ANTENNA Y21010XL0

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)

10

5565

14.78

20.66

21.99

17.01

35.0

38.2

230.9

-8.85

3.5

 

WORKING CONDITION:

Frequency for SWR=1,5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR at 145.000 MHz

Lowest

Highest

135.500

146.100

199.6

1.04:1

 

DIMENSIONS:

 

Ref

De1

De2

D1

D2

D3

D4

D5

D6

D7

D8

Pos

0

298

402

528

915

1544

2278

3085

3888

4778

5565

Length

1010

1010

1010

946

931

907

889

873

861

843

837

All elements made of Al tubes Ǿ10mm  -     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)

I0JXX 12

2.68

12.67

26.9

1.31:1

3.58

3.30

18.64

6.9

238.0

-2.97

Y21010XL0

2.72

12.63

199.6

1.04:1

3.68

3.38

18.65

3.5

233.4

-2.88

BQH 12J

2.80

12.80

50.0

1.01:1

3.67

3.40

18.83

4.3

246.2

-2.93

CT1FFU 10C

2.82

13.04

27.2

1.23:1

3.62

3.31

18.93

4.2

222.9

-2.40

M2 12

2.84

12.68

37.0

1.13:1

3.48

3.20

18.54

5.4

232.5

-2.97

KF2YN Boxkite12

2.84

14.90

48.5

1.22:1

6.00

4.40

20.84

5.9

227.4

-0.58

BQH 10

2.86

13.05

22.6

1.47:1

3.69

3.43

19.00

7.0

232.5

-2.51

WB9UWA 12

2.87

12.73

23.9

1.47:1

3.48

3.20

18.61

7.0

223.0

-2.72

DK7ZB 10

2.87

13.00

25.8

1.61:1

3.87

3.60

19.17

6.8

247.5

-2.62

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

15.95

224.7

-7.56

110

 

 

 

110

16.09

220.7

-7.34

120

 

 

 

120

16.21

219.4

-7.19

130

15.95

248.2

-7.99

130

16.30

221.2

-7.14

140

 

 

 

140

 

 

 

150

16.27

241.3

-7.55

150

16.45

227.2

-7.11

160

 

 

 

160

 

 

 

170

16.51

236.5

-7.22

170

16.63

226.2

-6.91

180

 

 

 

180

 

 

 

190

16.70

233.3

-6.97

190

16.81

226.5

-6.73

200

 

 

 

200

 

 

 

210

16.88

231.0

-6.75

210

16.98

228.2

-6.59

220

 

 

 

220

 

 

 

230

17.05

229.3

-6.54

230

17.15

228.3

-6.43

240

 

 

 

240

 

 

 

250

17.21

228.1

-6.36

250

17.32

226.5

-6.22

260

 

 

 

260

17.41

225.6

-6.11

270

17.37

227.6

-6.19

270

17.49

224.9

-6.02

280

 

 

 

280

17.57

224.6

-5.93

290

17.51

227.5

-6.05

290

17.64

224.8

-5.87

300

17.57

227.6

-5.99

300

17.71

225.4

-5.81

310

17.63

227.8

-5.94

310

17.76

226.4

-5.78

320

17.68

228.0

-5.89

320

17.81

227.6

-5.75

330

17.73

228.3

-5.85

330

17.85

229.1

-5.74

340

17.77

228.6

-5.81

340

17.88

230.8

-5.74

350

17.80

229.0

-5.79

350

17.90

232.6

-5.76

360

17.83

229.3

-5.77

360

 

 

 

370

17.86

229.7

-5.74

 

 

 

 

380

17.88

230.1

-5.73

 

 

 

 

 

17.89

230.5

-5.73

 

 

 

 

 

 

 

 

 

 

 

 

*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

3421

3147

20.62

228.4

-2.96

Per DL6WU formula

3780

3380

20.76

232.7

-2.90

For max G/T

3680

1280

19.11

218.7

-4.28

For lowest temperature

 

STACKING DIAGRAMS FOR MAX G/T

 

STACKING DIAGRAMS FOR LOWEST TEMPERATURE