De MFJ-259D antenne analyzer meet de SWR en de impedantie van een antenne.

 VHF/220 MHZ, .53-230 MHZ

De antenne analyzer is te gebruiken van 530 kHz-230Mhz

Er kunnen de volgende metingen worden uitgevoerd en zichtbaar worden gemaakt in het display en/of van eentweetal draaispoelmetertjes de waarden af te lezen:kabel lengte (feet), kabel verlies (dB), capaciteit (pF), Impe-dance of Z magnitude (Ohms), impedance phase (degrees), Induc-tance (micro Henry), Reactance or X (Ohms), Resistance or R(Ohms), Resonance (MHz), Return loss (dB), Signal frequency(MHz), SWR (referenced to 50 Ohms).

Naast het bovengenoemde kunt u met deze MFJ-259C eenvoudig en beter het afregelen van een antenne bekijken ook van een antennetuner de SWR, bandbreedte en frequentie bereik meten, evenzo de in- en output netwerken van bijvoorbeeld eindtrappen, traps omde resonantie frequentie te bepalen, frequentie van zenders enoscillatoren

Verder heeft men de mogelijkheid om een in de buurt opererende zender in het display de zendfrequentie af te lezen. Dit kunt u doen door een antenne(tje) aan de betreffende BNC-connector te koppelen. Met deze BNC-ingang kunt u de MFJ-259C ook gewoon als counter gebruiken.

is de ruimte waar de 10 AA batterijen of nicads ingaan van buiten bereikbaar.

De MFJ259C kan ook gevoed worden m.b.v. een externe voedingsbron.

The Worlds most popular SWR/RF analyzer just got incredibly better and gives you more value than ever!
MFJ-259D gives you a complete pictures of your antennas performance. You can read antenna SWR and Complex Impedance 0.5  to 230MHz
Read Complex Impedance as series resistance and reactance (R+jX) or as magnitude (Z) and phase (degrees). You can determine velocity factor, coax cable loss in dB, length of coax and distance to a short or open in feet. You can read SWR, return loss and reflection coefficient at any frequency simultaneously at a single glance. Also read inductance in UH and capacitance in pF at RF frequencies. Large easy-to-read two line LCD screen and side-by-side meters clearly display your information. Built-in frequency counter, Ni-Cad charger circuit, battery saver, low battery warning and smooth re-duction drive tuning and much more.
Super easy to use! Just set the bandswitch and tune the dial -- just like you transceiver. SWR and Complex Impedance are displayed instantly!

Heres what you can do
Find your antennas true resonant frequency. Trim dipoles and verticals.
Adjust your Yagi, quad, loop and other antennas, change antenna spacing and height and watch SWR, resistance and reactance change instantly. Youll know exactly what to do by simply watching the display. Perfectly tune critical HF mobile antennas in seconds for super DX -- without subjecting your transceiver to high SWR. Measure your antennas 2:1 SWR bandwidth on one band, or analyze multiband performance from 1.8 to 170Mhz! Check SWR outside the ham bands without violating FCC rules. Take the guesswork out of building and adjusting matching networks and baluns. Measure distance in feet to a short or open in faulty coax. Measure length of a roll of coax, coax loss, velocity factor, impedance. Measure inductance and capacitance. measure resonant frequency and approximate Q of traps, stubs, transmission lines, RF chokes, tuned circuits and baluns. Adjust your antenna tuner for a perfect 1:1 match without creating QRM. And this is only the beginning! the MFJ-259C is a complete ham radio test station including -- frequency counter, RF signal generator, SWR Analyzer, RF resistance and Reactance Analyzer, Coax Analyzer, Capacitance and Inductance Meter and more!

Take it Anywhere!
Fully portable, take it anywhere -- remote sites, up towers, on DX-peditions