ANTENNA QY21205XL3D7
ANTENNA QY21205XL3D7
PERFORMANCES:
|
No of ele |
L (mm) |
G (dBi) |
F/B (dB) |
F/Sh (dB) |
F/Sv (dB) |
Hor (◦) |
Ver (◦) |
Temp (◦K) |
G/T (dB) |
Tlos (K) |
|
12 |
6425 |
15.25 |
22.19 |
25.30 |
17.94 |
34.4 |
35.6 |
222.5 |
-8.22 |
5.7 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
141.100 |
146.000 |
4.900 |
197.9 |
1.04:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
DQ1 |
DQ2 |
DQ3 |
All elements made of Al rods Ǿ5 mm The height of all rectangles is 500 mm All dimensions given in milimetres |
|
Pos |
0 |
200 |
325 |
418 |
705 |
1075 |
1578 |
2226 |
3018 |
|
|
Length |
1020 |
1020 |
820 |
945 |
935 |
917 |
556 |
532 |
512 |
|
|
|
DQ4 |
DQ5 |
DQ6 |
DQ7 |
|
|
|
|
|
|
|
Pos |
3869 |
4744 |
5664 |
6425 |
|
|
|
|
|
|
|
Length |
498 |
482 |
472 |
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) |
|
|
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 |
|
QY21205XL3D7 |
3.06 |
13.10 |
197.9 |
1.04:1 |
3.72 |
3.58 |
19.19 |
5.7 |
223.1 |
-2.24 |
|
SM2CEW 14 XPOL |
3.08 |
13.04 |
19.2 |
1.40:1 |
3.50 |
3.50 |
18.96 |
6.9 |
226.4 |
-2.44 |
|
CD15LQDver2 |
3.09 |
12.90 |
50.0 |
1.25:1 |
4.00 |
3.80 |
19.02 |
4.4 |
238.8 |
-2.61 |
|
CD15LQDver1 |
3.10 |
12.83 |
50.0 |
1.23:1 |
4.00 |
3.80 |
18.97 |
4.2 |
249.9 |
-2.86 |
|
I5MZY 13 |
3.10 |
12.97 |
49.3 |
1.50:1 |
3.56 |
3.30 |
18.83 |
6.0 |
225.9 |
-2.56 |
|
MBI ModFT17 |
3.12 |
13.29 |
50.1 |
1.41:1 |
3.85 |
3.60 |
19.27 |
8.2 |
239.5 |
-2.37 |
|
F9FT 17 |
3.14 |
12.87 |
25.8 |
1.32:1 |
3.68 |
3.50 |
18.90 |
5.8 |
236.4 |
-2.69 |
|
CC3219 |
3.17 |
12.77 |
18.3 |
1.49:1 |
4.27 |
3.66 |
18.80 |
5.7 |
307.8 |
-3.93 |
|
CC3219 MOD |
3.17 |
13.25 |
29.0 |
1.06:1 |
3.87 |
3.62 |
19.27 |
5.1 |
245.6 |
-2.48 |
|
BQH 13 |
3.19 |
13.30 |
50.0 |
1.11:1 |
3.85 |
3.60 |
19.28 |
4.3 |
244.9 |
-2.46 |
|
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 |
16.16 |
224.1 |
-7.37 |
|
110 |
16.02 |
237.7 |
-7.77 |
110 |
16.38 |
219.3 |
-7.05 |
|
120 |
16.32 |
233.1 |
-7.38 |
120 |
16.52 |
218.2 |
-6.88 |
|
130 |
16.50 |
230.3 |
-7.14 |
130 |
16.64 |
220.5 |
-6.81 |
|
140 |
16.64 |
228.2 |
-6.96 |
140 |
16.72 |
224.4 |
-6.80 |
|
150 |
16.75 |
226.8 |
-6.82 |
