MFJ SWR Analyser

MFJ-226 Portable Antenna Analyzer

MFJ-226 Analyser

Portable Antenna analyser with graphical display, up to 230 MHz.

The MFJ-226 is a battery operated antenna analyser for the frequency range from 1 to 230 MHz. Thanks to it#s design as a vectorial network analyser (VNA) the MFJ-226 is capable to measure complex values and present the results graphically as a Smith chart. Possible measurements are SWR, complex impedance (resistance and signed reactance), phase angle, return loss and much more.

Another important feature of the MFJ-226 analyser is the possibility to calibrate the system. With a measurement of open, short and load (OSL) a better accuracy is achieved. Further existing cable losses and phase shifts can be eliminated from a measurement. Calibration data can be stored for later recall for four different setups.

For measurements the MFJ-226 offers 32 memories. This is very useful when doing measurements on the road, later you can transfer the measuremnt data to a computer. Measurements are done either in the "single frequency mode" on one fixed frequency, or in the "sweep frequency mode" while sweeping between two corner frequencies. This latter mode allows for the measurement and display of SWR graphs over an entire frequency band. Measurements can also be done b computer cntrol over the USB interface.

The MFJ-226 analyser offers a graphical LC display and an easy to operate keyboard, both backlit. A USB port is used to transfer measurement data to the computer as well as for firmware upgrades. Power supply is done by two AA cells. The solid case is suitable for field-use. Size of the MFJ-226 is 165 x 80 x 32mm, the weight incl. batteries is c. 300g.

Datos Technicos MFJ-226
Gama de Frecuencia 1 - 230 MHz, continous
Frequency Resolution 1 Hz
Antenna Connector N type, female
Output Level +10dBm (typ.)
Harmonics -15dBc (typ.)
LC Display Monochrome, 128x64 px, backlit
Peso c. 300 gr (incl. batteries)
Power Supply 2 AA cells, Alkaline or NiMH
Computer Interface USB Mini-B socket
Articulo No.
MFJ-226 Portable Analyser up to 230MHz 435.00 € Comprar
Gastos de envió

New! MFJ-225 Graphical Antenna Analyser

MFJ-225

The MFJ-225 has got all functions of a standard analyser plus a variety of new functions, such as built-in LC display, 2 port VNA and USB port. The MFJ-225 does not require calibration (self-calibrating)! Very easy to use. All functions are described in the included English manual.

Two antenna analysers in one!
The MFJ-225 is a complete, self-contained analyser that is battery-powered and thus can be installed directly at the antenna. Connect the device to a PC and use the IG-mini VNA freeware to create a fully-fledged 2-channel VNA and do extensive data analysis. You can also print graphical curves in addition to your numerical results.

View more!
Thanks to the built-in, illuminated 3″ graphic display, you will always have all the values in view. In addition to the presentation of discrete values, the SWR can also be plotted graphically as a curve. Other important displayed values are Impedance, V/R ratio, phase angle. Set center-frequencies with a knob on the side of the MFJ-225 and read the curve in full screen mode on the display.

Frequency range from 1.5 to 179.9 Mhz
The MFJ-225 analyser covers the entire frequency range from 1.5MHz to 179.9 MHz continuously with the help of an integrated DDS-VFO with 1 khz resolution, so all mechanical elements like switches or controller are no longer necessary. The adjustment is done by an optical encoder.

Built-in signal generator!
The MFJ-225 uses a built-in signal generator with -5dBm power output to test several components such as mixer, amplifier, filter etc. The signal has a good suppression of harmonics of -50dBc and provides for excellent test results.

Versatile power supply!
For operation of the MFJ-225 you can use 4 AAA (rechargeable or Alkaline) batteries. These are installed inside the device. With a 12V socket attached on the side, you are even able to recharge the batteries. A LED light shows the charging status. A USB cable does also function as a power supply for the MFJ-225 when connected to a PC.

What is the MFJ-225 able to measure?

  • SWR (1:1 to 9.9:1)
  • Complex impedance (R + jX)
  • Return loss (RL, 0 - 30dB)
  • Phase (0 - 180°)
  • Capacity (0 - 9999pF)
  • Inductance (0.1 - 80µH)
  • Cable length (0.5 - 45m)
  • Cable loss (0 - 30dB)

No power supply included!

Articulo No.
MFJ-225 Graphical antenna analyser 439.00 € Comprar Nuevo
Gastos de envió

MFJ-259C / MFJ-269C

MFJ-269C MFJ-269C

With the MFJ-259C get your antennas properly tuned para maximum performance. Connect a the feed line, set the bandswitch and tune the dial - just like a transceiver. Read the antenna SWR and complex impedance. By tuning through you see instantly the antenna resonance frequency. Frecuencia: MFJ-259C: 1.8 - 170 MHz, MFJ-269C: additionally 415-470 MHz. External 12V supply or internal batteries (10x AA size).

    MFJ-259C: 5 measurement units all in one:
  • RF signal generator 1.8 - 170MHz
  • Frequency counter with 0.1Hz accuracy
  • SWR Analyzer
  • Measure complex antenna impedance
  • Dip meter (with option MFJ-66)

Delivery does not include a power supply!

