IC8POF's HY-GAIN DX-88 reborn.
After more than 15 years of good work in 2006 this fine antenna
due the oldness has ceased to work.
Below is the resulting mini-vna screen showing the antenna's fault
after having noted that no bands were more usable.
So I had to decide whether to buy a new one .... or try to make a repair!
Thinking of the HAM Spirit... and after looking into the money-box
the decision to give a try and look if it would be possible to repair the antenna
was very short.
- What to do:
- 1) Feed point repair.
- 2) Antenna cleaning.
- 3) Minimal repair.
- ...
Part 1 , the Feed_point affair.
As soon as I went to disassemble the various antenna's parts I came across its feed-point (FP).
FP_pic
There I noted 2 things:
- a) the RF_live contact between the FP and the aluminium tubing was poor.
- b) the fedd-point was broken.
a) the live contact is just made by the means of a steel screw through the tube and contacting the FP.
rflive_pic
This solution is reliable, but only if the antenna is guyed.
ottobre 2009