using a esp8266 12E with LoLin board to scan for APs in all available channells but it takes a few seconds to execute. Is it possible to make this time reach ms and still scan all the available channels? Also I tried to use a specific SSID to reduce the time but it dosen't seem to have a great impact. I was hoping I could develop a battery based device that makes periodic scans for networks. But if it takes this long to scan it'll shrink down my battery life a lot. Any suggestions?

Regards,
Joao

[ESP_Xutao]

Hi:
Scan time maybe can not shrink,but you can user system_phy_set_max_tpw() to reduce RF tx power,you can consult document. http://espressif.com/sites/default/file ... faq_cn.pdf

[Joaohcca]

ESP_Xutao

can you send the english version of the related document?

thanks