Registe-se, faça a sua apresentação e terá acesso total ao TX&RX Fórum. ___________________________ Apresente-se dizendo quem é, escreva algo sobre si. Exemplo: Nome, indicativo, nome de estação, localidade, o que mais gosta de fazer no mundo das radio-comunicações e outras coisas que ache importante para a sua apresentação. Se é novato não tenha vergonha de o dizer, pois cá estamos para o ajudar.
___________________________ 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!!
___________________________ 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!!
Fold Beam is a 2-element (20/17/15/12 / 10m, 6m optionaL)
TX RX Fórum :: TX&RX Fórum :: HF :: Antenas - HF
Página 1 de 1
Fold Beam is a 2-element (20/17/15/12 / 10m, 6m optionaL)
[Tens de ter uma conta e sessão iniciada para poderes visualizar esta imagem]
The fold Beam is a 2-element directional antenna for five amateur radio bands (20/17/15/12 / 10m, 6m optional). The antenna consists of wire elements which are mounted concentrically on a supporting structure. From the central support tube spreaders are held with the support cables in position, the support tube is simultaneously coaxial feeder for the spotlight. The reflectors and lamps are mounted on fiberglass spreaders.
[Tens de ter uma conta e sessão iniciada para poderes visualizar esta imagem]
Specifications
Impedance 50 Ohm
Connection UHF female (SO-239), on request N female
Profit max. 5-6 dBi in free space (equivalent to approximately 3-4 dB over a dipole)
V / R ratio > 20 dB (band dependent)
SWR <2 over the entire band (20/17/15/12/6 m), 10m-band: from 28 to 29.3 MHz
Load-bearing capacity 1500 Watt
Elements tensile tinned Cu wire 1.0 mm (building 32 x 0.2) with PVC jacket black
Spreader Fiberglass high elastic and UV-fixed 10 mm diameter
Tensioning cables 1.5 mm Dyneema Rope with Polyester cover, UV resistant
Support tube Aluminum weatherproof alloy 30 x 2 mm
Fastening material continuous stainless steel A2
otherwise. plastic parts Injection molding of PBT (polybutylene terephthalate) black, impact modified, UV resistant
Turning radius approximately 3.20 m
Mass 6 kg
effective wind area approximately 0.25 m²
Folded dimensions 1.15 mx 15 cm x 15 cm
Attachment of fiberglass pipe fitting 130 mm long, 25.4 mm diameter, ie fits in telescopic mast with 30 x 2 aluminum tube
Low center of gravity, symmetrical design, low weight and small wind load allow for rotating the antenna using a small and inexpensive TV rotor.
Readings
SWR readings (measured with a calibrated telephoto Post Inc. LP-100 SWR / Wattmeter, TRX Icom IC-7000 power cable 20 feetRG-58U). Due to the cable attenuation are the values directly at the feed point of the antenna slightly higher.
[Tens de ter uma conta e sessão iniciada para poderes visualizar esta imagem]
Manual
Fonte
The fold Beam is a 2-element directional antenna for five amateur radio bands (20/17/15/12 / 10m, 6m optional). The antenna consists of wire elements which are mounted concentrically on a supporting structure. From the central support tube spreaders are held with the support cables in position, the support tube is simultaneously coaxial feeder for the spotlight. The reflectors and lamps are mounted on fiberglass spreaders.
[Tens de ter uma conta e sessão iniciada para poderes visualizar esta imagem]
Specifications
Impedance 50 Ohm
Connection UHF female (SO-239), on request N female
Profit max. 5-6 dBi in free space (equivalent to approximately 3-4 dB over a dipole)
V / R ratio > 20 dB (band dependent)
SWR <2 over the entire band (20/17/15/12/6 m), 10m-band: from 28 to 29.3 MHz
Load-bearing capacity 1500 Watt
Elements tensile tinned Cu wire 1.0 mm (building 32 x 0.2) with PVC jacket black
Spreader Fiberglass high elastic and UV-fixed 10 mm diameter
Tensioning cables 1.5 mm Dyneema Rope with Polyester cover, UV resistant
Support tube Aluminum weatherproof alloy 30 x 2 mm
Fastening material continuous stainless steel A2
otherwise. plastic parts Injection molding of PBT (polybutylene terephthalate) black, impact modified, UV resistant
Turning radius approximately 3.20 m
Mass 6 kg
effective wind area approximately 0.25 m²
Folded dimensions 1.15 mx 15 cm x 15 cm
Attachment of fiberglass pipe fitting 130 mm long, 25.4 mm diameter, ie fits in telescopic mast with 30 x 2 aluminum tube
Low center of gravity, symmetrical design, low weight and small wind load allow for rotating the antenna using a small and inexpensive TV rotor.
Readings
SWR readings (measured with a calibrated telephoto Post Inc. LP-100 SWR / Wattmeter, TRX Icom IC-7000 power cable 20 feetRG-58U). Due to the cable attenuation are the values directly at the feed point of the antenna slightly higher.
[Tens de ter uma conta e sessão iniciada para poderes visualizar esta imagem]
Manual
Fonte
ALF007- Administrador Fundador
Tópicos semelhantes
» Light Beam Plus Antenna – LBP-20M
» Two element QUAD antenna Model RQ-26H
» Antena Spider Beam... Skypper - 11 metros DX
» FORCE 12 17M/12M DUALBAND YAGI BEAM ANTENNA
» G3TXQ 6 Band Hexbeam 40m single element add on kit
» Two element QUAD antenna Model RQ-26H
» Antena Spider Beam... Skypper - 11 metros DX
» FORCE 12 17M/12M DUALBAND YAGI BEAM ANTENNA
» G3TXQ 6 Band Hexbeam 40m single element add on kit
TX RX Fórum :: TX&RX Fórum :: HF :: Antenas - HF
Página 1 de 1
Permissões neste sub-fórum
Não podes responder a tópicos