ANTENNA Y21408XL5
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) |
|
14 |
9235 |
16.60 |
26.75 |
21.12 |
17.76 |
29.0 |
30.8 |
223.6 |
-6.90 |
4.6 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
|
|
Lowest |
Highest |
||
|
140.700 |
146.000 |
199.1 |
1.05:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
D4 |
D5 |
D6 |
D7 |
D8 |
D9 |
D10 |
D11 |
D12 |
|
Pos |
0 |
265 |
390 |
525 |
919 |
1566 |
2288 |
3089 |
3934 |
4828 |
5752 |
6655 |
7584 |
8476 |
9235 |
|
Length |
1008 |
1016 |
844 |
945 |
935 |
917 |
901 |
885 |
867 |
859 |
853 |
845 |
843 |
841 |
831 |
|
All elements made of Al tubes Ǿ8mm - All dimensions given in milimetres - 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) |
|
|
G0KSC 14LFA3R |
4.23 |
14.44 |
48.8 |
1.07:1 |
4.19 |
4.00 |
20.35 |
2.4 |
216.5 |
-0.86 |
|
YU7EF 14M |
4.24 |
14.23 |
48.6 |
1.07:1 |
4.07 |
3.85 |
20.08 |
7.0 |
220.1 |
-1.20 |
|
UA9TC 14RS |
4.24 |
14.33 |
49.5 |
1.06:1 |
4.13 |
3.80 |
20.22 |
5.2 |
216.7 |
-0.99 |
|
G0KSC 14 LFA |
4.30 |
14.51 |
47.1 |
1.22:1 |
4.24 |
4.02 |
20.41 |
5.5 |
218.1 |
-0.82 |
|
KF2YN Boxkite 16 |
4.30 |
15.85 |
50.5 |
1.16:1 |
5.50 |
5.10 |
21.83 |
6.2 |
227.4 |
0.41 |
|
InnoV 14 LFA |
4.32 |
14.45 |
48.6 |
1.10:1 |
4.18 |
3.97 |
20.34 |
6.6 |
215.6 |
-0.85 |
|
YU7EF 14 |
4.37 |
14.48 |
41.0 |
2.30:1 |
4.21 |
4.00 |
20.33 |
8.8 |
220.0 |
-0.94 |
|
YU7EF 14LT |
4.37 |
13.91 |
47.8 |
1.29:1 |
3.89 |
3.64 |
19.60 |
11.7 |
211.0 |
-1.49 |
|
K1FO 17 |
4.40 |
14.44 |
27.7 |
1.25:1 |
4.24 |
4.02 |
20.34 |
4.9 |
229.5 |
-1.12 |
|
DJ9BV 4.4 |
4.41 |
14.32 |
38.3 |
1.36:1 |
4.27 |
4.07 |
20.18 |
6.6 |
251.5 |
-1.68 |
|
Y21408XL5 |
4.44 |
14.26 |
199.1 |
1.05:1 |
5.22 |
5.34 |
20.60 |
4.6 |
219.0 |
-0.66 |
|
SHARK 20 |
4.47 |
14.34 |
42.8 |
1.05:1 |
4.33 |
4.10 |
20.19 |
3.9 |
258.5 |
-1.79 |
|
I0JXX 16 |
4.47 |
14.36 |
30.4 |
1.05:1 |
4.05 |
4.05 |
20.24 |
8.4 |
217.5 |
-0.98 |
|
CC17B2 |
4.49 |
14.53 |
200.1 |
1.20:1 |
4.27 |
4.07 |
20.43 |
5.9 |
228.6 |
-1.01 |
|
RA3AQ-14 |
4.61 |
14.71 |
50.0 |
1.19:1 |
4.27 |
4.07 |
20.55 |
5.0 |
219.1 |
-0.71 |
|
G4CQM 16 |
4.64 |
14.55 |
50.9 |
1.78:1 |
4.39 |
4.18 |
20.47 |
8.8 |
234.6 |
-1.08 |
|
YU7EF 15M |
4.68 |
14.59 |
48.6 |
1.03:1 |
4.21 |
4.00 |
20.40 |
7.0 |
221.7 |
-0.89 |
|
DK7ZB 14 |
4.73 |
14.92 |
26.9 |
1.50:1 |
4.59 |
4.39 |
20.87 |
6.8 |
233.0 |
-0.65 |
|
DG7YBN 16 |
4.74 |
14.79 |
46.6 |
1.18:1 |
4.45 |
4.60 |
20.79 |
6.1 |
222.4 |
-0.53 |
|
G0KSC 15LFA |
4.75 |
14.72 |
49.9 |
1.17:1 |
4.60 |
4.45 |
20.72 |
5.9 |
215.0 |
-0.45 |
|
InnoV 15 LFA |
4.76 |
14.73 |
49.0 |
1.17:1 |
4.60 |
4.45 |
20.74 |
6.6 |
215.4 |
-0.44 |
|
K1FO 18 |
4.78 |
14.37 |
199.9 |
1.32:1 |
4.36 |
4.16 |
20.62 |
2.8 |
228.6 |
-0.82 |
|
InnoV 15 OWL |
4.78 |
14.79 |
52.2 |
1.32:1 |
4.36 |
4.15 |
20.66 |
7.6 |
217.9 |
-0.57 |
|
M2 28 XPOL |
4.81 |
15.18 |
200.1 |
5.19:1 |
4.83 |
4.83 |
21.14 |
13.9 |
243.1 |
-0.57 |
|
DJ9BV 4.8 |
4.82 |
14.63 |
49.7 |
1.29:1 |
4.40 |
4.19 |
20.48 |
6.6 |
242.8 |
-1.22 |
|
