INSTRUCTION MANUAL

ENHANCED FEATURES
144/440 MHz FM DUAL BANDER

TH-D7A(G)

STA ST CON
PACKET96BCON ACKET96 BCONDUP 9

KENWOOD CORPORATION

B62-1359-00 (K) 01 00

CONTENTS

CHAPTER AUTOMATIC PACKET/ POSITION REPORTING SYSTEM OPERATION FLOW.. 2 CONNECTING WITH A GPS RECEIVER. 3 SETTING UTC OFFSET.. 3 SELECTING DATA BAND.. 3 SELECTING PACKET TRANSFER RATE.. 3 RECEIVING APRS DATA.. 4 ACCESSING RECEIVED APRS DATA.. 5 PROGRAMMING A CALL SIGN.. 7 SELECTING YOUR STATION ICON. 8 PROGRAMMING POSITION DATA.. 9 SELECTING A POSITION COMMENT.. 10 STORING STATUS TEXT.. 11 PROGRAMMING A GROUP CODE.. 12 PROGRAMMING A PACKET PATH.. 13 SELECTING PACKET TRANSMIT METHOD.. 15 SELECTING PACKET TRANSMIT INTERVAL. 16 SELECTING PACKET TRANSMIT DELAY. 16 SELECTING STATUS TEXT TRANSMIT RATE. 16 RESTRICTING RECEPTION OF APRS DATA. 16 PROGRAMMING POSITION AMBIGUITY.. 17 SELECTING A DISPLAY AREA. 17
CHAPTER 2 APRS MESSAGE OPERATION FLOW.. 18 RECEIVING A MESSAGE.. 19 ACCESSING RECEIVED APRS MESSAGES. 20 ENTERING A MESSAGE... 21 TRANSMITTING A MESSAGE.. 22 AUTO ANSWER REPLY.. 22 PROGRAMMING A GROUP CODE.. 23 CHAPTER 3 MENU REVISIONS CHAPTER 4 SUMMARY OF ENHANCEMENT BAND A & B... 26 KEYPAD DIRECT ENTRY.. 26 TRANSMITTING A 1750 Hz TONE. 26 KEY BEEP ON/OFF.. 26 ADJUSTING VOLUME BALANCE.. 27 SELECTING DATA BAND.. 27 DX PACKETCLUSTERS MONITOR. 27 DCD SENSE... 28
This instruction manual describes only the functions improved or newly designed for the TH-D7A(G) model. For the functions not described in this manual, see the other instruction manual (original).
AUTOMATIC PACKET/ POSITION REPORTING SYSTEM
The Automatic Packet/ Position Reporting System (APRS) is a software program and registered trademark of Bob Bruninga, WB4APR. He has made packet communications much more exciting than before. This program allows you to track mobile stations on a map which you recall on a computer screen. Imagine seeing one mobile station moving on the map which can be scaled from.5 to 2000 miles. You also may be tracked on the computer screen of another station. Stations to be tracked must transmit beacons at certain intervals. To track other stations, you usually need a computer running the APRS, a transceiver, and a TNC. To have them track you, you also need a GPS receiver. It receives signals from the satellites to inform you of your current geographical position. GPS stands for Global Positioning System. The APRS interprets the National Marine Electronics Association (NMEA) data strings coming from the GPS receiver. For further information, consult Internet Web pages relating to the APRS. You may use one of the Internet search engines to find correct URLs. This transceiver includes a TNC and a program for dealing with data formats supported by the APRS. That is, you need no other equipment to transmit, receive, or display APRS packets. You do not need even a GPS receiver if you manually enter position data to transmit. For hams who want to fully enjoy APRS operations, this transceiver has connection ports with a personal computer and a GPS receiver; this manual, however, does not describe APRS operations which require a personal computer. Using this transceiver, you can transmit a station icon, position data, position comment, and status text. With a GPS receiver, you can also transmit moving speed, moving direction, and altitude data. From any type of station you will receive information listed below: Station icon Position comment Distance from station

