alchazz wrote:
I am looking for a 6 to 1 balun, 300 ohms balanced to 50 ohms coax. I
don't need one that handles transmitter power as I am only using it for a
receiving antenna.

I have on hand several hundred feet of 50 ohm coax, RG58 modified (IEEE
802.3). I want to use it to connect my 300 ohm TV dipole antenna in my
attic to my HDTV in the basement. And, of course, I would need a 50 ohm
to 75 ohm match at the HDTV.

We only watch over-the-air TV. Why? Because I live within 2 miles of
three 1000 ft TV towers. In fact, the dipole in the basement works quite
well. But I do get dropouts during storms; go figure. I get 17 channels
for free, so why go cable or FIOS. Nothing worthwhile there anyway.

So can someone point me to a good site for balun design. I've done the
Google searches, but all that I find seem to be for high power
applications.

Any help would be appreciated.

Al


Have you tried the 50 ohm cable directly (with a 4:1 xfmr at the dipole)
to see how it works? The 300 ohms for the dipole, etc only apply at one
single frequency and with signals that strong there really shouldn't be
an issue with additional loss. Reflections will not show up visibly
with digital tv.

Part of the issue here is winding the balun and set transformer at UHF
frequencies. Not impossible to do with inexpensive parts (multicore
ferrites) but I wonder if its really necessary?

GL,
Bill