Arts: Auto Range Transponder System; Arts Modes - Yaesu FT-7100M Operating Manual

ARTS
: AUTO RANGE TRANSPONDER SYSTEM
This system uses DCS signaling to inform you when you and another ARTS-equipped
station are within communications range. Both stations must first select DCS operation
using the same DCS code.
Whenever you press the PTT switch, or every 30 seconds after ARTS is activated, your
radio will transmit a (subaudible) DCS signal. If the other radio is in range, the beeper (if
enabled) will sound and "ARTS IN" will appear on the display. Whether you talk or not, the
radios will continue to poll each other every 30 seconds while ARTS is activated.
You can also have your radio transmit your callsign via CW every ten minutes, to comply
with identification requirements.
If either station moves out range for more than one minute (two polls), your radio will sense
that no signal has been received. A beep will sound, and the display will change to "ARTS
OUT" (out of range). If you move back into range, your radio will again beep, and the display
will change back "ARTS IN ".
During ARTS operation, the microprocessor makes it impossible to change the operating
frequency or other settings; you must first terminate ARTS to resume normal operation. This
is a safety feature to prevent accidental loss of contact due to channel change, etc.
Here is how to activate ARTS:
1. Press and hold in the [ BAND ] key for 1/2 second to activate the "Menu" mode.
2. Rotate the Main Dial knob to select Menu # 3 (ARTS).
3. Press the [ BAND ] key momentarily to enable changing of this Menu item.
4. Rotate the Main Dial knob to select the desired ARTS operating mode: "R A N G E,"
"ALL," or "OFF." The operating descriptions assume that both radios are set to "ALL."
5. Press and hold in the [ BAND ] key for 1/2 second to save the new setting and exit. The
display will now show "ARTS OUT." After two pollings (one minute), if a response is
not detected, "A R T S O U T" will appear continuously; otherwise "A R T S I N " will be
displayed as long as both stations remain in range.
6. To cancel ARTS operation, select "OFF " in step 4 above.
RANGE : A high tone beep will sound when the transceiver first detects that you are
within range, and a low beep will sound when the other station goes out of
range.
ALL:
A high tone beep will sound every time a polling transmission is received
from the other station, and a low beep will sound once when the other
station goes out of range.
OFF:
ARTS operation is disabled.
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ARTS Modes

FT-7100M Operating Manual