Position data/ Grid square locator
Status text Direction of station
Depending on the types of stations, you will also receive the following information: Mobile station Fixed station Fixed station
(using compressed APRS data format)
Moving direction/ Moving speed/ Altitude Transmit power/ Height of antenna/ Antenna gain/ Antenna directivity Transmit range Wind direction/ Wind speed/ Temperature/ Rainfall in last hour 1

Weather station

OPERATION FLOW
The following flow chart includes only the steps to give APRS a quick try. q Access Menu 2M to select band A or B as the data band {page 3}. The default is band A. w Press [TNC] to enter APRS mode.

should appear.

u Access Menu 24 to program position data {page 9}. i Access Menu 26 to select from 15 position comments {page 10}. o If you want, access Menu 29 to enter status text using up to 20 alphanumeric characters {page 11}. !0 Access Menu 2C to select the operation method for transmitting APRS data {page 15}. !1 Press [BCON]. If you selected PTT in step !0, then press and release the PTT switch. See page 15. When using a personal computer, press [TNC] repeatedly in step q until PACKET appears. All further operations should be performed on your computer. For the cable connection with a personal computer, see page 53 on the other instruction manual (original). Menu Set-up allows you to change various default settings for APRS operations. See the appropriate sections in this chapter.
Note: x To distinguish your various stations or nodes, you can have up to 15 Secondary Station IDentifiers (SSIDs); ex. WD6BQD-1 to WD6BQD15. You always have to put a dash between your call sign and SSID number. x If you have blanked the data band by pressing [DUAL], you cannot select APRS mode in step q.
e On the data band select the same frequency as other stations in your group.
You may tune to the frequency of an appropriate digipeater (144.390 MHz in the U.S.A.) {page 13}.
Now you are ready to receive APRS data from other stations. Refer to RECEIVING APRS DATA {page 4}. To transmit your APRS data, proceed to step r. r Access Menu 21 to program your call sign (9 digits max.) {page 7}. t If you have connected a GPS receiver, access Menu 22 and select NMEA or NMEA96 {page 3}. The default is NOT USED. y Access Menu 28 to select your station icon {page 8}.
CONNECTING WITH A GPS RECEIVER
The GPS jack on this transceiver accepts a 2.5 mm (1/10") 3-conductor plug. If necessary, use the supplied cable to modify the cable end of your GPS receiver.

Meaning What is Included? New position comment nP {page 17} New position New status text nS {page 17} New status Duplicate position Position comment dP already received Duplicate status Status text already dS received Beyond position Data from a station >P limit outside the selected range {page 16} Query Request for sending Q ?1 information Packet that cannot be decoded ??

Indicator

The transceiver automatically transmits the appropriate information in approximately 2 minutes after receiving a request.
Note: The APRS programs for PCs have entry fields for a position comment and status text. The data entered to these two fields are transmitted as separate packets. This transceiver, however, includes both of a position comment and status text in one packet to transmit.
If a received packet does not include new (or proper) APRS data, the frequency display is not interrupted. An indicator such as dP appears depending on the types of data. See the table.
This transceiver beeps each time it receives any type of APRS packet. You may access Menu 2F (BEEP) to change this setting. The default is ALL. The selection in this menu is shared with APRS Message {page 19}. Selections OFF MINE ALL NEW ALL New Packet No beep Duplicate Packet No beep Invalid Packet No beep

96BCON 96 BCONDUP

This selection is valid only for APRS Message {page 19}.

