Probably a few kW, horizontal wire, gives a pretty strong skywave so UK at night must not be an issue on a (relatively) clear channel.
Does anybody know the station ID of a Dutch pirate that operates around 1610 kc, seemingly late night Sunday. I have heard him close down at 23:00. Last night he closed down at 22:30 due to weather. I am astonished that such a strong signal gets in to SW London.
It's usually Radio Baroness that has a staggering signal in Birmingham -- often much stronger than Big L (was) on 1395 kHz.