PAGE 7
INSTALLATION
The AT-100Pro is intended for indoor use only; it is not water-resistant. If you use it outdoors, (Club
picnic outdoor barbecue, for example) you must protect it from rain. The AT-100Pro is designed for use
with coax-fed antennas. If use with longwires or ladder-line-fed antennas is desired, an external balun is
required. The LDG RBA-4:1 or RBA-1:1 is ideal, depending on the antenna and transmission line used.
Place the AT-100Pro in a convenient location near the transceiver. Always turn your radio off before
plugging or unplugging anything.
The radio may be damaged if cables are connected or disconnected
while the power is on.
Connect the HF antenna jack on the transceiver to the
TX
jack on the back of the AT-100Plus, using
the supplied coax jumper cable, or a similar 50 ohm coax cable rated 125 watts or higher.
Connect a 50-ohm antenna feedline coax to the
ANT 1
jack on the back of the AT-100Plus, and
optionally connect a second antenna feedline to the
ANT 2
jack.
The AT-100Pro is designed to interface directly with many popular ICOM and Yaesu transceivers,
enabling one button tuning. In the case of ICOM radios, the supplied interface cable also powers the
tuner.
For ICOM radios supporting the AH-3 or AH-4 external tuner, connect the 4-pin Molex connector of
the supplied ICOM interface cable to the radio’s Tuner port. Then connect the 1/8” stereo plug on the
other end of the ICOM interface cable to the jack marked
Radio
on the rear of the AT-100Pro. Connect
the coaxial DC power plug of the ICOM interface cable to the
12 VDC
Power
jack.
For Yaesu FT-857 and FT-897, use the included Y-ACC cable and plug the red end marked
Radio
into the transceiver’s
ACC
port. Plug the black end of the Y-ACC cable into the jack marked
Radio
on
the rear of the AT-100Pro.
Unless the AT-100Pro is being powered by the ICOM radio interface cable as above, you’ll also need
to plug in the supplied DC coaxial power cable. This cable has a 2.5x5.5mm coaxial plug on the end. Plug
the coaxial plug into the
12 VDC Power
jack on the rear of the AT-100Pro, and connect the other end to a
DC power source between 11 and 16 volts DC, capable of supplying up to 500 mA.
Grounding the AT-100Pro tuner will enhance its performance and safety. LDG recommends that you
connect your tuner to a suitable ground. A common ground rod connected to buried radials is ideal, but a
single ground rod, a cold water pipe, or the screw that holds the cover on an AC outlet can provide a
serviceable ground. LDG strongly recommends the use of a properly installed, high quality lightning
arrestor on all antenna cables.
Содержание AT-100Pro
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