ANTENNA QY21210XL2D7
ANTENNA QY21210XL2D7
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) |
|
12 |
7015 |
15.83 |
34.00 |
22.05 |
15.91 |
31.8 |
32.8 |
226.1 |
-7.71 |
4.0 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
141.600 |
146.000 |
4.400 |
200.9 |
1.08:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
DQ1 |
All elements of Al tubes Ǿ10 mm The height of rectangles 522 mm All dimensions given in milimetres |
|
Pos |
0 |
100 |
280 |
381 |
746 |
1362 |
2072 |
|
|
Length |
1012 |
1024 |
820 |
935 |
935 |
904 |
524 |
|
|
|
DQ2 |
DQ3 |
DQ4 |
DQ5 |
DQ6 |
DQ7 |
|
|
|
Pos |
2825 |
3654 |
4555 |
5406 |
6315 |
7015 |
|
|
|
Length |
504 |
490 |
478 |
470 |
464 |
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) |
|
|
QY21210XL2D7 |
3.37 |
13.68 |
200.9 |
1.08:1 |
3.92 |
4.32 |
19.74 |
4.0 |
222.9 |
-1.59 |
|
DK7ZB 11 |
3.40 |
13.68 |
27.9 |
1.27:1 |
3.94 |
3.71 |
19.61 |
5.0 |
234.3 |
-1.94 |
|
UA9TC 12RS |
3.40 |
13.55 |
51.7 |
1.09:1 |
3.80 |
3.56 |
19.46 |
5.1 |
218.2 |
-1.78 |
|
G0KSC 12LFA |
3.41 |
13.64 |
50.1 |
1.18:1 |
3.90 |
3.70 |
19.58 |
4.3 |
221.2 |
-1.72 |
|
MBI 3.4 |
3.42 |
13.58 |
37.7 |
1.62:1 |
3.87 |
3.62 |
19.49 |
9.2 |
227.7 |
-1.93 |
|
G0KSC 12LFA 2R |
3.43 |
13.46 |
50.3 |
1.06:1 |
3.95 |
3.75 |
19.48 |
4.9 |
220.5 |
-1.80 |
|
InnoV 12 LFA |
3.43 |
13.56 |
49.3 |
1.07:1 |
3.80 |
3.60 |
19.47 |
5.4 |
218.9 |
-1.78 |
|
Gulf Alpha 14 |
3.44 |
13.24 |
198.0 |
1.21:1 |
3.71 |
3.44 |
19.14 |
5.5 |
229.6 |
-2.32 |
|
Gulf Alpha 114 XPOL |
3.44 |
13.25 |
200.5 |
1.21:1 |
3.57 |
3.57 |
19.14 |
5.5 |
231.8 |
-2.37 |
|
YU7EF 12 |
3.49 |
13.67 |
45.4 |
1.77:1 |
3.85 |
3.60 |
19.55 |
6.1 |
221.1 |
-1.75 |
|
SM5BSZ 11 |
3.51 |
13.95 |
54.4 |
3.06:1 |
4.05 |
3.80 |
19.81 |
6.3 |
238.8 |
-1.82 |
|
SM5BSZ 11A |
3.53 |
14.01 |
52.3 |
3.03:1 |
4.13 |
3.92 |
19.93 |
6.1 |
245.4 |
-1.82 |
|
17LQD EKM#1 |
3.59 |
13.30 |
50.0 |
1.23:1 |
3.75 |
3.52 |
19.21 |
4.2 |
242.1 |
-2.48 |
|
17LQD EKM#2 |
3.59 |
13.39 |
50.0 |
1.25:1 |
3.75 |
3.50 |
19.32 |
4.5 |
227.5 |
-2.10 |
|
DL6WU 14 |
3.61 |
13.63 |
51.4 |
1.28:1 |
3.94 |
3.70 |
19.53 |
2.6 |
246.9 |
-2.24 |
|
DJ9BV 3.6 |
3.61 |
13.67 |
53.5 |
1.30:1 |
4.00 |
3.78 |
19.57 |
5.4 |
249.7 |
-2.25 |
|
K1FO 15 |
3.64 |
13.76 |
39.1 |
1.30:1 |
3.94 |
3.71 |
19.67 |
4.8 |
233.0 |
-1.85 |
|
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 |
16.25 |
236.2 |
-7.47 |
|
110 |
15.87 |
266.0 |
-8.37 |
110 |
16.49 |
227.4 |
-7.07 |
|
120 |
16.32 |
250.2 |
-7.66 |
120 |
16.65 |
224.6 |
-6.85 |
|
130 |
16.56 |
