Kantronics KAM-Plus User guide

KAM Plus

Reference Manual

Version 7.0 – March 21, 1994
Version 7.1 – August 29, 1994
Version 8.0 – May 1995
Version 8.2 – May 1995

Table of Contents

Introduction to Commands

Some Abbreviations .......................................................................... 3

Entry ................................................................................................ 3

Format ............................................................................................. 3

Parameter Types ............................................................................... 3

Commands ............................................................................................... 5

Operation of the KAM Plus ...................................................................... 53

Tuning in the Signals ......................................................................... 53

AMTOR Operation ............................................................................. 54

ASCII Operation ................................................................................ 58

CW Operation ................................................................................... 59

G-TOR Mode ..................................................................................... 61

NAVTEX Operation ............................................................................ 65

Packet Operation ............................................................................... 68

PACTOR Operation ............................................................................ 70

RTTY Operation ................................................................................. 72

Kantronics PBBS ...................................................................................... 74

Setting up other functions of your KAM Plus .......................................... 77

PBBS ................................................................................................ 77

KA-Node ........................................................................................... 77

Gateway ........................................................................................... 77

PBBS SysOp Functions ....................................................................... 77

Remote Access to your KAM Plus ........................................................ 79

Host Mode Operation ........................................................................ 80

KISS Mode Operation ........................................................................ 80

WEFAX Operation .............................................................................. 80

Hardware Information ............................................................................. 81

Precautions ...................................................................................... 81

Connecting to the Computer .............................................................. 81

Connecting to your Radios ................................................................. 82

AFSK Output Level ............................................................................ 84

Hand Held modification ..................................................................... 84

Watchdog Timer ............................................................................... 84

Assembly and Disassembly of your KAM Plus ....................................... 84

Hard Reset ....................................................................................... 85

Calibration / Equalization ................................................................... 85

Specifications .................................................................................... 87

ASCII Chart .............................................................................................. 88

Parts Lists ................................................................................................. 89

PCB Layout ............................................................................................... 91

Schematics ............................................................................................... 92

2

Introduction to Commands

Some Abbreviations

<Ctrl-x>: This represents a single control character sent from your terminal program to the KAM

Plus. To send this character, press and hold the control key and type the second key (x) while
holding the control key down. If another letter follows this (i.e. <Ctrl-C>T) do not continue to hold
the control key down while pressing the other letter. If your keyboard does not have a control key,
consult your computer/terminal manual to determine which key performs the control key function.
If your terminal does not have a key that performs this function, you will need to change the Pa­rameters in the KAM Plus that define these special Ctrl key characters.

$ preceding a number denotes a hex number (base 16)
<CR>: carriage return, $0D, decimal 13, <Ctrl-M>, ENTER key
<LF>: line feed, $0A, decimal 10, <Ctrl-J>
I/O: Input / Output

Entry

A command is entered to the KAM Plus by typing the command name and its argument (setting or
value) in the Command mode. The prompt for the Command mode is cmd:.

The command name and the argument must be separated by a space, and the KAM Plus takes ac­tion when a carriage return <CR> is typed. All commands may be abbreviated to the shortest
string indicated by the CAPITAL letters in the command reference.

You may examine the value of any parameter by typing the command name followed by a <CR>.
The DISPLAY command allows you to display sets of related parameters as a group.

Format

All commands are listed alphabetically in this manual. On the first line of a command will be the
command name followed by any arguments used with the command. Arguments shown in square
brackets ([ ]) are optional. If a command accepts several different values, or a range of values, the
permissible values will be shown in parentheses (). Arguments may also be shown separated by a
vertical bar ( | ). This indicates that you may choose ONE of the items separated by the bar.

Some of the commands in the KAM Plus are dual-port commands, allowing you to set one value
for the HF port of the KAM Plus and a different value for the VHF port. This is indicated by a dual­port default value (e.g. (192/63)). The value shown before the slash bar is the value used for the
HF port of the KAM Plus, and the value after the slash is used for the VHF port. There are a few
exceptions to the HF/VHF convention, in which the value before the slash applies to non-packet
modes of Operation, and the value after the slash is for Packet Operation. These are noted in the
description of the command.

Parameter Types

n

(range): Any number within the range is permissible.

n

($00 – $FF): Any HEX number - normally used to define an ASCII character. When entering a
HEX number, be sure to type the $ Symbol to indicate a hex number follows. See the ASCII chart
at the end of the manual to determine the code required.

3

flags (choiceA) | choiceB): Many commands allow a choice of two or more possible entries
(e.g. ON | OFF). For ON/OFF choices, you may also enter YES or NO. Other commands accept one
of several choices (ON | OFF | TO | FROM). Enter the appropriate word to indicate your choice.

callsigns xxxxxx-n: Many commands require a callsign or alias as an argument. These parame­ters are normally set to Amateur callsigns, however any combination of 6 numbers and/or letters is
permitted. You may optionally include an "extension" (SSID, Secondary Station Identifier) which is
a decimal number between 0 an 15 (inclusive) used to distinguish two or more stations on the air
with the same amateur call. SSIDs of 0 are not displayed by the KAM Plus.

The commands which can used when INTFACE is set to the default NEWUSER, are underlined.

4

Commands

8bitconv ON | OFF

Default ON

When ON, transmission of 8-bit data is allowed in PACKET and ASCII Modes. When OFF, the 8th
data bit is set to 0 before transmission and all data received in these modes will have the 8th bit
set to 0.

See also: parity

ABaud

This command sets the baud rate for communication with your computer or terminal. It is set au­tomatically when you press the * during the KAM Plus autobaud routine.

See also: reset, restore

AMtor [
Immediate command

This command places the KAM Plus in AMTOR STANDBY Mode. Entering AMTOR xxxx[xxxxx] will
cause the KAM Plus to start a link sequence to the station specified. Entering AMTOR without a
SELCAL will allow your KAM Plus to respond to a link request from another station, or to transmit
Mode B (FEC) AMTOR. To transmit Mode B, type [Ctrl C][T] to begin transmission and type
[Ctrl C][E] to end the transmission. You may also copy Mode B transmission in this mode, if
ARQBBS is OFF.

See also: arqtime, autostrt, canline, fec, lamtor, misschar, mygroup, myselcal, pmode, rephase,
txdtor, txdfec

ARqbbs ON | OFF
Default OFF

When ON, the PBBS in your KAM Plus may be accessed by another station using AMTOR, G-TOR or
PACTOR ARQ. When OFF, the PBBS may only be accessed on PACKET. Note that if ARqbbs is ON,
you will not be able to transmit FEC from the Standby Modes.

n

xxxx[xxx

(n= 0, 300, 600, 1200, 1800, 2400, 4800, 9600)

]] characters (or 4, 5 or 9 digits)

See also: arqid, pbbs

ARQId

Default 9

This command sets the time interval in 1 minute increments for an automatic CW ID when operat­ing AMTOR, G-TOR or PACTOR ARQ. The CW ID will be transmitted at the speed set by the
CWSpeed command and he text of the ID is set with the CWIDText command. Setting ARQId to
0 disables the automatic.

