Tonna 220804 2m 4 element Antenna

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SKU
220804
£74.95 £62.46
Quick Overview

"2m 4 element 8.9dBi gain ""N"" socket 0.93m long".

Electrical data  
   
Radiation at 144.5 MHz  
Effective electrical length 0.375 l
Isotropic gain 9.1 dBi
Aperture angle @ -3 dB  
- E-plane
2 x 29.3°
- H-plane
2 x 43.2°
First side lobe set  
- E-plane
None
- H-plane
None
Rear protection - 16 dB
Average stray radiation  
- E-plane
- 31 dB
- H-plane
- 21 dB
Bandwidth  
Gain @ -1 dB 142 to 149 MHz
Nominal impedance 50 W
Impedance match bandwidth @ SWR<1.3/1 143 to 147 MHz
Acceptable RF power (continous duty) 1000 W
Array of 2 or 4 antennas  
(optimized stacking distance, from center to  
center of elements, for minimal side lobe  
radiation)  
- E-plane - Electrical distance
0.85 l
- E-plane - Practical distance
1.76 m
- H-plane - Electrical distance
0.85 l
- H-plane - Practical distance
1.76 m
   
Mechanical data  
   
Connector N
Overall length 0.93 m
Mass 1.0 kg
Effective wind load  
- Horizontal polarisation
0.02 m2
- Vertical polarisation
0.05 m2
Approximate wind load (25m/s - 55 mph)  
- Horizontal polarization
0.8 daN
- Vertical polarization
2.4 daN
Approximate wind load (45m/s - 100 mph)  
- Horizontal polarization
2.0 daN
- Vertical polarization
: 6.5 daN
More Information
Manufacturer Tonna
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