Kenwood Th-D7a(G) Dual Bander Instruction Manual

							9
6Press [OK].
¥ The degree digits blink.
7Press [UP]/ [DWN] to select data for degrees.
8Press [OK].
¥ The minute digits blink.
9Repeat steps 7 and 8 to select data for minutes
(down to one hundredth digit).
10Press [UP]/ [DWN] to switch between west longitude
(default) and east longitude.
11Press [OK].
¥ The degree digits blink.
12Press [UP]/ [DWN] to select data for degrees.
13Press [OK].
¥ The minute digits blink.
14Repeat steps 12 and 13 to select data for minutes
(down to one hundredth digit).
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 ÒfieldsÓ.  Each field is then divided into 100 ÒsquaresÓ (00 ~
99).  Each square is further divided into 576 Òsub-squaresÓ (AA ~ XX).
The world is eventually divided into 18, 662, 400 grids; each grid is
expressed with 6 digits.
1Press [MENU] to enter Menu mode.
¥ You may press [POS] instead.  Then you can skip
step 2.
2Press [2], [4] to select Ò2Ð4 (MY POSITION)Ó.
¥ A channel number blinks.
3Press [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.
4Press [OK].
¥ ÒNÓ (or ÒSÓ) blinks.
5Press [UP]/ [DWN] to switch between north latitude
(default) and south latitude.
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3Press [UP]/ [DWN] to select the desired comment.
4Press [OK] to complete the setting.
5Press [MENU] to exit Menu mode.
The selectable comments are listed below:
1Selecting these comments will highlight your station on all
other APRS computer displays.
2Select this comment only when absolutely necessary.  You
will activate alarms in all monitoring APRS stations.
Note:  Custom 0 ~ 6 selectable in Menu 2Ð6 are not defined; these are
reserved for personal definition.
15As necessary, press [OK] then repeat steps 3 to 14 to
store in up to 3 memory channels.
16Press [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:
uIf you have selected ÒNMEAÓ or NMEA96Ó in Menu 2Ð2, 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.
uIf using a GPS receiver, you can also copy the measured data to the
position entry display for Menu 2Ð4.  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].
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.
1Press [MENU] to enter Menu mode.
2Press [2], [6] to select Ò2Ð6 (POS COMMENT)Ó.
) t l u a f e d ( y t u D f f Oet u o R n Eec i v r e S n I
g n i n r u t e Rde t t i m m o Cla i c e p S
1
y t i r o i r P1! y c n e g r e m E26 ~ 0 m o t s u C
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STORING STATUS TEXT
Status text is another comment to transmit with position
data.  Unlike a position comment, you can make any
desired comment using a maximum of 20 alphanumeric
characters.  This transceiver has 3 memory channels for
preprogramming.
Note:  Attaching a long comment can double the size and length of the
packet.  Enter a comment only if necessary.
1Press [MENU] to enter Menu mode.
2Press [2], [9] to select Ò2Ð9 (STATUS TEXT)Ó.
¥ A channel number blinks.
3Press [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.
4Press [OK].
¥ The display for entering a comment appears; the first
digit blinks.
5Press [UP]/ [DWN] to select a character.
¥ You can enter alphanumeric characters plus special
ASCII characters.
6Press [OK].
¥ The cursor moves to the next digit.
7Repeat steps 5 and 6 to enter up to 20 digits.
¥ Pressing [OK] after selecting the 20th digit completes
the programming.
¥ To complete programming a comment after entering less
than 20 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.
8As necessary, press [OK] then repeat steps 3 to 7 to
store in up to 3 memory channels.
9Press [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 [
].
You can also use the keypad to enter alphanumeric
characters in step 5.  For example, each press of [TNC]
switches entry as a, b, c, 2, A, B, then C.  Press [DUAL]
to switch 0 and space.  Press [ENT] to switch among the
special ASCII  characters.
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PROGRAMMING A GROUP CODE
Using a group code relieves you from receiving
unwanted packets.  The APRS on this transceiver
supports the following three types of group codes.
All calls:
Program a 6-digit code that always starts with AP.  You
will receive all APRS packets which include AP in group
codes.  It does not matter whether or not the subsequent
4 digits match.  The default on this transceiver is
APK002; K002 stands for KENWOOD Ver. 2.
Note:  APRS packets, which are generated via various methods, include
various codes instead of group codes.  Using ÒAll callsÓ allows you to
receive packets which include the following codes.
Special:
Enter ÒSPCLÓ.  You will receive only APRS packets that
include SPCL as a group code.  This code is generally
programmed by all stations at a special event.
Alternate net:
Program any other code with a maximum of 6 digits.
You will receive only APRS packets that include the
exact same code.  In order to reject other packets, this
code should not include characters specified by the
above two types.
