APRS is a registered trademark Bob Bruninga, WB4APR Copyright © 2004 – Anthony Campbell W5ADC All...

1APRS is a registered trademark Bob Bruninga, WB4APR

Copyright © 2004 – Anthony Campbell W5ADCAll Rights Reserved

Using the KenwoodTM-D700A and TH-D7A

Tony Campbell W5ADC



Tony – W5ADC• Been licensed since 1978.

• Have been active in satellite communications.

• Became active with APRS over 2 years.

• Active SSID

– W5ADC-10 Home Weather Station

– W5ADC-14 Mobile

• You may also see

– W5ADC-15 Portable TM-D700A

– W5ADC-7 TH-D7A

– W5ADC-8 TinyTrak 3



Kenwood TH-D7A(G)

• Nice HT with APRS features

• Dual band 114/440 MHz 5 Watts

• Basic TNC

• On screen text monitoring

• PC programmable

• Just add a GPS and go



Basic Interconnection DiagramPurpose Built Radios

GPS Radio

NMEA Data In/Out



TH-D7(G) OperationMain Screen

TNC Beacon

Data

Band

Frequency or Channel Name



TH-D7A(G)Basic Functions

List Stations

Beacon

PositionTNC

Message

OKESC



TH-D7A(G) OperationStation List

Call and SSID

Entered by Pressing [LIST]



TH-D7A(G) OperationFixed Station

Press [OK]

To Step Between

Screens



TH-D7A(G) OperationMobile Station

Press [OK]

To Step Between

Screens



TH-D7A(G) OperationWeather Station

Press [OK]

To Step Between

Screens



TH-D7A(G) OperationPosition



Connecting the GPS Receiver

Shield/GND

Red/Data from GPS

White/Data to GPS DB9 Plug with PinsWhite/Pin 3

Red/Pin 2

Shield/Pin 5

This cable should work with any GPS receiver

That is designed to connect to a 9 pin serial port.



Setup of GPS Receiver

• NMEA/NMEA (NMEA In/Out)

• NMEA 0183 2.0

• 4800 baud

• WGS84



TH-D7A(G) ConfigurationAPRS

• Set UTC Offset 2-O (TIME ZONE)

– As Required

• Select Data Band 1-4-1 (DATA BAND)

– A

• Packet Transfer Rate 2-M (PACKET SPEED)

– 1200 bps



TH-D7A(G) ConfigurationAPRS (Con’t)

• Program Call Sign 2-1 (MY CALLSIGN)

– W5ADC-14

• Select Station Icon 2-8 (STATION ICON)

– Select as Desired

• Select Position Comment 2-6 (POSITION COMMENT)

– Off Duty/Returning/Priority/…/In Service

• Enter Status Text 2-9 (STATUS TEXT)

– Up to 5 user selectable Messages

• Packet Path 2-B (PACKET PATH)

– RELAY,WIDE2-2 or RELAY,WIDE



TH-D7A(G) ConfigurationAPRS (Con’t)

• Packet Transmit Method 2-C (PACKET TX)

– AUTO

• Transmit Interval 2-D (TX INTERVAL)

– No more often than 3 minutes

• Status Text Transmit Rate 2-A (STATUS TX RATE)

– 1/3 Can range from OFF to 1/1 to 1/8

• Reception Limit 2-7 (POSITION LIMIT)

– OFF Can range from 10 to 2500

• Position Ambiguity 2-5 (POS AMBIGUITY)

– OFF Can be used to limit the accuracy of the position data transmitted



TH-D7A(G) ConfigurationThe Easy Way

• Use the configuration program available from Kenwood for free.

• Go to www.kenwood.net and get MC7G110.exe

• All you need is a computer with a serial port and a PG-4W cable or build your own.

Shield/GND

Red/Data from PC

White/Data to PC DB9 Plug with SocketsWhite/Pin 3

Red/Pin 2

Shield/Pin 5



Sample Screens



Kenwood TM-D700A

• Coolest APRS radio on the market

• Dual band 114/440 MHz 50/35 Watts

• Decent 1200/9600 bps TNC

• Built-in Digipeater

• On screen text monitoring

• PC programmable

• Just add a GPS and go



TM-D700A OperationMain Screen

Data Band

GPS BlinkingBeacon

Correct Frequency

TNC APRS Mode



TM-D700A OperationAPRS Menu

Entered by Pressing and Holding “F” Button for 1 second

GPS

Position Screen

Message ScreenBeacon

Packet MonitorStation List



TM-D700A OperationStation List

Call and SSID Time of Last Packet Station Type/Situation

Press to send message View Details



TM-D700A OperationFixed Station

Status Text

Call and SSID

Icon



TM-D700A OperationMobile Station

Call and SSID

Icon Direction Speed Altitude

Location Distance and Heading from me



TM-D700A OperationWeather Station

Call and SSID

Icon

Wind Direction, Speed, Temperature and Rain in Past Hour

Station Location Distance and Heading



TM-D700A OperationPacket Monitor



TM-D700A OperationMain Message Screen



TM-D700A OperationMessage List



TM-D700A OperationMessage Detail



TM-D700A OperationPosition

SpeedTime

Heading Location Altitude and Grid Square



TM-D700A ConfigurationAPRS

• Set Internal Clock 1-6-3 (TIME)

– As Required

• Set Date 1-6-4 (DATE)

– As Required

• Set UTC Offset 1-6-5 (TIME ZONE)

– As Required

• Select Data Band 3-I (DATA BAND)

– A

• Packet Transfer Rate 3-J (PACKET SPEED)

– 1200 bps



TM-D700A ConfigurationAPRS (Con’t)

• Program Call Sign 3-1 (MY CALLSIGN)

– W5ADC-14

• Select Station Icon 3-8 (STATION ICON)

– Select as Desired

• Select Position Comment 3-6 (POSITION COMMENT)

– Off Duty/Returning/Priority/…/In Service

• Enter Status Text 3-9 (STATUS TEXT)

– Up to 5 user selectable Messages

• Packet Path 3-B (PACKET PATH)

– RELAY,WIDE2-2 or RELAY,WIDE



TM-D700A ConfigurationAPRS (Con’t)

• Packet Transmit Method 3-C (PACKET TX)

– AUTO

• Transmit Interval 3-D (TX INTERVAL)

– No more often than 3 minutes

• Status Text Transmit Rate 3-A (STATUS TX RATE)

– 1/3 Can range from OFF to 1/1 to 1/8

• Reception Limit 3-7 (POSITION LIMIT)

– OFF Can range from 10 to 2500

• Position Ambiguity 3-5 (POS AMBIGUITY)

– OFF Can be used to limit the accuracy of the position data transmitted



TM-D700A ConfigurationThe Easy Way

• Use the configuration program available from Kenwood for free.

• Go to www.kenwood.net and get MCP_D700.exe

• All you need is a computer with a serial port and a cable pinned 1-1, 2-2…9-9.



Sample Screens



Thank You

And Good Tracking

APRS is a registered trademark Bob Bruninga, WB4APR Copyright © 2004 – Anthony Campbell W5ADC All...

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