ANTENNA QY21005XL2D3
ANTENNA QY21005XL2D3
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 |
4805 |
14.41 |
22.25 |
18.25 |
17.61 |
36.2 |
39.2 |
236.8 |
-9.33 |
6.4 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
140.900 |
146.600 |
5.700 |
199.3 |
1.05:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
D4 |
D5 |
DQ1 |
DQ2 |
DQ3 |
All elements made of Al rods Ǿ5 mm The height of all rectangles is 500 mm All dimensions given in milimetres |
|
Pos |
0 |
255 |
335 |
408 |
724 |
1259 |
1928 |
2628 |
3425 |
4215 |
4805 |
|
|
Length |
1020 |
1020 |
886 |
944 |
956 |
930 |
912 |
898 |
520 |
502 |
490 |
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) |
|
|
QY21005XL2D3 |
2.31 |
12.26 |
199.3 |
1.05:1 |
3.78 |
3.04 |
18.27 |
6.4 |
235.4 |
-3.30 |
|
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 |
|
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 |
15.48 |
227.1 |
-8.08 |
|
110 |
14.85 |
261.1 |
-9.32 |
110 |
15.66 |
222.9 |
-7.82 |
|
120 |
15.29 |
254.8 |
-8.77 |
120 |
15.80 |
221.1 |
-7.64 |
|
130 |
15.56 |
248.8 |
-8.40 |
130 |
15.93 |
221.6 |
-7.52 |
|
140 |
15.77 |
244.2 |
-8.11 |
140 |
16.04 |
222.8 |
-7.44 |
|
150 |
15.93 |
240.9 |
-7.89 |
150 |
16.15 |
223.2 |
-7.33 |
|
160 |
16.07 |
238.5 |
-7.70 |
160 |
16.25 |
222.9 |
-7.23 |
|
170 |
16.20 |
236.9 |
-7.54 |
170 |
16.35 |
223.6 |
-7.14 |
|
180 |
16.31 |
235.8 |
-7.41 |
180 |
16.44 |
225.3 |
-7.09 |
|
190 |
16.41 |
235.0 |
-7.30 |
190 |
16.52 |
227.4 |
-7.05 |
|
200 |
16.50 |
234.5 |
-7.20 |
200 |
16.61 |
229.1 |
-6.99 |
|
210 |
16.59 |
234.2 |
-7.10 |
210 |
16.69 |
230.2 |
-6.93 |
|
220 |
16.67 |
234.0 |
-7.02 |
220 |
16.78 |
230.5 |
-6.84 |
|
230 |
16.76 |
233.9 |
-6.93 |
230 |
16.88 |
230.1 |
-6.74 |
|
240 |
16.84 |
233.8 |
-6.85 |
240 |
16.97 |
229.3 |
-6.63 |
|
250 |
16.92 |
233.8 |
-6.77 |
250 |
17.06 |
228.6 |
-6.53 |
|
260 |
17.00 |
233.8 |
-6.69 |
260 |
17.15 |
228.2 |
-6.43 |
|
270 |
17.08 |
233.8 |
-6.61 |
270 |
17.23 |
228.2 |
-6.35 |
|
280 |
17.15 |
233.8 |
-6.54 |
280 |
17.31 |
228.8 |
-6.28 |
|
290 |
17.22 |
233.9 |
-6.47 |
290 |
17.38 |
229.8 |
-6.23 |
|
300 |
17.28 |
233.9 |
-6.41 |
300 |
17.43 |
231.2 |
-6.21 |
|
310 |
17.34 |
234.0 |
-6.35 |
310 |
17.48 |
232.9 |
-6.19 |
|
320 |
17.39 |
234.1 |
-6.30 |
320 |
17.52 |
234.8 |
-6.18 |
|
330 |
17.43 |
234.2 |
-6.26 |
330 |
17.55 |
236.8 |
-6.19 |
|
340 |
17.47 |
234.3 |
-6.23 |
340 |
17.58 |
238.8 |
-6.20 |
|
350 |
17.50 |
234.5 |
-6.20 |
350 |
17.59 |
240.8 |
-6.22 |
|
360 |
17.52 |
234.7 |
-6.18 |
|
|
|
|
|
370 |
17.54 |
235.0 |
-6.17 |
|
|
|
|
|
380 |
17.56 |
235.3 |
-6.15 |
|
|
|
|
|
390 |
17.57 |
235.6 |
-6.15 |
|
|
|
|
|
400 |
17.58 |
235.9 |
-6.15 |
|
|
|
|
*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 |
|
3.348 |
3.101 |
20.36 |
235.8 |
-3.37 |
6.4 |
Per DL6WU formula |
|
3.300 |
3.880 |
20.42 |
235.4 |
-3.30 |
6.4 |
For max G/T |
|
3.120 |
2.489 |
19.83 |
225.5 |
-3.70 |
6.4 |
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 |
14.42 |
22.25 |
18.95 |
17.61 |
36.2 |
39.2 |
236.7 |
-9.32 |
6.4 |
|
Vertical |
14.42 |
20.90 |
18.19 |
19.45 |
39.2 |
36.2 |
234.1 |
-9.27 |
6.4 |
Horizontal polarisation patterns
Vertical polarisation patterns
