Bias-Tee current through PolyPhaser protector?

[N8SHA]

I'm mulling the idea of putting a couple of pre-amps at my antennas, powered via bias-tees. Does anybody know whether PolyPhaser protectors will pass the DC current?

My preference would be to put the bias-tees to the inside of my entry panel. Typically I've used the IS-B50HN-C2, which mentions a DC block, but I'm unclear whether that is just incoming or both directions.

Thanks,
Matt

 

[GTR8000]

DC blocking means just that...all DC current is blocked in either direction.

PolyPhaser Coaxial Lightning Protectors use a DC blocked specially configured gas tube design that has no DC continuity between the two center pins. PolyPhaser's multi-strike products are designed to pass RF frequencies and block all DC.

 

[Mattsenft]

Polyphaser does make some DC pass through products. They cost a couple bucks more, but should work for you. It looks like they have separate ones based on the DC voltage used, so make sure you select the right one.

 

[mmckenna]

Yeah, I've used them for GPS antennas used on our network. I have to pass 5 volts DC up the coax to the antenna. PolyPhaser has what you need.

 

[N8SHA]

I appreciate the confirmation!

Matt