ANTENNA QY21110XL3D6

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)

11

6185

15.40

29.95

22.15

16.07

33.2

34.6

227.4

-8.17

4.3

 

WORKING CONDITION:

Frequency for SWR=1,5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR at 145.000 MHz

Lowest

Highest

Bandwidth

142.700

146.100

3.400

199.4

1.07:1

 

DIMENSIONS:

 

Ref

De1

De2

D1

D2

D3

All elements of Al tubes Ǿ10 mm

The height of rectangles 522 mm

All dimensions given in milimetres

Pos

0

60

280

381

744

1350

Length

1012

1008

796

936

936

904

 

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

Pos

2065

2833

3654

4556

5406

6185

Length

524

502

488

478

470

464

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)

QY21110XL3D6

2.97

13.25

199.3

1.07:1

3.92

3.64

19.24

4.3

226.8

-2.16

G0KSC 11 LFA

2.98

13.11

48.3

1.06:1

3.78

3.65

19.14

3.0

224.9

-2.23

UA9TC 11RS

2.98

13.09

50.9

1.10:1

3.66

3.37

19.01

5.0

223.0

-2.34

G0KSC 11OWL

3.00

13.16

49.8

1.42:1

3.69

3.44

19.09

7.7

224.6

-2.27

BVO-3WL

3.01

13.43

52.7

3.08:1

3.90

3.70

19.38

8.6

253.1

-2.50

G0KSC 11LFA3R

3.01

13.00

50.1

1.08:1

3.60

3.33

18.92

4.0

223.0

-2.41

YU7EF 11

3.04

13.07

49.0

1.62:1

3.56

3.30

18.87

4.7

222.6

-2.46

F9FT 16

3.06

12.64

20.8

1.37:1

3.54

3.26

18.63

6.0

241.3

-3.05

Z(ohms) - measured on 144.100 MHz

Bandwidth – VSWR measured on 145.000 MHz

Data taken from VE7BQH G/T table

 

DIAGRAMS (no loss included)

 

SWR DIAGRAMS (losses included)

 

STACKING

Horizontal distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

Vertical distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

100

 

 

 

100

16.25

236.2

-7.47

110

15.87

266.0

-8.37

110

16.49

227.4

-7.07

120

16.32

250.2

-7.66

120

16.65

224.6

-6.85

130

16.56

243.7

-7.30

130

16.76

226.1

-6.77

140

16.73

239.1

-7.05

140

16.85

229.1

-6.74

150

16.87

235.9

-6.85

150

16.94

229.6

-6.66

160

16.97

233.8

-6.77

160

17.06

226.8

-6.48

170

17.06

232.3

-6.64

170

17.17

223.5

-6.31

180

17.17

231.3

-6.53

180

17.27

221.9

-6.18

190

17.26

230.7

-6.43

190

17.36

222.1

-6.09

200

17.35

229.9

-6.25

200

17.43

223.5

-6.05

210

17.47

229.6

-6.19

210

17.50

225.7

-6.02

220

17.51

229.0

-6.09

220

17.56

228.0

-6.00

230

17.54

228.6

-6.02

230

17.62

229.9

-5.98

240

17.63

227.9

-5.91

240

17.69

231.1

-5.94

250

17.73

227.3

-5.81

250

17.75

231.5

-5.88

260

17.76

226.4

-5.71

260

17.83

231.0

-5.79

270

17.83

225.7

-5.62

270

17.91

229.9

-5.69

280

17.91

225.2

-5.53

280

17.99

228.5

-5.59

290

17.98

224.7

-5.44

290

18.07

227.1

-5.48

300

18.11

224.3

-5.38

300

18.14

225.7

-5.38

310

18.18

224.0

-5.30

310

18.21

224.6

-5.29

320

18.24

223.6

-5.24

320

18.28

223.9

-5.21

330

18.24

223.5

-5.19

330

18.34

223.7

-5.14

340

18.35

223.3

-5.13

340

18.39

224.1

-5.10

350

18.39

223.4

-5.09

350

18.42

225.0

-5.09

360

18.43

223.6

-5.05

360

18.45

226.2

-5.08

370

18.46

223.8

-5.02

370

18.48

227.3

-5.07

380

18.49

224.2

-5.00

380

18.50

227.9

-5.06

390

18.51

224.6

-4.99

390

18.53

228.1

-5.04

400

18.52

225.0

   -4.99

400

18.55

227.8

-5.01

410

18.54

225.5

-4.98

410

18.57

227.4

-4.98

420

18.55

225.9

-4.98

420

18.58

226.9

-4.96

 

 

 

 

430

18.60

226.3

-4.93

 

 

 

 

440

18.60

225.7

-4.92

 

 

 

 

450

18.61

225.1

-4.90

 

 

 

 

460

18.61

224.7

-4.89

 

 

 

 

470

18.61

224.3

-4.88

*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. In H-stack it can be slightly changed.

 

BEST DISTANCES FOR 4 ANTENNAS IN H-STACK

Horizontal

distance (cm)

Vertical distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

Remark

3641

3498

21.30

224.4

-2.21

Per DL6WU formula

3920

3640

21.39

226.8

-2.16

For max G/T

 

 

 

 

 

For lowest temperature

 

 

XPOL VERSION

Horizontal components: Same as above

Vertical components: Same as above, except:

PERFORMANCES:

Polarization

G (dBi)

F/B (dB)

F/Sh (dBi)

F/Sv (dBi)

Hor (◦)

Ver (◦)

Temp (◦K)

G/T (dB)

Tlos

(K)

Horizontal

15.40

29.95

22.15

16.07

33.2

34.6

227.4

-8.17

4.3

Vertical

15.62

18.96

13.43

18.48

32.0

31.2

237.6

-8.14

4.6

 

Horizontal polarisation patterns

 

Vertical polarisation patterns