Note:  The display shown in step 1 has a field for entering up to 9 digits
(not 6 digits) because of possible future enhancement of the group code
system.
1Access Menu 2ÐE (UNPROTOCOL), then press
[OK].
¥ The display for entering characters appears; the first
digit blinks.  The default is APK002 (All calls).
2Press [UP]/ [DWN] to select a character.
¥ You can enter 0 to 9, A to Z, and Ð.
3Press [OK].
¥ The cursor moves to the next digit.
4Repeat steps 2 and 3 to enter up to 6 digits.
¥ Each press of [ESC] causes the cursor to move
backward.
¥ Pressing [A/B] deletes the digit at which the cursor is
blinking.
5Press [OK].
¥ If the cursor is blinking over the last digit that you have
entered, press [OK] twice.
6Press [MENU] to exit Menu mode.
You can also use the keypad to enter alphanumeric
characters in step 2.  For example, each press of [TNC]
switches entry as A, B, C, then 2.  Press [ENT] to enter Ð.
S P GMY STS QQCNO C A E B
L L ANR W Y K SLI A MDILC P S
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							13
PROGRAMMING A PACKET PATH
A packet path specifies how APRS data should be
transferred via one or more repeaters.  A repeater, which
is used for packet transfer, is commonly called a
digipeater.  This came from a digital repeater.  A
digipeater is usually located on a mountain top or high
building.  Unlike a voice repeater, it operates on a
simplex frequency.  Each volunteer who installs a
digipeater programs it either as a WIDE or RELAY type.
Generally a WIDE transmits packets over much greater
distances than a RELAY.
On this transceiver, you can edit a packet path using a
maximum of 32 alphanumeric characters.  The default is
ÒRELAY,WIDEÓ that is one of the common settings.  With
this setting, packets will be transferred to a RELAY first,
then to a WIDE.  The APRS supports various methods
for specifying a packet path.  Some of those methods
are described on the next page.
Note:
uThis transceiver is incapable of functioning as a digipeater.
uTo serve for mobile stations who always use the RELAY,WIDE path,
most WIDEs also respond to packets addressed to a RELAY.
1Access Menu 2ÐB (PACKET PATH), then press [OK].
¥ The display for entering characters appears; the first
digit blinks.
2Press [UP]/ [DWN] to select a character.
¥ You can enter 0 to 9, A to Z, , (comma), and Ð.
3Press [OK].
¥ The cursor moves to the next digit.
4Repeat steps 2 and 3 to enter up to 32 digits.
¥ Use a comma to separate each path segment.
¥ Pressing [OK] after selecting the 32nd digit completes
the programming.
¥ To complete programming after entering less than 32
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 2.  For example, each press of [TNC]
switches entry as A, B, C, then 2.  Press [ENT] to switch
between , and Ð.
WIDE-type
RELAY-type
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r e t e m a r a Pf o r e b m u N
s r e t a e p i g i dn o i t c e r i D
11 ll A
22 ll A
33 ll A
44 ll A
55 ll A
66 ll A
77 ll A
8)e r o m r o ( 2
1h t r o N
9)e r o m r o ( 2
1h t u o S
0 1)e r o m r o ( 2
1t s a E
1 1)e r o m r o ( 2
1t s e W
2 1yn a M
2h t r o N
3 1yn a M
2h t u o S
4 1yn a M
2t s a E
5 1yn a M
2t s e W
1The first digipeater which receives your APRS data specifies
the entire route to the destination before forwarding; often 2
digipeaters are used in total.
2The digipeater which receives your APRS data specifies the
call sign of the next digipeater before forwarding.  This is
repeated until your APRS data reaches the destination.
Let us describe five basic methods for editing a packet
path.  Methods 3 to 5 are supported only by advanced
APRS networks.
Method 1 (Specific Path):
Program the call signs of one or more digipeaters in the
sequence of transfer relay; ex. ÒKD6ZZV,KF6RJZÓ.
Method 2 (Generic Path):
Program RELAY and/or WIDE; ex. ÒRELAY,WIDEÓ (or
simply ÒR,WÓ).  In this example, your APRS packet is
transferred to any RELAY digipeater near your position
first, then to any WIDE digipeater.  You can also program
more than one WIDE.  If you enter ÒWIDE,WIDEÓ for
example, your APRS packet will be transferred to any
WIDE near your position first, then to another WIDE.
Method 3 (WIDEN-N Path):
Program WIDEN-N, where both Ns indicate the number
of WIDE digipeaters to be used for relay.  If you enter
ÒWIDE3-3Ó (or simply ÒW3Ó) for example, your APRS
packet will be relayed by three WIDEs in any direction.
Method 4 (TRACEN-N Path):
The operation is the same as WIDEN-N except that
digipeaters add their call signs to your packet before
forwarding.  You may program ÒTRACE3-3Ó (or simply
ÒT3Ó) for example.
