power inserter for now, i open the two links you sent me i select ASKA (https://www.ebay.com/itm/221457117112) is the same brand as the line amplifier. i am just lookin for the AC to DC adapter to make it work.

i also purchased this one but has not arrived yet.

https://www.ebay.com/itm/302756240474

also i saw this ones in amazon, i think are the same as line amplifier

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1