MFJ-225 Graphical Antenna Analyzer, 1-180 MHz Multifunction Analyzer
MFJ-225 Graphical Antenna Analyzer, 1-180 MHz Multifunction Analyzer. This is a diplay unit from the MFJ hamfest display booth. Still has the factory protective plastic film over the display screen.
The screen may look a bit funky, but that's just the protective plastic film on the screen. It can be powered by either a USB cable (inluded) or four AAA NiMH batteries (not incuded).
Cosmetically has some adhesive residue on the back, some slight scuffs on the case, no extra screw holes. Here is part of what MFJ has to say about this on their website. MFJ-225 HF/VHF Two-Port Graphic Antenna Analyzer.
SWR (1:1 to 9.9:1). In addition to traditional single-port (S11) reflected-power measurements, MFJ features an invaluable advantage of making two-port (S21) forward-power measurements, essential for optimizing filters, diplexers, matching networks, etc. It bridges the gap between a simple scalar analyzer and true vector-analysis performance. MFJ-225 can be powered by four AAA alkaline batteries or four AAA Ni-MH rechargeable batteries batteries not incl. Optional MFJ-1312D, or any external 12 VDC power is required for the built in recharging circuit with charge indicator LED. LED will light while charging and turn off when cycle is completed. On the bench, power it through the USB power port using any USB power source.Fat Cat will inslude the optional USB power cable. Two Analyzers in One Out in the field, MFJ-225 is a compact completely self-contained handheld analyzer.
On the bench it becomes a full-fledged two-port (S21) desktop machine when teamed up with your PC. Using powerful IG-miniVNA freeware, you`ll run detailed data analysis and then print out stunning color-graphic plots to document your work! Seeing is Believing Get a big picture every time with MFJ-225`s built-in back-lighted 3-inch LCD graphic display. Make fine circuit adjustments using full-screen easy-to-view SWR bar graph, capture vivid swept displays for SWR, impedance, return loss, phase angle, more! Operation is simple, you can adjust the center frequency, tuning step, and sweep width instantly while viewing your plot, literally shaping it before your eyes.
Continuous HF-VHF Coverage Tunes from 1.5 MHz to 179.9 MHz with rock-solid stability and no gaps. That`s because the MFJ-225`s VFO is a state of the art programmable DDS (direct digital synthesis) generator with pin-point 1-kHz frequency resolution. DDS control means no mechanical band switches or tuning elements, just a reliable velvet-smooth optical encoder to glide across the spectrum. Powerful Clean Signal Source The MFJ-225 DDS stimulus generator also gives you a leveled -5 dBm signal source for driving mixers, low-power amplifiers, filters, networks, diplexers, and antennas on the test range.And, your test signal is always clean, with over -50 dBc of harmonic and spur suppression. That`s better than many precision lab generators costing thousands of dollars!
Connect an external step attenuator, and it becomes a highquality signal generator for peaking sensitive receivers and preamplifiers. Information Powerhouse The MFJ-225 simultaneously compiles and displays all important parameters you need on a single screen, giving you a wider range of results at a glance. You`ll work faster and smarter without the inconvenience of scrolling through menus or making tedious conversions to get your data. GENERAL NOTE ABOUT FACTORY DEMO/DISPLAY UNITS. This is a fully-functional unit that was used as a static display either in MFJ's offices or as part of MFJ's hamfest display booth. As such, it may have cosmetic scuffs or scrapes on the cabinet, it may have some extra, tiny holes (usually two at the most) in the cabinet from security brackets on the hamfest displays.Hamfest displays often had a "show sticker" applied to the cabinet. If so, those have been removed, and there may be some adhesive residue left where the sticker once was. Goo-Gone and rubbing with a thumbnail will usually remove all or most of the residue.
The residue is a cosmetic thing only. Some case screws may be missing, or may be mismatched. Please look closely at the photos, as those are the best guide to the cosmetic condition of the cabinet or case. If you'd like, you can always repaint the cabinet with readily available matte-finish black paint. No factory packaging or paperwork is included. If it is not in the photos, it is not included, unless the listing specifies it is included.