ANTENNA X61812XL4Q

SINGLE ANTENNA
PERFORMANCES:
| No of ele | L (mm) | G (dBi) | G (dBd) | F/B (dB) | F/Sh (dB) | F/Sv (dB) | Hor (◦) | Ver (◦) | Tlos (K) | 
| 18 | 
 16105 
 | 16.15 | 14.00 | 25.00 | 23.31 | 16.73 | 32.2 | 27.0 | 4.8 | 
WORKING CONDITION:
| Frequency for SWR=1.5 (MHz) | Z (Ώ) at 50.150 MHz | SWR at 50.300 MHz | ||
| Lowest | Highest | Bandwidth | ||
| 49.550 | 50.680 | 1.130 | 200.3 | 1.01:1 | 
DIMENSIONS:
| 
 | Ref | De1 | D1/D2 | D3/D4 | D5/D6 | D7/D8 | D9/D10 | D11/D12 | D13/D14 | D15/D16 | All elements: Al tubes Ǿ12 mm All dimensions given in milimetres | 
| Pos | 0 | 808 | 1928 | 3567 | 5638 | 7454 | 9936 | 12108 | 14386 | 16105 | |
| Length | 2952 | 2626 | 2692 | 2684 | 2656 | 2644 | 2606 | 2606 | 2592 | 2570 | |
| Height | 0 | ±145 | ±545 | ±1150 | ±1560 | ±1830 | ±2055 | ±2185 | ±2185 | ±2105 | 
No boom correction included.
CONSTRUCTION OF RADIATOR

Construction of radiator: H = 2626 mm, v = 145 mm, material aluminum tube Ø12 mm
COMPARISON
| TYPE OF ANTENNA | SINGLE ANTENA | OPTIMAL STACKING | 75% STACKING | ||||||||||||
| 
 L (λ) | 
 GAIN (dBd) | Z (ohms) | VSWR Band width | ||||||||||||
| Spacing (m) | 4 ant | E 2 ant | H 2 ant | Spacing (m) | 4 Ant | E 2 Ant | H 2 Ant | ||||||||
| E | H | Gain (dBd) | Gain (dBd) | Gain (dBd) | E | H | Gain (dBd) | Gain (dBd) | Gain (dBd) | ||||||
| InnoV 10 LFA | 2.58 | 11.98 | 49.2 | 1.08:1 | 9.04 | 8.16 | 17.78 | 14.86 | 14.84 | 6.78 | 6.12 | 16.58 | 14.39 | 14.32 | |
| YU7EF 10 | 2.59 | 12.50 | 50.5 | 1.07:1 | 10.06 | 9.14 | 18.44 | 15.45 | 15.45 | 7.54 | 6.85 | 17.36 | 15.00 | 14.94 | |
| X61812XL4Q | 2.69 | 14.00 | 200.3 | 1.01:1 | 12.80 | 15.80 | 20.12 | 17.04 | 17.10 | 9.60 | 11.85 | 19.63 | 16.74 | 16.84 | |
| G0KSC 10LFA | 2.96 | 13.05 | 50.3 | 1.08:1 | 10.23 | 9.47 | 18.93 | 15.96 | 15.96 | 7.67 | 7.10 | 17.69 | 15.47 | 15.40 | |
| G0KSC 11 OWL-FD | 3.00 | 13.18 | 50.4 | 1.11:1 | 10.50 | 9.73 | 19.09 | 16.11 | 16.12 | 7.88 | 7.30 | 17.87 | 15.62 | 15.55 | |
| EAntenna 50LFA10 | 3.05 | 13.03 | 48.9 | 1.14:1 | 10.22 | 9.47 | 18.92 | 15.96 | 15.96 | 7.67 | 7.10 | 17.67 | 15.47 | 15.40 | |
| YU7EF 11 | 3.13 | 13.12 | 50.0 | 1.06:1 | 10.41 | 9.63 | 19.00 | 16.03 | 16.03 | 7.81 | 7.22 | 17.76 | 15.54 | 15.47 | |
| G0KSC 11 BV LFA | 3.37 | 13.63 | 47.1 | 1.10:1 | 10.97 | 10.25 | 19.55 | 16.57 | 16.57 | 8.23 | 7.69 | 18.29 | 16.06 | 16.00 | |
| M² 6M11JKV | 3.52 | 13.99 | 27.3 | 1.25:1 | 11.94 | 11.33 | 19.92 | 16.92 | 16.93 | 8.96 | 8.50 | 18.67 | 16.38 | 16.36 | |
| InnoV 12 LFA | 3.82 | 13.99 | 47.9 | 1.15:1 | 11.54 | 10.84 | 19.91 | 16.92 | 16.92 | 8.66 | 8.13 | 18.60 | 16.40 | 16.40 | |
| BVO 18 Rope Yagi | 5.03 | 15.01 | 52.4 | 1.11:1 | 13.39 | 12.81 | 20.95 | 17.95 | 17.95 | 10.05 | 9.61 | 19.66 | 17.39 | 17.37 | |
| Z(ohms) - measured on 50.150 MHz Bandwidth – VSWR measured on 50.300 MHz Loss included for Aluminum, KF2YN correction applied | |||||||||||||||
DIAGRAMS (no loss included, KF2YN correction not included)
 
 
SWR DIAGRAMS (loss included for Al)


STACKING
| Optimal stacking, 2 antennas horizontally stacked at (m) | G (dBi) | G (dBd) | Hor (◦) | Ver (◦) | 
| 
 12.80 
 | 19.19 | 17.04 | 12.4 | 27.0 | 
| These are true values (loss included for aluminum, KF2YN correction applied) | ||||


| Optimal stacking, 2 antennas vertically stacked at (m) | G (dBi) | G (dBd) | Hor (◦) | Ver (◦) | 
| 
 15.80 
 | 19.25 | 17.10 | 32.4 | 9.6 | 
| These are true values (loss included for aluminum, KF2YN correction applied) | ||||
 
 
| Horizontal distance (m) | Vertical distance (m) | G (dBi) | G (dBd) | Hor (◦) | Ver (◦) | 
| 12.80 | 
 15.80 
 | 22.27 | 20.12 | 12.4 | 9.6 | 
| These are true values (loss included for aluminum, KF2YN correction applied) | |||||
 
 
| 75% stacking, 2 antennas horizontally stacked at (m) | G (dBi) | G (dBd) | Hor (◦) | Ver (◦) | 
| 
 9.60 
 | 18.89 | 16.74 | 15.6 | 26.8 | 
| These are true values (loss included for aluminum, KF2YN correction applied) | ||||
 
 
| 75% stacking, 2 antennas vertically stacked at (m) | G (dBi) | G (dBd) | Hor (◦) | Ver (◦) | 
| 
 11.85 
 | 19.01 | 16.84 | 32.0 | 12.6 | 
| These are true values (loss included for aluminum, KF2YN correction applied) | ||||
 
 
| 75% stacking, 4 antennas in H stack, | G (dBi) | G (dBd) | Hor (◦) | Ver (◦) | |
| Horizontal distance (m) | Vertical distance (m) | ||||
| 9.60 | 
 11.85 
 | 21.78 | 19.63 | 15.6 | 12.6 | 
| These are true values (loss included for aluminum, KF2YN correction applied) | |||||
 
 