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- 220317 Tonna 2m 17 element Radiation at 144.3 MHz
220317 Tonna 2m 17 element Radiation at 144.3 MHz
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Item Cost | Finance Option | Deposit | Monthly Payments | Total Cost |
---|---|---|---|---|
£289.96
|
12 Months 14.9% APR
|
£29.00
|
£24.99
|
£328.84
|
£289.96
|
18 Months 14.9% APR
|
£29.00
|
£16.66
|
£328.84
|
£289.96
|
24 Months 14.9% APR
|
£29.00
|
£12.49
|
£328.84
|
£289.96
|
36 Months 14.9% APR
|
£29.00
|
£8.33
|
£328.84
|
£289.96
|
48 Months 14.9% APR
|
£29.00
|
£6.25
|
£328.84
|
£289.96
|
12 Months 19.5% APR
|
£29.00
|
£25.99
|
£340.84
|
£289.96
|
18 Months 19.5% APR
|
£29.00
|
£17.32
|
£340.84
|
£289.96
|
24 Months 19.5% APR
|
£29.00
|
£12.99
|
£340.84
|
£289.96
|
36 Months 19.5% APR
|
£29.00
|
£8.66
|
£340.84
|
£289.96
|
48 Months 19.5% APR
|
£29.00
|
£6.50
|
£340.84
|
Radiation at 144.3 MHz
Effective electrical length : 5.01 l
Isotropic gain : 17.0 dBi
Aperture angle @ -3 dB
- E-plane : 2 x 14.0°
- H-plane : 2 x 14.9°
First side lobe set
- E-plane : - 18 dB @ 36°
- H-plane : - 14 dB @ 37°
Rear protection : - 29 dB
Average stray radiation
- E-plane : - 35 dB
- H-plane : - 27 dB
Bandwidth
Gain @ -1 dB : 141 to 149 MHz
Nominal impedance : 50 W
Impedance match bandwidth @ SWR<1.3/1 : 143 to 146 MHz
Maximum RF power (peak, SSB/CW) : 1000 W
Array of 2 or 4 antennas
(optimized stacking distance, from centre to
centre of elements, for minimal side lobe
radiation)
- E-plane - Electrical distance : 2.15 l
- E-plane - Practical distance : 4.47 m
- H-plane - Electrical distance : 2.15 l
- H-plane - Practical distance : 4.47 m
Mechanical data
Connector : N
Overall length : 10.45 m
Mass : 18.5 kg
Effective wind load
- Horizontal polarization : 0.73 m2
Approximate wind load (25m/s - 55 mph)
- Horizontal polarization : 27.8 daN
Approximate wind load (45m/s - 100 mph)
- Horizontal polarization : 89.7 daN