Beep Beep

No beep Beep
ACCESSING RECEIVED APRS DATA
This transceiver is capable of receiving and storing APRS data from up to 40 stations in memory. You can select the desired station and access the desired information, by switching the display. 1 Press [LIST].
The display for selecting a station appears. The numbers beside the call signs indicate the order in which data is received. The data received last is assigned 1.
4 Press [OK] repeatedly until you can access the desired information.
The next page shows how displays will be switched. You may press [ESC] to restore the previous display.
5 Press [LIST] twice to restore the frequency display. You may want to delete all information of the desired station. Press [A/B] instead of [OK] in step 3 or 4. DELETE? appears. Press [OK] to delete the information. To delete the information of all stations, press [A/B] (1 s) in step 2. DELETE ALL? appears. Press [OK]. Then SURE? appears. Press [OK] again to delete the information. The types of information accessible in step 4 differ depending on the types of stations. For details, see the next page.
Note: x When data from the 41st station is received, the oldest data in memory is replaced by that data. x Each time new APRS data is received from the same station, the old data from that station (in memory) is replaced by new data. x When APRS data is received with a GPS receiver connected, included position data is sent to the receiver, using the NMEA-0183 $GPWPL format (or Magellan format). This data is registered in the Waypoint List of the receiver. Access Menu 23 (WAYPOINT) and select the number of characters to be input. You can select 6 to 9 digits for NMEA, 6 digits for Magellan, DGPS, or OFF (default). With NMEA 6 digits selected, the right 6 characters of the call sign is used as a name (ex. for KJ6HC-3, J6HC-3). Select DGPS to input differential position data to a DGPS-compatible receiver if it is connected.

2 Press [UP]/ [DWN] to select the desired station.

STA CON

3 Press [OK].
The display for accessing the desired information appears.
q Situation w Position comment
(TH-D7/ TM-D700/ Mic Encoder only) or call sign

(object only)

ESC UP

q status text

DWN ESC
q Grid square locator w Distance from the station (mile or km)
q Latitude/ longitude data N: North S: South W: West E: East Fixed station

Fixed station

Mobile station
q Transmit power q Transmit range w Height of antenna (mile or km) (elevation) 1 Using compressed : Feet M: Meter e Antenna gain APRS data format r Antenna directivity omni: Omnidirectional
q Altitude : Feet M: Meter w Moving direction e Moving speed m: Mile/hour k: km/hour
q Wind direction w Wind speed m: Mile/hour k: km/hour e Temperature F: F c: C r Amount of rainfall in the past hour (" or mm)
This transceiver is capable of displaying the following 19 icons as station IDs. When icon data other than these is received, the display will show an icon code such as /$ or \$.

PROGRAMMING A CALL SIGN

Program your call sign using a maximum of 9 alphanumeric characters; you may include SSID characters. Unless you program a call sign, you cannot transmit APRS data. 1 Press [MENU] to enter Menu mode. 2 Press [2], [1] to select 21 (MY CALLSIGN).
The display for entering characters appears; the first digit blinks. The default is NOCALL.
Some icons may appear with overlay characters as below if the received icon data includes them.
The following icons show the directions of stations relative to your position. For example, indicates the other station is located at the northeast relative to your position. 3 Press [UP]/ [DWN] to select a character, then press [OK].
You can enter 0 to 9, A to Z, and.
0.0 to 9999 miles (or km) are shown for distances from other stations. xxxxmi (or xxxxkm) is shown for distances over 9999 miles (or km). If you do not change the position data in Menu 24 from the default, ----mi (or ----km) is shown. On the TH-D7A(G), the default units for distance and temperature are mile and F. If necessary, access Menu 2H (mile/km) and/or Menu 2I (TEMPERATURE) to change the setting(s).

PROGRAMMING POSITION DATA
This transceiver has 3 memory channels for storing position data. Program latitude and longitude data for up to 3 locations from which you will often transmit APRS data.
Note: Grid squares were developed to shortly identify locations anywhere on the Earth. The world is first divided into 324 areas (AA ~ RR) called fields. Each field is then divided into 100 squares (00 ~ 99). Each square is further divided into 576 sub-squares (AA ~ XX). The world is eventually divided into 18, 662, 400 grids; each grid is expressed with 6 digits.

6 Press [OK].

The degree digits blink.
7 Press [UP]/ [DWN] to select data for degrees. 8 Press [OK].

The minute digits blink.

9 Repeat steps 7 and 8 to select data for minutes (down to one hundredth digit).
1 Press [MENU] to enter Menu mode.
You may press [POS] instead. Then you can skip step 2.
2 Press [2], [4] to select 24 (MY POSITION).

A channel number blinks.

