220822 Tonna 2m (144 - 146MHz) 2x11 Crossed Yagi
220822 Tonna 2m (144 - 146MHz) 2x11 Crossed Yagi
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- 220822 Tonna 2m (144 - 146MHz) 2x11 Crossed Yagi
Tonna beam-HF-VHF-UHF antennas
220822 Tonna 2m (144 - 146MHz) 2x11 Crossed Yagi
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Item Cost | Finance Option | Deposit | Monthly Payments | Total Cost |
---|---|---|---|---|
£164.95
|
12 Months 14.9% APR
|
£16.50
|
£14.21
|
£187.07
|
£164.95
|
18 Months 14.9% APR
|
£16.50
|
£9.48
|
£187.07
|
£164.95
|
24 Months 14.9% APR
|
£16.50
|
£7.11
|
£187.07
|
£164.95
|
36 Months 14.9% APR
|
£16.50
|
£4.74
|
£187.07
|
£164.95
|
48 Months 14.9% APR
|
£16.50
|
£3.55
|
£187.07
|
£164.95
|
12 Months 19.5% APR
|
£16.50
|
£14.78
|
£193.90
|
£164.95
|
18 Months 19.5% APR
|
£16.50
|
£9.86
|
£193.90
|
£164.95
|
24 Months 19.5% APR
|
£16.50
|
£7.39
|
£193.90
|
£164.95
|
36 Months 19.5% APR
|
£16.50
|
£4.93
|
£193.90
|
£164.95
|
48 Months 19.5% APR
|
£16.50
|
£3.70
|
£193.90
|
Radiation at 144.5 MHz
Effective electrical length : 2.20 l
Isotropic gain. : 14.0 dBi
Aperture angle @ -3 dB
- E-plane : 2 x 18.3°
- H-plane : 2 x 20.3°
First side lobe set
- E-plane : - 18 dB @ 50°
- H-plane : - 12.5 dB @ 50°
Rear protection : - 18.5 dB
Average stray radiation
- E-plane : - 36 dB
- H-plane : - 24 dB
Bandwidth
Gain @ -1 dB : 140 to 148 MHz
Nominal impedance : 50 W
Impedance match bandwidth @ SWR<1.3/1 : 139.5 to 146.7 MHz
Acceptable RF power (continous duty : 1000 W
Required phase delay between frontmost
and rearmost driven element : 59°
Array of 2 or 4 antennas
(optimized stacking distance, from center to
center of elements, for minimal side lobe
radiation)
Electrical distance : 1.46 l
Practical distance : 3.05 m
Mechanical data
Connector : N
Overall length : 4.62 m
Mass : 4.2 kg
Effective wind load : 0.2 m2
Approximate wind load (25m/s - 55 mph) : 7.6 daN
Approximate wind load (45m/s - 100 mph) : 24.5 daN