Mfj 269 manual download.TABLE OF CONTENTS
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Product Manual Guide | MFJ Enterprises Inc.Product Manual Guide
Mfj 269 manual download.Download manual
The meters indicate 50 ohm referenced SWR and load Impedance. Page Series Equivalent Impedance Only the ohm resistance remains. This is a powerful tool used in matching antennas. The MFJ places that tool at your fingertips. By checking a load for both Rp and Rs, you can see if either is close to the desired resistance. If one resistance value is close to When reactance is zero in a system that has selectivity, the system is said to be resonant. Page Match Efficiency 5. This allows the operator to easily locate frequencies where system reactance crosses zero.
This mode is reached after entering the Advanced 1 menu by pressing and releasing the MODE button three times. Page 24 SWR and the impedance meter is disabled. Unfortunately there is now way to cure these problems without causing the MFJ to become unreliable at HF, and any cures would require a calibration fixture to be used at UHF every time a series of measurements are made.
Page 26 Coaxial lines can lay in a pile or coil on anything, including a floor. Either battery or external power supplies can be used to power the analyzer, and the MFJ can be placed on or near large metallic objects with no ill effects.
Set the Vf to the known Vf of the transmission line. These functions can also be accessed from Distance to Fault modes. This functions: 1. Calculates length in feet of a transmission line or conductor for the number of electrical degrees up to degrees of a transmission line or conductor for the velocity factor and length entered and the frequency selected see 5. You can also directly measure the electrical length using the distance to fault mode sec 5. This mode is useful for calculating the length in degrees of matching sections and phasing lines.
To increase line length, press the GATE button. Use the Antenna connector shield for one lead and the center pin for the other.
If a balanced line is used, operate the MFJC only from internal batteries and keep it a few feet away from other conductors or earth. Do not attach any wires other than the feedline to the unit. Page Adjusting Tuners , is The impedance is ohms. Using a potentiometer or resistor decade box: 1. Connect the MFJC to one end of the system in this case you can use a broadband matching transformer.
Adjust the frequency and note only the SWR change. Page Adjusting Amplifier Matching Networks 4. Turn off the MFJC and re-connect the transmitter. The tubes and other components should be left in position and connected so that stray capacitance is unchanged.
Page Testing Rf Chokes Troublesome series-resonance can be detected by installing the choke in the operating location, and connecting only the MFJC from end-to-end of the choke through a short 50 ohm jumper cable.
By slowly sweeping the operating frequency range of choke, dips in impedance identify low impedance series-resonant frequencies.
Page Technical Assistance If you have any problem with this unit first check the appropriate section of this manual. If the manual does not reference your problem or your problem is not solved by reading the manual, you may call MFJ Technical Service at or the MFJ Factory at You will be best helped if you have your unit, manual and all information on your station handy so you can answer any questions the technicians may ask.
Page 40 This warranty is given in lieu of any other warranty expressed or implied. MFJ Enterprises, Inc. Print page 1 Print document 40 pages. Cancel Delete. Sign In OR. MFJ Assembly manual. MFJB Instruction manual. MFJN Manual. MFJB Handbuch. MFJb Schematic. MFJ Calibration. MFJ Manual Spanish. MFJ Test procedure.
MFJ Calibration proceedure. MFJ Calibration 1. MFJ Manual Italian. MFJ Manual German. MFJD Instruction manual. MFJD Manual. MFJmv Schematic. You can test and tune stubs and coax lines. You can manually determine velocity factor and impedances of transmission lines. Adjust and test RF matching networks and RF amplifiers without applying power.
Take it anywhere Fully portable, take it on remote sites, up towers, on DX peditions.
Download MFJ MFJ Instruction Manual | ManualsLib.MFJ -269C Instruction Manual
Large easy-to-read 2-line LCD display and side-by-side meters clearly display your information. Built-in CoaxCalculator TM -- mfj 269 manual download coax line length in feet given coax length in electrical degrees and vice versa for any frequency, any velocity factor great for building matching sections and phasing lines -- an MFJD exclusive!
Super mtj to use! Set the band switch and tune the dial -- just like on your rig. MFJD gives you a complete picture of your antenna. Built-in frequency counter. Also reads match efficiency. Also read inductance in uH and capacitance mfj 269 manual download pF at RF frequencies. You can read coax cable loss in dB and match efficiency. You can adjust UHF dipoles, verticals, yagis, quads and other antennas and determine their SWR, resonant frequency and bandwidth.
You can test mfj 269 manual download tune stubs and coax lines. You can manually determine velocity factor and impedances of transmission lines. Adjust and test RF matching networks and RF amplifiers without applying power. Windows 10 java edition free download it anywhere Fully portable, take kfj on remote sites, up towers, on DX peditions.
N connector. Free N-to-SO adaptor. Reviews Customer Reviews Based on 1 review Write a review. Please enable JavaScript in your browser for better use of the website!
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