10 Press [UP]/ [DWN] to switch between west longitude (default) and east longitude.

11 Press [OK].

Grid square locator The degree digits blink.
12 Press [UP]/ [DWN] to select data for degrees. 13 Press [OK]. 3 Press [UP]/ [DWN] to select from channels 1 to 3.
If you intend to use the current channel after exiting Menu mode, press [ ]. An asterisk appears at the left of the channel number. The minute digits blink.
14 Repeat steps 12 and 13 to select data for minutes (down to one hundredth digit).

4 Press [OK].

N (or S) blinks.
5 Press [UP]/ [DWN] to switch between north latitude (default) and south latitude. 9
15 As necessary, press [OK] then repeat steps 3 to 14 to store in up to 3 memory channels. 16 Press [MENU] to exit Menu mode. To select and set from up to 3 programmed channels, repeat steps 1 to 3. In step 3 press [UP]/ [DWN] to select the desired channel, then press [ ].
Note: x If you have selected NMEA or NMEA96 in Menu 22, pressing [POS] does not allow you to access the display for entering position data. The position data received via the GPS receiver most lately will be displayed. x If using a GPS receiver, you can also copy the measured data to the position entry display for Menu 24. Press [POS] to display the measured data, then press [OK]. A message which asks the channel number appears. Press [UP]/ [DWN] to select the channel number, then press [OK].
3 Press [UP]/ [DWN] to select the desired comment.
4 Press [OK] to complete the setting. 5 Press [MENU] to exit Menu mode. The selectable comments are listed below:
Off Duty (default) Returning Priority
En Route Committed Emergency!
In Service Special 1 Custom 0 ~ 6
SELECTING A POSITION COMMENT
The APRS data which you transmit always include one of the 15 predetermined position comments. Select an appropriate comment depending on your situation. 1 Press [MENU] to enter Menu mode. 2 Press [2], [6] to select 26 (POS COMMENT).

2 Press [UP]/ [DWN] to select Manual (default), PTT, or Auto.
4 To switch the function OFF, press [BCON] again. 1 Press [BCON] to switch the function ON.
BCON appears. Switching the function ON transmits the APRS data once. After that, APRS data is automatically transmitted at intervals of the period selected in Menu 2D (TX INTERVAL).
3 Press [OK] to complete the setting. 4 Press [MENU] to exit Menu mode.
Note: When using a GPS receiver, this transceiver transmits APRS data for the first time after any NMEA data is received.
2 To switch the function OFF, press [BCON] again.
SELECTING PACKET TRANSMIT INTERVAL
You can change the interval for automatically transmitting APRS data. Access Menu 2D (TX INTERVAL) and select 0.2, 0.5, 1, 2, 3, 5, 10, 20, or 30 minutes. The default is 5 minutes.
SELECTING STATUS TEXT TRANSMIT RATE
A long status text string can double the size and length of the APRS packet. Access Menu 2A and specify how frequently status text is included in APRS packets to be transmitted. The selectable range is 1/1 to 1/8 and OFF (default). If you select 1/3 for example, status text is included in your packets once every 3 times; accordingly stations who receive your packets will see your status text once every 3 times.
Note: x With AUTO in Menu 2C and Beacon ON, pressing [OK] to complete the setting causes the APRS data to be immediately transmitted. After that, APRS data is transmitted at intervals of the selected period. x While signals are present, APRS data is not transmitted after the interval. Approximately 2 seconds after signals drop, transmitting is executed.
RESTRICTING RECEPTION OF APRS DATA
If APRS is popular in your country, you may receive too many APRS packets for a short period. If this disturbs your APRS activities, specify a distance from your location. You will not receive APRS data from stations beyond this distance. Access Menu 27 (POS LIMIT) and select the range from 10 to 2500 in steps of 10, plus OFF (default). The unit is mile or kilometer depending on the selection in Menu 2H (mile/km) {page 7}.
SELECTING PACKET TRANSMIT DELAY
If necessary, adjust the time delay between keying up of the transmitter and the start of APRS data to the transmitter. Increase this delay, for example, when recipients miss the initial part of your packets and thus fail to decode the data. Access Menu 2P (TX DELAY) and select 100, 200, 300, 400, 500, 750, or 1000 msec. The default is 500 msec.
PROGRAMMING POSITION AMBIGUITY
There may be cases where you do not know or do not want to report your precise locations. For position data, you can select the number of digits not to be included in your packets. Access Menu 25 (POS AMBIGU) and select 1 to 4, or OFF (default). The table shows how the digits will be cleared on a recipient.

