ANTENNA QY21808XL5D11
ANTENNA QY21808XL5D11
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) |
|
18 |
12245 |
17.54 |
33.04 |
22.16 |
18.36 |
26.6 |
27.2 |
214.0 |
-5.76 |
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 |
200.4 |
1.05:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
DQ1 |
DQ2 |
DQ1 |
DQ2 |
|
Pos |
0 |
200 |
350 |
426 |
728 |
1292 |
1968 |
2745 |
3576 |
4374 |
|
Length |
1012 |
1012 |
856 |
942 |
950 |
926 |
906 |
887 |
523 |
503 |
|
|
DQ3 |
DQ4 |
DQ5 |
DQ6 |
DQ7 |
DQ8 |
DQ9 |
DQ10 |
DQ11 |
|
|
Pos |
5284 |
6142 |
7056 |
7924 |
8796 |
9708 |
10596 |
11487 |
12245 |
|
|
Length |
493 |
483 |
477 |
469 |
462 |
456 |
450 |
444 |
438 |
|
|
All elements made of Al rods Ǿ8mm The height of all rectangles is 500 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) |
|
|
QY21808XL5D11 |
5.88 |
15.39 |
200.4 |
1.05:1 |
5.06 |
5.42 |
21.47 |
5.7 |
209.4 |
+0.41 |
|
BVO-6WL |
6.00 |
15.65 |
44.9 |
1.14:1 |
4.85 |
4.85 |
21.59 |
7.1 |
226.7 |
+0.19 |
|
G0KSC 18 LFA |
6.12 |
15.69 |
47.9 |
1.33:1 |
4.77 |
4.56 |
21.55 |
5.3 |
210.5 |
+0.47 |
|
InnoV 18 LFA |
6.14 |
15.66 |
48.7 |
1.35:1 |
4.73 |
4.56 |
21.52 |
7.7 |
211.0 |
+0.43 |
|
AF9Y 22 |
6.14 |
15.73 |
49.9 |
2.65:1 |
5.01 |
4.85 |
21.66 |
13.1 |
221.4 |
+0.36 |
|
RA3AQ 18 |
6.28 |
16.09 |
54.9 |
1.13:1 |
5.30 |
5.30 |
22.12 |
8.1 |
222.3 |
+0.80 |
|
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 |
18.17 |
216.6 |
-5.16 |
|
110 |
17.83 |
229.8 |
-5.76 |
110 |
18.42 |
213.8 |
-4.85 |
|
120 |
18.19 |
225.3 |
-5.31 |
120 |
18.60 |
212.9 |
-4.65 |
|
130 |
18.46 |
222.7 |
-4.99 |
130 |
18.73 |
213.3 |
-4.53 |
|
140 |
18.66 |
220.4 |
-4.74 |
140 |
18.84 |
214.1 |
-4.43 |
|
150 |
18.81 |
218.8 |
-4.56 |
150 |
18.94 |
213.8 |
-4.33 |
|
160 |
18.94 |
217.9 |
-4.41 |
160 |
19.03 |
212.5 |
-4.21 |
|
170 |
19.04 |
217.3 |
-4.30 |
170 |
19.12 |
211.5 |
-4.10 |
|
180 |
19.13 |
217.1 |
-4.21 |
180 |
19.20 |
210.9 |
-4.01 |
|
190 |
19.20 |
217.0 |
-4.13 |
190 |
19.27 |
210.7 |
-3.93 |
|
200 |
19.28 |
217.1 |
-4.06 |
200 |
19.34 |
210.8 |
-3.86 |
|
210 |
19.34 |
217.2 |
-4.00 |
210 |
19.41 |
211.0 |
-3.80 |
|
220 |
19.40 |
217.3 |
-3.94 |
220 |
19.47 |
211.4 |
-3.75 |
|
230 |
19.47 |
217.4 |
-3.87 |
230 |
19.53 |
211.9 |
-3.70 |
|
240 |
19.52 |
217.5 |
-3.82 |
240 |
19.59 |
212.5 |
-3.65 |
|
250 |
19.58 |
217.4 |
-3.76 |
250 |
19.64 |
213.2 |
-3.61 |
|
260 |
19.64 |
217.2 |
-3.70 |
260 |
19.69 |
213.9 |
