With WSPR on 30 meter I was reported by VK2/VK6DI 16.682 km with 5 watt. On the empty pole I will place in September a 160 meter EH antenna for experimenting. I know the antenna is very controversial, but I like to try it myself.
For Adam a picture of one of my power suplies the MyDel MP-8230 - 13,8 V and max. cumulative current 23 A [click here]