Here's what the MFJ page says about the MFJ-209:

MFJ-209
                                                       Price: $149.95
[Why pay extra for a digital display you won't use anyway?--Buddy]

   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


-- 
Buddy Brannan, KB5ELV: Executive In Training!
Independent Watkins Manager #361534

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