Sent from my iPhone On Apr 18, 2016, at 12:58, Grant Saviers <grants2 at pacbell.net> wrote: Some of the recent big DXpeditions used the 4O3A triplexer into multi-banders at 500w to 1kw with good results. http://www.4o3a.com/index.php/products/high-power-filters/combiner "Now, with cooling fan" tells us something.