Operation example, Qsy function, Transmitting qsy information – Kenwood TM-D710GE User Manual

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APRS in Action 05

Operation Example

Here are the TM-D710 default settings for position beacon transmissions using the SmartBeaconing configuration as

shown below.

Table 5-7 SmartBeaconing Configuration Values

Menu Item

Configured Value

LOW SPEED

5

HIGH SPEED

70

SLOW RATE

30 minutes

FAST RATE

120 seconds

TURN ANGLE

28 degrees

TURN SLOPE

26 (x10 deg/speed)

TURN TIME

30 seconds

Note:

◆ If SmartBeaconing does not result in appropriate beacon transmissions, then you must re-configure individual parameters so

as to more closely match driving conditions.

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 press of [TUNE] on the TM‑D710.

Transmitting QSY Information

A properly configured functioning TM-D710 QSY station can automatically embed the voice frequency from the non-data

band to the beginning of status text. In Status 5, “[Freq MHz]” is entered. 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 configure in any of

Statuses 1 through 4 the frequency of “446.100MHz” at the beginning of the status text messages, then this fixed

frequency will be transmitted as QSY information along with the beacon transmission. In addition to frequencies, there

are fields 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.)

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