243.7 |
-7.30 |
130 |
16.76 |
226.1 |
-6.77 |
|
140 |
16.73 |
239.1 |
-7.05 |
140 |
16.85 |
229.1 |
-6.74 |
|
150 |
16.87 |
235.9 |
-6.85 |
150 |
16.94 |
229.6 |
-6.66 |
|
160 |
16.97 |
233.8 |
-6.77 |
160 |
17.06 |
226.8 |
-6.48 |
|
170 |
17.06 |
232.3 |
-6.64 |
170 |
17.17 |
223.5 |
-6.31 |
|
180 |
17.17 |
231.3 |
-6.53 |
180 |
17.27 |
221.9 |
-6.18 |
|
190 |
17.26 |
230.7 |
-6.43 |
190 |
17.36 |
222.1 |
-6.09 |
|
200 |
17.35 |
229.9 |
-6.25 |
200 |
17.43 |
223.5 |
-6.05 |
|
210 |
17.47 |
229.6 |
-6.19 |
210 |
17.50 |
225.7 |
-6.02 |
|
220 |
17.51 |
229.0 |
-6.09 |
220 |
17.56 |
228.0 |
-6.00 |
|
230 |
17.54 |
228.6 |
-6.02 |
230 |
17.62 |
229.9 |
-5.98 |
|
240 |
17.63 |
227.9 |
-5.91 |
240 |
17.69 |
231.1 |
-5.94 |
|
250 |
17.73 |
227.3 |
-5.81 |
250 |
17.75 |
231.5 |
-5.88 |
|
260 |
17.76 |
226.4 |
-5.71 |
260 |
17.83 |
231.0 |
-5.79 |
|
270 |
17.83 |
225.7 |
-5.62 |
270 |
17.91 |
229.9 |
-5.69 |
|
280 |
17.91 |
225.2 |
-5.53 |
280 |
17.99 |
228.5 |
-5.59 |
|
290 |
17.98 |
224.7 |
-5.44 |
290 |
18.07 |
227.1 |
-5.48 |
|
300 |
18.11 |
224.3 |
-5.38 |
300 |
18.14 |
225.7 |
-5.38 |
|
310 |
18.18 |
224.0 |
-5.30 |
310 |
18.21 |
224.6 |
-5.29 |
|
320 |
18.24 |
223.6 |
-5.24 |
320 |
18.28 |
223.9 |
-5.21 |
|
330 |
18.24 |
223.5 |
-5.19 |
330 |
18.34 |
223.7 |
-5.14 |
|
340 |
18.35 |
223.3 |
-5.13 |
340 |
18.39 |
224.1 |
-5.10 |
|
350 |
18.39 |
223.4 |
-5.09 |
350 |
18.42 |
225.0 |
-5.09 |
|
360 |
18.43 |
223.6 |
-5.05 |
360 |
18.45 |
226.2 |
-5.08 |
|
370 |
18.46 |
223.8 |
-5.02 |
370 |
18.48 |
227.3 |
-5.07 |
|
380 |
18.49 |
224.2 |
-5.00 |
380 |
18.50 |
227.9 |
-5.06 |
|
390 |
18.51 |
224.6 |
-4.99 |
390 |
18.53 |
228.1 |
-5.04 |
|
400 |
18.52 |
225.0 |
-4.99 |
400 |
18.55 |
227.8 |
-5.01 |
|
410 |
18.54 |
225.5 |
-4.98 |
410 |
18.57 |
227.4 |
-4.98 |
|
420 |
18.55 |
225.9 |
-4.98 |
420 |
18.58 |
226.9 |
-4.96 |
|
|
|
|
|
430 |
18.60 |
226.3 |
-4.93 |
|
|
|
|
|
440 |
18.60 |
225.7 |
-4.92 |
|
|
|
|
|
450 |
18.61 |
225.1 |
-4.90 |
|
|
|
|
|
460 |
18.61 |
224.7 |
-4.89 |
|
|
|
|
|
470 |
18.61 |
224.3 |
-4.88 |
*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) |
Remark |
|
3797 |
3684 |
21.71 |
223.0 |
-1.77 |
Per DL6WU formula |
|
3920 |
4320 |
21.89 |
222.9 |
-1.59 |
For max G/T |
|
|
|
|
|
|
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 |
15.83 |
34.00 |
22.05 |
15.91 |
31.8 |
32.8 |
226.1 |
-7.71 |
4.0 |
|
Vertical |
16.04 |
22.36 |
13.09 |
17.49 |
30.4 |
29.8 |
235.7 |
-7.68 |
4.6 |
Horizontal polarisation patterns
Vertical polarisation patterns
