ANTENNA QY21008XL5D5
ANTENNA QY21008XL5D5
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) |
|
10 |
4685 |
14.23 |
24.51 |
24.72 |
16.23 |
38.0 |
40.4 |
234.5 |
-9.48 |
3.2 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
139.800 |
146.300 |
6.500 |
198.4 |
1.08:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
DQ1 |
DQ2 |
DQ3 |
DQ4 |
DQ5 |
All elements made of Al rods Ǿ8mm The height of all rectangles is 500 All dimensions given in milimetres |
|
Pos |
0 |
160 |
320 |
411 |
703 |
1106 |
1606 |
2312 |
3136 |
3958 |
4685 |
|
|
Length |
1024 |
1024 |
832 |
930 |
927 |
909 |
545 |
513 |
503 |
489 |
477 |
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) |
|
|
QY21006XL5D5 |
2.25 |
12.08 |
198.4 |
1.08:1 |
3.62 |
3.04 |
18.04 |
3.2 |
235.5 |
-3.53 |
|
G0KSC 9OWL |
2.28 |
12.15 |
49.0 |
1.20:1 |
3.28 |
2.97 |
18.00 |
6.4 |
229.5 |
-3.46 |
|
KF2YN Boxkite 10 |
2.29 |
14.29 |
49.0 |
1.14:1 |
4.49 |
3.89 |
20.25 |
5.6 |
225.9 |
-1.13 |
|
G4CQM CQM12UX |
2.32 |
11.94 |
50.2 |
1.06:1 |
3.20 |
2.89 |
17.82 |
4.0 |
231.6 |
-3.68 |
|
Flexa 224 |
2.34 |
11.52 |
60.4 |
1.09:1 |
3.50 |
3.30 |
17.66 |
30.1 |
259.2 |
-4.33 |
|
RA3AQ 9 |
2.35 |
12.38 |
49.2 |
1.10:1 |
3.40 |
3.13 |
18.31 |
5.6 |
234.3 |
-3.24 |
|
CT1FFU 9 |
2.38 |
12.23 |
28.1 |
1.15:1 |
3.26 |
2.97 |
18.08 |
3.6 |
226.8 |
-3.33 |
|
ZL1RS 9 |
2.38 |
12.24 |
48.7 |
2.19:1 |
3.30 |
3.01 |
18.13 |
5.6 |
227.2 |
-3.28 |
|
Eagle 10 |
2.38 |
12.28 |
23.6 |
1.33:1 |
3.44 |
3.16 |
18.27 |
6.0 |
243.0 |
-3.43 |
|
G4CQM CQM12UC |
2.39 |
12.15 |
49.4 |
1.03:1 |
3.30 |
3.01 |
18.05 |
5.2 |
235.6 |
-3.54 |
|
DK7ZB 9 |
2.39 |
12.41 |
27.5 |
1.23:1 |
3.56 |
3.30 |
18.45 |
6.2 |
250.5 |
-3.39 |
|
Vine 10 FD |
2.45 |
12.27 |
47.6 |
1.08:1 |
3.35 |
3.04 |
18.17 |
9.5 |
226.7 |
-3.23 |
|
DD0VF 9 |
2.46 |
12.47 |
25.0 |
1.16:1 |
3.48 |
3.18 |
18.44 |
4.4 |
235.8 |
-3.14 |
|
YU7EF 10LT |
2.49 |
11.84 |
45.7 |
1.13:1 |
3.13 |
2.82 |
17.69 |
5.3 |
224.3 |
-3.67 |
|
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 (loss included for Al)
STACKING
|
Horizontal distance (cm) |
G (dBi) |
TA (K) |
G/T (dB) |
Vertical distance (cm) |
G (dBi) |
TA (K) |
G/T (dB) |
|
100 |
|
|
|
100 |
15.55 |
227.9 |
-8.01 |
|
110 |
15.34 |
250.0 |
-8.63 |
