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BIG SIGNAL DL-40
Full-Wave Monoband Delta Loop for 40 Meters
Full-Wave Monoband Delta Loop for 40 Meters
The BIG SIGNAL DL-40 is a full-wave monoband Delta Loop specifically designed for the 40-meter band, created for amateur radio operators looking for an efficient, low-noise, and easy-to-install alternative to conventional wire antennas.
Its full-wave closed-loop element provides efficient performance on both transmit and receive, while offering an especially attractive solution for stations where electrical and urban noise can make weak-signal reception more challenging.
Band: 40 Meters
Configuration: Full-Wave Delta Loop
Polarization: Horizontal
Minimum Installation Height: approximately 8 m / 26.2 ft
Setup: Quick and easy
Recommended Use: DX / Base Station / Portable / POTA / SOTA
Configuration: Full-Wave Delta Loop
Polarization: Horizontal
Minimum Installation Height: approximately 8 m / 26.2 ft
Setup: Quick and easy
Recommended Use: DX / Base Station / Portable / POTA / SOTA
Why Choose the BIG SIGNAL DL-40?
• Full-Wave Loop for 40 Meters
Unlike a conventional half-wave dipole, the DL-40 uses a full-wave closed-loop element, providing an efficient configuration specifically designed for operation on the 40-meter band.
Unlike a conventional half-wave dipole, the DL-40 uses a full-wave closed-loop element, providing an efficient configuration specifically designed for operation on the 40-meter band.
• Clean Reception and Excellent Signal-to-Noise Ratio
The closed-loop geometry can help reduce the pickup of certain types of electrical noise commonly found in urban environments, making weak signals easier to copy.
The closed-loop geometry can help reduce the pickup of certain types of electrical noise commonly found in urban environments, making weak signals easier to copy.
• Excellent Choice for DX
Its full-wave configuration and horizontal polarization provide characteristics especially well suited for DX and medium- to long-distance communications.
Its full-wave configuration and horizontal polarization provide characteristics especially well suited for DX and medium- to long-distance communications.
• Installation from Approximately 8 m / 26.2 ft
The DL-40 does not require a large tower to begin delivering effective performance. It can be installed using a mast approximately 8 m / 26.2 ft high, making it an attractive option for stations with limited support height.
The DL-40 does not require a large tower to begin delivering effective performance. It can be installed using a mast approximately 8 m / 26.2 ft high, making it an attractive option for stations with limited support height.
• An Alternative to Traditional Wire Antennas
Its Delta Loop configuration offers a different approach compared with dipoles, double bazookas, and other half-wave designs, especially for operators looking for improved reception and the advantages of a full-wave element.
Its Delta Loop configuration offers a different approach compared with dipoles, double bazookas, and other half-wave designs, especially for operators looking for improved reception and the advantages of a full-wave element.
• Ideal for Portable Operation
Its simple deployment makes it an excellent choice for portable operation, POTA, SOTA, Field Day, and DXpeditions, where fast setup and reliable performance are especially important.
Its simple deployment makes it an excellent choice for portable operation, POTA, SOTA, Field Day, and DXpeditions, where fast setup and reliable performance are especially important.
• Built for Outdoor Use
Designed with durable materials to provide a reliable, long-lasting installation for both permanent stations and temporary field operations.
Designed with durable materials to provide a reliable, long-lasting installation for both permanent stations and temporary field operations.
A Delta Loop Designed to Get More from 40 Meters
On a band where signal-to-noise ratio can make all the difference, the BIG SIGNAL DL-40 combines a full-wave closed-loop element with straightforward installation to provide an especially attractive solution for both DX and everyday operation.
Full Wave. Less Noise. More 40 Meters.
BIG SIGNAL DL-40 – a full-wave Delta Loop designed for operators who want to get more from the 40-meter band with an efficient, simple, and DX-ready antenna.
Technical Specifications
Band: 7.0 – 7.2 MHz / 40-Meter Band
Gain: 3.37 dBi (Free Space) | 5.9 dBi @ 12 m / 39.4 ft
Polarization: Horizontal
SWR: 1.1:1 – 1.5:1
Impedance: 50 Ω
Maximum Power: 1,000 W PEP | optional version up to 2.5 kW
Minimum Required Mast Height: 8 m / 26.2 ft
Total Antenna Height: 6 m / 19.7 ft
Total Width: 18.5 m / 60.7 ft
Weight: 2 kg / 4.41 lb
Wind Survival: > 200 km/h / 124 mph
Gain: 3.37 dBi (Free Space) | 5.9 dBi @ 12 m / 39.4 ft
Polarization: Horizontal
SWR: 1.1:1 – 1.5:1
Impedance: 50 Ω
Maximum Power: 1,000 W PEP | optional version up to 2.5 kW
Minimum Required Mast Height: 8 m / 26.2 ft
Total Antenna Height: 6 m / 19.7 ft
Total Width: 18.5 m / 60.7 ft
Weight: 2 kg / 4.41 lb
Wind Survival: > 200 km/h / 124 mph
Note: The DL-40 is available in a standard 1,000 W PEP configuration and an optional version designed to handle up to 2.5 kW. The feed system and wire used vary depending on the selected version.
