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[email protected] · December 10th 06, 09:50 PM posted to rec.radio.shortwave

dxAce wrote:
wrote:

300 ohms for an HF radio?

For many reasons I doubt that.

Common balanced impedances are 150, ~450 and I have seen a few 600 Ohm
RF devices.

300 would be extreme to the limits.

What type receiver is this?

Terry

It is a Realistic DX-160. I had this model as a kid and saw the DX-160
on eBay near by and bought it.

The stuff I've seen on it indicates a 50 Ohm input impedence.

dxAce
Michigan
USA

Thanks dxAce

I did some digging and the DX-160 definitely has a low impedance
antenna input.
I was under the impression that it was 300 ohm.
I removed the 4:1 matching transformer that I installed at the reciever
which would bring the input back to about 75 ohms and saw no difference
in the signal so it may not be that important anyways in a recieve only
setup.

Not that I doubted you.

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