Kenwood Th-D7a(G) Dual Bander Instruction Manual

							INSTRUCTION MANUAL
144/440 MHz FM DUAL BANDER
TH-D7A(G)
KENWOOD CORPORATION
ã B62-1359-00 (K)
09 08 07 06 05 04 03 02 01 00
ENHANCED FEATURES
ST STACON CONPACKET
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							CHAPTER1AUTOMATIC 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
CONTENTS
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).
CHAPTER2APRS¨ 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
CHAPTER3 MENU REVISIONS
CHAPTER4 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 
						

							1
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:
Depending on the types of stations, you will also receive
the following information:
AUTOMATIC PACKET/ POSITION REPORTING SYSTEMÒ
The Automatic Packet/ Position Reporting System
(APRS
Ò) 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.
n o c i n o i t a t Sr o t a c o l e r a u q s d i r G / a t a d n o i t i s o P
t n e m m o c n o i t i s o Ptx e t s u t a t S
n o i t a t s m o r f e c n a t s i Dno i t a t s f o n o i t c e r i D
n o i t a t s e l i b o Me d u t i t l A / d e e p s g n i v o M / n o i t c e r i d g n i v o M
n o i t a t s d e x i F/ a n n e t n a f o t h g i e H / r e w o p t i m s n a r T
y t i v i t c e r i d a n n e t n A / n i a g a n n e t n A
n o i t a t s d e x i Fd e s s e r p m o c g n i s u (
) t a m r o f a t a d S R P Ae g n a r t i m s n a r T
n o i t a t s r e h t a e W/ d e e p s d n i W / n o i t c e r i d d n i W
r u o h t s a l n i l l a f n i a R / e r u t a r e p m e T 
						

							2
uAccess Menu 2Ð4 to program position data
{page 9}.
iAccess Menu 2Ð6 to select from 15 position
comments {page 10}.
oIf you want, access Menu 2Ð9 to enter status
text using up to 20 alphanumeric characters
{page 11}.
!0Access Menu 2ÐC to select the operation method
for transmitting APRS data {page 15}.
!1Press [BCON].  If you selected ÒPTTÓ in step !0,
then press and release the PTT switch.  See
page 15. qAccess Menu 2ÐM to select band A or B as the
data band {page 3}.  The default is band A.
wPress [TNC] to enter APRS mode.
¥ÒÓ should appear.
eOn 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}.
rAccess Menu 2Ð1 to program your call sign
(9 digits max.) {page 7}.
tIf you have connected a GPS receiver, access
Menu 2Ð2 and select ÒNMEAÓ or ÒNMEA96Ó
{page 3}.  The default is ÒNOT USEDÓ.
yAccess Menu 2Ð8 to select your station icon
{page 8}.
OPERATION FLOW
The following flow chart includes only the steps to give
APRS a quick try.
Now you are ready to receive APRS data from other
stations.  Refer to ÒRECEIVING APRS DATAÓ {page 4}.
To transmit your APRS data, proceed to step r.
When using a personal computer, press [TNC] repeatedly
in step q until ÒPACKETÓ 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:
uTo distinguish your various stations or nodes, you can have up to 15
Secondary Station IDentifiers (SSIDs); ex. WD6BQD-1 to WD6BQD-
15.  You always have to put a dash between your call sign and SSID
number.
uIf you have blanked the data band by pressing [DUAL], you cannot
select APRS mode in step q. 
						

