MFJ 209 1.8 - 170 MHZ SWR ANALYZER HF VHF

MFJ 209 1.8 - 170 MHZ SWR ANALYZER HF VHF

  • £199.96
Tax included.


The MFJ-209 SWR Analyzer is an easy to operate, versatile test instrument for analyzing nearly any 50 ohm RF system on frequencies between 1.8 and 170 MHz. In addition the MFJ-209 can be used as signal source.The MFJ-209 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.The MFJ-209 covers all ham bands from 2 meters to 160 meters. The dial calibration is approximate and for reference only. The actual frequency may vary from what is marked on the front panel. The MFJ-209 FREQUENCY switch selects the following frequency ranges:1.8 - 4 MHz4 - 10 MHz10 - 26.2 MHz26.2 - 62.5 MHz62.5 - 113 MHz113 - 170 MHzA frequency counter can be connected to the "FREQ. OUT" jack (RCA phono) to get a more accurate reading of the frequency. As an alternative to a frequencycounter, you can zero beat the output with an HF receiver. See the section on zero beating the MFJ-209 with a receiver.The MFJ-209 can be used to adjust or measure the following:Antennas: SWR, resonant frequency, bandwidth, efficiencyAntenna tuners: SWR, frequencyAmplifiers: Input and output networksCoaxial transmission lines: SWR, velocity factor, losses, resonanceBalanced transmission lines: Impedance, velocity factor, resonanceMatching or tuning stubs: SWR, resonant frequency, bandwidthTraps: Resonant frequencyTuned Circuits: Resonant frequencySmall capacitors: ValueRF chokes and inductors: Self resonance, series resonance, valueTransmitters and oscillators: Frequency