See also: arqbbs

ARQTime

Default 2

This command sets the timeout interval when attempting to link to another station in AMTOR ARQ
Mode. The interval is set in increments of 64 ARQ cycles (approximately 28.8 seconds).

See also: amtor

n

n

(n= 0 – 31)

(n= 1 – 10)

5

ASCBaud

n

(n= 20 – 500)

Default 110

This command sets the default baud rate used when entering ASCII Mode with no baud rate speci­fied.

See also: ascii

Ascii [n] (n= 20 – 500)
Immediate command

This command places the KAM Plus in ASCII Mode. If you specify the optional valuen, the KAM
Plus will enter ASCII at the specified speed, otherwise it will operate at the speed set in ASC-
BAUD.

See also: ascbaud, autostrt, canline, hbaud, pmode

AUtocr

n

(n = 0 – 255)

Default 0

A carriage return <CR> character is sent to the radio afterncharacters are typed in a line. when
operating RTTY, ASCII, AMTOR, G-TOR or PACTOR. Setting AUTOCR to 0 disables automatic car­riage returns.

AUTOLf ON | OFF
Default ON

When ON, a line feed is sent to the terminal after each carriage return. This command affects only
data sent to the terminal, not sent over the radio.

See also: crsup, lfsup

AUTOStrt ON | OFF
Default OFF

When ON and operating in RTTY or ASCII Mode, the KAM Plus will receive information only after it
has received the MYAUTOST identifier. It will then continue to receive until it receives four "N"s
signifying the end of message, or 30 seconds of no signal.

When ON and in AMTOR Mode or FEC Mode, only AMTOR SELFEC messages which contain any of
the SELCALs in MYSELCAL or MYGROUP will be received. Loss of lock will cause the KAM Plus to
stop receiving data.

See also: fec, myautost, mygroup, myselcal

AX25l2v2 ON | OFF
Default ON/ON

When ON, Level 2 Version 2 protocol is implemented for PACKET operation. When OFF, Level 2
Version 1 protocol is used.

See also: relink, retry, tries

6

AXDelay

Default 0

This command specifies a period of time to wait, in addition to TXDELAY, after keying the radio be­fore data is transmitted. If you operate through a voice repeater, this delay may be required to al­low the repeater's transmitter to turn on. Each unit represents 10 milliseconds.

n

(n= 0 – 255)

AXHang

Default 0

When operating through a voice repeater, this command should be set to the hang time of the re­peater. If the KAM Plus has detected activity within this time interval, it will not use the AXDELAY
setting, since the repeater should still be transmitting. Each unit represents 10 milliseconds.

Beacon (Every | After)
Default Every 0/Every 0

When set to Every, a beacon packet will be transmitted every n minutes. When set to After, a bea­con packet will be transmitted ONCE after n minutes of no channel activity. Settingnto 0 will dis­able beacon transmissions.

See also: btext

BER v8.2

In use BER test (???)

BIts

Default $00

This command specifies the bits to be inverted when receiving a RTTY or ASCII signal. This may
enable you to decode some scrambled RTTY/ASCII signals. Transmitted RTTY and ASCII is not af­fected by this command.

n

n

n

(n= 0 – 255)

(n= 0 – 255)

(n= $00 –$FF)

BKondel ON | OFF
Default ON

When ON, the KAM Plus will echo a backspace-space-backspace sequence to your terminal when
the DELETE character is received from the terminal. When OFF, the KAM Plus will echo a backslash
character ( \ ) when the DELETE character is received.

See also: delete, redisplay

BLtnEvery | After hh:mm:ss [START hh:mm:ss] (n= 1–4) v8.0
Default EVERY 00:00:00/EVERY 00:00:00

This command sets the interval between beacons for the associated string.nidentifies which LT is
used (1–4). If Every is specified, the LT will be transmitted at the interval specified by the
hh:mm:ss parameter. This is set in hours:minutes:seconds, and all characters must be specified.
The values before the / apply to the HF port and the values after the / apply to the VHF port. If
the optional key word START is given followed by a time (in 24 hour format), the beacons will not
be transmitted until the specified time. The beacon will then be transmitted according to the set­ting of the Every parameter. (NOTE: If the current time is past the start time, the beacon will start
at the next scheduled interval based on the start time.)

If AFTER is specified, the beacon will be transmitted once after no activity is detected on the chan­nel for hh:mm:ss time. Selecting AFTER does not allow the optional START parameter.

7

For example, setting BLt3 Every 00:15:00 START 03:30:00 would cause the third string (LT 3) to
be transmitted every 15 minutes, with the first transmission each day occurring at 03:30:00.

BReak ON | OFF v8.2
Default OFF

If BREAK is ON, a break at the keyboard causes a return to Command Mode from Converse of
Transparent Mode.

BText

text

(0 – 128 characters)

BTEXT specifies the content of a BEACON packet. To clear the BTEXT, enter a single % character
(BT %).

See also: beacon

BUDCalls [+ | -] callsign(s) | NONE NOT IN v8.2
Default NONE

A list of up to 10 callsigns for use with BUDLIST or CONLIST. To delete or add individual entries
precede the callsign with a - or + respectively.

See also: budlist, conlist

BUdlist OFF | TO | FROM | ON
Default OFF/OFF

When OFF, all packets are eligible to be displayed as monitored packets. When ON, only those
packets TO or FROM stations listed in the BUDCALLS will be monitored. When TO, only those
packets addressed TO stations in the BUDCALLS will be monitored, and when FROM, only those
packets FROM stations listed in the BUDCALLS will be monitored.

See also: budcalls, monitor, suplist

BUDlist [ON | OFF] [NONE | {+|-}call | call1,call2,...] v8.2

where call={callsign | {<|>}callsign | callsign{>|<>}callsign}

Default OFF NONE

BUDlist is used to determine which received packets will be monitored. When OFF or NONE, BUD­list will allow monitoring of all packets, even if it has callsigns in it's list.

The maximum number of callsigns allowed in BUDlist is 10. Up to 10 callsigns may be entered at
one, using the format shown after the command name, and the new list from 1 to 10 callsigns will
replace whatever list was there before. The BUDlist command can be used to add a single callsign
(+callsign), so long as there is room for the new callsign on the list (if there is not, the TNC re­sponds with EH? and returns you to the command prompt). Similarly, you can remove a single

callsign (-callsign) from the list. And to remove all items from the current list, enter BUDlist None.

A callsign entered without a SSID will match any SSID of that callsign. To match a specific SSID
only, enter the callsign with that SSID; for example, callsign-n, wheren= 0–15.

More selective monitoring is enabled when a callsign or two callsigns is combined with a ">"
and/or "<" character. For example, entering">callsign" will enable monitoring of packets TO that
callsign (assuming BUDlist is ON), entering "<callsign" will enable monitoring of packets from the
callsign, entering "callsign1>callsign2" will enable monitoring of packets from callsign1 to callsign2,

8

and entering "callsing1 <>callsign2" will enable monitoring of packets from callsign1 to callsign2
and vice versa.

