Topband: Hi Z amplifiers for 160m

[DXer]

 >>The design already has a 20 kA gas discharge tube and DC biased diode 
limiter for lightning and surge protection. It also has an optional (by 
internal link) diode limiter on the output so that it can be used by 
"weak" SDR receivers such as the SDRPlay RSP series that cannot take 
high RF levels.

I like the fact that you include this protection in a lot of your 
products. I use one of your receiver multicouplers to feed my SWL SDRs. 
The SWL antenna is only 3 or 4 ft from the ham antenna. No problems 
whatsoever.

73 de Vince, VA3VF