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50LFA5

50LFA5

Peso: 6,9 Kg.
Max. Potencia: 5,0 kW

yagi antenna

yagi antenna

4,48m

17740.6-5

Rev. V1.5 - 14/01/2021

Thank you for choosing EAntenna.

 
All our products are manufactured and developed with the best materials on the market, to offer the best qualities and guarantees to our 
customers.

 The LFA antennas have an input impedance of 50 Ohm in the antenna, so no coupling is necessary. The loop is at the same time a coupling 
system and director element and this presents many advantages when modeling.

The 'real' impedance of each LFA varies greatly. But, the impedance presented at the antenna entry point is always 50 Ohm. Therefore, there 
is no limitation on the results of any optimization tool achieved with a single input impedance, but it manages to change the width and length of 
the loop keeping the impedance at 50 Ohm. This feature is very important to ensure good performance, bandwidth and low SWR in the 
antenna.

This additional flexibility also allows more lateral lobes to be suppressed and a better front-to-back (F / B) ratio compared to traditional Yagis. 
With time it is possible to achieve an excellent balance between design, F/B, gain and bandwidth.

Additionally, the proximity of the loop and the antenna entry point make the LFA less susceptible to noise and static nearby. In addition, the low 
level of the LFA lateral lobes provides a winning formula for an antenna with super low noise!

We detail the materials used, for their best use and assembly. All the fittings are made of stainless steel and the aluminum is made of T6061 or 
T6063 alloy, known as Duralumin that offers the best conditions to be weatherproof, the force of the wind and the best conductivity. The 
plastics used, are Polyamide and offer the best hardness and durability for years and years.
We offer warranty on operation, and warranty on hardware, delivering the hardware kit with some additional pieces for possible losses or 
forced breaks. In addition, we offer Allen keys and fixed mounting elements.
In the following pages you can see detailed graphics of the parts.
 

Summary of Contents for 17740.6-5

Page 1: ...s additional flexibility also allows more lateral lobes to be suppressed and a better front to back F B ratio compared to traditional Yagis With time it is possible to achieve an excellent balance between design F B gain and bandwidth Additionally the proximity of the loop and the antenna entry point make the LFA less susceptible to noise and static nearby In addition the low level of the LFA late...

Page 2: ...in 10 62 dBi F B 24 92 dB SWR 1 0 1 1 2 1 Impedance 50 Ohms Max Power 5 kW Boom Length 4 48m Wind Survival 200kmh 125mph Weight 6 9 Kg 14 0 21 0 MHz 1 1 3 1 5 2 0 3 0 5 0 3500 KHz 3800 KHz Ω 300 W Boom Size 30x30x2mm Element Diameter Center Element 13x1mm Tips 10x1mm ...

Page 3: ...s no a escala REF 0 9195m D1 0 8195m D2 0 767m D3 0 6845m 1 2m DE1 ALIMENTACION FEEDPOINT DE2 0 648m 1600mm Placa Mástil Mast Plate 0 280m 0 280m 0m 0 573m 0 525m 1 261m 1 785m 0 853m 1 378m 2 639m 4 424m ESPAÑOL ENGLISH ...

Page 4: ...pe para no dañar ninguna rosca del BOOM EA010039 EA010039 EA010039 DIN 933 M6X16 DIN 9021 M6 ESPAÑOL BOOM BOOM A A EA010039 EA010039 EA010039 DIN 933 M6X16 DIN 9021 M6 ENGLISH To mount the BOOM you have to match frontally boom parts with the same letter eg AA BB CC etc and once done the plates EA010039 go with fixing screws DIN 933 M6X16 and washer DIN 9021 M6 It is recommended to put all of the s...

Page 5: ... de 13mm Ø y con la ayuda de una cinta métrica marcar a la mitad 60cm y una vez centrado fijar con la otra parte del EAHYP013 con los tornillos DIN 912 M6X40 como aparece en el dibujo inferior Para colocar cada placa al boom se fija mediante los tornillos DIN 912 M6X20 y arandela DIN 9021 M6 Esta placa debe de quedar bien firme para la colocación del elemento El paso siguiente seria igual que los ...

Page 6: ...e the rivet has to be inserted to be screwed with the Allen key supplied See example below YES NO The fixing of the LOOP element each element is using a Hose Clamp 8 12mm P0100022 the 13 to 10mm diameter and 7 11mm P0100031 to the 10 to 6mm Measures page 2 are expressed in external lenght ie measuring from each end of the tube Once elements are assembled correctly proceed to put each item on the p...