 Note that an entry of callsign1>callsign2 or callsign1<>callsign2 counts as 2 of the 10 allowed

callsigns.

CALibrat

Immediate command

The CALIBRATE command is used to generate a signal which may be used as an aid in tuning the
transceiver for operation with the KAM Plus. Use of this command is detailed in the Calibra­tion/Equalization section of this manual. The letter X will return you to the Command Mode.

CAnline

Default $18 (Ctrl-X)

When entering commands or data to the KAM Plus, you may cancel the current line you are typing
(back to the last un-passed carriage return) by sending a [Ctrl-X] to the KAM Plus from your termi­nal. When operating non-packet modes, a [Ctrl-X] will clear the transmit buffer of any character
you have typed which have not already been transmitted over the radio.

See also: canpac, cpactime, pass

CANPac

Default $19 (Ctrl-Y)

When entering commands or data to the KAM Plus, you may cancel the entire packet (back to the
last un-passed SENDPAC character) by sending a [Ctrl-Y] from the terminal to the KAM Plus. When
in Command mode, [Ctrl-Y] acts as a cancel output character, turning off any output from the KAM
Plus. Typing another [Ctrl-Y] re-enables output.

See also: canline, cpactime, sendpac

CD Internal l External l Software
Default INTERNAL/INTERNAL

When set to INTERNAL, the KAM Plus will detect a signal when any energy is present on the audio
input to the KAM Plus. When set to EXTERNAL, the signal detection is supplied by an external de­vice, connected to the XCD pin of the radio port. When set to SOFTWARE, the firmware in the KAM
Plus will detect a signal based on the presence of PACKET data on the audio input. This setting al­lows open-squelch Operation. Proper equalization is important for correct operation of software
carrier detection.

n

n

(n= $00 – $FF)

(n= $00-SFF)

When operating RTTY or ASCII, the KAM Plus will use only INTERNAL or EXTERNAL. If this com­mand is set to SOFTWARE, the KAM Plus will act as though it were set to INTERNAL when operat­ing these modes.

See also: swp

––> !!!

9

CD {Internal | External | Software} v8.2
Default INTERNAL/INTERNAL

The CD command selects which carrier detect method will be used for a given port.

For either port, set to INTERNAL, the TNC will detect a signal present on the channel – using an
energy type carrier detect – allowing shared voice and data on the same channel.

For each port , set to EXTERNAL, the carrier detect is supplied by an external device, connected to
the XCD pin on that radio port.

If port 1 is set to SOFTWARE, the firmware inside the TNC will detect the presence of data to ena­ble the carrier detection, allowing operation with un-squelched audio. Correct operation of SOFT­WARE carrier detect is affected by proper equalization and the SWP parameter. If your RCV light
flickers, this is an indication that you may need to adjust the equalization. (Equalization is set with
an internal jumper.)

When CD is set to Internal or Software (port 1 only), the external carrier detect pin on the radio
connector (if wired) will also be used to hold off the TNC from keying the radio.

 Hint: For one use of this function, see the APRS and GPS section of this manual.

See also: swp

CHeck

Default 0

This command specifies the time interval, in 10 second increments, used to check the condition of
a PACKET connection if no data is passing between the connected stations. If AX25L2V2 is ON,
the KAM Plus will send a "check" packet everyn× 10 seconds to insure the other Station is still re­sponding. If AX25L2V2 is OFF and n × 10 seconds has passed with no data being transferred, the
KAM Plus will send a disconnect to the other station. Setting CHECK to 0 disables the automatic
check function.

See also: ax25l2v2, kntimer, relink, rnrtime

CMdtime

Default 1

This command sets the permissible time (in 1 second increments) between characters when at­tempting to exit from the Transparent Mode. WARNING: Setting CMdtime to 0 will prevent you
from exiting the Transparent Mode.

See also; command, trans

n

n

(n= 0 – 255)

(n= 0 – 15)

CMSg ON | OFF | DISC | PBBS
Default OFF/OFF

When OFF, the custom text stored in CTEXT will not be sent to a connecting station. When ON,
the custom text will be sent. When set to DISC, the custom text will be sent, and then your KAM
Plus will disconnect from that station When set to PBBS, the custom text will be sent to the con­necting station and then the connection will automatically be transferred to your PBBS, if it is avail­able. If the PBBS is not available, the KAM Plus will disconnect from the station.

See also: ctext, pbbs

10

CODe [AMTOR | RTTY] [ITA2 | US | LCRTTY | APLINK | MARS]
Default AMTOR ITA2/RTTY ITA2]

This command allows you to select the alphabet used to send and receive RTTY and AMTOR. ITA2
uses the International Telegraph Alphabet Number 2, US selects the U.S. character set (not availa­ble in AMTOR), LCRTTY provides a complete upper/lower case character set, and APLINK uses the
full printable character set developed by G3PLX and W5SMM (currently used on APLINK BBS sys­tems). When set to MARS, special characters can be used as required by the Military Affiliate Radio
System. (See the MARS Feature section of this manual.)

COMmand

n

(n= $00 – $FF)

Default $03 (Ctrl-C)

This command sets the character used to enter the Command mode from the Convers mode, or to
exit from the Transparent mode. It also defines the lead-in character for non-packet mode direc­tives.

CONList ON | OFF
Default OFF/OFF

When ON, the KAM Plus will recognize only those packets received with a callsign that appears in
the BUDCALLS list. All other packets are completely ignored. When OFF, packets originating from
any station are accepted.

See also: budcalls

CONList [ON | OFF][NONE | {+|-} callsign | callsign2...] v8.2
Default OFF NONE

CONList is used to determine which stations (callsigns) may use your station for ANY purpose, in­cluding digipeating. When ON, the TNC will recognize only those packets received with a callsign
that appears in the CONList's list of callsigns; and you will not be able to connect to any station
that is not in the CONList. When OFF, the TNC will process all packets.

The maximum number of callsigns allowed in CONList is 10. Up to 10 callsigns may be entered at
once, using the format shown after the command name, and the new list of from 1 to 10 callsigns
will replace whatever list was there before. The CONList command can be used to add a single
callsign (+callsign), so long as there is room for the new callsign on the list (if there is not, the
TNC responds with EH? and returns you to the command prompt). Similarly, you can remove a

single callsign (-callsign) from the list. And to remove all items from the current list, enter CONL N.

A callsign entered without a SSID will match any SSID of that callsign. To match a specific SSID
only, enter the callsign with that SSID; for example, callsign-n, wheren= 0–15.

CONMode CONVERS | TRANS
Default CONVERS

This command sets the mode the TNC will be placed in AUTOMATICALLY when a connect occurs if
NOmode is OFF.

See also: canline, connect, convers, nomode, trans

11

Connect call1 [VIA call2,call3,...call9]
Immediate command

This command is used to initiate a PACKET connection to another station. Each callsign may have
an optional SSID specified as -nwheren= 1 to 15. Call2 through call9 are used to specify digi­peaters required to connect to a distant station.

