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Reduced Price New HF/VHF/220 MHz/UHF SWR Analyzer, 1.5-185/220/300-490 MHz Expand

MFJ HF/VHF/220 MHz/UHF SWR Analyzer, 1.5-185/220/300-490 MHz

MFJ Enterprises, Inc.

MFJ-266C by MFJ Enterprises, Inc.


MFJ-266C is an easy-to-use digital analyzer for all the RF-diagnostic functions you need!

More details


  • Covers HF, VHF, plus UHF amateur and commercial frequencies with digital precision.
  • Displays SWR, Complex Impedance and Impedance magnitude simultaneously -- all on the same easy-to-read LCD screen.
  • Measures Capacitance, Inductance, Field Strength, Frequency and generate test signals.
  • Allows you to fine tune stubs, analyze coax, test baluns and RF transformers.
  • Lets you perform many other important RF-related tasks around the shack or on the road!

MFJ-266C offers simplicity and convenience. It's easy to use and it fits comfortably in one hand for on-the-fly measurements on the bench or in the field. Here's the details:

  • Frequency Coverage: The MFJ-266C covers all bases -- 160 through 6 Meters, the FM broadcast band, Airband, 2 Meters, 220 MHz, 70 cm, plus VHF/UHF commercial 2-way frequencies:
    • Band A: 1.5 to 2.7 MHz
    • Band B: 2.5 to 4.8 MHz
    • Band C: 4.6 to 9.6 MHz
    • Band D: 8.5 to 18.7 MHz
    • Band E: 17.3 to 39 MHz
    • Band F: 33.7 to 65 MHz (gap*)
    • Band V: 105 to 230 MHz 220 MHz!
    • Band U: 300-490 MHz
  • The velvet-smooth 10:1 vernier drive and solid state varicap makes fine tuning a breeze.
  • Built-in dial lock prevents accidental detuning making measurements.
  • Switched backlighting LCD screen is easy-to-read in any light.
  • SWR, Impedance Magnitude, and Complex Impedance: In SWR Mode, MFJ-266C reads SWR 1:1 to 9.9:1, Impedance Magnitude 10-500 Ohms and Complex Impedance (resistance and reactance). Best of all, it displays all three parameters simultaneously and operating frequency with one quick glance. No other low cost handheld analyzer offers this! (Note: Z-mag and R+jX not displayed on UHF).
  • Capacitance and Inductance: Find values for unknown capacitance in pF or unknown inductance in uH quickly. Measurements are made at RF frequencies rather than at the low audio frequencies used by many handheld L/C meters.
  • Frequency Measurement, Field Strength Readings: In Frequency-Counter Mode, MFJ-266C becomes an accurate 500-MHz counter with a choice of 1-kHz or 100-Hz resolution. The counter mode also features a high-resolution digital field-strength meter for measuring the relative intensity of incoming signals. Together, these functions are extremely useful for checking the operation of oscillators, transmitters, as well as assessing the strength of radiated signals from antenna arrays.
  • Built-in Interference Detection: In Frequency-Counter Mode, MFJ tracks down powerful local signals that disrupt accurate SWR measurements. When picked up by an antenna under test, these signals compete with MFJ-266C's internally generated test signal to make SWR readings appear artificially high. Handheld antenna bridges are subject to additive interference, but only MFJ detects the offending signal, displays severity, and identifies frequency!
  • Powerful Signal Source: MFJ-266C also functions as a tunable signal source, supplying about 2 Volts peak-to-peak across the entire tuning range. You can use this signal to drive mixers, low-power amplifier stages, or filters, and use it as a source for checking antenna patterns on a range. Add a step attenuator, (MFJ-762) and it becomes a low-level signal source for testing receivers and pre-amps.
  • Take it With You! You'll love the compact size and bantam weight of MFJ-266C when perched on a tower. Also, push-button band switching lets you toggle across the spectrum with ease when tucked into cramped spaces.
  • User-Friendly Layout: MFJ-266C is ergonomic, antenna N-connector positioned on top of the case and everything else arranged and clearly marked on front panel -- right in front of your eyes. MFJ-266C’s operating manual was professionally written and illustrated to help you understand and master every function quickly. It also includes a guide for ensuring accurate results and getting the most from the unit's advanced features. In the back, you'll find a one-page "Quick Guide" that reviews all controls and functions.
  • Many Instruments in One: Having MFJ-266C is like owning several pieces of test equipment. You get a powerful wide-range signal source, Inductance/Capacitance meter, network analyzer, RF field-strength meter and a 500-MHz frequency counter all-in-one small package.
  • Bullet-Proof Construction: Features like the rugged aluminum case, solid-state band switching, robust internal construction, and solid-state LCD display ensure that bumps and drops won't faze the unit in the least. Expect it to hold calibration and reliable service for years to come.
  • Vital Statistics:
    • Uses eight internal AA alkaline batteries or optional 12VDC/110 VAC adapter with optional MFJ-1312D
    • Has built-in Li-ion battery charger.
    • Use optional MFJ-18650. Powerful 3.7V, 3000 mAh Li-on battery.
    • Draws 30-mA in counter and 140-mA in analyzer modes.
    • Includes N-to-SO-239 adaptor.

Size: 3.75” x 2.75” x 6.5” (W x D x H).

Weight: 599 g / 1.32 lbs

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