Mfj 269c instruction manual lfhfvhfuhf swr analyzer 3 the mfj 269c is also useful as a nonprecision signal source. Brst 12v acdc adapter replacement for mfj mfj 229 mfj 249 mfj 259 mfj 259b mfj 269 mfj 269c mfj 269pro mfj 929 mfj 959 mfj 993b swr antenna analyzer intellituner automatic tuner 12vdc power psu. Mfj 249 antenna analyzers sch service manual download. I havehad a working mfj 266 i need the schematic or need to know what d3 is on the rf board it is a sot23 device with the markings ah mighty be a hv but i am 90% sure it is ah. I have had one of these units for over 20 years and it has never missed a beat. Service manuals, schematics, eproms for electrical technicians. If you are not using an mfj starter pack you should follow the instructions in this chapter for computer interfacing. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from mfj enterprises, inc. The standard way we describe impedance is a resistance in series with a reactance.
Bizarre readings, weird numbers, strange reading, and no obvious cause. The b model added an optional rechargeable battery and the c model extend the frequency range to cover the 220 mhz band. Oct 14, 2011 noteable is that the price of mfj 259b and mfj 266 are nearly the same at a seller. Mfj 259c instruction manual hfvhf swr analyzer 4 1. They also display swr, complex impedance, and impedance magnitude simultaneously, all on the same easytoread lcd screen. The mfj266 may be powered with internal aa batteries or with an external dc supply. The manual contains important safety information youll need to know to avoid damaging your unit. Handles 100 watts for 10 minutes, 1500 watts for 10 seconds. Ideal as a ready reference and memory jogger for making swr, impedance, inductance, capacitance, frequency and other measurements. Here you will find instruction manuals, service manuals, user guides. The mfj 266c will not run on external power and batteries at the same time.
Mfj s innovative differentialt tuner uses a differential capacitor that makes tuning easier than ever. All information, images, and documents on this website are the sole property of mfj enterprises, inc. It is used very often for hf and uhf and continues to give me accurate results. Mfj 269 instruction manual hfvhfuhf swr analyzer 3 the mfj 269 also functions as a nonprecision signal source and frequency counter. Mfj269c hfvhfuhf swr analyzer bottom line as it covers all ham bands from 630 meters to 70 centimeters, the mfj269c is a single instrument that should satisfy the rf measurement requirements needed by most hams. I opened a ticket with mfj and they had me test the diodes on the meter board, which turned out to be bad. The mfj 264 is ham radios most versatile 50 ohm dummy load. The mfj 986 is a rugged roller inductor antenna tuner that handles 3kw pep ssb amplifier input power 1500 watts pep ssb output power.
Mfj266 is ergonomic, with the antenna nconnector positioned on top of the case and everything else carefully arranged and clearly marked on the front panel right in front of your eyes. If you cannot download this file, try it with chrome or firefox browser. Simplified operating instructions and explanations. The operations indicated in the procedure can be followed under normal conditions. They cover hf and vhf, plus uhf amateur and commercial frequencies with digital precision. The quality and design of the unit, to me, appears as if someone said well we have all these project boxes, lets see what we can build with them. This guide covers the operation of all three mfj 266 models. Mfj 269c pro is very similar to the mfj 269c, but has its uhf range coverage 430 to 520 mhz and an extended commercialstyle cabinet for lab work helps protect knobs and connectors from damage. When pressed the red button should lock into position. Mfj266c is ergonomic, antenna nconnector positioned on top of the case and everything else arranged and clearly marked on front panel right in front of your eyes. The mfj 266c requires eight optional aa nimh or nicad cells, optional mfj 18650 3. The mfj269c pro is a compact battery powered rf impedance analyzer especially designed. The following mfj 269 repair manual pdf document start with intro, brief discussion until the indexglossary page, read the table of content for additional information, when presented. I just bought an antenna analyzer from mfj, mfj 269.
Since mfj 259b firmware has several versions under the same model number, you may find some final performance or function verification steps invalid. Mfj enterprises inc,ameritron,hygain,hygain,cushcraft,vectronics,mirage, mfj, mfj enterprises,antenna,radio,ham radio,amateur radio,tuner,analyzer,starkville,amplifier,xiegu,loop antenna. I took a look inside the case, there were no visible signs of problems associated with this mfj product bad solder connections, shorts, etc. If you have some stuff that not is listed here you can donate this by contact mods. In this page you find schematic, users and instructions manuals, service manuals, technical supplement, leaf leads and other good stuff. Lower band is retuneable to cover 470940 khz for maritime and 600 meters. Anyhow, when i bought it from burghardt, the technician there assured me that it included a schematic as part of the manual, but when i got it, there wasnt one. The inductor and capacitor can be anything close, but the resonant frequency will change. Mfj 266cs operating manual was professionally written and illustrated to help you understand and master every function quickly. The drawing legend indicates that its for the 269, but like your 259 schematic, its hard to read. Alteclansing manuals ameritron manuals aor manuals astatic manuals azden manuals dentron manuals dstar manuals flexradio manuals fostex manuals garmin manuals hewlettpackard manuals hygain manuals icom manuals kenwood manuals ldg electronics manuals mfj enterprises manuals mirage manuals mosley manuals radio shack manuals ubiquiti manuals. The battery tray door is located on the back of the analyzer case near its base.
