LDG Z-11Pro - Getting to Know Your Z-11 Pro

Getting To Know Your Z-11Pro
Your Z-11Pro is a quality, precision instrument that will give you many years of outstanding
service; take a few minutes to get to know it.
• Your Z-11Pro can be used with any transceiver or transmitter with coax output operating in
the HF range at no more than 125 watts peak output. You can set the unit to tune
automatically whenever the SWR exceeds a set value, or you can set it to tune semi-
automatically when you start a tuning cycle by pressing the Tune button.
The front panel presents six pushbutton controls, and four LEDs:
• Func: Selects alternate functions for other buttons (see section on Operation)
• C Up: Manually increase capacitance
• C Dn: Manually decrease capacitance
• L Up: Manually increase inductance
• L Dn: Manually decrease inductance
• Tune: Initiates either a memory or full tuning cycle, places the tuner in "bypass" mode, and
manually stores tuning parameters
• LEDs
1.5: Green
2.0: Yellow
>3.0: Red
Tune: Red
Your Z-11Pro has no power switch. It automatically powers up whenever RF is present or a
button is pressed, and after tuning, automatically enters a “deep sleep” state in which it draws
only 25 microamps, effectively off. The tuner will automatically "wake up" the next time you
start a tuning cycle, a button is pressed or when an automatic tuning cycle is needed. The latching
relays hold the tuned configuration indefinitely, even while DC power is completely removed.
Tuning memories are stored indefinitely in EEPROM memory.
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