Kenwood RC-D710 - Manual (Page 41)

APRS-1
APRS ®
APRS DATA COMMUNICATION (APRS BEACON)
◆ This function uses the APRS format for data communications including your station position, messages, etc., when connected to a
GPS receiver.
◆ Even with the GPS receiver not connected, similar communications can be performed by entering the position data.
◆ When data is received from another station, the direction of the received station (from your station’s perspective), their distance,
and their grid square locator is displayed. Any comments sent by the other station are also displayed.
◆ Meteorological data obtained from a connected Weather Station can be transmitted.
◆ APRS (Automatic Packet Reporting System) is a worldwide system introduced by Bob Bruninga, WB4APR .
< APRS ® is a software program and registered trademark of Bob Bruninga, WB4APR.>
Official APRS Website: http://www.aprs.org
NAVITRA DATA COMMUNICATION (NAVITRA BEACON)
◆ The Navitra system was introduced by Kenwood in the 1990’s, for use within Japan.
CALLSIGN AND BEACON TYPE SETTINGS
◆ When an APRS/NAVITRA beacon is created, set the callsign and beacon type (APRS/NAVITRA) (Menu No. 600).
◆ SSID (Secondary Station IDentifiers) can be added to the end of your callsign (for example, W6DJY will become
W6DJY– 14). SSIDs can range from “None, – 1” to “– 15”, so that each callsign can have up to 16 settings.
Refer to the website for SSID: http://aprs.org/aprs11/SSIDs.txt (as of April 2011)
GPS RECEIVER SETTINGS
◆ When the GPS receiver is not connected to the RC-D710 (fixed station), set the GPS receiver Menu No. 602 (GPS PORT – INPUT)
to [OFF] (default value). If you do not connect the GPS receiver when you set up [GPS], your station position location will not be
correct, and the distance and direction of other stations will not be displayed. Therefore, you should set your position data using
Menu No. 605 (MY POSITION).
DIGIPEAT
◆ The term digipeat means that the packet data is relayed. When a digipeater (relay station) receives a packet, it saves it to memory.
When the reception ends, the data is re-transmitted. Using digipeat, it is possible to send beacons long distances.
◆ In order to perform a digipeat, you must set up a packet path (Menu No. 612). For the packet path, you can specify a direct callsign
or you can use “WIDE1-1” or “WIDE1-1, WIDE2-1”, specifying a common alias and hops number. Set the transceiver’s packet path
according to the digipeater settings.
◆ Digipeat is very useful in reaching other stations when you have a weak signal. However, you need to set up the total hops numbers
and beacon transmissions moderately to prevent channel congestion.
WIDE type
WIDE type:
This degipeater can send the packet over a wide area.
Fill-in type:
Regional degipeaters are also called “RELAY type” relays.
These degipeaters are used for mobile stations when a
signal cannot reach a WIDE-type degipeater.
Fill-in type
Fill-in type WIDE type