ANTENNA QY20905XL1D2
ANTENNA QY20905XL1D2
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) |
|
9 |
4465 |
14.22 |
23.39 |
20.15 |
17.27 |
37.0 |
41.0 |
236.3 |
-9.52 |
5.8 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
141.500 |
146.000 |
4.500 |
198.9 |
1.08:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
D4 |
D5 |
DQ3 |
DQ4 |
All elements made of Al rods Ǿ5 mm The height of all rectangles is 500 mm All dimensions given in milimetres |
|
Pos |
0 |
220 |
390 |
506 |
871 |
1494 |
2206 |
2994 |
3832 |
4465 |
|
|
Length |
1016 |
1004 |
800 |
955 |
951 |
925 |
910 |
890 |
516 |
498 |
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) |
|
|
I0JXX 8 |
2.04 |
12.11 |
200.1 |
3.00:1 |
3.46 |
3.17 |
18.10 |
9.3 |
257.3 |
-3.86 |
|
DG0OPK 9 |
2.07 |
11.45 |
28.4 |
1.11:1 |
3.04 |
2.72 |
17.34 |
5.7 |
231.9 |
-4.16 |
|
DK7ZB 8 |
2.09 |
12.01 |
28.0 |
1.26:1 |
3.40 |
3.10 |
18.02 |
4.8 |
253.6 |
-3.87 |
|
G0KSC 9OWA |
2.09 |
11.99 |
49.1 |
1.30:1 |
3.33 |
3.04 |
17.96 |
4.9 |
247.0 |
-3.82 |
|
RA3AQ 9S |
2.12 |
12.04 |
47.1 |
1.08:1 |
3.35 |
3.06 |
18.02 |
4.7 |
246.5 |
-3.75 |
|
M2 9SSB |
2.12 |
11.96 |
200.6 |
1.26:1 |
3.33 |
3.04 |
17.92 |
10.8 |
245.9 |
-3.84 |
|
WiMo WX220 XPOL |
2.13 |
11.23 |
202.0 |
1.08:1 |
2.94 |
2.94 |
17.44 |
8.4 |
300.8 |
-5.19 |
|
Gulf Alpha 9 |
2.13 |
11.62 |
203.3 |
1.15:1 |
3.26 |
2.97 |
17.64 |
4.6 |
266.2 |
-4.46 |
|
Gulf Alpha 9 XPOL |
2.13 |
11.60 |
203.9 |
1.15:1 |
3.12 |
3.12 |
17.62 |
5.0 |
267.6 |
-4.50 |
|
DJ9BV 2.1 |
2.13 |
11.89 |
44.9 |
1.30:1 |
3.33 |
3.04 |
17.87 |
5.8 |
255.2 |
-4.05 |
|
QY20905XL1D2 |
2.14 |
12.07 |
198.9 |
1.08:1 |
3.62 |
2.88 |
17.97 |
5.8 |
234.7 |
-3.58 |
|
OZ5HF 9 |
2.16 |
11.52 |
38.0 |
1.15:1 |
3.21 |
2.92 |
17.47 |
3.0 |
272.6 |
-4.74 |
|
YU7EF 9 |
2.16 |
11.84 |
49.8 |
1.17:1 |
3.20 |
2.89 |
17.74 |
5.3 |
236.6 |
-3.84 |
|
F9FT 11 |
2.17 |
11.78 |
21.5 |
1.25:1 |
3.26 |
2.97 |
17.75 |
5.3 |
251.0 |
-4.10 |
|
CC 13B2 |
2.17 |
11.79 |
21.1 |
1.37:1 |
3.33 |
3.01 |
17.78 |
5.9 |
257.9 |
-4.18 |
|
K1FO 11 |
2.18 |
11.97 |
44.0 |
1.29:1 |
3.30 |
3.00 |
17.90 |
4.3 |
248.0 |
-3.89 |
|
CC 215WB |
2.19 |
11.78 |
17.4 |
1.47:1 |
3.36 |
3.07 |
17.78 |
6.6 |
266.6 |
-4.33 |
|
Vine 9 FD |
2.22 |
11.93 |
50.0 |
1.07:1 |
3.21 |
2.91 |
17.80 |
9.4 |
230.0 |
-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 |
15.43 |
226.4 |
