ANTENNA QY21708XL5D10
ANTENNA QY21708XL5D10
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) |
|
17 |
11335 |
17.30 |
29.37 |
22.30 |
18.17 |
27.2 |
28.0 |
215.0 |
-6.02 |
5.7 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
142.100 |
145.800 |
3.700 |
200.6 |
1.05:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
DQ1 |
DQ2 |
DQ1 |
All elements made of Al rods Ǿ8mm The height of all rectangles is 500 All dimensions given in milimetres |
|
Pos |
0 |
200 |
350 |
426 |
728 |
1292 |
1968 |
2742 |
3576 |
|
|
Length |
1012 |
1012 |
856 |
942 |
950 |
926 |
906 |
887 |
523 |
|
|
|
DQ2 |
DQ3 |
DQ4 |
DQ5 |
DQ6 |
DQ7 |
DQ8 |
DQ9 |
|
|
|
Pos |
4374 |
5284 |
6142 |
7056 |
7924 |
8796 |
9698 |
10586 |
11335 |
|
|
Length |
503 |
493 |
483 |
477 |
468 |
462 |
456 |
450 |
442 |
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) |
|
|
RU1AA 15 |
5.27 |
15.44 |
54.6 |
3.70:1 |
4.78 |
4.78 |
21.38 |
9.2 |
230.9 |
-0.10 |
|
M2 18XXX |
5.30 |
15.00 |
199.7 |
1.07:1 |
4.56 |
4.36 |
20.90 |
7.4 |
231.9 |
-0.60 |
|
YU7EF 16 |
5.42 |
15.15 |
43.9 |
2.50:1 |
4.46 |
4.27 |
20.95 |
7.3 |
218.9 |
-0.30 |
|
QY21708XL5D10 |
5.44 |
15.15 |
200.6 |
1.05:1 |
4.86 |
5.26 |
21.22 |
5.7 |
210.7 |
+0.14 |
|
G0KSC 17 LFA |
5.67 |
15.43 |
48.3 |
1.23:1 |
4.63 |
4.43 |
21.30 |
4.9 |
212.0 |
+0.19 |
|
InnoV 17 LFA |
5.69 |
15.36 |
50.0 |
1.26:1 |
4.59 |
4.39 |
21.22 |
7.2 |
211.8 |
+0.11 |
|
M2 19XXX |
5.71 |
15.28 |
201.1 |
1.42:1 |
4.70 |
4.52 |
21.20 |
7.7 |
231.3 |
-0.29 |
|
M2 32 XPOL |
5.74 |
15.81 |
205.4 |
3.80:1 |
5.08 |
5.08 |
21.77 |
12.8 |
232.4 |
+0.26 |
|
YU7EF 17X |
5.74 |
15.36 |
50.0 |
1.08:1 |
4.59 |
4.39 |
21.19 |
8.5 |
216.0 |
-0.02 |
|
RU1AA 17 |
5.75 |
15.64 |
50.0 |
1.08:1 |
4.81 |
5.00 |
21.55 |
8.1 |
229.6 |
+0.09 |
|
G0KSC 17OWL-FD |
5.77 |
15.62 |
112.0 |
1.10:1 |
5.15 |
5.00 |
21.63 |
7.3 |
221.1 |
+0.33 |
|
DK7ZB 17 |
5.82 |
15.61 |
26.8 |
1.19:1 |
5.01 |
4.85 |
21.59 |
8.6 |
227.8 |
+0.16 |
|
YU7EF 17 |
5.88 |
15.70 |
41.2 |
2.92:1 |
4.85 |
4.63 |
21.53 |
9.6 |
223.8 |
+0.18 |
|
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)
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 |
17.79 |
218.2 |
-5.61 |
|
110 |
17.54 |
231.7 |
-6.09 |
110 |
18.06 |
215.1 |
-5.27 |
|
120 |
17.92 |
227.3 |
-5.62 |
120 |
18.25 |
213.9 |
-5.05 |
|
130 |
18.20 |
224.5 |
-5.29 |
130 |
18.39 |
214.2 |
-4.81 |
|
140 |
18.41 |
222.2 |
-5.03 |
140 |
18.51 |
215.0 |
-4.81 |
|
150 |
18.56 |
220.6 |
-4.85 |
150 |
18.61 |
214.7 |
-4.71 |
|
160 |
18.69 |
219.6 |
-4.70 |
160 |
18.71 |
213.5 |
-4.58 |
|
170 |
18.80 |
219.0 |
-4.58 |
170 |
18.80 |
212.4 |
-4.47 |
|
180 |
18.89 |
218.8 |
-4.48 |
180 |
18.89 |
211.8 |
-4.37 |
|
190 |
18.97 |
218.6 |
-4.40 |
190 |
18.97 |
211.6 |
-4.28 |
|
200 |
19.05 |
218.6 |
-4.32 |
200 |
19.04 |
211.7 |