-3.58 |
|
270 |
19.70 |
216.9 |
-3.63 |
270 |
19.75 |
214.7 |
-3.54 |
|
280 |
19.76 |
216.5 |
-3.56 |
280 |
19.80 |
215.4 |
-3.50 |
|
290 |
19.81 |
215.9 |
-3.50 |
290 |
19.84 |
215.9 |
-3.47 |
|
300 |
19.87 |
215.3 |
-3.43 |
300 |
19.90 |
216.2 |
-3.42 |
|
310 |
19.93 |
214.6 |
-3.35 |
310 |
19.95 |
216.3 |
-3.37 |
|
320 |
19.98 |
213.9 |
-3.29 |
320 |
20.00 |
216.2 |
-3.32 |
|
330 |
20.04 |
213.2 |
-3.22 |
330 |
20.05 |
216.0 |
-3.26 |
|
340 |
20.10 |
212.6 |
-3.14 |
340 |
20.11 |
215.7 |
-3.20 |
|
350 |
20.15 |
212.1 |
-3.08 |
350 |
20.16 |
215.3 |
-3.14 |
|
360 |
20.02 |
212.0 |
-3.21 |
360 |
20.21 |
215.0 |
-3.08 |
|
370 |
20.08 |
211.7 |
-3.14 |
370 |
20.27 |
214.6 |
-3.01 |
|
380 |
20.13 |
211.5 |
-3.09 |
380 |
20.32 |
214.1 |
-2.95 |
|
390 |
20.17 |
211.4 |
-3.05 |
390 |
20.37 |
213.6 |
-2.89 |
|
400 |
20.22 |
211.3 |
-3.00 |
400 |
20.42 |
213.1 |
-2.83 |
|
410 |
20.26 |
211.4 |
-2.96 |
410 |
20.46 |
212.6 |
-2.78 |
|
420 |
20.30 |
211.4 |
-2.92 |
420 |
20.50 |
212.2 |
-2.73 |
|
430 |
20.33 |
211.5 |
-2.89 |
430 |
20.54 |
211.8 |
-2.69 |
|
440 |
20.36 |
211.6 |
-2.86 |
440 |
20.58 |
211.5 |
-2.64 |
|
450 |
20.39 |
211.7 |
-2.83 |
450 |
20.61 |
211.2 |
-2.60 |
|
460 |
20.42 |
211.7 |
-2.80 |
460 |
20.64 |
210.9 |
-2.57 |
|
470 |
20.44 |
211.8 |
-2.79 |
470 |
20.67 |
210.5 |
-2.53 |
|
480 |
20.46 |
211.9 |
-2.77 |
480 |
20.70 |
210.2 |
-2.49 |
|
490 |
20.48 |
211.9 |
-2.75 |
490 |
20.72 |
209.9 |
-2.47 |
|
500 |
20.49 |
211.9 |
-2.74 |
500 |
20.74 |
209.7 |
-2.44 |
|
510 |
20.51 |
211.9 |
-2.72 |
510 |
20.75 |
209.4 |
-2.42 |
|
520 |
20.52 |
212.0 |
-2.71 |
520 |
20.77 |
209.2 |
-2.40 |
|
530 |
20.53 |
212.0 |
-2.70 |
530 |
20.78 |
209.0 |
-2.39 |
|
540 |
20.53 |
212.1 |
-2.70 |
540 |
20.79 |
208.9 |
-2.37 |
|
550 |
20.54 |
212.2 |
-2.69 |
550 |
20.80 |
208.9 |
-2.36 |
|
|
|
|
|
560 |
20.80 |
208.9 |
-2.37 |
|
|
|
|
|
570 |
20.81 |
209.1 |
-2.36 |
|
|
|
|
|
580 |
20.81 |
209.3 |
-2.36 |
*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 |
|
4522 |
4424 |
23.34 |
211.6 |
+0.09 |
5.7 |
Per DL6WU formula |
|
5060 |
5420 |
23.62 |
209.4 |
+0.41 |
5.7 |
For max G/T |
|
5060 |
5420 |
23.62 |
209.4 |
+0.41 |
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 |
17.54 |
33.04 |
22.16 |
18.36 |
26.6 |
27.2 |
214.0 |
-5.76 |
5.7 |
|
Vertical |
17.78 |
31.70 |
15.24 |
18.39 |
25.8 |
25.4 |
218.4 |
-5.61 |
5.7 |
Horizontal polarisation patterns
Vertical polarisation patterns