SELECTING A DISPLAY AREA

Each time new APRS data is received, the frequency display is interrupted. If this interruption annoys you too much, access Menu 2G (DISPLAY AREA) to select ONE LINE. The transceiver then will not exit the frequency display when receiving new data. It will use the bottom of the frequency display to show an indicator (nP or nS) and a call sign; nP and nS designate New Position and New Status respectively {page 4}. The default is ENTIRE DISP.

OFF 33 50.38

5. 118 1.

4 33. 118.

118 13.13.13.

APRS MESSAGE

The APRS supports a function for transmitting and receiving a message independent of position reports. You can transmit a message to a single station only or a bulletin to all other stations in your group. If you specify a station, the entered message is transmitted up to 5 times until an acknowledgment is returned. Each message which you transmit can consist of up to 45 alphanumeric characters. A maximum of 16 incoming or outgoing messages can be held in the message memory. r Access Menu 21 to program your call sign (9 digits max.) {page 7}. Now you are ready to receive a message from other stations. Refer to RECEIVING A MESSAGE {page 19}. To transmit a message, proceed to step t. t If necessary, access Menu 2B to program a packet path {page 13}. y Enter a message (or bulletin) using up to 45 alphanumeric characters {page 21}. Completing step y causes the transceiver to automatically transmit the message (or bulletin). When you send a message (not a bulletin), an acknowledgment should be returned; ack0 ~ 9 (or A ~ Z) appears.
The following steps should guide you to a good start of APRS Message operation. q Press [TNC] to switch ON the TNC.

appears.

w Access Menu 2M to select band A or B as the data band {page 3}. e On the data band select the same frequency as other stations in your group.

RECEIVING A MESSAGE

Each time a proper message is received, the frequency display is interrupted to show information as below:

When a duplicate message from the same station is received, an error beep sounds. In addition, dM (indicator) and a call sign appear on the display.
Indicator When a message to other stations is received, oM appears as an indicator. When a new message not addressed to only you is received with ONE LINE selected in Menu 2G {page 17}, nM appears as an indicator.
The display shows only the first 24 characters of the message. The transceiver restores the frequency display after approximately 10 seconds pass or when you press any key. appears and stays at the bottom left of the display until you use the List function {page 20}.
This transceiver beeps each time it receives any type of APRS packet. You may access Menu 2F (BEEP) to change this setting. The default is ALL. Selections OFF New Packet No beep Duplicate Packet No beep Invalid Packet No beep
The following indicators appear depending on types of received messages: # B# !

MINE ALL NEW ALL

Beeps only when receiving a message addressed to you.
Message addressed to you Message addressed to your group {page 23} Bulletin Report by the National Weather Service Acknowledgment to your message

G1~6 2

# designates an ASCII character used for indicating the sequence of message (or bulletin) packets; ex. 0 to 9. 1 to 6 designates a group identification number {page 23}.
Note: x When you receive a message that you transmitted, the frequency display is not interrupted. MY MESSAGE will appear at the bottom of the display. This could happen when one or more digipeaters {page 13} are used. x This transceiver allows you to receive a message also when the SSID does not match. However, it will not return an acknowledgment. x When a message addressed to you is received, the transceiver display and keypad are illuminated. If you do not press any key in approximately 5 seconds, the light goes off.
ACCESSING RECEIVED APRS MESSAGES
This transceiver is capable of storing a maximum of 16 messages in memory. You can access the desired massage by switching the display. 1 Press [MSG]. 2 Press [UP]/ [DWN] to select LIST.
Besides the call sign and message, the display will show the following types of information:

Message qw e

Time (minutes) elapsed after receiving. -- appears after 99 minutes have elapsed.
q Message Type # G1~B# 1 !
3 Press [OK]. 4 Press [UP]/ [DWN] to select the desired station.
Press [OK] to see the 25th and subsequent digits of the message. indicates the end of the message. Pressing [A/B] (1 s) deletes all the messages.
Message addressed to you Message addressed to your group Bulletin Report by the National Weather Service w RX or TX? Received message (or bulletin) Message (or bulletin) for transmitting e Status Remaining number of times for transmitting the message (or bulletin). Message for which an acknowledgment was returned Message (or bulletin) transmitted 5 times (For a message, an acknowledgment was not returned.)

