ANTENNA Y20608XL1
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) |
|
6 |
1885 |
11.37 |
19.74 |
23.06 |
12.78 |
47.8 |
59.2 |
303.1 |
-13.43 |
2.6 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
|
|
Lowest |
Highest |
||
|
140.800 |
146.500 |
199.0 |
1.06:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
D4 |
All elements made of Al tubes Ǿ8 mm All dimensions given in milimetres No boom correction included. |
|
Pos |
0 |
65 |
290 |
366 |
718 |
1320 |
1885 |
|
|
Length |
1020 |
1020 |
828 |
933 |
929 |
913 |
893 |
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) |
|
|
Eantenna 144LFA5 |
0.87 |
8.94 |
53.4 |
1.09:1 |
2.44 |
1.99 |
14.94 |
3.2 |
237.1 |
-6.66 |
|
Y20608XL1 |
0.91 |
9.25 |
199.0 |
1.06:1 |
2.94 |
2.12 |
15.25 |
2.6 |
262.1 |
-6.78 |
|
G4CQM 6 |
1.00 |
9.46 |
56.7 |
1.83:1 |
2.60 |
2.17 |
15.44 |
7.9 |
249.7 |
-6.38 |
|
KF2YN Boxkite 6 |
1.04 |
12.47 |
49.9 |
1.20:1 |
3.90 |
3.00 |
18.25 |
4.6 |
263.1 |
-3.80 |
|
Vine 6 OWL |
1.10 |
9.69 |
48.3 |
1.18:1 |
2.64 |
2.21 |
15.67 |
8.2 |
238.4 |
-5.95 |
|
G0KSC 6 LFA |
1.13 |
9.69 |
49.5 |
1.03:1 |
2.60 |
2.19 |
15.64 |
4.0 |
236.9 |
-5.96 |
|
DD0VF 6 |
1.16 |
9.73 |
27.2 |
1.07:1 |
2.63 |
2.22 |
15.71 |
5.5 |
240.1 |
-5.94 |
|
*DD0VF 6 |
1.16 |
9.73 |
27.2 |
1.07:1 |
2.30 |
2.30 |
15.58 |
5.5 |
245.1 |
-6.16 |
|
M2 2M7 |
1.28 |
9.94 |
204.9 |
1.14:1 |
2.65 |
2.26 |
15.76 |
3.7 |
245.0 |
-5.98 |
|
*M2 2M7 |
1.28 |
9.94 |
204.9 |
1.14:1 |
2.21 |
2.03 |
15.17 |
3.7 |
239.9 |
-6.48 |
|
KF2YN Boxkite 7 |
1.32 |
13.34 |
52.7 |
1.06:1 |
4.17 |
3.40 |
19.30 |
5.2 |
245.5 |
-2.40 |
|
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
BEST DISTANCES FOR 4 ANTENNAS IN H-STACK
|
Horizontal distance (cm) |
Vertical distance (cm) |
G (dBi) |
TA (K) |
G/T (dB) |
Remark |
|
2568 |
2106 |
17.33 |
261.0 |
-6.84 |
Per DL6WU formula |
|
2940 |
2120 |
17.40 |
262.1 |
-6.78 |
For max G/T |
|
3060 |
1220 |
16.54 |
238.3 |
-7.24 |
For lowest temperature |
STACKING DIAGRAMS FOR MAX G/T
