I have aligned and re-aligned the antenna and those were the best signal stats i could obtain.No I doubt that would do anything. You should align your antenna better. If you are 800m from the tower and using an antenna then something is wrong because those stats does not look like 800m away from tower with antenna stats. Can you see the tower from the point the antenna is mounted? If yes then I doubt that is the tower you are connecting too.
Yes, i can see the tower from the point where my external antenna is mounted.
Though about 100m away from where the antenna is mounted there are two trees which slightly block the view of the Telkom tower.
I have confirmed with Telkom (based on the Cell ID) the tower I am connecting to;
it is around 800m away from my physical location.
Is there anything else I can try and do to improve my signal ?