Z(ohms) - measured on 144.100 MHz Bandwidth – VSWR measured on 145.000 MHz |
||||||||||
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 |
17.56 |
223.1 |
-5.91 |
|
110 |
|
|
|
110 |
17.71 |
219.2 |
-5.69 |
|
120 |
|
|
|
120 |
17.83 |
217.8 |
-5.54 |
|
130 |
17.48 |
244.1 |
-6.39 |
130 |
17.91 |
219.6 |
-5.50 |
|
140 |
|
|
|
140 |
|
|
|
|
150 |
17.88 |
239.4 |
-5.90 |
150 |
18.03 |
225.6 |
-5.49 |
|
160 |
|
|
|
160 |
|
|
|
|
170 |
18.11 |
235.7 |
-5.61 |
170 |
18.18 |
225.1 |
-5.33 |
|
180 |
|
|
|
180 |
|
|
|
|
190 |
18.27 |
233.6 |
-5.41 |
190 |
18.34 |
224.4 |
-5.16 |
|
200 |
|
|
|
200 |
|
|
|
|
210 |
18.42 |
232.1 |
-5.23 |
210 |
18.49 |
224.1 |
-5.00 |
|
220 |
|
|
|
220 |
|
|
|
|
230 |
18.56 |
230.5 |
-5.06 |
230 |
18.63 |
224.8 |
-4.88 |
|
240 |
|
|
|
240 |
|
|
|
|
250 |
18.68 |
228.7 |
-4.90 |
250 |
18.75 |
226.3 |
-4.79 |
|
260 |
|
|
|
260 |
|
|
|
|
270 |
18.81 |
226.6 |
-4.73 |
270 |
18.86 |
227.2 |
-4.69 |
|
280 |
|
|
|
280 |
|
|
|
|
290 |
18.93 |
224.4 |
-4.57 |
290 |
18.99 |
226.1 |
-4.54 |
|
300 |
|
|
|
300 |
|
|
|
|
310 |
19.06 |
222.2 |
-4.40 |
310 |
19.13 |
223.8 |
-4.36 |
|
320 |
|
|
|
320 |
|
|
|
|
330 |
19.18 |
220.5 |
-4.24 |
330 |
19.26 |
221.6 |
-4.18 |
|
-340 |
|
|
|
340 |
19.33 |
220.9 |
-4.1 |
|
350 |
19.30 |
219.4 |
-4.10 |
350 |
19.38 |
220.7 |
-4.05 |
|
360 |
19.36 |
219.0 |
-4.03 |
360 |
19.43 |
220.7 |
-4.00 |
|
370 |
19.41 |
218.9 |
-3.98 |
370 |
19.48 |
220.8 |
-3.95 |
|
380 |
19.46 |
218.8 |
-3.93 |
380 |
19.52 |
221.0 |
-3.91 |
|
390 |
19.50 |
218.9 |
-3.89 |
390 |
19.56 |
221.1 |
-3.87 |
|
400 |
19.54 |
219.0 |
-3.85 |
400 |
|
|
|
|
410 |
19.57 |
219.3 |
-3.83 |
410 |
19.63 |
221.3 |
-3.81 |
|
420 |
19.60 |
219.5 |
-3.80 |
420 |
|
|
|
|
430 |
19.63 |
219.8 |
-3.78 |
430 |
19.68 |
221.3 |
-3.76 |
|
440 |
19.66 |
220.1 |
-3.75 |
440 |
|
|
|
|
450 |
19.68 |
220.3 |
-3.74 |
450 |
19.72 |
221.0 |
-3.71 |
|
460 |
19.70 |
220.6 |
-3.72 |
460 |
|
|
|
|
470 |
19.71 |
220.7 |
-3.72 |
470 |
19.76 |
220.4 |
-3.66 |
|
480 |
19.73 |
220.9 |
-3.70 |
480 |
19.77 |
220.0 |
-3.64 |
|
490 |
19.74 |
221.1 |
-3.69 |
490 |
19.78 |
219.6 |
-3.62 |
|
500 |
19.75 |
221.2 |
-3.69 |
500 |
19.79 |
219.1 |
-3.61 |
|
510 |
19.76 |
221.3 |
-3.68 |
510 |
19.80 |
218.7 |
-3.59 |
|
|
19.76 |
221.5 |
-3.68 |
520 |
19.80 |
218.3 |
-3.58 |
|
|
19.77 |
221.6 |
-3.68 |
530 |
19.80 |
218.1 |
-3.57 |
|
|
|
|
|
540 |
19.80 |
218.0 |
-3.57 |
|
|
|
|
|
550 |
19.80 |
218.4 |
-3.58 |
*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.
BEST DISTANCES FOR 4 ANTENNAS IN H-STACK
|
Horizontal distance (cm) |
Vertical distance (cm) |
G (dBi) |
TA (K) |
G/T (dB) |
Remark |
|
4155 |
3917 |
22.42 |
219.4 |
-1.00 |
Per DL6WU formula |
|
5220 |
5340 |
22.75 |
219.0 |
-0.66 |
For max G/T |
|
3880 |
1180 |
20.38 |
217.4 |
-3.00 |
For lowest temperature I |
|
3880 |
5340 |
22.50 |
218.2 |
-0.89 |
For lowest temperature II |
STACKING DIAGRAMS FOR MAX G/T
STACKING DIAGRAMS FOR LOWEST TEMPERATURE I
STACKING DIAGRAMS FOR LOWEST TEMPERATURE II
