Kenwood TH-D75 User Manual - Page 75

SETTING BEACON INFORMATION, Decay Algorithm, Proportional Pathing, Speed Information

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Decay Algorithm This function continuously extends the packet transmission interval in the case that there is no change of position information. 1 Access Menu No. 512. When jointly using a Decay Algorithm, if the speed is 1 knot or slower, a Decay Algorithm pattern is used for transmitting, but if the speed is 3 knots or faster, it changes to Proportional Pathing. SETTING BEACON INFORMATION 2 Select [On] or [Off]. • When the position data does not change, the data is transmitted based on a Decay Algorithm (ex. Interval Time = 1 minute: 2 minutes, 4 minutes, 8 minutes, 16 minutes, 32 minutes, 32 minutes, 32 minutes, etc.) • When My station position data changes, the data is transmitted using an interval time based on the set Initial Interval. • When the set time elapses and transmission is performed but a busy signal is present, the transceiver does not transmit. When there is no longer a busy signal, the transceiver attempts to transmit. Note: ¡ While transmitting by pressing the [PTT] switch, beacon transmission is reserved. ¡ If My Callsign is not set, the APRS packet will not be transmitted. ¡ Independent of this interval, the transmission of the message is in 1 minute intervals. Speed Information Select whether or not to transmit speed information when using APRS data communications. 1 Access Menu No. 514. 2 Select [On] or [Off]. Altitude Information Select whether or not to transmit altitude information when using APRS data communications. 1 Access Menu No. 515. Proportional Pathing This function automatically changes the transmit packet path with the elapsed time. 1 Access Menu No. 513. 2 Select [On] or [Off]. • When the beacon type is [NAVITRA], this information will not appear on the display. 2 Select [On] or [Off]. Operation example for when = ON Transmission interval is 2 minutes. (When the = ON, the decay transmission interval takes precedence.) The packet path changes with each transmission as shown below (when the packet path is set as WIDE1-1, WIDE2-1). 2 minutes: DIRECT 4 minutes: WIDE1-1 (1 Hop) 6 minutes: DIRECT 8 minutes: WIDE1-1, WIDE2-1 (2 Hops) 10 minutes: DIRECT 12 minutes: WIDE1-1 (1 Hop) 14 minutes: DIRECT 16 minutes: WIDE1-1, WIDE2-1 (2 Hops) This is repeated. 14-14

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14-14
Decay Algorithm
This function continuously extends the packet transmission
interval in the case that there is no change of position
information.
1
Access Menu No. 512.
2
Select [On] or [Off].
• When the position data does not change, the data is
transmitted based on a Decay Algorithm (ex. Interval
Time = 1 minute: 2 minutes, 4 minutes, 8 minutes, 16
minutes, 32 minutes, 32 minutes, 32 minutes, etc.)
• When My station position data changes, the data is
transmitted using an interval time based on the set Initial
Interval.
• When the set time elapses and transmission is
performed but a busy signal is present, the transceiver
does not transmit. When there is no longer a busy signal,
the transceiver attempts to transmit.
Note:
¡
While transmitting by pressing the
[PTT]
switch, beacon
transmission is reserved.
¡
If My Callsign is not set, the APRS packet will not be transmitted.
¡
Independent of this interval, the transmission of the message is
in 1 minute intervals.
Proportional Pathing
This function automatically changes the transmit packet path
with the elapsed time.
1
Access Menu No. 513.
2
Select [On] or [Off].
Operation example for when <Proportional Pathing> = ON
Transmission interval is 2 minutes. (When the <Decay
Algorithm> = ON, the decay transmission interval takes
precedence.)
The packet path changes with each transmission as shown
below (when the packet path is set as WIDE1-1, WIDE2-1).
2 minutes:
DIRECT
4 minutes:
WIDE1-1 (1 Hop)
6 minutes:
DIRECT
8 minutes:
WIDE1-1, WIDE2-1 (2 Hops)
10 minutes:
DIRECT
12 minutes:
WIDE1-1 (1 Hop)
14 minutes:
DIRECT
16 minutes:
WIDE1-1, WIDE2-1 (2 Hops)
This is repeated.
When jointly using a Decay Algorithm, if the speed is
1 knot or slower, a Decay Algorithm pattern is used for
transmitting, but if the speed is 3 knots or faster, it changes
to Proportional Pathing.
SETTING BEACON INFORMATION
Speed Information
Select whether or not to transmit speed information when
using APRS data communications.
1
Access Menu No. 514.
2
Select [On] or [Off].
Altitude Information
Select whether or not to transmit altitude information when
using APRS data communications.
1
Access Menu No. 515.
2
Select [On] or [Off].
•
When the beacon type is [NAVITRA], this information will
not appear on the display.