< > 3

5 Press [ESC] twice to restore the frequency display. Pressing [MSG] in step 4 allows you to enter a message to be returned to the station. You can skip steps 1 to 6 in ENTERING A MESSAGE {page 21}.
Note: x The dedicated memory is used for storing both received messages and messages for transmitting. Receiving a new message when the memory is full causes the oldest message to be deleted. A message not yet transmitted 5 times may be unexpectedly deleted. If stays at the bottom left of the display when memory is full, a new message does not replace the oldest message. This transceiver returns a reject command and shows rM and a call sign at the bottom of the display. x A message already transmitted can be easily sent to the same station. Select the message in step 4 and press [MSG]. The call sign and message are copied to the recalled entry display {page 21}.
# designates an ASCII character used for indicating the sequence of message (or bulletin) packets; ex. 0 to 9. For outgoing messages or bulletins, only sequence numbers appear. 1 to 6 designates a group identification number {page 23}. These indicators appear for outgoing messages {page 22}.

ENTERING A MESSAGE

To transmit a message, first enter the call sign of the target station. To transmit a bulletin, enter BLN# instead; where # must be 0 to 9 or A to Z. When the length of your bulletin exceeds 45 digits, you may transmit more than one packet to send the entire bulletin. Use # to indicate the sequence of the bulletin portions. For example, enter BLN0 (or BLNA) to send the first packet, then BLN1 (or BLNB) to send the second packet. 1 Press [MSG]. 2 Press [UP]/ [DWN] to select INPUT.
6 Repeat steps 4 and 5 to enter up to 9 digits.
Pressing [OK] after selecting the 9th digit causes the cursor to move to the start of the next field.
To complete programming the call sign after entering less than 9 digits, press [OK] twice. Each press of [ESC] causes the cursor to move backward. Pressing [A/B] deletes the digit at which the cursor is blinking.
The display for entering a call sign appears; the first digit blinks.
7 Press [UP]/ [DWN], then [OK] to select the first digit of a message (or bulletin).
You may use the keypad. For example, each press of [TNC] switches entry as a, b, c, 2, A, B, then C. Press [ENT] to switch among the special ASCII characters.
8 Repeat step 7 to enter a message (or bulletin) with up to 45 digits.
To complete programming after entering less than 45 digits, press [OK] twice. Completing step 8 causes the transceiver to automatically transmit the message (or bulletin). If you send a message to a single station, an acknowledgment should be returned; ack 0 ~ 9 (or A ~ Z) appears.

Note: You may enter % as the initial character of the message. Some APRS systems are capable of announcing characters one by one when receiving a message which starts with %. Those systems include TMD700s with VS-3 units.
4 Press [UP]/ [DWN] to select a character.
You can enter 0 to 9, A to Z, and. You may use the keypad. For example, each press of [TNC] switches entry as A, B, C, then 2. Press [ENT] to enter.

TRANSMITTING A MESSAGE

When entry of a message (or bulletin) is completed, this transceiver automatically starts transmitting it at intervals of 1 minute. With a message entered, the transceiver repeats transmitting up to 5 times until an acknowledgment is returned. With a bulletin entered, the transceiver always repeats transmitting 5 times; an acknowledgment is not returned.

