ANTENNA Y21108XL1
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) |
|
11 |
6000 |
15.03 |
33.10 |
28.01 |
18.03 |
33.8 |
37.0 |
227.2 |
-8.53 |
4.9 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
|
|
Lowest |
Highest |
||
|
142.000 |
146.100 |
198.3 |
1.07:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
D4 |
D5 |
D6 |
D7 |
D8 |
D9 |
|
Pos |
0 |
130 |
321 |
412 |
742 |
1294 |
1962 |
2722 |
3539 |
4388 |
5272 |
6000 |
|
Length |
1016 |
990 |
864 |
943 |
946 |
926 |
905 |
891 |
879 |
861 |
853 |
835 |
|
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) |
|
|
BQH 12J |
2.80 |
12.80 |
50.0 |
1.01:1 |
3.67 |
3.40 |
18.83 |
4.3 |
246.2 |
-2.93 |
|
CT1FFU 10C |
2.82 |
13.04 |
27.2 |
1.23:1 |
3.62 |
3.31 |
18.93 |
4.2 |
222.9 |
-2.40 |
|
M2 12 |
2.84 |
12.68 |
37.0 |
1.13:1 |
3.48 |
3.20 |
18.54 |
5.4 |
232.5 |
-2.97 |
|
KF2YN Boxkite12 |
2.84 |
14.90 |
48.5 |
1.22:1 |
6.00 |
4.40 |
20.84 |
5.9 |
227.4 |
-0.58 |
|
BQH 10 |
2.86 |
13.05 |
22.6 |
1.47:1 |
3.69 |
3.43 |
19.00 |
7.0 |
232.5 |
-2.51 |
|
WB9UWA 12 |
2.87 |
12.73 |
23.9 |
1.47:1 |
3.48 |
3.20 |
18.61 |
7.0 |
223.0 |
-2.72 |
|
DK7ZB 10 |
2.87 |
13.00 |
25.8 |
1.61:1 |
3.87 |
3.60 |
19.17 |
6.8 |
247.5 |
-2.62 |
|
Y21108XL1 |
2.88 |
12.88 |
198.3 |
1.07:1 |
3.84 |
3.42 |
18.89 |
4.9 |
228.0 |
-2.53 |
|
K1FO 13 |
2.89 |
12.94 |
24.7 |
1.38:1 |
3.64 |
3.39 |
18.88 |
4.6 |
239.2 |
-2.76 |
|
Y21110XL2 |
2.94 |
12.98 |
200.6 |
1.08:1 |
3.84 |
3.52 |
19.01 |
4.0 |
226.4 |
-2.39 |
|
M2 20 XPOL |
2.97 |
13.11 |
200.1 |
1.20:1 |
3.64 |
3.64 |
19.09 |
6.3 |
241.7 |
-2.59 |
|
G0KSC 11 LFA |
2.98 |
13.11 |
48.3 |
1.06:1 |
3.78 |
3.65 |
19.14 |
3.0 |
224.9 |
-2.23 |
|
UA9TC 11RS |
2.98 |
13.09 |
50.9 |
1.10:1 |
3.66 |
3.37 |
19.01 |
5.0 |
223.0 |
-2.34 |
|
G0KSC 11OWL |
3.00 |
13.16 |
49.8 |
1.42:1 |
3.69 |
3.44 |
19.09 |
7.7 |
224.6 |
-2.27 |
|
BVO-3WL |
3.01 |
13.43 |
52.7 |
3.08:1 |
3.90 |
3.70 |
19.38 |
8.6 |
253.1 |
-2.50 |
|
G0KSC 11LFA3R |
3.01 |
13.00 |
50.1 |
1.08:1 |
3.60 |
3.33 |
18.92 |
4.0 |
223.0 |
-2.41 |
|
YU7EF 11 |
3.04 |
13.07 |
49.0 |
1.62:1 |
3.56 |
3.30 |
18.87 |
4.7 |
222.6 |
-2.46 |
|
F9FT 16 |
3.06 |
12.64 |
20.8 |
1.37:1 |
3.54 |
3.26 |
18.63 |
6.0 |
241.3 |
-3.05 |
|
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 |
16.06 |
214.7 |
-7.24 |
|
110 |
|
|
|
110 |
16.18 |
211.6 |
-7.06 |
|
120 |
|
|
|
120 |
16.29 |
210.6 |
-6.93 |
|
130 |
16.06 |
248.0 |
-7.87 |
130 |
16.38 |
211.8 |
-6.86 |
|
140 |
|
|
|
140 |
|
|
|
|
150 |
16.47 |
238.0 |
-7.28 |
150 |
16.52 |
216.6 |
-6.82 |
|
160 |
|
|
|
160 |
|
|
|
|
170 |
16.74 |
232.5 |
-6.91 |
170 |
16.69 |
216.9 |
-6.66 |
|
180 |
|
|
|
180 |
|
|
|
|
190 |
16.96 |
229.4 |
-6.63 |
190 |
16.86 |
217.2 |
-6.49 |
|
200 |
|
|
|
200 |
|
|
|
|
210 |
17.15 |
227.2 |
-6.39 |
210 |
17.01 |
217.6 |
-6.35 |
|
220 |
|
|
|
220 |
|
|
|
|
230 |
17.32 |
225.6 |
-6.19 |
230 |
17.16 |
217.2 |
-6.20 |
|
240 |
|
|
|
240 |
|
|
|
|
250 |
17.49 |
224.3 |
-6.00 |
250 |
17.32 |
216.2 |
-6.01 |
|
260 |
|
|
|
260 |
17.40 |
215.8 |
-5.93 |
|
270 |
17.65 |
223.5 |
-5.82 |
270 |
17.48 |
215.7 |
-5.84 |
|
280 |
|
|
|
280 |
17.55 |
215.9 |
-5.78 |
|
290 |
17.79 |
223.0 |
5.67 |
290 |
17.62 |
216.5 |
-5.72 |
|
300 |
17.85 |
222.9 |
-5.61 |
300 |
17.68 |
217.4 |
-5.68 |
|
310 |
17.91 |
222.9 |
-5.55 |
310 |
17.73 |
218.6 |
-5.65 |
|
320 |
17.97 |
223.0 |
-5.49 |
320 |
17.78 |
219.9 |
-5.63 |
|
330 |
18.01 |
223.1 |
-5.45 |
330 |
17.82 |
221.4 |
-5.62 |
|
340 |
18.06 |
223.3 |
-5.41 |
340 |
17.85 |
223.0 |
-5.62 |
|
350 |
18.09 |
223.6 |
-5.38 |
350 |
17.87 |
224.7 |
-5.63 |
|
360 |
18.12 |
223.9 |
-5.36 |
360 |
|
|
|
|
370 |
18.15 |
224.3 |
-5.34 |
|
|
|
|
|
380 |
18.17 |
224.7 |
-5.32 |
|
|
|
|
|
390 |
18.18 |
225.1 |
-5.32 |
|
|
|
|
|
400 |
18.20 |
225.5 |
-5.31 |
|
|
|
|
|
410 |
18.20 |
225.9 |
-5.32 |
|
|
|
|
*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 |
|
3478 |
3278 |
20.92 |
224.9 |
-2.60 |
Per DL6WU formula |
|
3840 |
3420 |
21.04 |
228.0 |
-2.53 |
For max G/T |
|
3840 |
1280 |
19.28 |
218.8 |
-4.12 |
For lowest temperature |
STACKING DIAGRAMS FOR MAX G/T
STACKING DIAGRAMS FOR LOWEST TEMPERATURE