110 |
15.69 |
223.2 |
-7.78 |
|
120 |
15.56 |
240.4 |
-8.24 |
120 |
15.81 |
221.6 |
-7.63 |
|
130 |
15.71 |
236.0 |
-8.01 |
130 |
15.91 |
223.1 |
-7.56 |
|
140 |
15.83 |
233.6 |
-7.84 |
140 |
15.98 |
226.2 |
-7.55 |
|
150 |
15.94 |
232.4 |
-7.71 |
150 |
16.05 |
228.1 |
-7.52 |
|
160 |
16.03 |
231.9 |
-7.61 |
160 |
16.14 |
227.6 |
-7.42 |
|
170 |
16.12 |
232.0 |
-7.52 |
170 |
16.24 |
226.8 |
-7.30 |
|
180 |
16.21 |
232.4 |
-7.44 |
180 |
16.32 |
227.4 |
-7.23 |
|
190 |
16.29 |
232.9 |
-7.37 |
190 |
16.39 |
220.3 |
-7.20 |
|
200 |
16.38 |
233.5 |
-7.29 |
200 |
16.45 |
231.7 |
-7.18 |
|
210 |
16.46 |
234.0 |
-7.22 |
210 |
16.51 |
233.6 |
-7.16 |
|
220 |
16.54 |
234.5 |
-7.15 |
220 |
16.58 |
234.6 |
-7.11 |
|
230 |
16.62 |
234.9 |
-7.08 |
230 |
16.65 |
234.7 |
-7.04 |
|
240 |
16.71 |
235.2 |
-6.99 |
240 |
16.73 |
234.0 |
-6.95 |
|
250 |
16.79 |
235.3 |
-6.91 |
250 |
16.82 |
233.1 |
-6.84 |
|
260 |
16.87 |
235.4 |
-6.83 |
260 |
16.90 |
232.2 |
-6.74 |
|
270 |
16.94 |
235.3 |
-6.76 |
270 |
16.99 |
231.6 |
-6.64 |
|
280 |
17.01 |
235.2 |
-6.69 |
280 |
17.07 |
231.3 |
-6.56 |
|
290 |
17.08 |
235.1 |
-6.62 |
290 |
17.14 |
231.6 |
-6.49 |
|
300 |
17.14 |
234.9 |
-6.55 |
300 |
17.20 |
232.2 |
-6.44 |
|
310 |
17.19 |
234.7 |
-6.50 |
310 |
17.26 |
233.2 |
-6.40 |
|
320 |
17.24 |
234.5 |
-6.45 |
320 |
17.30 |
234.4 |
-6.39 |
|
330 |
17.28 |
234.3 |
-6.40 |
330 |
17.34 |
235.9 |
-6.37 |
|
340 |
17.31 |
234.2 |
-6.37 |
340 |
17.37 |
237.5 |
-6.38 |
|
350 |
17.33 |
234.2 |
-6.35 |
350 |
17.39 |
239.3 |
-6.39 |
|
360 |
17.35 |
234.2 |
-6.33 |
|
|
|
|
|
370 |
17.37 |
234.2 |
-6.31 |
|
|
|
|
|
380 |
17.37 |
234.3 |
-6.30 |
|
|
|
|
|
390 |
16.38 |
234.5 |
-6.31 |
|
|
|
|
|
400 |
16.39 |
234.6 |
-6.30 |
|
|
|
|
*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 |
|
3195 |
3013 |
20.08 |
236.0 |
-3.65 |
3.2 |
Per DL6WU formula |
|
3620 |
3040 |
20.19 |
235.5 |
-3.53 |
3.2 |
For max G/T |
|
3620 |
3040 |
20.19 |
235.5 |
-3.53 |
3.2 |
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 |
14.23 |
24.51 |
24.72 |
16.23 |
38.0 |
40.4 |
234.5 |
-9.48 |
3.2 |
|
Vertical |
14.17 |
20.79 |
14.60 |
22.93 |
40.4 |
38.0 |
237.5 |
-9.59 |
2.9 |
Horizontal polarisation patterns
Vertical polarisation patterns