AUTO ANSWER REPLY

This transceiver is capable of automatically returning a programmed message when any message is received. 1 Access Menu 2J (AUTO REPLY), then press [OK].
2 Press [UP]/ [DWN] to select ON, then press [OK]. 3 Access Menu 2K (REPLY MSG), then press [OK].
The display for entering a message appears; the first digit blinks.
The table given on page 20 also shows indicators that appear for outgoing messages (or bulletins). You can also manually transmit all of those regardless of the 5-minute timer. 1 Press [MSG]. 2 Press [UP]/ [DWN] to select TRANSMIT.
4 Press [UP]/ [DWN] to select a character, then press [OK].
The cursor moves to the next digit. You can enter alphanumeric characters plus special ASCII characters. You may use the keypad. For example, each press of [TNC] switches entry as a, b, c, 2, A, B, then C. Press [ENT] to switch among the special ASCII characters.
3 Press [OK] to start transmitting.
After transmission, the frequency display is restored.
5 Repeat step 4 to enter a message with up to 45 digits.
To complete programming after entering less than 45 digits, press [OK] twice.
Use a message group code to exchange messages only among your group members. With one or more message group codes programmed, you will receive messages that include the same group code(s), besides messages addressed to you. You can program any desired code using up to 9 alphanumeric characters. You can also program up to 6 codes at the same time. If you program 3 message group codes, for example, you will receive all messages that include one of the 3 codes. 1 Access Menu 2L (MSG GROUP), then press [OK].
The display for entering one or more group codes appears; the first digit blinks.

Default Off Duty OFF OFF

RELAY,WIDE

Ref. page 12 4, 16 25
Manual 5 minutes APK002 All

Entire display

Mile F OFF

ALL,QST, CQ,KWD

A 1200 bps 500 msec.

SUMMARY OF ENHANCEMENT

Besides APRS functions, the TH-D7A(G) has several functions improved or newly added, as below. You may refer to the given pages to identify differences from a TH-D7A.
TRANSMITTING A 1750 Hz TONE
The TH-D7A(G) allows you to program [CALL] as a key for transmitting a 1750 Hz (burst) tone. Access Menu (CALL KEY) and select 1750 Hz. To transmit a 1750 Hz tone, press [CALL] without pressing the PTT switch. Release [CALL] to quit transmitting.

BAND A & B

Without switching ON the TNC, you will not see which indicates the current data band. This modification has been made because the TH-D7A(G) allows you to select a different band (A or B) as the data band between Packet and APRS operations. Refer to page 12 on the other instruction manual (original).

KEYPAD DIRECT ENTRY

When programming a memory channel name, PowerON message, status message, or APRS message, each press of [TNC], for example, switches entry as a, b, c, 2, A, B, then C. Refer to page 15 on the other instruction manual (original).
In order to cause the transceiver to remain in the transmit mode for 2 seconds after transmitting a 1750 Hz tone, access Menu 158 (TX HOLD,1750), then select ON.

KEY BEEP ON/OFF

If you are distracted by beeps generated when pressing a key on the keypad, switch OFF the Key Beep. The transceiver will beep only when it receives appropriate APRS or DX cluster data. Access Menu 153 (KEY BEEP) and select OFF. The default is ON. Refer to page 47 on the other instruction manual (original).

ADJUSTING VOLUME BALANCE

The TH-D7A(G) allows you to adjust volume balance even after blanking one band. Refer to page 48 on the other instruction manual (original).
DX PACKETCLUSTERS MONITOR
If the common transfer rate in your local PacketCluster network is 9600 bps, access Menu 2N (PACKET SPEED) and select 9600 bps. Refer to page 56 on the other instruction manual (original).

When accessing a PACSAT, access Menu 141 (PACKET BAND) and select A:TX B:RX (or A:RX B:TX). appears for the data transmit band and appears for the data receive band.
When new DX cluster data is received with ONE LINE selected in Menu 2G {page 17}, nD appears as an indicator.
PACSATs refer to satellites designed and launched for digital communications using the AX.25 protocol. The PACSATs usually receive (uplink) on VHF and transmit (downlink) on UHF. For further information, consult Internet Web pages relating to the PACSATs. You may use one of the Internet search engines to find those Web pages.
Note: If you have blanked the data band by pressing [DUAL], pressing [TNC] does not allow you to select Packet mode.

