APRS-11

SELECTING A POSITION COMMENT

Enter Menu mode and access Menu 607.
The APRS data which you transmit always includes one of the
15 predetermined position comments. Select an appropriate
comment depending on your situation.
The selectable comments are listed below:
[Off Duty] [Enroute] [In Service] [Returning] [Committed] [Special]
[PRIORITY] [CUSTOM 0 ~ CUSTOM 6] [EMERGENCY!]
• If you select “Emergency!”, a confi rmation message appears. Press
the Tuning control again.
ATTENTION: When it is unnecessary, never “EMERGENCY!”. When an
emergency signal is received using APRS, the Emergency Alarm on all
stations will sound.

STORING STATUS TEXT

Enter Menu mode and access Menu 608.

■ Text <TEXT>

Status text is another comment to transmit with position
data. Unlike a position comment, you can make any desired
comment using a maximum of 42 alphanumeric characters.
This transceiver has 5 memory channels for preprogramming.
1 Select a status text number.
• Press [USE] to mark the currently used status text with [ ].
2 Enter your status text.

■ Text Transmit Frequency <TX RATE>

Select the frequency on which to transmit the status text
when the APRS beacon is transmitted. You can select [OFF],
or [1/1] ~ [1/8] (APRS only).
• 1/X means the status text will be transmitted X number of times.

QSY FUNCTION

The QSY function uses AFRS (Automatic Frequency Reporting
System) to report a frequency on which voice communications
can be established. A station using the QSY function embeds
the frequency information in a position beacon transmission.
A receiving station of this information can change frequency,
or QSY, over to the reported voice frequency to begin voice
communication by the select of [TUNE].
Transmitting QSY Information
A properly confi gured functioning TM-D710G QSY station can
automatically embed the voice frequency from the non-data band
to the beginning of status text. This is the mechanism used for
automatically transmitting the frequency information.
The format of the transmitted frequency is FFF.FFF MHz.
So, for example, if at the time of a beacon transmission, the
non-data band has a frequency of 446.100 MHz selected, then
the frequency of “446.100MHz” gets embedded to the beginning
of the status text. If you confi gure in any of Statuses 1 through 4
the frequency of “446.100MHz” at the beginning of the status text
messages, then this fi xed frequency will be transmitted as QSY
information along with the beacon transmission. In addition to
frequencies, there are fi elds where you can send other settings
such as Wide/Narrow, Tone/CTCSS/DCS, Shift (+/-), and Offset
frequency simply by -leaving one space between each value.
Therefore, other information besides just a frequency can be
sent.
QSY Information Format:
(Insert one space after the frequency before entering Wide/
Narrow, Tone/CTCSS/DCS and Shift/Offset.)
• “T079”: An upper case “T” indicates Wide. Tone frequency of 79.7
Hz. (Encoding)
• “t079”: A lower case “t” indicates Narrow. Tone frequency of 79.7 Hz.
(Encoding)
• “tOFF”: A lower case “t” indicates Narrow. Tone = OFF (Without any
tone Encoding or Decoding.)
• “C079”: An upper case “C” indicates Wide. CTCSS frequency of 79.7
Hz. (Encoding/ Decoding)
• “c079”: A lower case “c” indicates Narrow. CTCSS frequency of 79.7
Hz. (Encoding/ Decoding)
• “D023”: An upper case “D” indicates Wide. DCS code of 023.
(Encoding/ Decoding)
• “d023”: A lower case “d” indicates Narrow. DCS code of 023.
(Encoding/ Decoding)
• “+” : Plus Shift (A default offset frequency is applied.)
• “–” : Minus Shift (A default offset frequency is applied.)
• “+500” : Plus Shift, 5 MHz Offset
• “–060”: Minus Shift, 600 kHz Offset
The value of the Offset shall be a 3-digit number. (x 10 kHz/ 50
kHz step)
Refer to the website for QSY Information Format:
http://aprs.org/info/freqspec.txt (as of October 2013)