-8.11 |
|
110 |
14.64 |
266.9 |
-9.62 |
110 |
15.58 |
221.3 |
-7.86 |
|
120 |
15.19 |
252.8 |
-8.83 |
120 |
15.71 |
218.9 |
-7.68 |
|
130 |
15.45 |
247.2 |
-8.48 |
130 |
15.82 |
219.4 |
-7.58 |
|
140 |
15.64 |
243.2 |
-8.21 |
140 |
15.91 |
221.6 |
-7.54 |
|
150 |
15.79 |
240.2 |
-8.01 |
150 |
16.00 |
223.0 |
-7.47 |
|
160 |
15.91 |
238.0 |
-7.85 |
160 |
16.09 |
223.2 |
-7.39 |
|
170 |
16.03 |
236.5 |
-7.70 |
170 |
16.19 |
223.8 |
-7.30 |
|
180 |
16.13 |
235.5 |
-7.58 |
180 |
16.27 |
225.4 |
-7.25 |
|
190 |
16.23 |
234.9 |
-7.47 |
190 |
16.36 |
227.6 |
-7.20 |
|
200 |
16.32 |
234.5 |
-7.37 |
200 |
16.44 |
229.6 |
-7.16 |
|
210 |
16.40 |
234.3 |
-7.29 |
210 |
16.52 |
230.6 |
-7.10 |
|
220 |
16.49 |
234.2 |
-7.20 |
220 |
16.61 |
230.7 |
-7.01 |
|
230 |
16.57 |
234.2 |
-7.12 |
230 |
16.70 |
230.0 |
-6.91 |
|
240 |
16.66 |
234.3 |
-7.03 |
240 |
16.80 |
229.0 |
-6.79 |
|
250 |
16.74 |
234.3 |
-6.95 |
250 |
16.89 |
228.4 |
-6.69 |
|
260 |
16.82 |
234.4 |
-6.87 |
260 |
16.98 |
228.2 |
-6.59 |
|
270 |
16.89 |
234.5 |
-6.80 |
270 |
17.06 |
228.6 |
-6.52 |
|
280 |
16.97 |
234.7 |
-6.73 |
280 |
17.13 |
229.6 |
-6.47 |
|
290 |
17.03 |
234.7 |
-6.67 |
290 |
17.19 |
231.1 |
-6.44 |
|
300 |
17.09 |
234.9 |
-6.61 |
300 |
17.25 |
232.9 |
-6.41 |
|
310 |
17.15 |
235.0 |
-6.55 |
310 |
17.29 |
234.9 |
-6.41 |
|
320 |
17.19 |
235.1 |
-6.51 |
320 |
17.33 |
237.0 |
-6.41 |
|
330 |
17.23 |
235.1 |
-6.48 |
330 |
17.36 |
239.0 |
-6.42 |
|
340 |
17.27 |
235.4 |
-6.44 |
340 |
17.38 |
241.0 |
-6.43 |
|
350 |
17.30 |
235.6 |
-6.41 |
350 |
17.39 |
242.9 |
-6.46 |
|
360 |
17.32 |
235.8 |
-6.40 |
|
|
|
|
|
370 |
17.33 |
236.1 |
-6.39 |
|
|
|
|
|
380 |
17.35 |
236.3 |
-6.38 |
|
|
|
|
|
390 |
17.36 |
236.6 |
-6.37 |
|
|
|
|
|
400 |
17.36 |
236.8 |
-6.38 |
|
|
|
|
*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 (mm) |
Vertical distance (mm) |
G (dBi) |
TA (K) |
G/T (dB) |
Tloss (K) |
Remark |
|
2.984 |
2.984 |
19.39 |
242.0 |
-4.45 |
4.3 |
Per DL6WU formula |
|
3.300 |
3.880 |
19.46 |
239.8 |
-4.34 |
4.3 |
For max G/T |
|
3.380 |
1.720 |
18.60 |
229.1 |
-5.00 |
4.3 |
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 |
14.22 |
23.39 |
20.15 |
17.27 |
37.0 |
41.0 |
236.3 |
-9.52 |
5.8 |
|
Vertical |
14.16 |
23.35 |
17.74 |
20.53 |
41.2 |
37.2 |
231.7 |
-9.49 |
5.8 |
Horizontal polarisation patterns
Vertical polarisation patterns