150 |
16.80 |
226.6 |
-6.77 |
|
160 |
16.85 |
225.9 |
-6.70 |
160 |
16.89 |
226.0 |
-6.66 |
|
170 |
16.94 |
225.5 |
-6.60 |
170 |
16.99 |
224.5 |
-6.53 |
|
180 |
17.02 |
225.3 |
-6.52 |
180 |
17.08 |
223.7 |
-6.43 |
|
190 |
17.10 |
225.3 |
-6.44 |
190 |
17.16 |
223.4 |
-6.34 |
|
200 |
17.18 |
225.3 |
-6.36 |
200 |
17.24 |
223.6 |
-6.27 |
|
210 |
17.26 |
225.2 |
-6.28 |
210 |
17.31 |
223.9 |
-6.20 |
|
220 |
17.34 |
225.0 |
-6.19 |
220 |
17.39 |
224.2 |
-6.13 |
|
230 |
17.41 |
224.7 |
-6.12 |
230 |
17.46 |
224.3 |
-6.06 |
|
240 |
17.49 |
224.2 |
-6.03 |
240 |
17.53 |
224.2 |
-5.99 |
|
250 |
17.57 |
223.7 |
-5.94 |
250 |
17.60 |
223.7 |
-5.91 |
|
260 |
17.65 |
223.1 |
-5.85 |
260 |
17.68 |
222.9 |
-5.81 |
|
270 |
17.73 |
222.6 |
-5.76 |
270 |
17.75 |
222.0 |
-5.73 |
|
280 |
17.80 |
222.0 |
-5.68 |
280 |
17.83 |
221.1 |
-5.63 |
|
290 |
17.88 |
221.4 |
-5.58 |
290 |
17.90 |
220.2 |
-5.54 |
|
300 |
17.94 |
220.9 |
-5.62 |
300 |
17.97 |
219.6 |
-5.46 |
|
310 |
18.01 |
220.5 |
-5.44 |
310 |
18.03 |
219.3 |
-5.39 |
|
320 |
18.07 |
220.2 |
-5.37 |
320 |
18.09 |
219.3 |
-5.33 |
|
330 |
18.12 |
219.9 |
-5.32 |
330 |
18.14 |
219.6 |
-5.29 |
|
340 |
18.16 |
219.8 |
-5.27 |
340 |
18.19 |
220.3 |
-5.25 |
|
350 |
18.21 |
219.7 |
-5.22 |
350 |
18.23 |
221.2 |
-5.23 |
|
360 |
18.24 |
219.7 |
-5.19 |
360 |
18.26 |
222.1 |
-5.22 |
|
370 |
18.27 |
219.8 |
-5.16 |
370 |
18.28 |
222.9 |
-5.21 |
|
380 |
18.29 |
220.0 |
-5.15 |
380 |
18.31 |
223.5 |
-5.20 |
|
390 |
18.31 |
220.3 |
-5.13 |
390 |
18.33 |
223.9 |
-5.18 |
|
400 |
18.32 |
220.6 |
-5.13 |
400 |
18.34 |
224.0 |
-5.18 |
*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 (mm) |
Vertical distance (mm) |
G (dBi) |
TA (K) |
G/T (dB) |
Tloss (K) |
Remark |
|
3.518 |
3.403 |
21.10 |
225.0 |
-2.37 |
5.7 |
Per DL6WU formula |
|
3.820 |
3.580 |
21.24 |
223.1 |
-2.24 |
5.7 |
For max G/T |
|
3.720 |
3.180 |
21.07 |
220.3 |
-2.36 |
5.7 |
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 |
15.25 |
22.19 |
25.30 |
17.94 |
34.4 |
35.6 |
222.5 |
-8.22 |
5.7 |
|
Vertical |
15.31 |
20.16 |
14.70 |
20.16 |
35.0 |
33.8 |
223.8 |
-8.19 |
4.9 |
Horizontal polarisation patterns
Vertical polarisation patterns
