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Home Hy-Gain DX-88 DX-88 is up again

DX-88 is up again

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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
C2.5
6.33
28.2
100
D2.0
5.1
24.9
> 250
E1.5
3.821.2
> 500
F2.5
6.3
18.1
100
G2.1
5.3
14.1
70
H20
50.7
10.15
60
I18
45.6
CW
N/A

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