Method 5 (SSID Path):
Program a single number 1 to 15.  You can easily specify
the number of digipeaters that will be used for relay.  You
can also specify which directions of digipeaters relative
to your position will be used.  See the table. 
						

							15
SELECTING PACKET TRANSMIT METHOD
Select the operation method for transmitting APRS data.
The table concludes how operations differ depending on
the selection:
1Access Menu 2ÐC (DATA TX), then press [OK].
2Press [UP]/ [DWN] to select Manual (default), PTT, or
Auto.
3Press [OK] to complete the setting.
4Press [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.
L A U N A Mf o s s e r p h c a E] N O C B [S R P A e h t s t i m s n a r t
. a t a d
T T P1s s e r P] N O C B [n o i t c n u f e h t h c t i w s o t
. N O
¥.s k n i l b d n a s r a e p p a Ó N O C B Ò
2e h t d l o h d n a s s e r PT T Pn e h t , h c t i w s
. e n o h p o r c i m e h t o t n i k a e p s
3e h t e s a e l e RT T P. h c t i w s
¥eh t s t i m s n a r t h c t i w s e h t g n i s a e l e R
. a t a d S R P A
¥at a d S R P A e h t t i m s n a r t e r t o n n a c u o Y
D Ð 2 u n e M n i d e t c e l e s e m i t e h t s s e l n u
l i t n u t i a W . s e s s a p ) L A V R E T N I X T (
e t a c i d n i o t g n i k n i l b s t r a t s Ó N O C B Ò
. y d a e r s i g n i t t i m s n a r t
4s s e r p , F F O n o i t c n u f e h t h c t i w s o T
] N O C B [. n i a g a
O T U A1s s e r P] N O C B [n o i t c n u f e h t h c t i w s o t
. N O
¥.s r a e p p a Ó N O C B Ò
¥eh t s t i m s n a r t N O n o i t c n u f e h t g n i h c t i w S
a t a d S R P A , t a h t r e t f A . e c n o a t a d S R P A
s l a v r e t n i t a d e t t i m s n a r t y l l a c i t a m o t u a s i
X T ( D Ð 2 u n e M n i d e t c e l e s d o i r e p e h t f o
. ) L A V R E T N I
2s s e r p , F F O n o i t c n u f e h t h c t i w s o T
] N O C B [. n i a g a
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SELECTING PACKET TRANSMIT INTERVAL
You can change the interval for automatically transmitting
APRS data.  Access Menu 2ÐD (TX INTERVAL) and
select 0.2, 0.5, 1, 2, 3, 5, 10, 20, or 30 minutes.  The
default is 5 minutes.
Note:
uWith ÒAUTOÓ in Menu 2ÐC 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.
uWhile signals are present, APRS data is not transmitted after the
interval.  Approximately 2 seconds after signals drop, transmitting is
executed.
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 2ÐP (TX DELAY) and select 100, 200, 300,
400, 500, 750, or 1000 msec.  The default is 500 msec.
SELECTING STATUS TEXT TRANSMIT RATE
A long status text string can double the size and length of the
APRS packet.  Access Menu 2ÐA 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.
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 2Ð7 (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 2ÐH (mile/km) {page 7}.
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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 2ÐG (DISPLAY AREA) to select
ÒONE LINEÓ.  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; ÒnPÓ and ÒnSÓ designate New
Position and New Status respectively {page 4}.  The
default is ÒENTIRE DISPÓ.
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 2Ð5 (POS AMBIGU) and
select 1 to 4, or OFF (default).  The table shows how the
digits will be cleared on a recipient.
F F O1234
Õ 8 3 . 0 5 û 3 3Õ3 . 0 5 û 3 3Õ. 0 5 û 3 3Õ. 5 û 3 3Õ. û 3 3
Õ 0 8 . 3 1 û 8 1 1Õ8 . 3 1 û 8 1 1Õ. 3 1 û 8 1 1Õ. 1 û 8 1 1Õ. û 8 1 1
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rAccess Menu 2Ð1 to program your call sign
(9 digits max.) {page 7}.
tIf necessary, access Menu 2ÐB to program a
packet path {page 13}.
yEnter a message (or bulletin) using up to 45
alphanumeric characters {page 21}.
qPress [TNC] to switch ON the TNC.
¥ÒÓ appears.
wAccess Menu 2ÐM to select band A or B as the
data band {page 3}.
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}.
The APRSÒ 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.
OPERATION FLOW
The following steps should guide you to a good start of
APRS Message operation.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; Òack0 ~ 9 (or A ~ Z)Ó appears. Now you are ready to receive a message from other
stations.  Refer to ÒRECEIVING A MESSAGEÓ {page 19}.
To transmit a message, proceed to step t.
APRSÒ MESSAGE