This command can also be used to reconnect through a different set of digipeaters to a distant
station you are already connected to.

See also: conmode, conok, maxusers, nomode, retry, ring, streamsw, xmitok

CONOk ON | OFF
Default ON

When ON, connect requests from other TNCs will automatically be acknowledged. When OFF, a
connect request from a distant station will be answered with a <DM> packet, causing that station
to get a busy message from you. When this occurs, you will see a connect request message

on your terminal.

See also: conrnode, connect, intface, maxusers, monitor, nomode, users

CONPErm ON | OFF v8.2
Default OFF

Forces connection present stream to be permanent.

CONVers

Immediate command

This command will place your KAM in the Convers mode on the current I/O stream.

See also: k, command, stat

CPactime ON | OFF
Default OFF

When OFF and in the Convers mode, packets are transmitted when the SEndpac character is en­tered, or when Paclen is exceeded. When ON, packets are sent at periodic intervals determined by
PACTime.

See also: convers, cr, paclen, pactime, sendpac, trans

CR ON | OFF
Default ON

When ON the SENDPAC character (normally carriage return) is appended to packets send in Conv­ers Mode. When OFF, the SENDPAC character is not transmitted as part of the packet.

See also: lfadd, sendpac

12

CRAdd ON l OFF
Default OFF

When ON, a carriage return will be added to every carriage return received from your terminal be­fore being transmitted in RTTY, ASCII, AMTOR, G-TOR and PACTOR. When OFF, no extra carriage
returns are added by the KAM Plus.

See also: lfadd

CRSup ON l OFF
Default ON/OFF

When ON, every other carriage return will be suppressed when two or more carriage returns are
received with no data between them. When OFF, no carriage return suppression occurs.

See also: autolf, lfsup

CStamp ON | OFF
Default OFF

When ON, the daytime stamp is printed with all *** CONNECTED TO and *** DISCONNECTED
messages. When OFF, no daytime stamping of connects and disconnects occurs.

See also: connect, daytime, disconnect, mstamp

CText

This command sets a custom text message to be sent to any user who connects to your

text

(0 – 128 characters)

MYCALL

To clear the CTEXT enter a single % character (CT %).

See also: cmsg, connect

CW [n] (n= 5 – 99)
Default 20

This command places the KAM Plus in the CW Mode. Ifnis not specified, the speed set in
CWSPEED will be used for transmit and receive. Specifyingnwill allow you to enter the CW mode
at the desired speed. The KAM Plus will automatically adjust to copy stations within approximately
±20 WPM from the speed selected.

See also: canline, cwspeed, morse, pmode, prosign

CWAudio ON l OFF
Default ON

When ON, the AFSK Output of the KAM Plus HF port will provide Morse code with an on/off audio
tone. This can be used for automatic CWID when operating ARQ modes (G-TOR, PACTOR and AM­TOR) or for sending Morse code over an FM transceiver. You must also set the CWPTT command
ON for this to operate.

.

CWBand

n

(n= 10 – 1000)

Default 200

This sets the audio bandwidth for CW Operation. A small bandwidth will improve reception of CW
signals, but will be more difficult to tune.

13

CWFarnsw

Default 15

This commands sets the character speed used when operating CW and the CWSPEED is less than
CWFARNSW. Characters will be sent at this speed, and additional time will be placed between
characters to lower the CW word rate to your selected speed.

n

(n= 5 – 99)

CWId [EVERY | AFTER]
Default EVERY 0/EVERY 0

When operating PACKET, this command will cause a CWID to be transmitted periodically. When
set to EVERY, a CWID will be transmitted everynminutes. When set to AFTER, a CWID will be
transmitted ONCE afternminutes of no channel activity.

See also: arqid, cwidtext

CWIDText

Default DE

This command sets the text to be sent during a CWID or an automatic ARQID.

See also: arqid

CWPtt ON | OFF
Default OFF

When ON the PTT line from the KAM Plus HF port will be keyed when transmitting CW (ARQID.
CWID or CW Mode). When OFF, the PIT line will not be keyed. With this command OFF, CW mode
operation requires that your radio be in VOX operation and CW Mode and the CW key line from the
KAM Plus must be connected to your CW key jack on the radio.

text

mycall

n

(0 – 15 characters)

(n= 0 – 255)

CWSpeed

Default 20

This command sets the CW speed used when entering the CW mode. If this value is less than
CWFARNS, the KAM Plus will transmit CW using Farnsworth spacing.

See also: cw

CWTone

Default 750

This command sets the center frequency of the CW filter of the KAM Plus. It also sets the transmit­ted AFSK CW tone if CWAUDIO and CWPTT are turned ON.

CWWeight

Default 0

This command adds weighting to a transmitted CW signal. Normally a dash is three times the
length of a dot. If weighting is used, the dash will ben× 0.1 dot times longer than normal. For in­stance, ifnis set to 7 then a dash would be 7 × 0.1 (or 0.7) times longer than normal, making the
dash 3.7 times the length of the dot.

DAMa ON | OFF v8.2
Default OFF

n

n

n

(n= 5 – 99)

(n= 50 – 2000)

(n= 0 – 15)

DAMA Slave protocol used when ON and connected to DAMA Master.

14

DAMAChck

n

(n= v8.2

Default 18 (180 sec)

No activity time before protocol checks on DAMA link (10 sec).

DAYStr dayform
Default mm/dd/yy hh:mm:ss

This command sets the format for the date/time display. This display is used for all time stamps,
including the PBBS, KA-Node, MHEARD list, etc. The lower case characters m, d, y, h and s have
special meaning to this command and will be replaced with data from the software clock. The low­er case m will be replaced with the minutes the first time it appears after a lower case h. If h, m,
y, d, or s is specified as a single character, the corresponding date/time element will be displayed
as a single digit if the value is less than 10. Entering two characters will force a two digit display
for values under 10. If the month is entered as three characters (mmm), the month will be dis­played as the first three characters of the month name (APR). You may also enter any other text
you wish, allowing you to add such things as your time zone.

Caution: When entering real text into the display, ALL lower case m, d, y, h, and s characters WILL
be translated! Some samples of possible format strings and the resulting display

mm/dd/yy hh:mm:ss 02/18/93 11:30:00
d.m.y h:mm:ss 18.2.93 11:30:00
d.mm.yy h:mm 18.02.93 11:30
mmm d 19yy h:mrn CST FEB 18 1993 11:30 CST
TIME hh:mm DATE: mmm dd, 19yy TIME 11:30 DATE: FEB 18, 1993

DAytime yymmddhhmm[ss]
Default 01/01/93 00:00:00

This command sets or reads the real-time clock and software clock in the KAM Plus. The clock de­termines date and time display in conjunction with the CSTAMP, MHEARD, MSTAMP and
PBBS/Node messages. When entering the daytime digits to set the clock, enter in pure number se­quence with no spaces, dashes or slashes. Entering the seconds digits is optional, and if not en­tered, the seconds will be set to 00.