Articulo No.
MFJ-259C up a 170 MHz 339.00 € Comprar
MFJ-269C incl. 70cm-Bandas 459.00 € Comprar
Gastos de envió

Acesorios MFJ-269C

MFJ-BAG Carrying Bag

Accessory Kit für MFJ-259/269C

  • Volumen de entrega
  • Power Supply/Charger
  • 10pc AA (Mignon)Batteries
  • Protective/Carrying case

The allround well padded nylon bag has a removable shoulder strap, still have room for other small items and an additional a flat front compartment for paperwork or cable. Dimensions 27x15x11cm. The batteries are maxE 'Batteries', with almost no self-discharge and then after loading they are more than a year ready for use.
The power supply can be used for loading and also to operate the SWR Analyzer and has 15V output voltage. The standard 12V power supply units are not suitable! To charge the batteries in the SWR Analyzer the batteries can remain inside. Do not forget to change the internal switch of 'dry batteries' to 'battery', see the instructions of the devices.

Articulo No.
MFJ-259-BAG Carrying Bag with Power Supply and Batteries 69.00 € Comprar
Gastos de envió

Other Accessoires for MFJ-259 and MFJ-269 analysers

Articulo No.
MFJ-29C Bolsa para MFJ-259B 25.00 € Comprar
MFJ-29D Bolsa para MFJ-259C 33.40 € Comprar
MFJ-39C Bolsa para MFJ-269 25.00 € Comprar
MFJ-39D Bolsa para MFJ-269C 33.40 € Comprar
MFJ-66 Dip meter inductivities for MFJ-259 and MFJ-269 39.80 € Comprar
Gastos de envió
MFJ-29C MFJ-29C
MFJ-66 MFJ-66

Analizador de antena MFJ-266C

MFJ-266C MFJ-266C

Instrumento compacto de medida de antenas para HF y onda corta hasta 70cm UHF

El analizador MFJ-266C SWR cubre las bandas desde onda corta, pasando por los 4m y la banda comercial de FM hasta los 2m VHF y 70cm UHF. La pantalla LCD retroiluminada muestra frecuencia, ROE e impedancia (partes real e imaginaria, magnitud absoluta) al mismo tiempo. Además, este aparato puede medir capacidades, inductancias, magnitud de campo o frecuencia, funcionando asimismo como generador de señal. Esto te permite realizar fácilmente todas las medidas de antena así como las medidas más frecuentes en HF sobre cables, stubs, filtros, baluns etc. Además, el MFJ-266 es fácil de operar.

Rangos de frecuencia
El MFJ-266C cubre los siguientes rangos de frecuencia:

  • A: 1.5 – 2.7 MHz
  • B: 2.5 – 4.8 MHz
  • C: 4.6 – 9.6 MHz
  • D: 8.5 – 18.7 MHz
  • E: 17.3 – 39 MHz
  • F: 33.7 – 65 MHz
  • V: 85 – 230 MHz
  • U: 300 – 490 MHz

El ajuste de frecuencia se hace de manera muy precisa mediante sintonía por varicap utilizando un nonio 10x. La sintonía de frecuencia se puede bloquear para evitar una cambio accidental.

Medida de la ROE
La medida de la ROE cubre un rango desde 1:1 hasta 9.9:1, impedancias desde 10 hasta 500 Ω, mostrándose las partes real e imaginaria (¡no en UHF!).

Medida de la capacidad y la inductancia
Es fácil medir con el MFJ-266 componentes desconocidos como capacitores e inductancias, mostrándose el resultado en pF o µH. La medida se hace en frecuencias de HF, no en bajas frecuencias de AF como algunos medidores LC baratos.

Medidas de frecuencia e intensidad de campo
Cuando se utiliza el MFJ-266 como frecuencímetro, este aparato cubre frecuencias hasta los 500MHz, la resolución se puede seleccionar entre 1 kHz y 100Hz. En este modo también se muestra la intensidad de campo relativa, permitiendo medidas comparativas de antenas, osciladores, transmisores, etc.

Generador de señal
El MFJ-266 se puede utilizar como un generador de señal. Esto resulta de utilidad para hacer medidas en filtros, mezcladores o etapas de salida de baja potencia. El nivel de salida es de aproximadamente 2Vpp.

Tamaño, Peso, Alimentación
El tamaño del analizador de ROE es 95 x 79 x 165 mm (AnchoxProfundidadxAlto), el peso son aproximadamente 800g. La alimentación se hace por medio de 4 pilas internas AA o con 12 V= desde el exterior. Consume 30mA en modo frecuencímetro, ó 140mA en modo analizador. El conector de antena es N hembra, se incluye un adaptador a PL. Las bobinas del Grip-Dip MFJ-66 (ver más arriba) también se pueden usar con el MFJ-266.

Articulo No.
MFJ-266C Analizador de antena 399.00 € Comprar
Gastos de envió

MFJ-207 SWR Analyser

Bild MFJ-207

El MFJ-207 10-160 Cubre las siguientes bandas:

  • BAND A: 1.75 - 3.00 MHz
  • BAND B: 3.00 - 5.00 MHz
  • BAND C: 6.50 - 11.70 MHz
  • BAND D: 11.65 - 20.00 MHz
  • BAND E: 18.00 - 30.00 MHz

Se le puede incorporar un frecuencimetro externo.El MFJ-207 usa una bateria de 9V. Mide 19H x 6.5 W x 5.7D cm.

Articulo No.
MFJ-207 126.50 € Comprar
Gastos de envió