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LDG Z-11
Antenna Tuner


Replaced by

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Discontinued Amateur Antenna Tuners 





Rear View | Internal View


The LDG Z-11 is a QRP tuner that can handle 0.1 to 60 watts (30 continuous) of RF power over the range of 1.8-30 MHz. The Z-11 features high quality design and manufacturing from our circuit boards to the enclosures made by Ten-Tec. The Z-11 QRP Autotuner is based on the AT-11design with attention paid to reducing size and power consumption. The tuner is a high efficiency, microprocessor controlled, switched "L" network designed to work with Dipoles, Verticals, Inverted Vees, Beams or any coax fed antenna in the 1.8 - 30 MHz range. It's small size and weight make it perfect for installing in existing QRP transmitters.

The Z-11 features latching relays which, once tuned, can be powered off and operated on your selected frequency band with no current draw from your power source. The Z-11 features an autosleep mode which turns itself off for you, tuning is then activated by pressing a button. Click here to view interior. Click here to rear panel. Radio cables are not included (see below).

Size 4.4 x 4.3 x 0.6 board, 5.0 x 8.5 x 1.25 enclosure (inches)
Weight: 4.2 oz.; 15 oz. with enclosure
Configuration: Switched "L" network
Inductor range: 20 uH
Capacitor range: 2700 pf
Tuning time: 0.1 to 3 seconds, 1.5 average.
Current consumption: 10 to 190 mA, 75 mA average. Zero current draw once tuned!
Auto Sleep Mode
Voltage requirement: 11 to 14 volts
Microprocessor Controlled
1.8 - 30.0 MHz Coverage
Tunes 6 to 800 ohm Loads
Power Range: 0.1 to 60 watts (30 watts continuous)
For Dipoles, Verticals, Vees, Beams or any Coax Fed Antenna

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