Details
| 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 |
Additional Information
| manufacturer | Tonna |
|---|
