All you need for this special case are two pieces of coax which are the
same length and a tee connector. Yes, there might be a performance
difference -- "power dividers" are likely to add unnecessary loss to the
system, reducing your signal strength.

"Power dividers" aren't the right solution for any antenna phasing
problem. See Chapter 8 of the _ARRL Antenna Book_ for more information.
And feeding two elements or phased antennas with just two pieces of coax
is usually more complicated than cutting them to the difference in phase
angle, as explained in the _Antenna Book_ and
http://eznec.com/Amateur/Articles/Simpfeed.pdf. But yours is a special
case that's easy to do.

Roy Lewallen, W7EL

wrote:
Hi all,

When co-phasing two identical two meter yagis, is it necessary to use
the "power dividers" sold by the antenna manufacter? If two odd
multiples of 1/4 wavelength 75 Ohm coax is carefully constructed and
run into a T connector, won't this achieve the same thing? Is there a
real peformance difference?

Thanks,
Scott, WU2X