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Reduced Price 1.8-170 MHz HF/VHF SWR Analyzer Expand

MFJ 1.8-170 MHz HF/VHF SWR Analyzer

MFJ Enterprises, Inc.

MFJ-209 by MFJ Enterprises, Inc.


MFJ-209 is a basic HF/VHF SWR Analyzer that lets you read SWR from 530 KHz to 230 MHz quickly only on a single analog meter.

More details


  • Easy to operate: versatile test instrument for analyzing nearly any 50 ohm RF system on frequencies between 1.8 and 170 MHz.
  • Signal source: Can be used as signal source.
  • Combines three basic circuits: a wide range oscillator, a 50-ohm RF bridge, and a calibrated bridge unbalance indicator. This combination of circuits allows measurement of the SWR (referenced to 50 ohms) of any load connected to the ANTENNA connector.
  • Covers all ham bands from 2 meters to 160 meters (1.8-4MHz, 4-10MHz, 10-27MHz, 27-70MHz, 70-114MHz, 114-170MHz). The dial calibration is approximate and for reference only. The actual frequency may vary from what is marked on the front panel.
  • A frequency counter, such as the MFJ-346, can be connected to the "FREQ. OUT" jack (RCA phono) to get a more accurate reading of the frequency. As an alternative to a frequency counter, you can zero beat the output with an HF receiver.

The MFJ-209 can be used to adjust or measure the following:

AntennasSWR, resonant frequency, bandwidth, efficiency
Antenna tunersSWR, frequency
AmplifiersInput and output networks
Coaxial transmission linesSWR, velocity factor, losses, resonance
Balanced transmission linesImpedance, velocity factor, resonance
Matching or tuning stubsSWR, resonant frequency, bandwidth
TrapsResonant frequency
Tuned CircuitsResonant frequency
Small capacitorsV alue
RF chokes and inductorsSelf resonance, series resonance, value
Transmitters and oscillatorsFrequency

Uses 10 internal AA alkaline batteries (not included) or optional 12VDC/110 VAC adapter with optional MFJ-1312D

Size: 4" x 2 1/2" x 6 3/4" (W x D x H).

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