4 x 7 element (my former antenna)
The antenna was in use from 2000 to 2006 and I
worked 106 initials on EME with 550W this time in CW.
The single antenna is the base of the group of DG2KBC
and was it at former group of DJ9CZ for example.
144 MHZ 146
144 MHZ 146
144 MHZ 146
144 MHZ 146
swv bandwith
gain
front/back ratio
impendance
lenghts and distances in mm:
| |
reflector |
dipol |
D1 |
D2 |
D3 |
D4 |
D5 |
| distance |
0 |
272 |
545 |
1027 |
1664 |
2413 |
3150 |
| lenght |
1020 |
F9FT |
945.5 |
919 |
898 |
871 |
828 |
| diameter |
10 |
F9FT |
10 |
10 |
10 |
10 |
10 |
| Gain (dBd) |
E(m) |
H(m) |
Ga(dBd) |
Tlos(K) |
Ta(K) |
Tside(K) |
Tback(K) |
G/T |
| 10.5 |
1.8 |
2.0 |
15.5 |
3.1 |
192.9 |
19.9 |
2.4 |
-5.0 |
