Emperor 5010 Radio Cb Radio Swr Questions?

Cb radio swr questions? - emperor 5010 radio

I recently completed a Emperor TS 5010 the Antron 99 and himself a SWR reading somewhere at 1.6 and 1.8, I have 50 feet of RG-8X coax 1000W antenna is about 30 feet high. Can anyone tell me what I am doing wrong and how to improve, thank you.