DX-88 is up again

I felt I should give the FT-817 a fair chance, so I have put the DX-88 up again. Of course, I have new tuning parameters and it seemed, that some of the parameters were not like they should have been.

The changes I made this time are:

  • A and B were 12.4 cm. It seems that previously I have been mistaken and thought that the graph indicated the sum of A and B. It is, however A = B, not A + B.
  • H was too short.
  • The piece below I was too short; it should be 83 cm.

Anyway, here are the new parameters:

Element
Inches
Centimeter fc [MHz]
Δf [kHz]
A and B 7 17.7 3.6 and 7.0 40 and 60
C 2.5 6.33 28.2 100
D 2.0 5.1 24.9 > 250
E 1.5 3.8 21.2 > 500
F 2.5 6.3 18.1 100
G 2.1 5.3 14.1 70
H 20 50.7 10.15 60
I 18 45.6 CW N/A

 The SWR measurements will be posted on my DX-88 pages later.