home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Hacker Chronicles 2
/
HACKER2.BIN
/
325.W3DZZ.ANT
< prev
next >
Wrap
Text File
|
1988-06-27
|
671b
|
27 lines
W3DZZ Trap Dipole for 80 through 10 meters
Free Space
14.150 MHz
4 wires, feet
6 0 -54 0 0 -32 0 #12
6 0 -32 0 0 0 0 #12
6 0 0 0 0 32 0 #12
6 0 32 0 0 54 0 #12
1 source
12,100,0
2 loads
Laplace Transform
6,2
0 1
8.2 0
0 4.92E-4
18,2
0 1
8.2 0
0 4.92E-4
The ARRL Antenna Book says this antenna is resonant at 3750, 7200, 14150, and
29500, with a very broad resonance on 15 meters, and that the antenna shows a
SWR of less than 2 to 1 on 20, 15, and 10 using a 75 ohm feedline. MN computes
the resonance points somewhat higher. Try lengthening the inner and outer
wires to bring the resonant frequencies more into line.