Jerry Martes wrote:
Is there anyone interested in seeing pictures of a home made VHF slotted
line?? I bought some copper pipe at Home Depot and built a 50 ohm line
that seems to work very well.

Definitely! (I'm always a sucker for VHF test equipment.)

H-P used to make one of these, in the form of a very deep trough-line
with massively braced side castings. There was also a 'lite' copy in the
old ARRL VHF Handbook.

If you can minimize the residual SWR (the variation in probe readings
along the line when terminated in a precision 50R load) and other
sources of variability, then you'll be able to make highly accurate
vector impedance measurements at VHF.


--
73 from Ian G3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek