ANTENNA QY21806XL1D11
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 |
12305 |
17.67 |
31.75 |
20.41 |
17.06 |
26.0 |
26.6 |
217.1 |
-5.69 |
7.1 |
WORKING CONDITION:
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
Lowest |
Highest |
Bandwidth |
||
142.200 |
145.900 |
3.700 |
197.5 |
1.08:1 |
DIMENSIONS:
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
D4 |
D5 |
DQ1 |
DQ2 |
Pos |
0 |
225 |
355 |
425 |
732 |
1291 |
1968 |
2738 |
3558 |
4378 |
Length |
1016 |
1014 |
836 |
943 |
955 |
933 |
916 |
898 |
524 |
506 |
|
|
DQ3 |
DQ4 |
DQ5 |
DQ6 |
DQ7 |
DQ8 |
DQ9 |
|
|
Pos |
5274 |
6156 |
7078 |
7941 |
8864 |
9773 |
10595 |
11566 |
12305 |
|
Length |
496 |
488 |
482 |
478 |
474 |
470 |
466 |
458 |
438 |
|
All elements made of Al rods Ǿ6mm 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) |
|
QY21806XL1D11 |
5.91 |
15.52 |
197.5 |
1.08:1 |
5.06 |
5.36 |
21.59 |
7.1 |
211.3 |
+0.49 |
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 |
4.60 |
21.56 |
5.3 |
210.5 |
+0.48 |
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 |
MBI 6.6 |
6.58 |
16.15 |
49.1 |
1.77:1 |
5.41 |
5.41 |
22.17 |
11.5 |
228.2 |
+0.74 |
DK7ZB 19 |
6.59 |
16.15 |
27.7 |
1.97:1 |
5.41 |
5.22 |
22.15 |
8.2 |
230.2 |
+0.68 |
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 |
17.99 |
218.4 |
-5.38 |
110 |
17.12 |
234.8 |
-6.69 |
110 |
18.32 |
214.8 |
-4.98 |
120 |
17.84 |
231.8 |
-5.85 |
120 |
18.55 |
213.5 |
-4.72 |
130 |
18.23 |
228.2 |
-5.38 |
130 |
18.71 |
214.1 |
-4.57 |
140 |
18.49 |
225.4 |
-5.06 |
140 |
18.84 |
215.4 |
-4.47 |
150 |
18.68 |
223.5 |
-4.83 |
150 |
18.95 |
215.7 |
-4.36 |
160 |
18.83 |
222.3 |
-4.66 |
160 |
19.05 |
214.7 |
-4.24 |
170 |
18.95 |
221.6 |
-4.52 |
170 |
19.15 |
213.6 |
-4.12 |
180 |
19.06 |
221.1 |
-4.40 |
180 |
19.24 |
212.9 |
-4.02 |
190 |
19.14 |
220.9 |
-4.31 |
190 |
19.32 |
212.5 |
-3.93 |
200 |
19.23 |
220.7 |
-4.22 |
200 |
19.40 |
212.4 |
-3.84 |
210 |
19.30 |
220.6 |
-4.15 |
210 |
19.47 |
212.5 |
-3.78 |
220 |
19.37 |
220.6 |
-4.08 |
220 |
19.54 |
212.7 |
-3.71 |
230 |
19.44 |
220.5 |
-4.01 |
230 |
19.61 |
213.2 |
-3.65 |
240 |
19.50 |
220.5 |
-3.95 |
240 |
19.67 |
213.9 |
-3.61 |
250 |
19.56 |
220.3 |
-3.88 |
250 |
19.73 |
214.7 |
-3.56 |
260 |
19.62 |
220.1 |
-3.82 |
260 |
19.78 |
215.7 |
-3.53 |
270 |
19.68 |
219.9 |
-3.75 |
270 |
19.83 |
216.7 |
-3.50 |
280 |
19.74 |
219.5 |
-3.69 |
280 |
19.88 |
217.7 |
-3.48 |
290 |
19.80 |
219.0 |
-3.62 |
290 |
19.93 |
218.6 |
-3.44 |
300 |
19.85 |
218.4 |
-3.55 |
300 |
19.98 |
219.3 |
-3.41 |
310 |
19.91 |
217.7 |
-3.48 |
310 |
20.03 |
219.7 |
-3.36 |
320 |
19.97 |
217.1 |
-3.41 |
320 |
20.08 |
219.8 |
-3.32 |
330 |
20.02 |
216.4 |
-3.35 |
330 |
20.14 |
218.7 |
-3.26 |
340 |
20.08 |
215.8 |
-3.27 |
340 |
10.19 |
219.5 |
-3.20 |
350 |
20.14 |
215.2 |
-3.20 |
350 |
20.25 |
219.3 |
-3.14 |
360 |
20.19 |
214.8 |
-3.14 |
360 |
20.30 |
219.1 |
-3.08 |
370 |
20.25 |
214.4 |
-3.08 |
370 |
20.35 |
218.7 |
-3.03 |
380 |
20.30 |
214.1 |
-3.02 |
380 |
20.41 |
218.3 |
-2.96 |
390 |
20.35 |
213.9 |
-2.97 |
390 |
20.46 |
217.7 |
-2.90 |
400 |
20.40 |
213.7 |
-2.91 |
400 |
20.51 |
217.1 |
-3.83 |
410 |
20.45 |
213.7 |
-2.86 |
410 |
20.56 |
216.6 |
-2.77 |
420 |
20.49 |
213.6 |
-2.82 |
420 |
20.60 |
216.0 |
-2.72 |
430 |
20.53 |
213.6 |
-2.78 |
430 |
20.64 |
215.5 |
-2.67 |
440 |
20.57 |
213.6 |
-2.74 |
440 |
20.68 |
214.9 |
-2.62 |
450 |
20.60 |
213.6 |
-2.71 |
450 |
20.72 |
214.3 |
-2.57 |
460 |
20.63 |
213.6 |
-2.68 |
460 |
20.75 |
213.8 |
-2.53 |
470 |
20.66 |
213.6 |
-2.65 |
470 |
20.78 |
213.2 |
-2.48 |
480 |
20.69 |
213.5 |
-2.62 |
480 |
20.81 |
212.7 |
-2.44 |
490 |
20.71 |
213.5 |
-2.60 |
490 |
20.84 |
212.2 |
-2.40 |
500 |
20.73 |
213.5 |
-2.58 |
500 |
20.86 |
211.8 |
-2.37 |
510 |
20.75 |
213.4 |
-2.56 |
510 |
20.88 |
211.3 |
-2.34 |
520 |
20.77 |
213.4 |
-2.54 |
520 |
20.90 |
211.0 |
-2.32 |
530 |
20.78 |
213.4 |
-2.53 |
530 |
20.91 |
210.7 |
-2.30 |
540 |
20.79 |
213.4 |
-2.52 |
540 |
20.92 |
210.5 |
-2.29 |
550 |
20.80 |
213.5 |
-2.51 |
550 |
20.93 |
210.5 |
-2.28 |
560 |
20.81 |
213.6 |
-2.50 |
560 |
20.94 |
210.5 |
-2.27 |
570 |
20.81 |
213.7 |
-2.50 |
570 |
20.94 |
210.7 |
-2.27 |
580 |
20.81 |
213.9 |
-2.51 |
580 |
20.94 |
211.0 |
-2.28 |
*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 |
4626 |
4522 |
23.50 |
214.6 |
+0.19 |
7.1 |
Per DL6WU formula |
5060 |
5360 |
23.74 |
211.3 |
+0.49 |
7.1 |
For max G/T |
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 |
17.67 |
31.75 |
20.41 |
17.06 |
26.0 |
26.6 |
217.1 |
-5.69 |
7.1 |
Vertical |
17.82 |
33.22 |
14.81 |
17.83 |
25.4 |
25.0 |
220.8 |
-5.62 |
7.4 |
Horizontal polarisation patterns
Vertical polarisation patterns