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LDG Z-11 ProII
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The return of a legend. Meet the Z-11ProII, everything you always wanted in a small, portable tuner designed from the ground up for battery operation. Only 5" x 7.5" x 1.5", and weighing only 18 ounces, it handles 0.1 to 125 watts, making it ideal for both QRP and standard 100 watt transceivers from 160 - 6 meters.

The Z-11ProII uses LDG's state-of-the-art processor-controlled Switched-L tuning network. It will match dipoles, verticals, inverted-Vs or virtually any coax-fed antenna. With an optional LDG balun, it will also match long wires or antennas fed with ladder-line.

The Z-11ProII has 2,000 memories automatically storing tuning configurations for each frequency and band as you use them. Frequency sensing circuitry lets the Z-11Pro "know" your operating band and frequency. Whenever you transmit on or near a frequency you've used before, the Z-11ProII retunes from memory almost instantly. Full auto mode tunes with SSB. Just speak into the mic and it tunes! Memories are retained indefinitely.

Rugged and easy-to-read LEDs indicate SWR and status. The Z-11ProII uses latching relays which retain the tuned configuration even when powered down; current draw when not tuning is effectively zero


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LDG Autotuner Comparison
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What LDG Tuner is right for me?
Meet the Z-11ProII, everything you always wanted in a small, portable tuner designed from the ground up for battery operation. Only 5" x 7.5" x 1.5", and weighing only 18 ounces, it handles 0.1 to 125 watts, making it ideal for both QRP and standard 100 watt transceivers from 160 - 6 meters.



The Z-11ProII uses LDG's state-of-the-art processor-controlled Switched-L tuning network. It will match dipoles, verticals, inverted-Vs or virtually any coax-fed antenna. With an optional LDG balun, it will also match longwires or antennas fed with ladder-line.


The Z-11ProII has 2,000 memories automatically storing tuning configurations for each frequency and band as you use them. Frequency sensing circuitry lets the Z-11Pro "know" your operating band and frequency. Whenever you transmit on or near a frequency you've used before, the Z-11ProII retunes from memory almost instantly. Full auto mode tunes with SSB. Just speak into the mic and it tunes! Memories are retained indefinitely.



Rugged and easy-to-read LEDs indicate SWR and status. The Z-11ProII uses latching relays which retain the tuned configuration even when powered down; current draw when not tuning is effectively zero.

0.1 to 125 watt power range (SSB and CW), 100W on 6M.
Easy to read LED display for SWR and status.
2000 memories for instantaneous band changing.
Tuning time: 0.1 to 6 seconds full tune, 0.1 seconds memory tune.
Selectable user parameters: Auto/Semi, threshold, and more.
1.8 to 54.0 MHz coverage. Built-in frequency sensor.
Tunes 6 to 1000 ohm loads (16 to 150 on 6M).
For Dipoles, Verticals, Vs, Beams or and Coax Fed Antenna.
Optional external Balun allows tuning of random length, long wire or ladder line fed antennas.
Includes DC power cable
Power requirements: 6 to 16 volts DC at 300 mA Max. 25 uA standby current.
User installable 4-AA battery holder (not supplied).
Small Size Enclosure: 7.7L" x 5.0W" x 1.5H". Weight: 1.5 pounds.


Note for use with FT-857(D) or FT-897(D): If you plan to use VHF or UHF, these two radios may transmit a small amount of VHF/UHF RF energy out of the HF connector and will fool the tuner into tuning. Not all radios do this. This anomaly with the radio does not hurt the radio or the tuner. Simply turn off DC power to the tuner or place the tuner into Semi mode if the issue becomes too annoying.

(2 reviews)Write a review
William Sefton
William|21-07-2015
Replaced the 9:1 unun on my 65' longwire with an EAntenna 400w unun. The LDG Z11 Pro2 tune from 160 to 6m with a vswr below 1.5:1. I only work QRP CW, and had a blast on 17m, thanks to the LDG. Its the tuner I should have got years ago.... A must for any radio. I use it with my FT-897 (oodles better than my AT897) I recommend the EAntenna unun and the LDG Z11 Pro 2. worth their weight in gold.... Get one, you know it makes sense...
Exelent Product
Gareth|28-01-2013
Well i have bought this as my first ATU and after serveral hours of use i have to say its extremely simple and easy to use. have had several QSO's though it so A1 to LDG on this little number
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