ANTENNA Y21208XL6
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) |
|
12 |
7265 |
15.60 |
29.65 |
22.42 |
17.22 |
32.6 |
35.2 |
220.5 |
-7.84 |
4.6 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
|
|
Lowest |
Highest |
||
|
141.600 |
146.000 |
200.5 |
1.07:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
D4 |
D5 |
D6 |
D7 |
D8 |
D9 |
D10 |
|
Pos |
0 |
130 |
340 |
445 |
792 |
1419 |
2142 |
2946 |
3814 |
4694 |
5585 |
6496 |
7265 |
|
Length |
1012 |
1008 |
800 |
951 |
943 |
913 |
897 |
877 |
867 |
855 |
843 |
835 |
831 |
|
All elements made of Al tubes Ǿ9mm - 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) |
|
|
DK7ZB 11 |
3.40 |
13.68 |
27.9 |
1.27:1 |
3.94 |
3.71 |
19.61 |
5.0 |
234.3 |
-1.94 |
|
UA9TC 12RS |
3.40 |
13.55 |
51.7 |
1.09:1 |
3.80 |
3.56 |
19.46 |
5.1 |
218.2 |
-1.78 |
|
G0KSC 12LFA |
3.41 |
13.64 |
50.1 |
1.18:1 |
3.90 |
3.70 |
19.58 |
4.3 |
221.2 |
-1.72 |
|
MBI 3.4 |
3.42 |
13.58 |
37.7 |
1.62:1 |
3.87 |
3.62 |
19.49 |
9.2 |
227.7 |
-1.93 |
|
G0KSC 12LFA 2R |
3.43 |
13.46 |
50.3 |
1.06:1 |
3.95 |
3.75 |
19.48 |
4.9 |
220.5 |
-1.80 |
|
InnoV 12 LFA |
3.43 |
13.56 |
49.3 |
1.07:1 |
3.80 |
3.60 |
19.47 |
5.4 |
218.9 |
-1.78 |
|
Gulf Alpha 14 |
3.44 |
13.24 |
198.0 |
1.21:1 |
3.71 |
3.44 |
19.14 |
5.5 |
229.6 |
-2.32 |
|
Gulf Alpha 114 XPOL |
3.44 |
13.25 |
200.5 |
1.21:1 |
3.57 |
3.57 |
19.14 |
5.5 |
231.8 |
-2.37 |
|
YU7EF 12 |
3.49 |
13.67 |
45.4 |
1.77:1 |
3.85 |
3.60 |
19.55 |
6.1 |
221.1 |
-1.75 |
|
Y21208XL6 |
3.49 |
13.45 |
200.5 |
1.07:1 |
4.28 |
4.84 |
19.54 |
4.6 |
221.0 |
-1.76 |
|
SM5BSZ 11 |
3.51 |
13.95 |
54.4 |
3.06:1 |
4.05 |
3.80 |
19.81 |
6.3 |
238.8 |
-1.82 |
|
SM5BSZ 11A |
3.53 |
14.01 |
52.3 |
3.03:1 |
4.13 |
3.92 |
19.93 |
6.1 |
245.4 |
-1.82 |
|
17LQD EKM#1 |
3.59 |
13.30 |
50.0 |
1.23:1 |
3.75 |
3.52 |
19.21 |
4.2 |
242.1 |
-2.48 |
|
17LQD EKM#2 |
3.59 |
13.39 |
50.0 |
1.25:1 |
3.75 |
3.50 |
19.32 |
4.5 |
227.5 |
-2.10 |
|
DL6WU 14 |
3.61 |
13.63 |
51.4 |
1.28:1 |
3.94 |
3.70 |
19.53 |
2.6 |
246.9 |
-2.24 |
|
DJ9BV 3.6 |
3.61 |
13.67 |
53.5 |
1.30:1 |
4.00 |
3.78 |
19.57 |
5.4 |
249.7 |
-2.25 |
|
K1FO 15 |
3.64 |
13.76 |
39.1 |
1.30:1 |
3.94 |
3.71 |
19.67 |
4.8 |
233.0 |
-1.85 |
|
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 |
16.88 |
219.0 |
-6.51 |
|
110 |
|
|
|
110 |
17.00 |
215.4 |
