Connecting The Z-100A Tuner - LDG Z-100A Manual

The Z-100A tuner is designed for indoor operation only; it is not weather proof / water
resistant. If you use it outdoors (Field Day, for example), ensure it is properly protected
from rain, dust, etc.
The Z-100A is designed for use with coax-fed antennas. If operating with long-wire or
ladder-line-fed antennas, an external balun is required. The LDG RBA-4:1 or RBA-1:1 is ideal,
depending on the antenna and transmission line used.
1. Make sure your radio is turned off.
2. Connect the HF/50 MHz antenna jack on the transceiver to the "RADIO" jack on
the Z-100A, using a 50Ω jumper.
3. Connect a 50Ω coax antenna feedline to the "ANT" jack on the Z-100A.
4. Connect one end of the supplied radio interface cable to the tuner port on the
back of your radio.
5. Connect the other end of the supplied radio interface cable to the "INTERFACE"
jack on the rear of the Z-100A.
6. Turn on the radio.
7. Select the desired operating frequency and mode.
8. Key and hold the radio in CW or FM mode, then press and release the TUNE
button on the front of the tuner.
9. The transceiver will transmit with a minimal amount of power as the Z-100A
begins. You may hear the relays chatter as the tuner searches for a match. At the
end of the tuning cycle, the SWR has been lowered.
10. You are now ready to operate!

Connecting the Z-100A tuner

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