See also: cstamp, daytweak, daystring, mheard, mstamp

DAYTWeak

n

(n= 0 – 15)

Default 8

This command is used to tweak the software clock for accurate time keeping. Increasing the value
will slow the clock, decreasing the value will speed up the clock. Each count corresponds to 0.85
seconds increase or decrease per day. Ambient temperature will affect the clock to some degree.

DBldisc ON | OFF
Default OFF

When OFF, only one disconnect command needs to be given to terminate an unsuccessful connect
attempt. If you are actually connected, the normal disconnect sequence will occur. When ON, a
normal disconnect sequence will always occur. A second disconnect command would be required
to force a local disconnect independent of the retry counter.

See also: disconnect

15

DElete

Default $08 ()

This command sets the character to be used as the delete character. When this character is typed,
the last input character is deleted. The most common settings are $08 (backspace) and $7F (de­lete).

See also: bkondel

DIddle ON | OFF
Default ON

When ON, a diddle character is sent when no characters are available from the keyboard or buffer
during transmission in RTTY or ASCII Mode. In RTTY the diddle character is the LTRS character; in
ASCII the diddle character is a null. When OFF, a constant MARK frequency is transmitted.

DIGipeat ON | OFF
Default ON/ON

n

(n= $00 – $FF)

When ON, any packet received that has
will be retransmitted. Each Station included in the digipeat list relays the packet in the order speci­fied in the address field. Digipeating takes place concurrently with other KAM Plus operations and
does not interfere with normal connected operation of the station. To disable digipeat operations
(via

MYCALLorMYNODE

See also: hid, myalias, mycall, mygate, mynode

Disconne

Immediate command

This command will initiate an immediate command disconnect request on the current I/O stream.
When an acknowledgment is received, your KAM Plus will display the message *** DISCON-

NECTED. If you issue a second disconnect command before receiving the acknowledgment, your

KAM Plus will immediate enter the DISCONNECTED state, but this may leave the other station
thinking it is still connected.

See also: dbldisc, nowmode, retry, status

Disconnect MYPBBS

Issue this command if you want to cause the personal mailbox to issue a disconnect to the user of
the mailbox. D MYPBBS is what you should type, do not type the call entered in the mypbbs com­mand.

) turn this command OFF.

MYCALLorMYNODE

in the digipeat list of its address field

Disconnect MYNODE

x

may be any of the KA-Node circuits in use, designated by A, B, C, etc. This command will cause
the node to disconnect the stations linked through the node on the circuit specified. MYNODE
does not refer to the call entered in the MYNODE command, but is the actual characters to type.

x

(x= KA-Node circuit)

16

DISPlay [class]

This command will display a list of parameters in the KAM Plus. If you do not specify a class, all
parameters will be displayed. You may display one specific class of related parameters by specify­ing the class with the display command, The classes of parameters are:

(A)sync asynchronous port parameters (KAM Plus to computer)
(AM)tor parameters affecting AMTOR (ARQ and FEC) and NAVTEX/AMTEX Modes
(ASC)ii parameters affecting ASCII Mode
(C)haracter special KAM Plus characters
(CW) parameters affecting CW Mode
(G)tor parameters affecting G-TOR Mode
(I)d ID parameters
(L)ink parameters affecting packet link (KAM Plus to other TNC)
(M)onitor monitor parameters
(P)bbs mailbox parameters
(PT) parameters affecting PACTOR Mode
(R)tty parameters affecting RTTY Mode
(T)iming timing parameters
(X)tra some transmission related parameters, such as FSKINV

Individual parameters may be displayed by entering the command name followed by a carriage re­turn.

DWait

n

(n= 0 – 255)

Default 0

This value is used to avoid collisions with digipeated packets. The KAM Plus will waitn× 10 milli­seconds after last hearing data on the channel before it begins its own key-up sequence. When
this method of collision avoidance is used, the value is normally agreed upon by users in the local
area. Most PACKET operators are now using the PERSIST/SLOTTIME method of collision avoidance
and setting DWAIT to 0.

See also: persist, slottime

Echo ON | OFF
Default ON

When ON, characters received from the terminal are echoed back to the terminal. If you are see­ing double printing of characters you type, set this command OFF. The KAM Plus will not echo the
XOFF or XON characters to your terminal. ECHO is automatically disabled when in Transparent
Mode.

See also: bkondel, flow, xmitecho

EScape ON | OFF
Default OFF

When OFF, an escape character ($1B) will be sent to the terminal when one is received in a pack­et. When ON, the KAM Plus will send a dollar sign ($) to the terminal instead of the escape charac-

ter.

17

Fec [

xxxx[xxxxx

Immediate command

]]

This command sets the KAM Plus in FEC Mode. When the optional
KAM will call the specified station using SELFEC. The optional
ing:

AMTOR (476) SELCAL (4 characters, 4 digits or 5 digits)
AMTOR (625) SELCAL (7 characters or 9 digits)

Amateur Radio callsign – in this case, the KAM Plus will automatically create a unique AMTOR
625 SELCAL from the callsign and initiate a 625 SELFEC transmission.

See also: amtor, autostrt, canline, lamtor, pmode, txdfec

FIlter ON | OFF
Default OFF/OFF

When ON, this command will inhibit the printing of control characters ($00 – $1F) which may be
present in monitored packets. All control characters except carriage return ($0D) and line feed
($0A) will be filtered. This command does NOT affect receipt of control characters in packets re­ceived from a connected station when MONITOR or MCON is OFF. When operating RTTY or ASCII,
this will also inhibit printing of control codes.

See also: monitor

FLow ON | OFF
Default ON

xxxx

xxxx[xxxxx

[xxxxxj can be any of the follow-

] is specified, the

When ON, any character entered from the terminal will stop output from the KAM Plus to the ter­minal until the current line or packet is completed (by SENDPAC, PACLEN, or PACTIMEj. Cancel­ing the current input or typing the REDISPLAY character will also cause output to resume. When
OFF, received data will be inter-leaved with keyboard entry. If you use a split screen terminal pro­gram you should have FLOW OFF and ECHO OFF to allow received data to be displayed while you
type into the KAM Plus' type-ahead buffer.

See also: canline, canpac, cpactime, echo, paclen, redisplay, sendpac, xmitecho

FRack

Default 4/4

After transmitting a packet requiring acknowledgment, the KAM Plus waits FRACK seconds before
incrementing the retry counter and sending the packet again. If the retry count is exceeded, the
current operation is aborted. If the packet address includes relay-requests (digipeaters) the time
between retries is adjusted to FRACK × ((2 ×m) + 1) wheremis the number of intermediate re­lay stations. The FRACK timer begins when PTT is released (the packet has been sent) and is sus­pended when data carrier from the radio is present, or when your station is transmitting.

See also: connect, resptime, retry

FREequal

Default 20

n

n

(n= 1 – 15)

(n= v8.2

Maximal number of bits in error when scanning for free signal.

18

FSkinv ON | OFF
Default OFF

This command controls the polarity of the FSK output on the HF port of the KAM Plus. When OFF,
MARK is open-collector and SPACE is ground. When ON, the polarity of MARK and SPACE is re­versed.

