ANTENNA X21010XL6Q
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 |
1645 |
12.66 |
23.18 |
- |
15.51 |
48.2 |
41.4 |
249.8 |
-11.32 |
2.7 |
WORKING CONDITION:
|
Frequency for SWR=1.5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
141.600 |
146.500 |
4.900 |
202.0 |
1.08:1 |
DIMENSIONS:
|
|
Ref |
De |
D1 |
D2 |
D3 |
D4 |
Dimensions given in milimetres Diameter of elements 10 milimetres No boom correction included.
|
|
Pos |
0 |
216 |
388 |
764 |
1236 |
1645 |
|
|
Length |
1010 |
792 |
910 |
912 |
932 |
909 |
|
|
Height |
0 |
±220 |
±240 |
±415 |
±545 |
±595 |
CONSTRUCTION OF RADIATOR
H =792
V = 220
Ø = 10 mm
COMPARISON (inserted in a part of VE7BQH table, where it belongs according to its boom length)
|
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) |
|
|
X21010XL6Q |
0.79 |
10.27 |
202.0 |
1.08:1 |
3.70 |
3.00 |
16.53 |
2.7 |
246.1 |
-5.23 |
|
G4CQM 6 |
1.00 |
9.46 |
56.7 |
1.83:1 |
2.60 |
2.17 |
15.44 |
7.9 |
249.7 |
-6.38 |
|
KF2YN boxkite6 |
1.04 |
12.47 |
49.9 |
1.20:1 |
3.90 |
3.00 |
18.25 |
4.6 |
263.1 |
-3.80 |
|
Vine 6 FD |
1.10 |
9.69 |
48.3 |
1.18:1 |
2.64 |
2.21 |
15.67 |
8.2 |
238.4 |
-5.95 |
|
G0KSC 6LFA |
1.13 |
9.69 |
49.3 |
1.04:1 |
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 |
|
M2 2M7 |
1.28 |
9.94 |
204.9 |
1.14:1 |
2.65 |
2.26 |
15.76 |
3.7 |
245.0 |
-5.98 |
|
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 |
|
|
|
|
110 |
13.93 |
230.8 |
-9.74 |
110 |
|
|
|
|
120 |
14.16 |
230.4 |
-9.50 |
120 |
|
|
|
|
130 |
14.34 |
231.4 |
-9.34 |
130 |
|
|
|
|
140 |
14.49 |
233.1 |
-9.22 |
140 |
|
|
|
|
150 |
14.62 |
235.5 |
-9.13 |
150 |
|
|
|
|
160 |
14.74 |
238.4 |
-9.06 |
160 |
|
|
|
|
170 |
14.85 |
241.9 |
-9.02 |
170 |
|
|
|
|
180 |
14.93 |
245.2 |
-8.99 |
180 |
|
|
|
|
190 |
15.02 |
249.5 |
-8.97 |
190 |
|
|
|
|
200 |
15.09 |
253.1 |
-8.96 |
200 |
14.90 |
244.7 |
-9.06 |
|
210 |
15.16 |
256.2 |
-8.95 |
210 |
14.99 |
246.7 |
-8.96 |
|
220 |
15.22 |
258.6 |
-8.92 |
220 |
15.06 |
246.0 |
-8.89 |
|
230 |
15.28 |
260.3 |
-8.89 |
230 |
15.10 |
247.5 |
-8.86 |
|
240 |
15.33 |
261.2 |
-8.86 |
240 |
15.12 |
248.3 |
-8.85 |
|
250 |
15.37 |
261.5 |
-8.82 |
250 |
15.15 |
248.4 |
-8.83 |
|
260 |
15.42 |
261.1 |
-8.76 |
260 |
15.21 |
246.9 |
-8.74 |
|
270 |
15.45 |
260.2 |
-8.72 |
270 |
15.31 |
244.7 |
-8.60 |
|
280 |
15.49 |
258.9 |
-8.66 |
280 |
15.40 |
243.3 |
-8.49 |
|
290 |
15.51 |
257.3 |
-8.61 |
290 |
15.48 |
243.8 |
-8.42 |
|
300 |
15.54 |
255.6 |
-8.55 |
300 |
15.55 |
246.0 |
-8.38 |
|
310 |
15.56 |
253.7 |
-8.50 |
310 |
15.59 |
249.2 |
-8.40 |
|
320 |
15.58 |
251.9 |
-8.45 |
320 |
|
|
|
|
330 |
15.59 |
250.1 |
-8.41 |
330 |
|
|
|
|
340 |
15.61 |
248.6 |
-8.37 |
340 |
|
|
|
|
350 |
15.61 |
247.2 |
-8.35 |
350 |
|
|
|
|
360 |
15.62 |
246.2 |
-8.32 |
360 |
|
|
|
|
370 |
15.62 |
245.5 |
-8.31 |
|
|
|
|
*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.
*Yellow coloured – good distances
BEST DISTANCES FOR STACK
Four antennas in H-stack
|
Horizontal distance (mm) |
Vertical distance (mm) |
G (dBi) |
TA (K) |
G/T (dB) |
Tlos (K) |
Remark |
|
2548 |
2943 |
18.48 |
255.8 |
-5.60 |
2.7 |
Per DL6WU formula |
|
3700 |
3000 |
18.68 |
246.1 |
-5.23 |
2.7 |
For max G/T |
|
1220 |
2800 |
17.11 |
233.1 |
-6.56 |
2.7 |
For lowest temperature |
Eight antennas in stack (four in horizontal and two in vertical plane)
|
Horizontal distance (mm) |
Vertical distance (mm) |
G (dBi) |
TA (K) |
G/T (dB) |
Tlos (K) |
|
3700 |
3000 |
21.71 |
244.4 |
-2.17 |
2.7 |
Eight antennas in stack (two in horizontal and four in vertical plane)
|
Horizontal distance (mm) |
Vertical distance (mm) |
G (dBi) |
TA (K) |
G/T (dB) |
Tlos (K) |
|
3500 |
2900 |
21.68 |
238.7 |
-2.10 |
2.7 |
Sixteen antennas (four in horizontal and four antennas in vertical plane)
|
Horizontal distance (mm) |
Vertical distance (mm) |
G (dBi) |
TA (K) |
G/T (dB) |
Tlos (K) |
|
3500 |
2900 |
24.69 |
240.4 |
+1.88 |
2.7 |
