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___________________________ O TX&RX Fórum destina-se à publicações de mensagens "posts" relacionados com todos os assuntos sobre Radio Frequência. Essas mensagens têm como objectivo promover ideias, experiências, projectos, esclarecer duvidas, divulgação de actividades e publicações de novidades sobre Radio Comunicações.
Divirta-se!!
5 element 144MHz LFA-Q Quad Style Yagi – InnovAntennas
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5 element 144MHz LFA-Q Quad Style Yagi – InnovAntennas
[Tens de ter uma conta e sessão iniciada para poderes visualizar esta imagem]
A 5 element LFA-Q (Super-rigid Quad-style) Super-Light Quad Style Yagi for 144 -145MHz
The LFA-Q Packs a bigger punch than a traditional Yagi with MUCH MORE GAIN per metre of boom
If it is GAIN you want from a small boom, this is the antenna for you! Wow, Super compact boom!! Massive 11.43dBi from this antenna!
Rear mounted version pictured, Email for rear mount version pricing
Another impressive design from G0KSC, ‘The Quad has been InnovAted!’ A Quad-style antenna with full wave length loop elements which provide a number of benefits. First, if the elements are of reasonable thickness (as ours are, they are not wire!) then good bandwidth coverage can be achieved. Next, up to around 7 elements (1.5wl) much better gain per metre of boom can be achieved than would otherwise be possible from a traditional Yagi covering the same bandwidth. Finally, with the dual-boom structure and 1/2” diameter elements, the LFA-Q is extremely rigid and can stand up to some serious weather conditions!
IDEAL PORTABLE OR SOTA USE!
Despite it’s rigidity, the LFA-Q is extremely light weight and this means even in strong winds, snow and ice the LFA-Q will hold its own.
Our antennas are constructed with the best quality materials in order the best mechanical construction can be achieved, not the cheapest and most profitable! Even a digital caliper is used (with an accuracy of .01mm) to measure the elements during production to ensure they are within 0.2mm of what they should be, this ensures they work as well as our software model predicts.
- Marine grade Stainless Steel Fittings
- Original Stauff Insulation clamps
- Mill finished boom and elements for highest levels of accuracy
Performance
Gain: 11.43dBi @ 144.3MHz
F/B: 20.03dB @ 144.3MHz
Peak Gain: 11.44dBi
Gain 15m above ground: 17.28dBi
Peak F/B: 21.10dB
Power Rating: 5kw
SWR: Below 1.4.1 from 144MHz to 145MHz
Boom Length: 1.565m
Loop Height: 25cms
Weight: 2.2kg/7.5lbs
Safe Wind Speed: 160Kph/100Mph
Turning Radius: 1.5m/5ft
Vertical Stacking: 2.2m
InnovAntennas Specification
This antenna is made with a 1/2 inch (12.7mm) and 3/8 inch (9.525mm) diameter tube for the LFA-Qand the boom sections are 3/4” 19mm diameter. This antenna is not made cheaply, it is made to perform and to do so for many years with Marine Grade Stainless Steel fixings.
No figures are made up here as they are in some Ham Radio adverts, all performance figures are verified in the very latest software simulation packages with some antennas being professionally confirmed on an antenna range.
Price : Price: £129.95
£110.46 (including 20 % tax)
[Tens de ter uma conta e sessão iniciada para poderes visualizar esta imagem]
- Fonte
A 5 element LFA-Q (Super-rigid Quad-style) Super-Light Quad Style Yagi for 144 -145MHz
The LFA-Q Packs a bigger punch than a traditional Yagi with MUCH MORE GAIN per metre of boom
If it is GAIN you want from a small boom, this is the antenna for you! Wow, Super compact boom!! Massive 11.43dBi from this antenna!
Rear mounted version pictured, Email for rear mount version pricing
Another impressive design from G0KSC, ‘The Quad has been InnovAted!’ A Quad-style antenna with full wave length loop elements which provide a number of benefits. First, if the elements are of reasonable thickness (as ours are, they are not wire!) then good bandwidth coverage can be achieved. Next, up to around 7 elements (1.5wl) much better gain per metre of boom can be achieved than would otherwise be possible from a traditional Yagi covering the same bandwidth. Finally, with the dual-boom structure and 1/2” diameter elements, the LFA-Q is extremely rigid and can stand up to some serious weather conditions!
IDEAL PORTABLE OR SOTA USE!
Despite it’s rigidity, the LFA-Q is extremely light weight and this means even in strong winds, snow and ice the LFA-Q will hold its own.
Our antennas are constructed with the best quality materials in order the best mechanical construction can be achieved, not the cheapest and most profitable! Even a digital caliper is used (with an accuracy of .01mm) to measure the elements during production to ensure they are within 0.2mm of what they should be, this ensures they work as well as our software model predicts.
- Marine grade Stainless Steel Fittings
- Original Stauff Insulation clamps
- Mill finished boom and elements for highest levels of accuracy
Performance
Gain: 11.43dBi @ 144.3MHz
F/B: 20.03dB @ 144.3MHz
Peak Gain: 11.44dBi
Gain 15m above ground: 17.28dBi
Peak F/B: 21.10dB
Power Rating: 5kw
SWR: Below 1.4.1 from 144MHz to 145MHz
Boom Length: 1.565m
Loop Height: 25cms
Weight: 2.2kg/7.5lbs
Safe Wind Speed: 160Kph/100Mph
Turning Radius: 1.5m/5ft
Vertical Stacking: 2.2m
InnovAntennas Specification
This antenna is made with a 1/2 inch (12.7mm) and 3/8 inch (9.525mm) diameter tube for the LFA-Qand the boom sections are 3/4” 19mm diameter. This antenna is not made cheaply, it is made to perform and to do so for many years with Marine Grade Stainless Steel fixings.
No figures are made up here as they are in some Ham Radio adverts, all performance figures are verified in the very latest software simulation packages with some antennas being professionally confirmed on an antenna range.
Price : Price: £129.95
£110.46 (including 20 % tax)
[Tens de ter uma conta e sessão iniciada para poderes visualizar esta imagem]
- Fonte
ALF007- Administrador Fundador
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