ANTENNA QY21006XL6D3

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

5085

14.45

34.70

21.92

20.64

36.8

40.2

224.9

-9.07

5.4

 

WORKING CONDITION:

Frequency for SWR=1,5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR at 145.000 MHz

Lowest

Highest

Bandwidth

140.400

146.450

6.050

198.7

1.08:1

 

DIMENSIONS:

 

Ref

De1

De2

D1

D2

D3

D4

D5

DQ1

DQ2

DQ3

All elements made of Al rods Ǿ6mm

The height of all rectangles is 500

All dimensions given in milimetres

Pos

0

210

330

408

718

1263

1932

2695

3525

4354

5085

Length

1020

1020

904

950

953

930

910

891

508

488

470

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)

QY21006XL6D3

2.44

12.30

198.6

1.08:1

3.72

3.02

18.33

5.4

225.5

-3.12

DD0VF 9

2.46

12.47

25.0

1.16:1

3.48

3.18

18.44

4.4

235.8

-3.14

YU7EF 10LT

2.49

11.84

45.7

1.13:1

3.13

2.82

17.69

5.3

224.3

-3.67

K5GW 10

2.49

12.45

37.4

1.41:1

3.44

3.16

18.38

7.4

234.6

-3.17

G4CQM 9

2.52

12.63

46.4

2.02:1

3.62

3.35

18.68

7.3

244.4

-3.05

G0KSC 10 LFA

2.53

12.61

48.5

1.05:1

3.48

3.18

18.54

2.6

229.8

-2.92

K1FO 12

2.53

12.49

31.1

1.23:1

3.46

3.18

18.42

4.3

240.7

-3.25

YU7EF 10

2.59

12.44

50.3

1.06:1

3.39

3.10

18.34

6.9

227.8

-3.08

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 (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

15.80

218.9

-7.58

110

15.21

244.8

-8.66

110

15.92

215.8

-7.39

120

15.59

239.0

-8.18

120

16.03

214.7

-7.26

130

15.82

233.4

-7.84

130

16.13

215.2

-7.17

140

15.99

229.3

-7.59

140

16.22

216.3

-7.10

150

16.13

226.5

-7.40

150

16.31

216.4

-7.01

160

16.25

224.6

-7.24

160

16.40

215.6

-6.91

170

16.36

223.4

-7.11

170

16.49

215.0

-6.80

180

16.46

222.6

-6.99

180

16.58

214.8

-6.71

190

16.55

222.1

-6.89

190

16.67

215.0

-6.63

200

16.64

221.9

-6.80

200

16.76

215.4

-6.54

210

16.72

221.9

-6.72

210

16.84

215.7

-6.47

220

16.80

221.9

-6.64

220

16.93

215.9

-6.38

230

16.88

222.1

-6.56

230

17.01

215.8

-6.30

240

16.96

222.4

-6.49

240

17.10

215.7

-6.21

250

17.04

222.6

-6.41

250

17.18

215.8

-6.13

260

17.12

222.9

-6.34

260

17.26

216.1

-6.06

270

17.19

223.1

-6.27

270

17.34

216.9

-5.99

280

17.26

223.3

-6.20

280

17.40

218.0

-5.96

290

17.32

223.5

-6.15

290

17.47

219.6

-5.92

300

17.38

223.6

-6.09

300

17.52

221.4

-5.91

310

17.43

223.7

-6.04

310

17.56

223.4

-5.91

320

17.48

223.8

-5.99

320

17.60

225.4

-5.91

330

17.52

223.9

-5.96

330

17.63

227.5

-5.92

340

17.56

224.0

-5.92

340

 

 

 

350

17.59

224.1

-5.89

350

 

 

 

360

17.61

224.2

-5.87

360

 

 

 

370

17.63

224.3

-5.85

 

 

 

 

380

17.64

224.4

-5.85

 

 

 

 

390

17.66

224.5

-5.83

 

 

 

 

400

17.66

224.6

-5.83

 

 

 

 

410

17.67

224.7

-5.82

 

 

 

 

420

17.67

224.7

-5.82

 

 

 

 

*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)

Tloss

(K)

Remark

3296

3027

20.33

246.0

-3.21

5.4

Per DL6WU formula

3720

3040

20.43

246.2

-3.12

5.4

For max G/T

3860

2160

19.69

213.7

-3.61

5.4

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

14.45

34.70

21.92

20.64

36.8

40.2

224.9

-9.07

5.4

Vertical

14.51

35.71

20.47

21.85

39.8

36.4

223.1

-8.98

5.4

 

Horizontal polarisation patterns

 

 

Vertical polarisation patterns