-6.31 |
|
120 |
|
|
|
120 |
17.10 |
214.1 |
-6.19 |
|
130 |
16.92 |
237.3 |
-6.82 |
130 |
17.18 |
214.8 |
-6.12 |
|
140 |
|
|
|
140 |
17.25 |
216.3 |
-6.08 |
|
150 |
17.18 |
230.4 |
-6.43 |
150 |
|
|
|
|
160 |
|
|
|
160 |
17.38 |
217.4 |
-5.97 |
|
170 |
17.36 |
227.1 |
-6.19 |
170 |
|
|
|
|
180 |
|
|
|
180 |
17.51 |
218.4 |
-5.86 |
|
190 |
17.50 |
225.6 |
-6.02 |
190 |
|
|
|
|
200 |
|
|
|
200 |
17.64 |
220.0 |
-5.77 |
|
210 |
17.64 |
224.6 |
-5.86 |
210 |
|
|
|
|
220 |
|
|
|
220 |
17.76 |
222.4 |
-5.70 |
|
230 |
17.77 |
223.6 |
-5.71 |
230 |
|
|
|
|
240 |
|
|
|
240 |
17.88 |
224.4 |
-5.61 |
|
250 |
17.90 |
222.2 |
-5.55 |
250 |
|
|
|
|
260 |
|
|
|
260 |
18.01 |
224.1 |
-5.48 |
|
270 |
18.05 |
220.5 |
-5.39 |
270 |
|
|
|
|
280 |
|
|
|
280 |
18.16 |
221.9 |
-5.29 |
|
290 |
18.17 |
218.9 |
-5.22 |
290 |
|
|
|
|
300 |
|
|
|
300 |
18.31 |
219.3 |
-5.08 |
|
310 |
18.30 |
217.6 |
-5.06 |
310 |
|
|
|
|
320 |
|
|
|
320 |
18.45 |
217.5 |
-4.91 |
|
330 |
18.42 |
216.7 |
-4.92 |
330 |
18.51 |
217.1 |
-4.84 |
|
340 |
18.47 |
216.4 |
-4.87 |
340 |
18.57 |
217.0 |
-4.78 |
|
350 |
18.52 |
216.3 |
-4.81 |
350 |
18.62 |
217.2 |
-4.73 |
|
360 |
18.56 |
216.4 |
-4.77 |
360 |
18.66 |
217.6 |
-4.70 |
|
370 |
18.60 |
216.5 |
-4.74 |
370 |
18.69 |
218.1 |
-4.68 |
|
380 |
18.64 |
216.7 |
-4.70 |
380 |
18.72 |
218.7 |
-4.66 |
|
390 |
18.67 |
217.0 |
-4.68 |
390 |
18.74 |
219.3 |
-4.65 |
|
400 |
18.69 |
217.4 |
-4.67 |
400 |
18.76 |
219.7 |
-4.64 |
|
410 |
18.71 |
217.8 |
-4.65 |
410 |
18.77 |
220.0 |
-4.64 |
|
420 |
18.73 |
218.3 |
-4.64 |
420 |
18.78 |
220.2 |
-4.63 |
|
430 |
18.74 |
218.7 |
-4.64 |
430 |
18.79 |
220.2 |
-4.62 |
|
440 |
18.76 |
219.1 |
-4.63 |
440 |
18.80 |
220.1 |
-4.61 |
|
450 |
18.76 |
219.4 |
-4.64 |
450 |
18.80 |
219.8 |
-4.60 |
|
|
|
|
|
460 |
18.81 |
219.4 |
-4.58 |
|
|
|
|
|
470 |
18.81 |
218.9 |
-4.57 |
|
|
|
|
|
480 |
18.81 |
218.4 |
-4.56 |
*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 |
|
3706 |
3440 |
21.42 |
217.2 |
-1.92 |
Per DL6WU formula |
|
4280 |
4840 |
21.69 |
221.0 |
-1.76 |
For max G/T |
|
3580 |
1280 |
19.76 |
212.7 |
-3.52 |
For lowest temperature I |
|
3580 |
3480 |
21.39 |
217.3 |
-1.98 |
For lowest temperature II |
STACKING DIAGRAMS FOR MAX G/T
STACKING DIAGRAMS FOR LOWEST TEMPERATURE I
STACKING DIAGRAMS FOR LOWEST TEMPERATURE II