Page 7: ...e hagan la mayor fuerza sobre el mástil mediante abarcones redondos de M8 Los abarcones redondos de M8 A 0163 van fijados mediante arandela DIN 9021 M8 y tuerca DIN 934 M8 proporcionadas en el mismo abarcón y fijada al mástil con la Mordaza 23035 50 Detallamos dibujos para una mayor ilustración Vista lateral desde el mástil Vista laterall desde el BOOM Front view from Mast Front view from BOOM 230...

Page 8: ...the mast by means of M8 round U bolts Round U bolts M8 A 0163 are secured by washer DIN 9021 M8 and nut DIN 934 M8 provided in the same U bolt and fixed to the mast with clamp 23035 50 Detailed drawings for further illustration MAST TO BOOM PLATE ASSEMBLY Front view from Mast Side view from Mast Front view from BOOM Side view from BOOM ENGLISH 23035 50 A 0163 P0500030 S934 96 S9021 96 EA013013 EA0...

Page 9: ...ue lo conseguido en el ajuste nos dé el mismo resultado estando a cualquier otra altura ya puesto en la torre mástil ESPAÑOL Alimentación mediante coaxial Después de varios ensayos vemos que el balun de aluminio hace peor trabajo que un choque de coaxial Por esto recomendamos hacer a escaso centímetros o metros de la alimentación un choque del coaxial de bajada de 5 vueltas de 8 centímetros de diá...

Page 10: ...r 2 meters above the ground while it is sufficient to have achieved in the setting give us the same results being any other height on the tower or mast ENGLISH Coax cable feeding After several trials we see that the balun aluminum makes it worse job than a coaxial choke For this we recommend 5 turns of 8 cm and thus the RF return will be minimal or absent In the drawing advise you to do the clash ...

Page 11: ......

Page 12: ...Plotter de Elevación ESPAÑOL ENGLISH ...

Page 13: ...Plotter de Azimut ESPAÑOL ENGLISH ...

Page 14: ...Gráfico de R O E ESPAÑOL ENGLISH ...

Page 15: ...adera Sin Fin Hose clamp Abrazadera Sin Fin Hose clamp 4 4 P0100022 P0100031 ESPAÑOL ENGLISH PART PIEZA Nº IMAGEN PART IMAGE DESCRIPCION DESCRIPTION MEDIDAS SIZES CANTIDAD QUANTITY EA013013 Placa Mástil Boom Mast and Boom plate 200 x 100 x 6mm Abarcon U Bolt Mordaza Tube Clamp Abarcon Cuadrado Square U bolt DIN 9021 DIN 934 50mm 50mm M8 30mm M6 M6 2 2 4 4 1 2 23035 50 P0500030 A 0163 S9021 96 S934...

Page 16: ...n DIN 912 Screw Tornillo Allen DIN 7984 Allen DIN 7984 Screw M6x40mm 24 S912 9640 Tuerca Autoblocante DIN 985 DIN 985 NUT M6 24 S985 906 ESPAÑOL ENGLISH EAHYP013 M4x10mm 10 S7984 9410 Remache Roscado Rivnut M4 10 RIVSS_M4 PART PIEZA Nº IMAGEN PART IMAGE DESCRIPCION DESCRIPTION MEDIDAS SIZES CANTIDAD QUANTITY DIN 9021 M6 16 S9021 96 Tornillo Allen DIN 933 Allen DIN 933 Screw Piezas unión de Boom Bo...

Page 17: ...S Pieza lateral Loop Loop Driven 748mm x 10mm Ø 748mm x 10mm Ø 1019 5mm x 10mm Ø 1200mm x 13mm Ø 1200mm x 13mm Ø 1200mm x 13mm Ø 919 5mm x 10mm Ø 867mm x 10mm Ø 784 5mm x 10mm Ø 2 2 2 4 1 1 2 2 2 DE1 DE2 REF D1 D2 D3 DE1 EXCITADO DE1 DRIVEN DE2 EXCITADO DE2 DRIVEN REFLECTOR Parte Central de Elementos Middle part of Elements Parte Central de DE1 Middle part of DE1 Parte Central de DE1 Middle part o...

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