-4.21 |
|
210 |
19.12 |
218.7 |
-4.25 |
210 |
19.11 |
212.0 |
-4.15 |
|
220 |
19.18 |
218.7 |
-4.19 |
220 |
19.17 |
212.4 |
-4.10 |
|
230 |
19.25 |
218.8 |
-4.12 |
230 |
19.24 |
213.0 |
-4.04 |
|
240 |
19.31 |
218.7 |
-4.06 |
240 |
19.30 |
213.7 |
-4.00 |
|
250 |
19.37 |
218.5 |
-4.00 |
250 |
19.35 |
214.5 |
-3.96 |
|
260 |
19.43 |
218.2 |
-3.93 |
260 |
19.41 |
215.4 |
-3.92 |
|
270 |
19.49 |
217.8 |
-3.86 |
270 |
19.46 |
216.3 |
-3.89 |
|
280 |
19.55 |
217.2 |
-3.79 |
280 |
19.51 |
217.0 |
-3.85 |
|
290 |
19.61 |
216.5 |
-3.71 |
290 |
19.57 |
217.4 |
-3.80 |
|
300 |
19.67 |
215.8 |
-3.64 |
300 |
19.62 |
217.6 |
-3.75 |
|
310 |
19.73 |
215.1 |
-3.56 |
310 |
19.68 |
217.5 |
-3.69 |
|
320 |
19.79 |
214.3 |
-3.49 |
320 |
19.73 |
217.2 |
-3.64 |
|
330 |
19.85 |
213.6 |
-3.41 |
330 |
19.79 |
216.8 |
-3.57 |
|
340 |
19.91 |
213.0 |
-3.34 |
340 |
19.85 |
216.3 |
-3.50 |
|
350 |
19.97 |
212.4 |
-3.27 |
350 |
19.91 |
215.9 |
-3.43 |
|
360 |
20.02 |
212.0 |
-3.21 |
360 |
19.96 |
215.5 |
-3.37 |
|
370 |
20.08 |
211.7 |
-3.14 |
370 |
20.01 |
215.1 |
-3.31 |
|
380 |
20.13 |
211.5 |
-3.09 |
380 |
20.06 |
214.7 |
-3.25 |
|
390 |
20.17 |
211.4 |
-3.05 |
390 |
20.11 |
214.2 |
-3.20 |
|
400 |
20.22 |
211.3 |
-3.00 |
400 |
20.16 |
213.7 |
-3.14 |
|
410 |
20.26 |
211.4 |
-2.96 |
410 |
20.20 |
213.4 |
-3.09 |
|
420 |
20.30 |
211.4 |
-2.92 |
420 |
20.24 |
213.0 |
-3.04 |
|
430 |
20.33 |
211.5 |
-2.89 |
430 |
20.27 |
212.7 |
-3.01 |
|
440 |
20.36 |
211.6 |
-2.86 |
440 |
20.31 |
212.4 |
-2.96 |
|
450 |
20.39 |
211.7 |
-2.83 |
450 |
20.34 |
212.2 |
-2.93 |
|
460 |
20.42 |
211.7 |
-2.80 |
460 |
20.36 |
211.9 |
-2.90 |
|
470 |
20.44 |
211.8 |
-2.79 |
470 |
20.39 |
211.6 |
-2.86 |
|
480 |
20.46 |
211.9 |
-2.77 |
480 |
20.41 |
211.3 |
-2.84 |
|
490 |
20.48 |
211.9 |
-2.75 |
490 |
20.42 |
211.0 |
-2.82 |
|
500 |
20.49 |
211.9 |
-2.74 |
500 |
20.44 |
210.6 |
-2.79 |
|
510 |
20.51 |
211.9 |
-2.72 |
510 |
20.45 |
211.3 |
-2.78 |
|
520 |
20.52 |
212.0 |
-2.71 |
520 |
20.47 |
210.1 |
-2.75 |
|
530 |
20.53 |
212.0 |
-2.70 |
530 |
20.47 |
209.9 |
-2.75 |
|
540 |
20.53 |
212.1 |
-2.70 |
540 |
20.48 |
209.7 |
-2.74 |
|
550 |
20.54 |
212.2 |
-2.69 |
550 |
20.49 |
209.7 |
-2.72 |
|
|
|
|
|
560 |
20.49 |
209.8 |
-2.73 |
*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. 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 |
|
4424 |
4300 |
23.12 |
212.6 |
-0.15 |
5.7 |
Per DL6WU formula |
|
4860 |
5260 |
23.37 |
210.7 |
+0.14 |
5.7 |
For max G/T |
|
4860 |
5260 |
23.37 |
210.7 |
+0.14 |
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 |
17.30 |
29.37 |
22.30 |
18.17 |
27.2 |
28.0 |
215.0 |
-6.02 |
5.7 |
|
Vertical |
17.30 |
29.05 |
15.73 |
18.79 |
26.8 |
26.1 |
219.2 |
-6.11 |
5.7 |
Horizontal polarisation patterns
Vertical polarisation patterns
