Details about MFJ-209 HF/VHF SWR Analyzer + Ramsey CT-50 Frequency CounterSee original listing
Mar 13, 2012 12:46:03 PDT
[ 30 bids ]
Wakefield, RI, United States
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully ... Read moreabout the condition
MFJ-209 HF/VHF SWR Analyzer plus a Ramsey CT-50 Frequency Counter. A great pairing for the ham or SWL on a budget. Both work great and are all you need to get a resonant antenna, of lots of other tricks listed in the included original instruction manual. These have been among my most trusted tools for about 15 years, and I am sure they will continue to work for you for many years more. I will ship these carefully packed: MFJ-209, CT-50, RCA-to-BNC cable and 12V AC/DC transformer with the proper plug to power the MFJ-209 (or you can use batteries).
From the MJF Website:
"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 (Instruction Manual included):
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"
This equipment has been tested and works great. As with all used gear, no returns please.