Review on Bingfu WiFi Antenna Extension Cable 2-Pack - RP-SMA Male to RP-SMA Female Bulkhead Mount - 16.5ft RG174 Cable - Ideal for WiFi Routers, Security IP Cameras, Wireless Network Cards, Adapters, Lora & LoraWAN Gateways by Kendriece Figueroa

I need to extend my WiFi antennas about 15 feet off the ground, my husband is hiding in an old underground bomb shelter about 50 feet from the house where the router is I am using WiFi 6 ROG NIC and a AX11000 ROG router and my signal strength is about 30% at 480/Mb, with my laptop next to the router with WiFi 6 NIC, my speed is about 800/Mb so I am trying See if I can get that speed cheaply since I don't have enough for a WiFi 6 extender yet. So I tried to extend my antenna above the ground since my laptop loses about 650/Mb on the bunker. but these extensions reduced my signal by 8%, causing me to lose about 20/Mb. Now I just have to wait until I can afford a WiFi 6 extender.