Antenna Analyzers

Manual ON line http://www. mfjenterprises. com/support. php

Product Description MFJ-269 & MFJ-269PRO Mini-manual. Size, 4.5 x 8 inches. Eight high-quality laminated pages. Single guide covers both analyzers. Complete short form operating instructions in a compact reference guide. Ideal as a ready reference and memory jogger for making SWR, impedance, inductance, capacitance, frequency and other measurement. https://www.niftyaccessories.com/MFJ-269.php

Power supply READ THIS SECTION BEFORE CONNECTING THIS DEVICE TO ANY POWER SOURCE. IMPROPER CONNECTIONS OR INCORRECT VOLTAGES MAY CAUSE DAMAGE TO THIS PRODUCT! WARNING: READ SECTION 2.2 THROUGH 2.4 (BATTERY INSTALLATION INSTRUCTIONS) BEFORE INSTALLING BATTERIES.

MFJ 269 The MFJ-269C is a compact battery powered RF impedance analyzer. It combines seven basic circuits; a variable oscillator, amplifier, RF Bridge, agc, buffer, microprocessor and display to perform a wide variety measurements. MFJ-269 – June 2000 MFJ-269CM - $349

useful measurements coaxial cable loss Coaxial Cable Lengths distance to an open or short, electrical or phsical impedance non-precision signal source and frequency counter

Versatile not just an antenna analyzer Antennas: ...............................................SWR, impedance, reactance, resistance, resonant frequency, and bandwidth Antenna tuners: .................................SWR, bandwidth, frequency Amplifiers: ................................................Input and output matching networks, chokes, suppressors, traps, and components Coaxial transmission lines: ...........SWR, length, velocity factor, approximate Q and loss, resonant frequency, and impedance Filters: .......................................................SWR, attenuation, and frequency range

Other uses Matching or tuning stubs: ...............SWR, approximate Q, resonant frequency, bandwidth, impedance Traps: .............................................................Resonant frequency and approximate Q Tuned Circuits:...........................................Resonant frequency and approximate Q Small capacitors:.....................................Value and self-resonant frequency RF chokes and inductors:....................Self-resonant frequency, series resonance, and value Transmitters and oscillators: ….....Frequency

Broad-band Voltage Detectors and External Interference: Laboratory grade network analyzers use expensive high-selectivity gain- stabilized receivers to avoid off-frequency interference and ensure measurement accuracy. Building these sophisticated detectors into the MFJ-269C (or any small handheld unit) would drive the price far beyond the reach of most hobbyists. As an alternative, we use broadband detectors that provide accurate measurements at a much lower cost. The only drawback is that broadband detectors can be sensitive to powerful out-of-band signals.

Measuring Impedance of a Dipole

Transmission line loss

LMR-240 Specifications Look your specific cable up for best results

Coax Loss Measurement

Distance to Fault / Line Length Distance to Fault (DTF) (for HF/VHF only) With Vf entered in the previous function, the next function in the display menu is: Distance to Fault in Feet measures any line type (or impedance), including the length of a Beverage or other antenna (any terminations must be removed).

Antenna Measurements Dual Band J-Pole HF Dipole Hand Held Whips