MFJ-226 Graphical Antenna Impedance Analyzer
7 Version 1A 1R02
Enter. To go back to the Settings menu, press the Return Arrow. See
menu items below:
1. Backlight: Controls screen and keypad illumination.
Auto: Turns backlight off after a few seconds to
conserve power.
On: Turns backlight on full time.
Off: Turns backlight off full time.
2. Auto Power Off: Activates or deactivates automatic shut-down
(power conservation).
Enabled: Shuts the analyzer down if no keys are pressed
for 5-minutes.
Disabled: Analyzer remains on until turned off manually.
3. Battery Menu: Sets low-battery warning threshold (upper right
corner of LCD screen).
Alkaline: Low-battery indicator threshold set for Alkaline
cells.
Disable: Low-battery indicator threshold set for NiMH
rechargeable cells.
4. Step Size Unit: Select between 1MHz to 1Hz steps.
5. LCD Contrast: Select contrast settings between 1 and 7. 3 or
4 is usually optimum.
6. Cal Data Protect: Locks global calibration data so that it can't be
erased by accident.
Lock Cal Data: Protects 1-230 MHz default calibration
data
Unlock Cal Data: Permits global recalibration (see
Calibration Procedures)
Normally you will only unlock calibration data to perform a global
recalibration of the instrument over its entire frequency range (See
Calibration).
7. System Information: General information (no choices required):
Model: Manufacturer's model number
F/W/Ver: Analyzer processor's firmware version
Battery: Five-bar scale shows battery status (1 bar
empty, 5 bars full).
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