ANTENNA Y21305XL2

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)

13

8355

15.90

26.05

23.95

19.75

31.6

33.8

219.0

-7.50

6.3

 

WORKING CONDITION:

Frequency for SWR=1,5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR at 145.000 MHz

Lowest

Highest

138.800

146.000

199.9

1.01:1

 

DIMENSIONS:

 

Ref

De1

De2

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

Pos

0

260

390

523

919

1566

2288

3095

3932

4835

5765

6655

7594

8355

Length

1020

1028

828

957

947

927

912

899

881

867

857

847

839

830

All elements made of Al tubes Ǿ5mm  -     All dimensions given in milimetres   -   No boom correction included

 

 

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 13

3.92

14.12

47.9

2.55:1

4.05

3.82

20.00

6.0

220.1

-1.28

IK0BZY 12

3.95

14.06

99.2

1.44:1

4.02

3.78

19.93

6.9

222.5

-1.39

DG7YBN 14

3.98

14.09

50.4

1.07:1

4.20

4.00

20.08

5.8

220.4

-1.20

BVO2-4WL

3.99

14.17

45.0

1.25:1

4.24

4.02

20.14

6.8

241.8

-1.54

DJ9BV 4.0

4.01

14.04

41.5

1.35:1

4.16

3.92

19.91

6.5

249.4

-1.91

K1FO 16

4.01

14.13

35.0

1.15:1

4.16

3.87

20.05

4.7

229.9

-1.42

SV 2SA13

4.01

14.45

52.2

1.41:1

4.38

4.16

20.42

7.0

239.0

-1.21

Y21302L7

4.01

13.75

199.9

1.01:1

4.78

5.12

19.86

6.3

218.7

-1.38

HG VB-215DX

4.03

14.10

38.6

1.41:1

4.21

3.97

20.00

5.8

250.8

-1.84

CC3219 MOD

4.04

14.13

32.1

1.02:1

4.27

4.07

20.09

5.1

248.2

-1.71

KLM 16LBX

4.09

14.16

198.1

1.29:1

4.26

4.02

20.08

6.3

242.0

-1.61

CC4218XL

4.19

14.28

14.8

1.43:1

4.33

4.13

20.22

8.7

245.0

-1.52

WB9UWA 15

4.18

13.65

26.0

1.51:1

3.75

3.50

19.44

8.3

208.9

-1.61

G0KSC 14LFA3R

4.23

14.44

48.8

1.07:1

4.19

4.00

20.35

2.4

216.5

-0.86

YU7EF 14M

4.24

14.23

48.6

1.07:1

4.07

3.85

20.08

7.0

220.1

-1.20

UA9TC 14RS

4.24

14.33

49.5

1.06:1

4.13

3.80

20.22

5.2

216.7

-0.99

G0KSC 14 LFA

4.30

14.51

47.1

1.22:1

4.24

4.02

20.41

5.5

218.1

-0.82

KF2YN Boxkite 16

4.30

15.85

50.5

1.16:1

5.50

5.10

21.83

6.2

227.4

0.41

InnoV 14 LFA

4.32

14.45

48.6

1.10:1

4.18

3.97

20.34

6.6

215.6

-0.85

YU7EF 14

4.37

14.48

41.0

2.30:1

4.21

4.00

20.33

8.8

220.0

-0.94

YU7EF 14LT

4.37

13.91

47.8

1.29:1

3.89

3.64

19.60

11.7

211.0

-1.49

K1FO 17

4.40

14.44

27.7

1.25:1

4.24

4.02

20.34

4.9

229.5

-1.12

DJ9BV 4.4

4.41

14.32

38.3

1.36:1

4.27

4.07

20.18

6.6

251.5

-1.68

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

17.20

215.4

-6.12

110

 

 

 

110

17.31

213.6

-5.98

120

 

 

 

120

17.39

214.3

-5.91

130

17.22

227.7

-6.35

130

 

 

 

140

 

 

 

140

17.49

222.3

-5.97

150

17.47

227.1

-6.08

150

 

 

 

160

 

 

 

160

17.59

224.4

-5.91

170

17.63

226.0

-5.90

170

 

 

 

180

 

 

 

180

17.74

222.9

-5.73

190

17.77

225.2

-5.75

190

 

 

 

200

 

 

 

200

17.88

222.0

-5.57

210

17.90

224.2

-5.60

210

 

 

 

220

 

 

 

220

18.03

221.1

-5.41

230

18.03

222.8

-5.44

230

 

 

 

240

 

 

 

240

18.16

220.7

-5.27

250

18.16

221.1

-5.28

250

 

 

 

260

 

 

 

260

18.29

220.1

-5.13

270

18.29

219.4

-5.11

270

 

 

 

280

 

 

 

280

18.43

218.5

-4.95

290

18.42

217.8

-4.95

290

 

 

 

300

 

 

 

300

18.57

216.5

-4.77

310

18.54

216.5

-4.80

310

 

 

 

320

 

 

 

320

18.70

215.1

-4.62

330

18.66

215.7

-4.67

330

18.76

214.9

-4.55

340

 

 

 

340

18.81

215.0

-4.50

350

18.77

215.4

-4.55

350

18.85

215.5

-4.47

360

18.81

215.3

-4.51

360

18.89

216.2

-4.45

370

18.85

215.4

-4.47

370

18.93

216.9

-4.42

380

18.89

215.6

-4.43

380

18.96

217.3

-4.40

390

18.92

215.8

-4.41

390

 

 

 

400

18.95

216.0

-4.38

400

19.01

218.0

-4.36

410

18.98

216.3

-4.36

410

 

 

 

420

19.00

216.5

-4.34

420

19.05

218.4

-4.33

430

19.02

216.8

-4.33

430

 

 

 

440

19.04

217.0

-4.31

440

19.08

218.6

-4.31

450

19.05

217.2

-4.31

450

19.08

218.5

-4.30

460

19.06

217.4

-4.30

460

19.09

218.3

-4.29

470

19.07

217.5

-4.29

470

19.10

217.9

-4.27

480

19.08

217.6

-4.29

480

19.10

217.4

-4.26

490

19.08

217.6

-4.29

490

19.11

216.8

-4.24

500

19.09

217.7

-4.28

500

19.11

216.2

-4.23

510

19.09

217.7

-4.28

510

19.11

215.7

-4.22

 

 

 

 

520

19.11

215.3

-4.21

 

 

 

 

530

19.11

215.2

-4.21

*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

3820

3578

21.69

216.9

-1.67

Per DL6WU formula

4780

5120

22.01

218.7

-1.38

For max G/T

4480

1120

20.16

214.9

-3.16

For lowest temperature I

4480

3280

21.69

215.8

-1.65

For lowest temperature II

 

STACKING DIAGRAMS FOR MAX G/T

 

STACKING DIAGRAMS FOR LOWEST TEMPERATURE I

 

STACKING DIAGRAMS FOR LOWEST TEMPERATURE II