unlicensed 2.4ghz (wifi and bluetooth) is only allowable at 100mw power, anything higher than that needs a registration from NTC.
so if you DIY it, you probably need some approval with NTC or else, if meralco found out that you use a overpowered 2.4ghz in that area, confiscated lahat yan, nangyari na yan nabalitaan ko lang na confiscated yung 2000miliwatt picostation dahil hindi licensed yung operation nya, ang nag kaso, meralco, kasi sa boong NCR, si meralco ang mayhawak ng 2.4ghz frequency channel 1-6, ginagamit nla yan para sa mga power grid nila sa NCR.
dun sa video ng news5 probably isang business offer yan, sila na yung mag provide lahat ng equipment including business permit and ntc permit. So kung kukuha ka sa kanila, dont be shy to ask kung meron NTC approval at meron NTC permit yung wifi hotspot na kukunin mo. Else, mawawala na parang bula yang business mo.
pero may work around
you can actually extend your wifi coverage by using repeaters, assuming those repeaters where also under 100mw power. You can put as many as you want without any kind of license to NTC creating a mesh network like of wifi hotspot. Downside is, medyo hassle ang pag setup.