MFJ HF/VHF Graphic Analyzer
MFJ HF/VHF TwoPort Graphic Antenna Analyzer
Take RF testing to the next level with the new MFJ!
All the basic analyzer functions you’ve come to depend on plus a host of advanced features like builtin LCD graphics, twoport VNA measurement, PCInterface using IGminiVNA freeware, and precise DDS frequency control . . . yet still easytouse!
Two Analyzers in One
Out in the field, MFJ is a compact completely selfcontained handheld analyzer. On the bench it becomes a fullfledged twoport (S21) desktop machine when teamed up with your PC. Using powerful IGminiVNA freeware, you’ll run detailed data analysis and then print out stunning colorgraphic plots to document your work!
Seeing is Believing
Get a big picture every time with MFJ’s builtin backlighted inch LCD graphic display. Make fine circuit adjustments using fullscreen easytoview 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 HFVHF Coverage
Tunes from 1.5 MHz to 179.9 MHz with rocksolid stability and no gaps. That’s because the MFJ’s VFO is a stateoftheart programmable DDS (direct digital synthesis) generator with pinpoint kHz frequency resolution. DDS control means no mechanical band switches or tuning elements, just a reliable velvetsmooth optical encoder to glide across the spectrum.
Powerful Clean Signal Source
The MFJ DDS stimulus generator also gives you a leveled dBm signal source for driving mixers, lowpower amplifiers, filters, networks, diplexers, and antennas on the test range. And, your test signal is always clean, with over 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 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.
What the MFJ Measures:
- SWR (1:1 to 9.9:1)
- Complex Impedance (R+jX)
- Impedance Magnitude (Z)
- Return Loss (RL, dB)
- Phase (°)
- Capacitance (pF)
- Inductance (.1uHuH)
- Cable Length (0.m)
- Cable Loss (dB)
TwoPort Flexibility
In addition to traditional singleport (S11) reflectedpower measurements, MFJ features an invaluable advantage of making twoport (S21) forwardpower measurements, essential for optimizing filters, diplexers, matching networks, etc. It bridges the gap between a simple scalar analyzer and true vectoranalysis performance.
Ergonomic Operation
“Advanced features” conjure visions of greater complexity and more buttons to push . . . not true for MFJ! The graphic display is “advanced” because it places more information at your fingertips without needless scrolling and searching. Also, the layout is unique with three large softtouch selector buttons located on the front panel next to the screen and a large sidemounted frequency control knob conveniently positioned for your right hand. Everything is located where it needs to be for intuitive operating and unobstructed screen view!
Easy To Power
The MFJ runs from multiple power sources to suit almost any operating environment. In the field, it powers itself for up to four hours using three selfcontained AAA NiMh cells. On the bench, it accepts any convenient external volt DC power source or a good quality volt AC wall adapter like the MFJD. It also runs off your PC’s USB jack. Connecting an external power source automatically initiates recharging of the internal NiMh batteries with a LED charge indicator that goes out when the charge cycle is complete.
SelfCalibrating
In order to maintain outofthe box accuracy, all analyzers require periodic calibration checks a potentially timeconsuming operation that may require special RF loads and stepbystep procedures. However, the MFJ uses builtin firmware to perform its entire calibration routine in less than a second! Simply initiate the “calibrate” command and you’re done!
Rugged Construction
The MFJ has the same tough all aluminum MFJstyle enclosure you’ve come to rely on in the field and on the bench. It’s fully shielded and constructed to take its lumps while continuing to deliver dependable performance year after year.
Specifications:
- MFJ requires 4 NiMh AAAcells or optional power adapter MFJD
- PC interface requires a USB TypeB cable.
- Analyzer’s OUT port is SO. IN port is SMAfemale.
- 3 3/32 W x 6 1/8H x 1 1/2D inches.
- Weight with batteries is lb., oz.
- Typical 12V power consumption is 230 mA, increasing to 550 mA when batteries are recharging at max.
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