MFJ-226 Graphical Antenna Impedance Analyzer
8 Version 1A 1R02
ENTERING SINGLE-FREQUENCY MODE
To enter the analyzer's Single-Frequency Mode, go to the Main Menu
and select Single Freq using the up/down arrows. Then press Enter.
The SWR screen will come up.
Screen 1, SWR, Frequency: The opening Single-Frequency screen
displays SWR, and Frequency. Note that SWR readings appear in 1-
inch high numerals for easy viewing. A bargraph is also displayed for
a visual representation of the SWR. When SWR opens, you will need
to set the DDS generator to your desired test frequency.
SETTING THE DDS OPERATING FREQUENCY
There are two ways to set DDS frequency -- Direct Entry and
Scroll/Step Entry. The Default (or start) frequency is 1 MHz.
Direct DDS Entry: Use the keypad to enter the frequency
numerically. The Mode key sets the decimal point (ex. 146.750).
Press Enter to send your selection to the DDS.
Scroll/Step Entry: Use Up/Down Arrows to manually "tune" the DDS
while watching the frequency display. Hold the key down to scroll -- or
tap to step in small increments. Scroll/step is especially useful for
finding minimum SWR or targeting a specific SWR reading. Note that
the operating frequency may be modified while viewing the screen
any of the four Single-Freq data screens.
Use Mode to step through the three remaining Single-Freq screens.
The menu is circular and will return to SWR. Press Return Arrow to
escape.
SINGLE-FREQUENCY MENU
The Single-Freq menu opens with the SWR screen, but this mode
has four additional screens. Step through them using the Mode key.
Screen 2. SWR Z R X Display: Displays similar to the first screen
but has the SWR in smaller characters and also displays the Z R and
X of the load. (Added in firmware V01R02 and is not in earlier firmware.)
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