Geoffrey S. Mendelson wrote:
wrote:
That's weird I didn't notice any difference in radio reception at all
between the straight coax feed or thru the 4:1 matching transformer.

I've read more and I'm really confused. A 90 foot random wire is unbalanced.
A DX-160 with a coax input is unbalanced. What's the balun for?

Geoff.

--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
IL Voice: (07)-7424-1667 Fax ONLY: 972-2-648-1443 U.S. Voice: 1-215-821-1838
Visit my 'blog at http://geoffstechno.livejournal.com/

I'm getting more confused the more I read replies and on the net and
I'm starting to wonder also.

But my reasoning is... I thought the input impedance of the reciever
at the terminals was 300 ohms. I am using a 4:1 matching transformer
at the antenna (currently a 70ft windom) to feed into 75 ohm RG-6 coax.
The 4:1 matching transformer at the reciever was to return the input
to 300 ohms.

I'm going to do some more reading up on this.

Brian