Did anyone test at what power output those ¡°reverse biased¡± diodes begin to conduct? At that point I think the RF amp output is practically shorted to the ground unless operating on the lowest band of the filter bank and may blow the finals.
If real PIN diodes are used this would be almost nonissue but with a rectifier pn junction the reverse bias voltage is often the limiting factor.
Ryuji Suzuki AB1WX