[CoARES-D10] Tuning a 5Mhz antenna

[Pat Lambert - W0IPL]

I heard from an "olde timer" this morning that there was no way to tune 
an antenna without RF going out. Not so Batman!  It turns out that 
Palomar Engineers has a device known as an 'R-X Noise Bridge' which does 
NOT put out RF but does allow you to tune your antenna.

You will:
  1) Put the radio, in receive, on the frequency you wish to tune to
  2) Adjust the controls on the noise bridge for a null
  3) Read off the impedance and if it has XsubC or XsubL
  4) Adjust the antenna as required (shorten the antenna if it has XsubL 
and lengthen it it is has XsubC)

This is an almost perfect device for dipoles and will work for other 
antennas as well.

C Ya
  Pat
-- 
  He who laughs last probably made a back-up.