ANTENNA QY21010XL2D5
ANTENNA QY21010XL2D5
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 |
5205 |
14.81 |
31.23 |
20.11 |
14.93 |
35.2 |
37.2 |
234.3 |
-8.88 |
3.5 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
142.300 |
146.400 |
4.100 |
199.1 |
1.04:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
DQ1 |
DQ2 |
DQ3 |
DQ4 |
DQ5 |
All elements of Al tubes Ǿ10 mm The height of rectangles 522 mm All dimensions given in milimetres |
|
Pos |
0 |
60 |
290 |
385 |
736 |
1350 |
2075 |
2825 |
3634 |
4525 |
5205 |
|
|
Length |
1012 |
1012 |
800 |
931 |
931 |
899 |
518 |
504 |
490 |
478 |
470 |
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) |
|
|
QY21010XL2D5 |
2.50 |
12.66 |
199.1 |
1.04:1 |
3.72 |
3.42 |
20.70 |
3.5 |
233.0 |
-2.82 |
|
G4CQM 9 |
2.52 |
12.63 |
46.4 |
2.02:1 |
3.62 |
3.35 |
18.68 |
7.3 |
244.4 |
-3.05 |
|
G0KSC 10 LFA |
2.53 |
12.61 |
48.5 |
1.05:1 |
3.48 |
3.18 |
18.54 |
2.6 |
229.8 |
-2.92 |
|
K1FO 12 |
2.53 |
12.49 |
31.1 |
1.23:1 |
3.46 |
3.18 |
18.42 |
4.3 |
240.7 |
-3.25 |
|
YU7EF 10 |
2.59 |
12.44 |
50.3 |
1.06:1 |
3.39 |
3.10 |
18.34 |
6.9 |
227.8 |
-3.08 |
|
Gulf Alpha 11 |
2.60 |
12.33 |
204.1 |
1.07:1 |
3.46 |
3.19 |
18.32 |
5.3 |
248.9 |
-3.49 |
|
Gulf Alpha 11 XPOL |
2.60 |
12.31 |
188.1 |
1.07:1 |
3.32 |
3.32 |
18.29 |
5.6 |
249.8 |
-3.53 |
|
G0KSC 10LFA+2 |
2.60 |
12.45 |
47.4 |
1.24:1 |
3.39 |
3.09 |
18.35 |
4.1 |
226.7 |
-3.06 |
|
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 |
15.84 |
234.8 |
-7.86 |
|
110 |
15.51 |
261.0 |
-8.65 |
110 |
16.05 |
226.5 |
-7.49 |
|
120 |
15.85 |
252.9 |
-8.17 |
120 |
16.19 |
223.6 |
-7.29 |
|
130 |
16.07 |
246.7 |
-7.84 |
130 |
16.30 |
225.0 |
-7.21 |
|
140 |
16.23 |
242.3 |
-7.61 |
140 |
16.37 |
228.5 |
-7.21 |
|
150 |
16.36 |
239.5 |
-7.42 |
150 |
16.45 |
230.3 |
-7.16 |
|
160 |
16.47 |
237.7 |
-7.28 |
160 |
16.54 |
229.3 |
-7.05 |
|
170 |
16.57 |
236.7 |
-7.16 |
170 |
16.64 |
227.9 |
-6.92 |
|
180 |
16.66 |
236.3 |
-7.06 |
180 |
16.73 |
228.1 |
-6.84 |
|
190 |
16.74 |
236.1 |
-6.98 |
190 |
16.81 |
230.1 |
-6.80 |
|
200 |
16.82 |
236.0 |
-6.90 |
200 |
16.87 |
233.1 |
-6.79 |
|
210 |
16.90 |
235.9 |
-6.82 |
210 |
16.94 |
236.1 |
-6.78 |
|
220 |
16.97 |
235.8 |
-6.74 |
220 |
17.00 |
238.5 |
-6.76 |
|
230 |
17.05 |
235.5 |
-6.66 |
230 |
17.07 |
239.7 |
-6.72 |
|
240 |
17.13 |
235.1 |
-6.57 |
240 |
17.15 |
239.7 |
-6.64 |
|
250 |
17.21 |
234.6 |
-6.48 |
250 |
17.24 |
238.7 |
-6.53 |
|
260 |
17.29 |
234.0 |
-6.39 |
260 |
17.33 |
237.1 |
-6.41 |
|
270 |
17.37 |
233.4 |
-6.30 |
270 |
17.42 |
235.2 |
-6.28 |
|
280 |
17.45 |
232.8 |
-6.21 |
280 |
17.51 |
233.5 |
-6.16 |
|
290 |
17.53 |
232.2 |
-6.12 |
290 |
17.60 |
232.0 |
-6.04 |
|
300 |
17.60 |
231.7 |
-6.04 |
300 |
17.68 |
230.9 |
-5.94 |
|
310 |
17.66 |
231.4 |
-5.97 |
310 |
17.75 |
230.3 |
-5.86 |
|
320 |
17.72 |
231.1 |
-5.91 |
320 |
17.81 |
230.2 |
-5.80 |
|
330 |
17.77 |
230.9 |
-5.85 |
330 |
17.86 |
230.6 |
-5.76 |
|
340 |
17.82 |
230.9 |
-5.80 |
340 |
17.90 |
231.5 |
-5.73 |
|
350 |
17.85 |
231.0 |
-5.77 |
350 |
17.93 |
232.8 |
-5.73 |
|
360 |
17.89 |
231.2 |
-5.74 |
360 |
17.94 |
234.4 |
-5.75 |
|
370 |
17.91 |
231.5 |
-5.72 |
|
|
|
|
|
380 |
17.93 |
231.9 |
-5.71 |
|
|
|
|
|
390 |
17.94 |
232.4 |
-5.71 |
|
|
|
|
|
400 |
17.95 |
232.9 |
-5.71 |
|
|
|
|
|
410 |
17.96 |
233.4 |
-5.71 |
|
|
|
|
|
420 |
17.96 |
233.9 |
-5.72 |
|
|
|
|
*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 |
|
3479 |
3261 |
20.73 |
231.3 |
-2.91 |
Per DL6WU formula |
|
3720 |
3420 |
20.85 |
234.0 |
-2.82 |
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 |
14.81 |
31.23 |
20.11 |
14.93 |
35.2 |
37.2 |
234.3 |
-8.88 |
3.5 |
|
Vertical |
14.96 |
23.18 |
12.89 |
17.87 |
35.2 |
33.6 |
239.0 |
-8.82 |
4.0 |
Horizontal polarisation patterns
Vertical polarisation patterns