FUlldup ON | OFF
Default OFF/OFF

When OFF, the presence of a received signal will prevent the KAM Plus from transmitting to avoid
collisions. When ON, the VHF modem is run full-duplex and the presence of a received signal will
not inhibit transmission. Full-duplex may be especially useful for split-frequency operations.

FUlldup {ON | OFF | LOOPBACK} v8.2
Default OFF/OFF

When OFF (i.e., half duplex), the data carrier detect signal is used as a packet collision avoidance
signal. When ON, the modem is run full duplex and carrier detect does not inhibit transmission.
The full duplex mode may be useful especially for satellite operations using duplex radio setups.
Full duplex should not be used unless both you and the station you are communicating with have
full duplex capability. LOOPBACK is the same as half duplex (i.e., FULLDUP OFF) as far as protocol
is concerned, but the receive circuit is still active; this allows you to connect a simple wire between
the transmit and receive pins on the radio connector to verify operation of the modem circuitry.

GMON v8.0

Immediate command

The GMON command places the KAM in the Monitor Mode, allowing you to monitor G-TOR QSOs.
To exit the GMON Mode and return to the command prompt, type [Ctrl-C][X].

GPShead

Default blank

This command determines which GPS NMEA sentences will be stored in the LT buffers.ndeter­mines which which buffer will be used to store the data (1 – 4) and
header.

When the string is received, the KAM Plus will store the up to 128 characters in the associated LT.

GPSInit

Default blank

This command establishes a string which will be sent to the attached GPS unit upon power-up.
This may be useful to configure your GPS unit to provide only the information you require. Some
GPS units may require more then one sentence; consult your GPS unit manual. To send more than
one, enter a [Ctrl-N] at the end of each sentence and the KAM Plus will send a CR/LF sequence to
the GPS unit.

n string

string

(n= 1 – 4) (

Initial text sent to terminal in GPS Mode (string up to 128 characters) v8.0

string

up to 8 characters) v8.0

string

is a NMEA sentence

19

GSCAN

Immediate command

GSCAN is a general scan function that will sample the audio signal applied at the HF port of the
KAM Plus. The signal is sampledrtimes per second, and the resulting binary data is sent to the
computer through the serial port. The first sample will be in the Most Significant Bit (MSB) of the
byte. Valid sample rates are from 1 to 4800 samples per second. Them,s, andfvalues, if speci­fied, set the MARK frequency, SPACE frequency and demodulated filter output bandwidth. If not
specified,mdefaults to the MARK command setting,sdefaults to the SPACE command setting,
andfis set to the HBAUD setting for the HF port (normally 300). NOTE: You must set MAXUSERS
to n/0 (disabling the VHF port) to use the GSCAN mode.

We have provided a program for PC computers which allows monitoring of G-TOR ARQ links using
the GSCAN function. Documentation for this program can be found on the diskette provided in a
file called "GMON.DOC".

r,m,s,f

v7.0

GTDown

Default 6

Sets the number of consecutive bad frames received before switching to the next lower speed.

GTErrs

Default 40

Sets the time-out attempts for G-TOR. When attempting to link with another station, the unit times
out afternattempts without a response. When already linked, reception ofnconsecutive faulty
frames results in a timeout.

GTFuzzy

Default 3

Sets the number of bits in a data acknowledgment that may be corrupted.

GTor [
Immediate command

Entering GTOR with no parameters will place the KAM Plus in G-TOR Standby, allowing you to re­spond to an incoming link request or transmit a CQ or other broadcast. If you also have MONITOR
ON, you can monitor FEC G-TOR broadcasts. By using the optional callsign Parameter, this com­mand will initiate a link attempt with station
break an existing link, with the [Ctrl-C][D] directive, which will leave you in the G-TOR Standby
Mode, or with the [Ctrl-C][X] directive which returns you to PACKET Mode (cmd: prompt). NOTE:

If ARQBBS is on, you cannot transmit FEC and you will not be able to monitor FEC.

n

n

n

xxxxxxxxxx

(n= 2 – 30) v7.0

(n= 30 – 255) v7.0

(n= 0 – 3) v7.0

] v7.0

xxxxxxxxxx

. You can discontinue the link attempt, or

GTTries

Default 2

Sets the maximum number of attempts to speed up. If unsuccessful afternattempts, the KAM
Plus will return to its previous G-TOR speed until it receives GTUP consecutive good frames.

GTUp

Default 3

Sets the number of consecutive good frames received before switching to 300 baud operation.

n

n

(n= 0 – 9) v7.0

(n= 2 – 30) v7.0

20

HBaud

n

(n= 50 – 300 for HF; 300, 400, 600 or 1200 for VHF)

Default 300/1200

This command sets the baud rate used by the KAM Plus for transmission of data over the radio
link. It is not related to the terminal baud rate (set by ABAUD). HF PACKET is normally operated at
300 baud, and VHF PACKET is most commonly found at 1200 baud. FCC rules currently limit the
maximum baud rate to 300 when operating below 28 MHz. NOTE: 300 baud on VHF uses different
tones than 300 baud on HF.

HEAderln ON | OFF
Default ON

When ON, a carriage return is Output to the terminal between the header and text of monitored
packets. This allows the packet header and time stamp (if on) to be displayed on one line, with the
packet text displayed below it on the next line(s). When receiving connected packets, no header is
displayed if MONITOR or MCON is OFF.

See also: cstamp, mcon, monitor, mstamp

Help [cmd] ? [cmd]
Immediate command

The HELP command will display a table of all available commands. If you specify a command name
after the HELP command (e.g. HELP TXDELAY) the KAM Plus will display a one-line description of
the command. The command HELP HELP will display a one-line description of ALL commands.

HId ON | OFF
Default ON/ON

When ON, an ID packet will be sent every 9.5 minutes if packets are being digipeated through
your Station or routed through your KA-Node, or if your PBBS is used. When OFF, no periodic ID
packets will be transmitted.

See also: digipeat, id, myalias, mygate, mynode, mypbbs, numnodes, pbbs

HText

text

(0 – 33 characters)

This command is used to set the hierarchical portion of your packet address. Your KAM PBBS will
not forward (or reverse forward) any messages to another BBS if this command is empty and
PBPERSON is OFF. We suggest you read the section on the Kantronics PBBS to become familiar
with BBS operation and hierarchical addressing. You should ask your local BBS SysOp if you are
unsure of the proper hierarchical address for your station.

Id

Immediate command

When this command is entered an identification packet will be transmitted on the current I/O port.
The ID packet consists of your station identification as set in MYCALL. The MYCALL will be ap­pended with "/R", MYALIAS callsign (if any) appended with "/D", MYGATE (if any) with "/G", MY-
NODE (if enabled) with "/N" and the MYPBBS callsign (if enabled) with "/B".

