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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.
Peso: 6,5 Kg.
Max. Potencia: 10,0 kW
Yagi Antenna
Yagi Antenna
144LFA7
144LFA7
2,95m
17740.07
Rev. V1.6- 23/11/2020
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Resumen de contenidos para EAntenna 144LFA7
- Página 1 144LFA7 144LFA7 17740.07 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.
- Página 2 SPECIFICATIONS EAntenna 144LFA7 Elements: Frequency Range: 144,0 ~ 146,0 MHz. 14,0..21,0 MHz. Gain: 12,82 dBi F/B: 22,45 dB 3500 KHz. 3800 KHz. SWR: 1,0:1~1,2:1 Ω Impedance 50 Ohms Max. Power: 10 kW. 300 W. Boom Length: 2,95 / 9,67' Turning Radius: 1,57m.
- Página 3 Not to Scale ENGLISH ESPAÑOL Medidas no a escala 1,025m 88 mm +/- 0,869m 173 mm 133 mm 0,957m 1370mm 411mm 0,926m Placa Mástil Mast Plate 677 mm 1680mm 0,904m 720 mm 0,889m 692 mm 1576mm 0,867m...
- Página 4 ESPAÑOL Para montar el BOOM, tiene que hacer coincidir frontalmente las partes de boom que tienen la misma letra ( p.ej: A-A, B-B, C-C etc), y una vez hecho, las placas (EA010039) se van fijando con los tornillos DIN 933 M6X16 y arandela DIN 9021 M6. Se recomienda poner todas los tornillos y arandelas antes de fijarla a tope para no dañar ninguna rosca del BOOM.
- Página 5 PLACAS SUJECIÓN MÁSTIL ESPAÑOL La placa de sujeción BOOM/MÁSTIL (EA013013) de 200X100X6mm consta de 8 agujeros; 4 gruesos para los abarcones redondos y 8 para los abarcones cuadrados que sujetan el BOOM. Los 4 agujeros de mayor grosor tienen la función de que 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).
- Página 6 MAST TO BOOM PLATE ASSEMBLY ENGLISH The clamping plate BOOM / MAST (EA013013) 200X100X6mm consists of 8 holes; 4 thick for round U-bolts and 8 square U-bolts for securing the BOOM. The 4 holes are thicker function that make the greatest force on 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 mounting block (23035.50) Detailed drawings for further illustration: (EA013013)
- Página 7 Cara C y D; en estos agujeros van introducidos los elementos. El montaje de EAntenna es tan facil como introducir cada elemento en su correspondiente agujero en el boom (Cara C y D), y con el el tornillo DIN 7991 M4x30 roscar sobre el mismo elemento (CARA A). Para reforzar el elemento al boom, se añade una tuerca M4 DIN 934 que con una llave de vaso o tubo del número 7 se aprieta facilmente (CARA B)
- Página 8 ENGLISH Adjusting SWR: Once positioned the antenna with your measurements, you may need some fine-tuning to get the SWR desired. Shifting the curve piece inward or outward several millimeters, is the way to go. Looking to the center frequency is 144,300 MHz in the lower SWR.
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Página 10: Plotter De Elevación
Plotter de Elevación... - Página 11 Plotter de Azimut...
- Página 12 Gráfico de R.O.E.
- Página 13 ENGLISH ENGLISH ESPAÑOL PACKING LIST BOLSA 1 - BAG #1 LISTA DE PIEZAS PART # DESCRIPCION MEDIDAS CANTIDAD IMAGEN PIEZA Nº DESCRIPTION SIZES QUANTITY PART IMAGE Placa Mástil/Boom 200 x 100 x 6mm EA013013 Mast and Boom plate Abarcon A-0163 50mm, M8 U-Bolt.
- Página 14 BOLSA 3 - BAG #3 PART # DESCRIPCION MEDIDAS CANTIDAD IMAGEN PIEZA Nº DESCRIPTION SIZES QUANTITY PART IMAGE Piezas unión de Boom EA010039 Boom joint part 200x35mm Tornillo Allen DIN 933 M6x16mm S933-9616 Allen DIN 933 Screw DIN 9021 S9021-96...
- Página 15 CANTIDAD IMAGEN PIEZA Nº DESCRIPTION SIZES QUANTITY PART IMAGE BOOM A 1370mm x 30mm 144LFA7 BOOM B 1576mm x 30mm 144LFA7 Pieza lateral Loop 173mm x 100mm x 10mm Ø EALOOP17310 Loop Driven 776mm x 13mm Ø 776mm x 13mm Ø...