Configuration & Installation
• Optimized Dimensions for 40 Meters
The antenna measures approximately 18.5 m / 60.7 ft wide and 6 m / 19.7 ft high, forming a full-wave closed loop specifically designed for the 7 MHz band.
The antenna measures approximately 18.5 m / 60.7 ft wide and 6 m / 19.7 ft high, forming a full-wave closed loop specifically designed for the 7 MHz band.
• Installation from an 8 m / 26.2 ft Mast
Its geometry allows installation using a mast with a minimum height of approximately 8 m / 26.2 ft, providing an attractive solution when large towers or support structures are not available.
Its geometry allows installation using a mast with a minimum height of approximately 8 m / 26.2 ft, providing an attractive solution when large towers or support structures are not available.
• Three-Point Support System
The antenna incorporates 3 insulators that allow the Delta Loop geometry to be formed and maintained by tensioning the assembly, considerably simplifying installation.
The antenna incorporates 3 insulators that allow the Delta Loop geometry to be formed and maintained by tensioning the assembly, considerably simplifying installation.
Construction & Materials
• Insulators
Equipped with 3 insulators that allow the antenna to take its proper shape simply by tensioning the different support points.
Equipped with 3 insulators that allow the antenna to take its proper shape simply by tensioning the different support points.
• Feedpoint Enclosure
Made from aluminum, providing a lightweight and durable structure for the feed system.
Made from aluminum, providing a lightweight and durable structure for the feed system.
• Wire – 1,000 W Version
14 AWG (2.08 mm²) copper conductor with a PVC jacket, sized for the standard configuration rated up to 1,000 W PEP.
14 AWG (2.08 mm²) copper conductor with a PVC jacket, sized for the standard configuration rated up to 1,000 W PEP.
• Wire – High-Power Version
Special copper wire with a polyethylene (PE) jacket, designed to provide excellent weather protection and high mechanical durability for long-term outdoor use.
Special copper wire with a polyethylene (PE) jacket, designed to provide excellent weather protection and high mechanical durability for long-term outdoor use.
• RF Feed
The 1,000 W version uses a UHF female (SO-239) connection. The optional 2.5 kW configuration incorporates a current balun.
The 1,000 W version uses a UHF female (SO-239) connection. The optional 2.5 kW configuration incorporates a current balun.
Reviews
Write your review
EA2LMI's Expedition with the DL-40
Assembly Delta Loop BIG SIGNAL DL-40
Antenna BIG SIGNAL DL-40 by YU2SRB
The purchase of the products is always made on request. We manufacture all products, so manufacturing times can be added. That is why the final price of the purchase, as the final price of the shipping costs will be confirmed in an email sent afterwards.
The form of payment will be made once the email is received, so at all times you can cancel the order informing us of the process.
I use this antenna as first antenna from Big signal ,really it?s more than what I guess . Not last time to pay antenna from this company . Best regards
Llevaba más de un año esperando el momento de poder montar esta antena en nuestra segunda residencia (Asturias). Una vez más (no es la primera ni la última antena que compro en BigSignal) el montaje facilísimo. En cuestión de media hora estaba instalada. Nos hemos llevado una grata sorpresa al descubrir que la antena está perfectamente ajustada tanto para la banda de 40 metros como para la de 15 metros. En menos de una hora estaba transmitiendo con muy buen resultado. Ha sido un acierto volver a confiar en BigSignal.
Alberto
EA2EXS
I have this antenna a few weks in use and and I happy with the build and the results of this antenna!! If I compare it with my endfed the difference is amazing!!Mostly the signals are 3S higher and with a low noise.I even can work the weak stations!! I really a happy users of this great antenna!!
Hi Big Signal,
Today i build up the DL-40 in my Garden ? nice & easy, and wow ? what a strong signal ? in EU QSO @40m? most of stations with 20 dB over 9.
Much better like my T2FD under roof. Very Simple & effective to tune without ATU.
Thank you for your good Job and best 73?s de Daniel, DJ8PA
I installed DL-40 on Spiderbeam pole 8m above ground. Instructions are clear and installation was easy and logical.
I get SWR 1:1.2.
Antenna receive excellent, signal is clear and nice and I get around 2 S units lower noise than my Fritzel FD3.
