110
Active-Tuning Antenna System (ATAS-120A)
ATAS-120A is a multi-band auto-tuning antenna that can be used in the amateur bands from the HF band
to the UHF band (7/14/21/28(29) /50/144/430). Using the active tuning mechanism, tuning can be carried
out automatically by the control signal from FTDX10. Please refer to the ATAS-120A Operating Manual for
the assembly and installation of ATAS-120A.
Depending on the installation and location of some antennas, it may not be possible to tune to a low SWR.
•
Tuning Operation
The tuning of the ATAS-120A is carried out auto-
matically.
1. Press the [TUNE] key to begin automatic tun-
ing.
● The transmitter will be engaged, and the
“ATAS” icon will blink while tuning is in prog-
ress.
● When the optimum tuning point has been
reached, the transceiver will return to re-
ceive, and the “ATAS” icon will again glow
steadily (instead of blinking).
•
The carrier signal transmits continuously while
tuning is in progress. Please monitor the operat-
ing frequency before beginning the tuning pro-
cess. Be sure you are not interfering with others
who may already be using the frequency.
•
Check the grounding and installation conditions
if “HI-SWR” icon blinks (tuning cannot be carried
out).
•
Manual Tuning
The tuning of the ATAS-120A may be carried out
manually.
Press the PTT switch on the microphone to trans-
mit and then press the UP/DWN button on the
microphone to adjust the antenna until the meter
indicates the minimum SWR.
The meter on the screen will automatically
change to the SWR meter.
• Interconnections to FTDX10
Connect “ATAS-120A” to the ANT terminal of the
FTDX10 with a coaxial cable as shown in the dia-
gram below.
• Turn off the external power supply switch and
the FTDX10 power supply switch first before
connecting the cables.
•
Do not plug or unplug the connector of the
antenna cable with wet hands. Do not plug or
unplug the connector during transmission as
well. This may result in electric shock, injury,
etc.
•
Grounding is required for the ATAS-120A.
Make sure the antenna base is in contact with
the car body to ensure proper grounding.
AT
AS-120A
Commercial
Antenna base
•
Setup the transceiver
Before tuning can begin, the FTDX10 must be
configured to recognize that the ATAS-120A is
being used.
Configuration is done using the Setting Menu
Mode:
1. Press the [FUNC] knob.
2.
Select [OPERATION SETTING] → [GENER
-
AL] → [TUNER SELECT].
3. Rotate the [FUNC] knob, or touch “<” or “>”
on either side of the value to select “ATAS”.
4. Press the [FUNC] knob to save the new set-
ting.
5. Touch [BACK] several times to return to nor-
mal operation.
The “ATAS” icon will appear in the display.
Summary of Contents for FTDX10
Page 1: ...Operation Manual...