See also: hid, unproto

21

INtface TERMINAL | NEWUSER | BBS | KISS | HOST | GPS
Default NEWUSER

When set to NEWUSER, a basic set of only 30 commands is available to simplify operation, When
set to TERM, the full command set of the KAM Plus is available (over 200 commands). Setting this
command to BBS will prevent certain messages from being sent to the terminal (*** connect

request, *** FRMR, etc). This is provided for those running a full service BBS to prevent these

messages from appearing in received text. Setting this command to KISS will enable the KISS
code as specified by Phil Karn (KA9Q) for use with TCP/IP or other KISS programs in your comput­er. Setting this command to HOST will enable the Kantronics Host mode for use with special host
programs such as Host Master.

v8.0

When this command is set to GPS, the KAM Plus will enter GPS Mode upon power up. Data from
the serial port will be parsed according to the GPSHEAD command, text will be placed into the LT
buffers, and beacons will be transmitted according to the setting of the BLT commands.

To have the KAM exit GPS Mode, connect a PC or terminal to it and issue three [Ctrl-C] characters.

NOTE: After changing the INTFACE command, you may need to do a soft reset for the new mode
to take effect.

See also: pmode

INtface Terminal | Newuser | BBS | KISS | Host | GPS | Modem v8.2
Default NEWUSER

When set to Newuser, the TNC will operate with a standard terminal or computer running a termi­nal emulation program with a limited command set available. When set to Terminal, the full com­mand set of the TNC is available. When set to BBS, the TNC deletes certain messages (i.e.

*** connect request, *** FRMR, etc.) for greater compatibility with full-service BBS pro-

grams such as W0RLI, WA7MBI, CBBS, etc. When INTFACE is set to KISS mode of operation,
users interact with the TNC using software that implement the KISS code specified by Phil Karn
(for more information, see the KISS Operation section of this manual). When INTFACE is set to
Host, the TNC will talk to the attached computer using the Kantronics HOST mode and users com­municate with the TNC using "host mode" software (for more information, see HOST Operation
section of the "User's Guide" manual).

When INTFACE is set to GPS, the TNC will enter GPS mode upon power up. Data from the serial
port will be parsed according to the GPSHEAD command, text will be placed into the LT buffers,
and beacons will be transmitted according to the setting of the BLT commands.

When INTFACE is set to Modem, the TNC mirrors at the RS-232 port what it receives at the radio
port (for more information, see the "modem mode" in the Modes of Operation chapter).

To have the TNC exit GPS Mode, connect a PC or terminal to it and issue three [Ctrl+C] characters
(see COMMAND for details).

For instructions on exiting KISS, HOST and MODEM modes, see appropriate sections of the "modes
of operation" of the "User's Guide" manual.

22

INVert ON | OFF
Default OFF

When ON, signals received in RTTY, ASCII or AMTOR, and signals transmitted using AFSK are in­verted. While in RTTY, ASCII or AMTOR mode, entering a [Ctrl-C][I] directive will toggle the inver­sion ON and OFF.

K

Immediate command

This command will place the KAM Plus in the Convers mode on the current I/O stream. It is syno­nymous with the CONVERS command.

See also: convers

KNtimer

n

(n= 0 – 255)

Default 51

If there is no activity through a KA-Node circuit fornminutes, the KA-Node will disconnect both
the input and output sides of the circuit. Setting KNTIMER to 0 disables this feature.

See also: rnrtime

KNXcon ON | OFF
Default OFF

When OFF, the KA-Node will not allow the Xconnect command (cross connecting). When ON, the
Xconnect command is enabled, allowing users to cross-connect from the one port of the KAM Plus
to the other port.

See also: numnodes, mynode

Lamtor

Immediate command

This command places the KAM Plus in the Listen AMTOR mode. The KAM Plus will receive FEC,
SELFEC or ARQ signals. The KAM Plus will not transmit when operating in LAMTOR mode.

See also: amtor, fee, misschar

LCok ON | OFF
Default ON

When ON, upper and lower case characters will be sent to the attached terminal. When OFF, lower
case character are translated to upper case before being sent to the terminal. This case translation
is disabled in Transparent Mode.

LCStream ON | OFF Not in v8.2
Default ON

When ON, lower case characters may be used in stream switching. When OFF, stream switching
requires upper case characters.

See also: status, streamsw

23

LFadd ON | OFF
Default ON/OFF

When ON, a line feed will be appended to every carriage return transmitted over the radio. When
OFF, no line feeds will be added to the transmitted data. In this command the value before the /
applies to the non-packet modes (RTTY, ASCII, AMTOR, G-TOR and PACTOR) and the value after
the / is for PACKET (HF and VHF).

See also: cradd

LFSup ON | OFF
Default ON/OFF

When ON, received line feeds are removed from the data and are not sent to the attached termi­nal. When OFF, received line feeds are sent to the terminal. In this command the value before the
/ applies to the non-packet modes (RTTY, ASCII, AMTOR, G-TOR, and PACTOR) and the value after
the / is for PACKET (HF and VHF).

See also: autolf, crsup

LList ON | OFF
Default OFF

When ON, stations in the SUPCALLS list attempting to connect or digipeat through your station will
be ignored.

See also: supcalls

LList ON | OFF | NONE | {+|-}callsign| callsign1,callsign2 v8.2
Default OFF NONE

LList is used to determine which stations (callsigns) may NOT use your station for ANY purpose,
including digipeating. When LList is ON, the TNC will NOT recognize those packets received with
any callsign that appears in the LList's (lid) list of callsigns. In addition, when LList is ON, you will
not be able to connect to any station that is on that list.

The maximum number of callsigns allowed in LList is 10. Up to 10 callsigns may be entered at
once, using the format shown after the command name, and the new list of from 1 to 10 callsigns
will replace whatever list was there before. The LList command can be used to add a single call­sign (+callsign), so long as there is room for the new callsign on the list (if there is not, the TNC
responds with "EH?" and returns you to the command prompt). Similarly, you can remove a single

callsign (-callsign) from the list. And to remove all items from the current list, enter LList None.

A callsign entered without a SSID will match any SSID of that callsign. To match a specific SSID
only, enter the callsign with that SSID; for example, callsign-n, wheren= 0–15.

LOwtones ON | OFF
Default OFF

When ON, the European low-tones are used with 170, 425, or 850 shift RTTY. These tones are:
Space = 1275 Hz, Mark = 1445 Hz, 1700 Hz, or 2125 Hz. When OFF, the Mark frequency will be
2125 Hz and the Space will be above the Mark frequency by the selected shift (170, 425, or 850).

24

LT

n text

Default blank

This command fills the specified Locate Text (LT) buffer with text. n specifies which buffer to use
(1 – 4). If GPSHEAD is set for this buffer and if the INTFACE command is set to GPS, the buffer

contents will be updated automatically by the GPS data.

LTPndest [via call1[,call2,...]] (n= 1 – 4) v8.0

Default GPS/GPS

(n= 1 – 4) (

text

up to 128 characters) v8.0

This command sets the destination callsign and the digipeaters used to transmit the LT strings.
specifies which string (1 – 4). The destination callsign defaults to GPS; however, you may want to
change it to APRS, LOCATE, POSIT or some other destination. Up to 8 digipeater callsigns may be
specified. The values before the / apply to the HF port and the values after the / apply to the VHF
port.

