ANTENNA Y20905XL1

PERFORMANCES:

No of ele

L (mm)

G (dBi)

F/B (dB)

F/Sh (dBi)

F/Sv (dBi)

Hor (◦)

Ver (◦)

Temp (◦K)

G/T (dB)

Tlos

(K)

9

4645

14.05

22.22

23.90

16.80

37.8

42.4

235.7

-9.67

5.5

 

WORKING CONDITION:

Frequency for SWR=1,5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR at 145.000 MHz

Lowest

Highest

139.900

146.000

198.0

1.08:1

 

DIMENSIONS:

 

Ref

De1

De2

D1

D2

D3

D4

D5

D6

D7

All elements made of Al tubes Ǿ5 mm

All dimensions given in milimetres

No boom correction included

Pos

0

278

385

512

908

1546

2285

3065

3899

4645

Length

1020

1026

846

956

946

923

908

889

876

864

 

COMPARISON

TYPE OF

ANTENNA

SINGLE ANTENA

FOUR ANTENNAS IN H-STACK

L

(λ)   

GAIN

(dBd)

Z

(ohms)

VSWR

Bandwidth

E

(m)

H

(m)

Ga

(dBd)

Tlos

(K)

Ta

(K)

G/T

(dB)

YU7EF 9

2.16

11.84

49.8

1.17:1

3.20

2.89

17.74

5.3

236.6

-3.84

F9FT 11

2.17

11.78

21.5

1.25:1

3.26

2.97

17.75

5.3

251.0

-4.10

CC 13B2

2.17

11.79

21.1

1.37:1

3.33

3.01

17.78

5.9

257.9

-4.18

K1FO 11

2.18

11.97

44.0

1.29:1

3.30

3.00

17.90

4.3

248.0

-3.89

CC 215WB

2.19

11.78

17.4

1.47:1

3.36

3.07

17.78

6.6

266.6

-4.33

Vine 9 FD

2.22

11.93

50.0

1.07:1

3.21

2.91

17.80

9.4

230.0

-3.67

Y20905XL1

2.23

11.90

198.0

1.08:1

3.48

2.68

17.72

3.7

229.9

-3.73

G0KSC 9OWL

2.28

12.15

49.0

 1.20:1

3.28

2.97

18.00

6.4

229.5

-3.46

KF2YN Boxkite 10

2.29

14.29

49.0

1.14:1

4.49

3.89

20.25

5.6

225.9

-1.13

G4CQM CQM12UX

2.32

11.94

50.2

1.06:1

3.20

2.89

17.82

4.0

231.6

-3.68

Flexa 224

2.34

11.52

60.4

1.09:1

3.50

3.30

17.66

30.1

259.2

-4.33

RA3AQ 9

2.35

12.38

49.2

1.10:1

3.40

3.13

18.31

5.6

234.3

-3.24

CT1FFU 9

2.38

12.23

28.1

1.15:1

3.26

2.97

18.08

3.6

226.8

-3.33

ZL1RS 9

2.38

12.24

48.7

2.19:1

3.30

3.01

18.13

5.6

227.2

-3.28

Eagle 10

2.38

12.28

23.6

1.33:1

3.44

3.16

18.27

6.0

243.0

-3.43

G4CQM CQM12UC

2.39

12.15

49.4

1.03:1

3.30

3.01

18.05

5.2

235.6

-3.54

DK7ZB 9

2.39

12.41

27.5

1.23:1

3.56

3.30

18.45

6.2

250.5

-3.39

Vine 10 FD

2.45

12.27

47.6

1.08:1

3.35

3.04

18.17

9.5

226.7

-3.23

DD0VF 9

2.46

12.47

25.0

1.16:1

3.48

3.18

18.44

4.4

235.8

-3.14

Z(ohms) - measured on 144.100 MHz

Bandwidth – VSWR measured on 145.000 MHz

 

DIAGRAMS (no loss included)

 

SWR DIAGRAMS (loss included for Al)

STACKING

Horizontal distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

Vertical distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

100

 

 

 

100

15.42

222.1

-8.04

110

 

 

 

110

15.55

218.4

-7.83

120

 

 

 

120

15.66

217.3

-7.70

130

15.46

245.9

-8.44

130

15.76

219.2

-7.64

140

 

 

 

140

 

 

 

150

15.73

238.9

-8.05

150

15.89

225.6

-7.64

160

 

 

 

160

 

 

 

170

15.94

235.6

-7.77

170

16.06

226.4

-7.48

180

 

 

 

180

 

 

 

190

16.13

234.1

-7.56

190

16.24

228.3

-7.34

200

 

 

 

200

 

 

 

210

16.31

233.6

-7.37

210

16.40

229.1

-7.19

220

 

 

 

220

 

 

 

230

16.48

233.5

-7.20

230

16.59

227.3

-6.97

240

 

 

 

240

16.69

226.3

-6.86

250

16.64

233.7

-7.04

250

16.78

225.8

-6.75

260

 

 

 

260

16.86

225.9

-6.67

270

16.79

234.0

-6.89

270

16.94

226.8

-6.61

280

16.86

234.2

-6.83

280

17.01

228.2

-6.57

290

16.92

234.3

-6.77

290

17.07

230.1

-6.54

300

16.98

234.5

-6.72

300

17.13

232.2

-6.52

310

17.03

234.7

-6.67

310

17.17

234.5

-6.53

320

17.07

234.9

-6.63

320

17.21

236.9

-6.53

330

17.11

235.0

-6.59

330

17.23

239.2

-6.55

340

17.14

235.2

-6.57

340

 

 

 

350

17.16

235.4

-6.55

350

 

 

 

360

17.18

235.6

-6.53

360

 

 

 

370

17.20

235.7

-6.52

 

 

 

 

380

17.21

235.9

-6.51

 

 

 

 

*The Table is presented without KF2YN convergence correction applied and serves only to show which distance can be used with good result. and which distances should be avoided.

 

BEST DISTANCES FOR 4 ANTENNAS IN H-STACK

Horizontal

distance (cm)

Vertical distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

Remark

3211

2877

19.93

233.4

-3.75

Per DL6WU formula

3680

2680

19.90

229.5

-3.71

For max G/T

3480

1280

18.59

218.0

-4.79

For lowest temperature

 

STACKING DIAGRAMS FOR MAX G/T

 

 

STACKING DIAGRAMS FOR LOWEST TEMPERATURE