This is mono band antenna so the results are great as expected.
This is my second antenna from BIG SIGNAL company. Very satisfied.
Best regards and 73s
Marko from Serbia - YU2SRB
Por fin puedo disfrutar, y de que manera, los 40 metros. Después de un QSO con una estación de Andorra, que tenía una delta loop de 40 me decidí a buscar algo similar y encontré esta antena. Llegó muy rápido, a través de uno de vuestros distribuidores en Madrid, 2 días, y al día siguiente montada. Fin del ruido y contactos fáciles, cuando antes me desgañitaba para finalizar un contacto en portable, ahora suelo pasar por encima del pile-up y solo con 100W o menos. Aunque tengo el pico a 6,5 metros de altura y un poco inclinada, el lado inferior está a más de 2 metros, para evitar contactos involuntarios el rendimiento es superior. Al día siguiente de su montaje intenté trabajar ZL en 40 metros y me escuchó aunque no pude finalizar el contacto más bien por falta de interés pos su parte (weak signal) sí que se evidenció, que llegaba. Los reportes de señal excelentes en EA, Europa y África, aunque mi ubicación portable es un handicap, valle con montañas de hasta 2.000 metros, pero es lo que hay.
Recomiendo su compra al 100%.
En una palabra: ESTUPENDA.Magnifica antena.No se puede describir el resultado si no la pruebas.
La instalo en el jardin de casa,con un tripode y un mastil telescopico de aluminio a unos 9 mts.de altura.
El resultado mucho mayor de lo que esperaba.Hacia mucho tiempo que no me lo pasaba tan bien en
40 mts.
Felicidades a todo el equipo de Big Signal por estos resultados.
Un Saludo.
Buena antena la Delta Loop BIG SIGNAL DL-40. Gracias Juan Pedro, felicitaciones.
Hola, hace un mes que tengo instalada la antena DL-40 de BIG SIGNAL. Menuda diferencia con la antena Windom corto que antes tenia instalada, el QRM en la banda era de S9+++ ahora con la DL 40 el QRM me ha bajado a S4, S5. ¡Una maravilla! ya tengo una buena oreja en 40 metros! Ahhh también la utilizo en la banda de 80 metros acoplándola y sale de maravilla. Es una antena que se la recomiendo a todo el mundo, saludos!
Hola, la BIG SIGNAL DL-40 es una antena estupenda en recepción y transmisión. El ruido QRM me ha bajado a señal 4-5 y con el otro dipolo Doble Bazooka que tengo instalado el QRM es de 8-9, como nota le doy un sobresaliente. Muchas gracias por recomendarme esta antena, ahora puedo volver a disfrutar de los 40 metros.
Saludos.
Para mi es un antenon muy buena antena rapido montaje .La montamos en una activacion de un vertice y la verdad los reportes eran muy buenos . Yo personamente la recomiendo quedaras muy contento calidad precio bien .Yo la monto en un mastil de aluminio telescopico de 9 metros en portable y esta antena es una maravilla .
No sabría por dónde empezar sobre esta gran antena ya que desde que salieron los primeros prototipos la pude utilizar en mis activaciones. Ahora el modelo ha mejorado en calidades de material y yo creo que más no sé puede pedir calidad precio muy bien.
En mí humilde opinión ya que mis perspectivas fueron superadas con creces, la misma marca lo dice? BIG SIGNAL. Y a los comentarios de un compañero muy activo me dijo: Luis Mi eres la estación que más fuerte sales del norte en tus actividades. Una antena que por si sola con las señales de RX y TX que da te sorprenderá junto al bajo ruido (QRM).
El montaje es sencillo, montar y listo, toda la banda completa 1,1:1 de ROE. Es muy buena, hasta tal punto que en mi QTH también la montó para concursos o expediciones difíciles. Yo siempre digo que para opinar hay que tenerlo y aprender a manejar lo que uno compra. Tan contento estoy que la tengo para varías bandas 20/10 m etc.
Gracias por tus productos BIG SIGNAL, seguid así, un cliente satisfecho.
Se hace tarde después de la instalación y se deja todo provisional para hacer algunas pruebas en el aire y para terminar otro día los detalles si sale todo bien. Probamos en 7.138 MHz, fuerte Pile-Up de Europa con una estación de YC0, al segundo intento 5/9, a continuación otra de R9, también fuerte Pile-Up y lo mismo, dos intentos y 5/9. Bien, parece todo está OK
Hola, hoy aprovechando que hemos tenido un día maravilloso he probado la antena Delta Loop BIG SIGNAL DL-40 y comparándola con un dipolo Doble Bazooka y siempre ha sido superior la Delta Loop a la Bazooka, felicitaciones por lo bien que va.