LTRackn[LT1] [LT2] [LT3] [LT4] [SYSOP] [TIME]

Default 0

This command allocates memory for a special tracking buffer used to store LT messages.ndefines
the amount of memory (kBytes) set aside for the LT messages (limited by available RAM). Specify­ing the LT1 through LT4 parameters determines which message will be stored in the tracking buf­fer. If SYSOP is specified, only a user with SYSOP privileges may access the tracking buffer, and if
TIME is specified, a time stamp will be appended to the front of the LT message.

The LTRACK buffer is accessed by connecting to the mailbox (MYPBBS) and using the LTRACK
command.

MAll ON | OFF
Default ON/ON

When ON, monitored packets include "connected" packets between other stations. If OFF, other
stations connected packets will not be monitored.

n

See also: monitor

MARk

Default 1600

This command sets the mark frequency for HF PACKET operation, and also sets the mark frequen­cy used for non-packet modes when the SHIFT command is set to MODEM. The MARK command
must be set less than the SPACE command.

See also: shift, space

MAXframe

Default 1/4

MAXFRAME sets an upper limit on the number of unacknowledged packets which can be outstand­ing at any one time. The KAM Plus will send MAXFRAME number of packets in a single transmis­sion, if they are available.

See also: paclen

n

n

(n= 50 – 4000)

(n= 1 – 7)

25

MAXUsers

n

(n= 0 – 26)

Default 10/10

This command sets the maximum number of streams (channels) available for PACKET connections.
Each stream is designated by a stream letter beginning with "A". With the default value of 10,
streams are lettered A – J for each port (HF and VHF). In order to change the value of MAXUSERS,
you must spell out the complete command name. This will cause the KAM Plus to perform a soft
reset. If either the HF or VHF value is 0, that port of the KAM Plus will be disabled. If the HF side
is 0, attempting to enter a non-packet mode will produce an INVALID MODE error message.

Setting MAXUSERS to 0/0 is a special case which will allow only ONE connect at a time, but the
connect may be on either HF or VHF. This is provided as a special case for those using BBS sys­tems on two frequencies, but can only accept one connect at a time.

See also: status, streamsw, users

MBeacon ON | OFF
Default ON/ON

When ON, packets addressed to BEACON or ID will be monitored. When OFF, these packets will
not be monitored.

See also: beacon, id, monitor

MCOM ON | OFF
Default ON/ON

When ON, monitored packets include connect frames <C>, disconnect frames <D>, disconnected
mode frames <DM> and unnumbered acknowledgments <UA>. In addition, the following informa­tion will be added to monitored information frames as appropriate:

<UI> Unconnected Information frame
<Is> Information frame (connected); s = send sequence number

See also: ax25l2v2, monitor, mresp

MCon ON | OFF
Default OFF/OFF

When OFF and connected to another station, you will see only data being sent to you by the other
station. When OFF and not connected, normal monitoring will occur based on the settings of the
other "monitor" commands. When ON, all eligible packets will be monitored whether you are con­nected or not.

See also: monitor, streamca, streamev

MHClear Not in v8.2

Immediate command

This command clears the stations heard log.

See also: mheard

26

MHEADer {ON | OFF} * v8.2
* Multi-port commend on multi-port devices
Default ON/ON

When ON, the headers are displayed for all monitored packets.

When OFF, headers are not displayed and only data is output to the terminal. Since only I and UI
frames have data, only these frames are displayed.

 To avoid confusion when MHEADer is OFF, use BUdlist to restrict the monitored data.

See also: monitor, mcon, mbeacon, mall, suplist, budlist

MHeard [S | L ]
Immediate command

This command will display a list of stations heard by your KAM Plus recently. An asterisk, *, indi­cates that the station was heard through a digipeater The date/time the station was last heard is

also displayed. If the S option is used (MH S), only the callsigns of the stations heard will be dis­played. If the L option is used, all call signs contained in the received packet, including digipeater
paths, will be displayed.

See also: daytime, mhclear

MHeard [Short | Long | Clear] v8.2
Immediate command

This command causes display of a list of stations heard. An asterisk, *, indicates that the station
was heard through a digipeater. The date/time the station was last heard is also displayed.

If the S option is used, i.e. MH S, then only the callsigns of the station heard will be displayed.

If the L option is selected, all callsigns contained in the received packet including the digipeater
paths, are displayed. For example (on port 1):

N0GRG/I > ID 10/16/88 14:31:30 VIA TOP,KCI,W0XI

Here, your station heard N0GRG transmitting an ID packet. N0GRG was also using the digipeating
path TOP, KCO, W0XI. If your station heard N0GRG via one of these other stations, an asterisk
would show by the call or alias of the last digipeater heard. When listed short, the asterisk would
show beside N0GRG.

 Whenever PASSAll is ON, packets will not be checked for errors and no additions will be made

to the MHeard list.

If the C option is used, the list is cleared.

See also: daytime, passall

27

MIsschar

n

(n= $00 – SFF)

Default $20

This command defines the character to be sent to the terminal when operating in AMTOR or NAV­TEX and the received character is invalid or unrecognized.

See also: amtor, fee, lamtor, navtex

Monitor ON | OFF
Default ON/ON

When ON, unconnected packets will be monitored unless prohibited by SUPLIST, BUDLIST, CON-

LIST, LLIST or PID. The MONITOR command acts as a master switch for the MALL. MCOM,
MCON, MRESP, MRPT and MXMIT commands. The addresses in the packet are displayed along

with the data portion of the packet. Callsigns are separated by a ">" and the Secondary Station
Identifier (SSID) is displayed if it is not 0. If any data is contained in a monitored packet which is
not described in the AX.25 protocol, it is displayed in curly braces on the header line. All monitor
functions are disabled in the Transparent Mode. When OFF, you will only receive data from stations
connected to you.

When MONITOR is ON for the HF port, the KAM Plus will copy ARQ or FEC PACTOR signals in the
PACTOR Standby Mode, and will also copy AMTOR FEC signals in the G-TOR Standby Mode. You
may also monitor data sent to your PBBS in AMTOR, G-TOR, or PACTOR if the MONITOR command
is ON for the HF port.

See also: budlist, conlist, headerin, llist, mall, mbeacon. mcom, mcon, mresp, mrpt, mstamp,
mxmit, pid, streamca, streamev, suplist

MORse code TX RX

Where: code is entered as a combination of * and - characters; TX represents a keyboard charac­ter entered in hex or decimal; and RX denotes the character(s) displayed upon reception, entered
in hex, decimal, or two alpha characters.

This command is used to define the desired keyboard character and display character(s) represent­ed for each code listed in the table below. Only those codes listed may be defined using the
MORSE command; standard Morse codes may not be redefined.

If you try to define a previously defined code, you will get the message TX CHARACTER ALREADY

DEFINED. In order to delete an entry, use the command MOR 0 0 to clear the code, and then re-

define it. Refer to the ASCII chart at the end of this manual for a listing of hex codes. Codes avail­able for definition by the MORSE command are:

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