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Introduction
Congratulations on selecting the LDG AT-7000 tuner. The AT-7000 provides automatic antenna
tuning for your Icom IC-7000 (and some other Icom radios) across the entire HF range plus 6
meters. It will tune dipoles, verticals, Yagis or virtually any coax-fed antenna. It will match an
amazing range of antennas and impedances, far greater than some other tuners you may have
considered. The AT-7000 uses little power while tuning, and with its latching relays, uses
essentially no power in standby.
The AT-7000 represents a quantum leap in features and performance. Enhanced tuning
algorithms provide much faster, precise and consistent tuning.
LDG pioneered the automatic, wide-range switched-L tuner in 1995. From its laboratories near
the nation’s capitol, LDG continues to define the state of the art in this field with innovative
automatic tuners and related products for every amateur need.
Jumpstart, or “Real Hams Don’t Read Manuals!”
Ok, but at least read this one section before you transmit:
1. Connect the HF antenna jack on your transceiver to the "TX" jack on your AT-7000
tuner using the provided jumper cable.
2. Connect your 50 Ohm antenna coax lead to the "Ant" jack on the back of your AT-
7000.
3. Connect the tuner’s RADIO port to your IC-7000 transceiver’s Tuner port using the
provided cable.
4. Power up your transceiver and select the desired operating frequency and mode.
5. Press and hold the TUNER/CALL button on the radio for one second, then release.
6. Wait for the tuning cycle to end and for the TUNE icon to appear on the radio’s
display.
7. You’re now ready to operate.
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