							3
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.
Note:  Turn OFF the transceiver power before making the connections.
In order to use the connected GPS receiver, access
Menu 2Ð2 (GPS UNIT) to select ÒNMEAÓ or ÒNMEA96Ó.
The default is ÒNOT USEDÓ.  Select ÒNMEA96Ó when
using a 9600 bps GPS receiver.
SETTING UTC OFFSET
This transceiver allows you to correct the UTC offset;
UTC stands for Universal Time Coordinated.  Access
Menu 2ÐO (TIME ZONE) and select the appropriate UTC
offset in the range from +12:00 to Ð12:00 in steps of 30
minutes.
SELECTING DATA BAND
On this transceiver you can select data band for APRS
mode independent of the selection (in Menu 1Ð4Ð1)
for Packet mode.  Access Menu 2ÐM (DATA BAND)
and select band A or B as the data band for receiving
or transmitting APRS data.  The default is band A.  Ò
Ó
indicates the current data band.
Note:  In Menu 2ÐM, the selection switches among A, B, A:TX B:RX, and
A:RX B:TX.  Select A:TX B:RX or A:RX B:TX if APRS networks which use
two separate frequencies become available in the future.  Ò
Ó appears for
the data transmit band and Ò
Ó appears for the data receive band.
SELECTING PACKET TRANSFER RATE
The default APRS packet transfer rate set on the built-in
TNC is 1200 bps which is the standard among the
current APRS networks.  If APRS networks which use
9600 bps transfer rate become available in the future,
access Menu 2ÐN (PACKET SPEED) and select Ò9600
bpsÓ.  Ò96Ó will appear.
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GPS receiver To GPS jack
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							4
RECEIVING APRS DATA
Each time new APRS data is received, the frequency
display is interrupted to show information as below:
¥ The received APRS data may include information on an
object such as a hurricane or tornado.  In this case, the
name of the object appears instead of a call sign.
¥ The transceiver restores the frequency display after
approximately 10 seconds pass or when you press any key.
Note:
uWhen you receive APRS data including an ÒEmergencyÓ comment, a
different format of display from the above will appear and a different
beep will sound.
uWhen you receive APRS data that you transmitted, the frequency
display is not interrupted.  ÒMY POSITIONÓ will appear at the bottom
of the display.  This could happen when one or more digipeaters
{page 13} are used.
If a received packet does not include new (or proper)
APRS data, the frequency display is not interrupted.  An
indicator such as ÒdPÓ appears depending on the types
of data.  See the table.
1The 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.
This transceiver beeps each time it receives any type of
APRS packet.  You may access Menu 2ÐF (BEEP) to
change this setting.  The default is ÒALLÓ.  The selection
in this menu is shared with APRS Message {page 19}.
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r o t a c i d n Ig n i n a e M? d e d u l c n I s i t a h W
P n
} 7 1 e g a p {n o i t i s o p w e Ntn e m m o c n o i t i s o p w e N
S n
} 7 1 e g a p {s u t a t s w e Ntx e t s u t a t s w e N
P dn o i t i s o p e t a c i l p u Dtn e m m o c n o i t i s o P
d e v i e c e r y d a e r l a
S ds u t a t s e t a c i l p u Dyd a e r l a t x e t s u t a t S
d e v i e c e r
P >n o i t i s o p d n o y e B
t i m i ln o i t a t s a m o r f a t a D
d e t c e l e s e h t e d i s t u o
} 6 1 e g a p { e g n a r
Q?
1y r e u Qgn i d n e s r o f t s e u q e R
n o i t a m r o f n i
? ?d e d o c e d e b t o n n a c t a h t t e k c a P
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s n o i t c e l e St e k c a P w e Ne t a c i l p u D
t e k c a Pt e k c a P d i l a v n I
F F Ope e b o Npe e b o Npe e b o N
E N I M
e g a s s e M S R P A r o f y l n o d i l a v s i n o i t c e l e s s i h T
. } 9 1 e g a p {
W E N L L Ape e Bpe e b o Npe e b o N
L L Ape e Bpe e Bpe e B
Position
comment
(or status text) 
						

