On 22-Jun-2004, "Paul VK3DIP" wrote:

Hi,
I have been trying out a couple of home made resistive bridges to measure
Return Loss/Reflection Coeff/VSWR and have noted that there seems to be a
few basic types and would be interested in collecting a few comments from
others who have more experience with them than I. I should mention that I am
mainly interested in using these at VHF and up so have tended to discount
toroid/current types, and am interested in as wide a usable frequency range
as possible so also have not looked a lot at transmission line style
directional coupler ones either. If anyone has any comments on those
assumptions I would also be interested.




Take a look at:

http://users.adelphia.net/~n2pk/

for a description of the VNA - Virtual Network Analyzer.