ANTENNA X21006XL3Q
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 |
12.42 |
24.80 |
- |
17.38 |
48.8 |
44.6 |
252.8 |
-11.60 |
3.6 |
WORKING CONDITION:
|
Frequency for SWR=1.5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
141.400 |
146.700 |
5.300 |
197.5 |
1.06:1 |
DIMENSIONS:
|
|
Ref |
De |
D1 |
D2 |
D3 |
D4 |
Dimensions given in milimetres Diameter of elements 6 milimetres No boom correction included.
|
|
Pos |
0 |
232 |
399 |
773 |
1222 |
1645 |
|
|
Length |
1014 |
796 |
921 |
919 |
941 |
909 |
|
|
Height |
0 |
±220 |
±225 |
±375 |
±510 |
±540 |
CONSTRUCTION OF RADIATOR
H =796
V = 220
Ø = 6 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) |
|
|
X21006XL3Q |
0.79 |
10.27 |
197.5 |
1.06:1 |
3.50 |
2.90 |
16.32 |
3.3 |
250.5 |
-5.52 |
|
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 |
13.75 |
235.9 |
-10.01 |
110 |
|
|
|
|
120 |
13.94 |
236.1 |
-9.82 |
120 |
|
|
|
|
130 |
14.10 |
237.2 |
-9.68 |
130 |
|
|
|
|
140 |
14.25 |
238.7 |
-9.56 |
140 |
|
|
|
|
150 |
14.38 |
240.9 |
-9.46 |
150 |
|
|
|
|
160 |
14.50 |
243.5 |
-9.39 |
160 |
|
|
|
|
170 |
14.61 |
246.4 |
-9.33 |
170 |
|
|
|
|
180 |
14.71 |
249.6 |
-9.28 |
180 |
|
|
|
|
190 |
14.81 |
252.7 |
-9.24 |
190 |
|
|
|
|
200 |
14.89 |
255.6 |
-9.20 |
200 |
14.83 |
243.8 |
-9.06 |
|
210 |
14.97 |
258.0 |
-9.16 |
210 |
14.91 |
245.3 |
-9.01 |
|
220 |
15.04 |
259.8 |
-9.12 |
220 |
14.96 |
247.2 |
-8.99 |
|
230 |
15.10 |
261.0 |
-9.08 |
230 |
14.98 |
148.6 |
-9.00 |
|
240 |
15.16 |
261.6 |
-9.03 |
240 |
15.01 |
248.9 |
-8.97 |
|
250 |
15.21 |
261.7 |
-8.98 |
250 |
15.05 |
247.6 |
-8.91 |
|
260 |
15.25 |
261.4 |
-8.94 |
260 |
15.13 |
245.7 |
-8.80 |
|
270 |
15.29 |
260.7 |
-8.89 |
270 |
15.22 |
244.6 |
-8.69 |
|
280 |
15.32 |
259.7 |
-8.84 |
280 |
15.30 |
245.3 |
-8.62 |
|
290 |
15.34 |
258.4 |
-8.80 |
290 |
15.36 |
248.0 |
-8.61 |
|
300 |
15.36 |
257.1 |
-8.76 |
300 |
15.40 |
252.3 |
-8.64 |
|
310 |
15.37 |
255.6 |
-8.72 |
310 |
15.42 |
257.3 |
-8.70 |
|
320 |
15.38 |
254.2 |
-8.69 |
320 |
|
|
|
|
330 |
15.39 |
252.9 |
-8.66 |
330 |
|
|
|
|
340 |
15.40 |
251.7 |
-8.63 |
340 |
|
|
|
|
350 |
15.40 |
250.7 |
-8.61 |
350 |
|
|
|
|
360 |
15.40 |
249.9 |
-8.60 |
360 |
|
|
|
*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 |
|
2528 |
2741 |
18.27 |
253.6 |
-5.77 |
3.3 |
Per DL6WU formula |
|
3500 |
2900 |
18.47 |
250.5 |
-5.52 |
3.3 |
For max G/T |
|
1160 |
2780 |
16.89 |
234.5 |
-6.86 |
3.3 |
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) |
|
3500 |
2900 |
21.49 |
250.4 |
-2.50 |
3.3 |
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 |
21.47 |
243.2 |
-2.39 |
3.3 |
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 |
24.48 |
244.0 |
+0.60 |
3.3 |
