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MFJ 209 1.8 - 170 MHZ SWR ANALYZER HF VHF

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£191.95

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MFJ 209 1.8 - 170 MHZ SWR ANALYZER HF VHF

MFJ 209 1.8 - 170 MHZ SWR ANALYZER HF VHF

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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 MHz 4 - 10 MHz 10 - 26.2 MHz 26.2 - 62.5 MHz 62.5 - 113 MHz 113 - 170 MHz A 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 frequency counter, 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, efficiency Antenna tuners: SWR, frequency Amplifiers: Input and output networks Coaxial transmission lines: SWR, velocity factor, losses, resonance Balanced transmission lines: Impedance, velocity factor, resonance Matching or tuning stubs: SWR, resonant frequency, bandwidth Traps: Resonant frequency Tuned Circuits: Resonant frequency Small capacitors: Value RF chokes and inductors: Self resonance, series resonance, value Transmitters and oscillators: Frequency

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