Mfj antenna analyzer operation guides nifty accessories. Modify your amateur radio to get better performance, or more functions. Mfj 259b antenna analyzers sch service manual download. View and download mfj 266b instruction manual online. It does it all works with all radios from 160 meters through 650 mhz and from qrp to the full 1500 watt legal limit. Get all of the basic rfdiagnostic functions that you need and more by using one of these mfj 266 hfvhfuhf antenna analyzers. An initial pcb pre calibration procedure is assumed. The mfj 9420 is specially designed to deliver performance you never thought possible from a low power radio. I am suspecting that this is not just a 269 problem but probably older analyzers as well. This site is for hams there want all the best from his radioamateur equipment.
Mfj266s operating manual was professionally written and illustrated to help you understand and master every function quickly. Mfj has 499 product models in radio and 500 pdf manuals in english for download. Mfj 259 antenna analyzers sch service manual download. For basic handheld units like the mfj 259c, the calibration plane is always fixed at the analyzers rf connector. It provides a relatively pure harmonics better than 25 dbc signal of approximately 3 vpp 20 mw into a 50 ohm load. Mfj 269 instruction manual hfvhfuhf swr analyzer note. At a first look there seems to be just differences in metering panels and connectors. Power button has a raised lip around it to keep the unit from being turned on accidentally a common. Mfj 266c is ergonomic, antenna nconnector positioned on top of the case and everything else arranged and clearly marked on front panel right in front of your eyes. So if any one has an mfj266 antenna analyzer can you look inside on the rf board next to. Congratulations on your choice of the mfj 9420 20meter transceiver. On the schematic, the usual problem is that diodes d15 and d16 are blown.
The mfj 259c is the latest entry in a long line of timetested designs using proven technology and rugged construction to ensure years of reliable service. The operating frequency range of this unit extends from 1. Please read this manual carefully before attempting to operate your new radio. Mfj 269 cal proc and schematic john, attached is the cal procedure and schematic for the mfj 269. Mfj 269c and mfj 269cpro analyzer mini manual by nifty accessories. The problem is usually the diodes in the broadband detector, which are easily destroyed by rf, esd, and transmitting into the antenna connector. This calibration procedure is the correct procedure for later mfj 259bs. Seems to work pretty well, though i have a little doubt about the accuracy. Mfj266 antenna analyzers available here radioworld. To avoid needless damage and ensure top performance, please follow the guidelines below when.
Mfj 226 graphical antenna impedance analyzer 5 version 0c powering the mfj 226 the mfj 226 requires two 2 aa batteries. Mfj 269 antenna analyzer arrived with the usual symtoms. Introduction the box can be tested completely after assembling with the battery holder initially unassembled. Mfj dip meter adapter kits mfj66c free shipping on most. Mfj mfj 269 have 2 pdf manuals in english mainly including calibration procedure guide, instruction manual.
The mfj 269 still costs more allthough mfj 266 also does support uhf like the mfj 269. Please read through this manual carefully before powering up your analyzer for the first time. Add a step attenuator, mfj 762 and it becomes a lowlevel signal source for testing receivers and preamps. Mfj259 calibration manual added and this includes useful info as well. Go to the product page and click on the product manuals tab. If you use opera you have to disable opera turbo function to download file. You may use alkaline nonrechargeable or nimh rechargeable cells. Mar 23, 2010 i am using 10x 3200ma nihm aa cells, 16v input from psu left the mfj charging them for 4 days not one volt increase still flat. Customer accounts did not transfer over to the new site so. Note that there is a limit to the number of files you can download. Large easytoread two line lcd display and sidebyside meters clearly display your information. Mfj266cs operating manual was professionally written and illustrated to help you understand and master every function quickly. Mfj 249 swr analyzer instruction manual 4 operation of the mfj 249 after the mfj 249 is connected to a proper power source the red onoff button can be depressed to apply power.
Unless in the advanced modes, this unit displays load impedance in the conventional manner we are all used to seeing. Mfj radio user manual for pdf download device manuals. Use them to measure capacitance, inductance, field. Complete short form operating instructions in a compact reference guide. I purchased the mfj 266 in hopes that it would prove a worthy companion to my geeky electronic arsenal of tools. Mfj 269c hfvhfuhf swr analyzer bottom line as it covers all ham bands from 630 meters to 70 centimeters, the. Your analyzers calibration plane is the point of reference where all measurements have greatest accuracy gain reference 0db and phase shift 0 degrees. Mfj 259 antenna analyzer calibration, problems, and service.
It certainly has not been treated with kid gloves having been dropped more than once. One port vector network analyzer vna measures the electrical parameters of one port of a network wont measure transmission parameters of a 2 port network network electrical circuit a port is one complete signal path. They also display swr, complex impedance, and impedance magnitude simultaneously, all on the same easytoread lcd screen find mfj 266c hf vhfuhf antenna analyzers mfj. The mfj 266 may be powered with internal aa batteries or with an external dc supply.
45 1194 487 1411 857 1288 1277 1168 290 758 1295 921 1163 359 1592 596 1445 1306 1440 776 1507 710 1177 1370 793 477 342 705 631 316 784 1604 822 1117 826 129 813 925 1299 236 66 1391 456