							5
4Press [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.
5Press [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.
ÒDELETE?Ó appears.  Press [OK] to delete the
information.
To delete the information of all stations, press [A/B] (1 s)
in step 2.  ÒDELETE ALL?Ó appears.  Press [OK].  Then
ÒSURE?Ó 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:
uWhen data from the 41st station is received, the oldest data in
memory is replaced by that data.
uEach time new APRS data is received from the same station, the old
data from that station (in memory) is replaced by new data.
uWhen 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 2Ð3 (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.
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.
1Press [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.
2Press [UP]/ [DWN] to select the desired station.
3Press [OK].
¥ The display for accessing the desired information
appears.
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							6
ESC
ESC DWNUP
DWNUP
ST STACON CONST
STACON CON
OK
OK
ST STACON CONw
q
q
qer
qw
er
qw
q
q
we
q
w
Fixed station 1Fixed station Mobile station Weather station
qWind direction
wWind speed
m: Mile/hour
k: km/hour
eTemperature
F: ° F c: °C
r
Amount of rainfall in
the past hour ( or mm)
qTransmit power
wHeight of antenna
(elevation)
Õ : Feet M: Meter
eAntenna gain
rAntenna directivity
omni: OmnidirectionalqTransmit range
(mile or km)
1Using compressed
APRS data formatqAltitude
Õ : Feet M: Meter
wMoving direction
eMoving speed
m: Mile/hour
k: km/hourqGrid square locator
wDistance from
the station
(mile or km)
qLatitude/ longitude
data
N: North S: South
W: West E: East qSituation
wPosition comment
(TH-D7/ TM-D700/ Mic
Encoder only)
or 
call sign
(object only)
qstatus text 
						

							7
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.
1Press [MENU] to enter Menu mode.
2Press [2], [1] to select Ò2Ð1 (MY CALLSIGN)Ó.
¥ The display for entering characters appears; the first
digit blinks.  The default is ÒNOCALLÓ.
3Press [UP]/ [DWN] to select a character, then press
[OK].
¥ You can enter 0 to 9, A to Z, and Ð.
¥ The cursor moves to the next digit.
4Repeat step 3 to enter up to 9 digits.
¥ Pressing [OK] after selecting the 9th digit completes the
programming.
¥ To complete programming 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.
5Press [MENU] to exit Menu mode.
You can also use the keypad to enter alphanumeric
characters in step 3.  For example, each press of [TNC]
switches entry as A, B, C, then 2.  Press [ENT] to enter Ð.
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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 \$.
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, Ò
Ó indicates the other
station is located at the northeast relative to your position.
0.0 to 9999 miles (or km) are shown for distances from
other stations.  ÒxxxxmiÓ (or ÒxxxxkmÓ) is shown for
distances over 9999 miles (or km).  If you do not change
the position data in Menu 2Ð4 from the default, Ò----miÓ
(or Ò----kmÓ) is shown.
On the TH-D7A(G), the default units for distance and
temperature are mile and °F.  If necessary, access Menu
2ÐH (mile/km) and/or Menu 2ÐI (TEMPERATURE) to
change the setting(s).
Note:  Some stations transmit APRS data through TNCs connected to
GPS receivers.  If you receive data from those stations, ÒGOODÓ
(satellites tracked) or ÒLASTÓ (satellites not tracked) will be shown as the
situation, with GLL, GGA, or RMC which designates $GPGLL, $GPGGA,
or $GPRMC format. 
						

							8
SELECTING YOUR STATION ICON
Select an icon which will be displayed on the monitors of
other stations as your ID.  You may select an icon
depending on your current location.
1Press [MENU] to enter Menu mode.
2Press [2], [8] to select Ò2Ð8 (ICON)Ó.
3Press [UP]/ [DWN] to select from 15 icons plus
ÒOTHERSÓ, then press [OK].
¥ The following 15 icons are selectable:
4Press [MENU] to exit Menu mode.APRS supports approximately 200 icons.  It allows users
to select each icon by specifying a combination of two
ASCII codes, for example, / and !.  One is a symbol
code, and the other is a table identification code (either /
or \).  If you select ÒOTHERSÓ in step 3, use the following
procedures:
4Press [UP]/ [DWN] to select a symbol code, then
press [OK].
5Press [UP]/ [DWN] to select a table identification
code, then press [OK].
¥ For icons that can include overlay characters, 0 ~ 9 and
A ~ Z are also selectable.
6Press [MENU] to exit Menu mode.
Note:  Because the icon code table is occasionally revised,
download the latest icon code table from Mr. Bruningas Web page
(http://web.usna.navy.mil/~bruninga/aprs.html).  Click on
ÒDOWNLOAD APRSÓ on its home page, then download APRSnnn.zip
from the FTP directory where nnn is a 3-digit number.  After
uncompressing the zip file, you will find  a created README
directory.  Open and see Symbols.txt under this directory.
D O O W N E KV T S Sel g n a i r T
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