Na internetu nasel, 4NEC2 overil postavil a koulam, ze je to o 6dB lepsi nez "4 sestry" a o 9dB lepsi nez "biquad". Podle simulace v 4NEC2 to vypada ze karta keca, ale lepsi to je a o moc. Takze tady je odkaz na rozmery, fotky atd:

reseaucitoyen.be/index.php?UdaYagi2
bombolong.aisbl.org/index.php?UdaYagi2

Zisk 15.2dB podle moji simulace 15.1bB podle simulace v odkazu

Jeste data simulace v 4NEC2:

CE
SY R = .00919' Wire radius
SY L = .00406 ' Gap for soldering to feed

SY V = 0.0797 'polovicka vysky smycky
SY S = .1793 'polovina sirky smycky

SY X31 = -.25691056910569105691056910569106 '-31.6 / 123
SY X1 = .2 '24.6 / 123
SY X2 = .412 '50.7 / 123
SY X3 = .616 '75.8 / 123
SY X4 = .809 '99.5 / 123
SY X5 = 1.083 '133.2 / 123
SY X6 = 1.310 '161.1 / 123
SY X7 = 1.479 '181.9 / 123
SY X8 = 1.753 '215.6 / 123
SY Y31 = .226 '55.6 / 246
SY Y1 = .2 '49.2 / 246
SY Y2 = .1797 '44.2 / 246
SY Y3 = .1939 '47.7 / 246
SY Y4 = .1780 '43.8 / 246
SY Y5 = .1931 '47.5 / 246
SY Y6 = .1768 '43.5 / 246
SY Y7 = .1980 '48.7 / 246
SY Y8 = .1972 '48.5 / 246


GW 1 20 X1 0 -Y1 X1 0 Y1 R
GW 2 20 X2 0 -Y2 X2 0 Y2 R
GW 3 20 X3 0 -Y3 X3 0 Y3 R
GW 4 20 X4 0 -Y4 X4 0 Y4 R
GW 5 20 X5 0 -Y5 X5 0 Y5 R
GW 6 20 X6 0 -Y6 X6 0 Y6 R
GW 7 20 X7 0 -Y7 X7 0 Y7 R
GW 8 20 X8 0 -Y8 X8 0 Y8 R
GW 31 20 X31 0 -Y31 X31 0 Y31 R

GW 50 20 0 V S 0 V -S R
GW 51 10 0 V -S 0 -V -S R
GW 52 10 0 V S 0 -V S R
GW 53 10 0 -V -S 0 -V -L R
GW 54 10 0 -V S 0 -V L R
GW 59 1 0 -V L 0 -V -L R
GS 0 0 .123
GE 0
FR 0 1 0 0 2439. 0
EX 0 59 1 0 1. 0
RP 0 146 146 1001 -90. 90. 2.5 2.5 10000.
EN

Naposledy upravil jdobry 18.04.2005 v 14:03