DCD SENSE

The TH-D7A(G) provides three methods for inhibiting the built-in TNC from transmitting. Access Menu 142 (DCD SENSE) and select one of the methods. The default is OR BAND. Refer to page 55 on the other instruction manual (original). The tables below conclude when the TNC is allowed to transmit, depending on the selection. Menu 142 OR BAND A or B Selected for Data Band Does not transmit when signals are present on the data band. Select this method when mainly performing data communications. Does not transmit when signals are present on band A or B. Select this method when performing voice communications on the main band, and data communications on the sub band. Transmits even when signals are present on the data band. Select this method only when the TNC often fails to transmit because of constant data reception.

Menu 142

A:TX B:RX or A:RX B:TX Selected for Data Band
Does not transmit when signals are present on the data TX band. Select this method when performing data communications via a PACSAT or ordinary cross-band data communications. Does not transmit when signals are present on the data RX or TX band. Select this method when performing ordinary cross-band data communications. Transmits even when signals are present on the data RX or TX band. Select this method when performing data communications via a PACSAT and only when necessary.

BOTH BANDS

IGNORE DCD
Note: When in APRS mode, the TNC functions exactly as described in the tables. The TNC, however, does not function as described in the shaded sections when in Packet mode or KISS mode; it functions as below. Avoid using the shaded configurations when in one of these modes. Packet mode: The TNC fails to receive an acknowledgment after transmitting. It then makes retries and unexpectedly disconnects the linkage. KISS mode: The TNC transmits when no signals are present on the data band or data RX band.

Garmin GPS to Kenwood TH-D7A & TM-D700A & TM-D710A Transceivers
Dr. John A. Allocca WB2LUA 10/11/07

Garmin Emap

Kenwood D7A D700A D710A

DB9 Female

RXD TXD RXD (white) TXD (red) GND 2.5 mm, 3 conductor plug
DB9 Male Pin 2 = RXD Pin 3 = TXD Pin 5 = GND Tip = White 2nd Barrel = Red Case = Shield

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Garmin 60 CSX

4 Pin Data

Data In (White) Ground (Black) Data Out (Brown) To Data In on GPS (White) To Data Out on GPS (Red) (Red) ACG/3AG 1/2 amp fuse To Test Kenwood Output 9 DB9 Female Pin 2 (Data In) Pin 3 (Data Out) Pin 5 (Ground) Connect Garmin to kenwood. After GPS starts flashing, connect to computer Run hyper terminal, 9600, Bits 8, Parity No, Start Bits 1, Flow Control None. $GPWL,. will appear if the D710 is set for NMEA. $PKWDWPL,. will appear if the D710 is set for Kenwood. Continued on next page Ground + 12-32 VDC 2.5 mm, 3 conductor plug Shield is ground
To Data In on GPS (White) To Data Out on GPS (Red) 2.5 mm, 3 conductor plug Shield is ground White = Tip Red = Ring Shield = Base
Kenwood TM-D710A Radio Setup Turn the radio ON. Press the F key to access the Setup Menu. Press the MHZ knob. Turn knob to select APRS. Press the BACK Button to select the next menu. Basic Setting Menu #600 Enter your call sign. Set Beacon Type to APRS. Turn the MHZ knob to scroll through menus. Internal TNC Menu # 601 Do not make any changes. Leave all settings at Default. A-Band Data Band Data Speed 1200 bps DCD Sense D or RxD Band TX Delay 200 ms GPS Port Menu #602 Change the Baud Rate to 9600 or 4800 depending up the gps receiver speed. Set the Input to GPS Set the Output to Waypoint Waypoint Format Menu # 603 Set Format to NEMA Change NAME to 9-CHAR The Output setting should be set to ALL Beacon Information Menu # 606 Speed setting should be turned ON Altitude setting should be turned ON Position Ambiguity should be turned OFF Beacon TX Algorithm Menu # 611 Set the Method to Auto Press ESC to return to the main page Change the APRS Frequency to: 144.390 Select TNC and press to turn on APRS 12 Press BCON to turn on -- BCN will appear in the upper right corner If you interface the units and do not see a flashing GPS signal on the upper right hand corner of the Kenwood, then the APRS cable may not be plugged-in all the way or correctly. Please check that the cord is plugged into the proper ports and plugged-in all the way.