Quick location and speed question.
I have the 7982 AP right now in Basement ceiling because that where's most my AV equipments are.
All are working very smooth great connection .
Test speed showing 80Mb /upload 17mb in all 3 Wi-Fi upstairs in family room .
My question is if I run the cable in main floor ceiling and mmount the AP there do this will improve?
My ISP gave me 150 mb download and 20mb upload.
Or I need second AP in the basement and call it a day.
Here is a long answer. Test it in the basement standing under the WAP. This test will show you your maximum connection speed ("in vacuum") that you will get. Test your WiFi and your infrastructure separately. Start with SpeedFlex for Ruckus and move on to doing iPerf between 2 wired devices on the wire network. That will show you how fast is your infrastructure in the air as well as on the wire.
From there you can make a decision about another WAP. Keep in mind that the device you are testing your wireless with does matters. Your WAP is 3x3 MIMO. That means that if if your device does not support that, you will see "slower speeds". Test with latest and greatest handhelds (Galaxy S7 and higher, iPhone 7s and higher, Ipad get 4 and higher) for best results.
Also, introducing 80Mhz channels and AC radio and 160 MHz channels on AC Wave 2 on 5Ghz will significantly increase throughput to your devices (if they can support that). That would mean adding R510, R610 or even R720 would make a big difference in speeds (if your devices can support and your network and gateway can deliver).
Short answer. Move with the technology. Upgrade everything to gigabit (2.5/5 Gigabit soon enough) and switch to 5 Ghz AC technology. Upgrade your client devices to AC and add equipment for coverage if money is not an issue. That would get you to the fastest Wi-Fi and equipment that can actually use it.