Video 7 MasterModem User manual
MasterModem
TABLE
OF
CONTENTS
GETTING
STARTED
5
Connecting
the
MASTER
MODEM
5
Loading
MODEM
MASTER
Software
5
The
Operations
Menu
5
SYSTEM
PRESETS
6
Screen
Colors
6
Status
Line
6
Character
Color
6
Background
Color
7
Border
Color
7
Communication
Parameters
7
Saving
System
Presets
7
Return
to
Operations
Menu
7
DISK
OPERATIONS
8
Disk
Directory
8
Disk
8
Disk
Directory
8
Formatting
a
Disk
8
Read
Disk
Status
9
Renaming
a
File
9
Copying
a
File
9
Scratching
a
File
10
PHONEBOOK
OPERATIONS
10
Editing
the
Phonebook
10
Editing
11
Adding an
Entry
11
Deleting
an
Entry
12
Saving
an
Updated
Phonebook
12
Loading
a
Phonebook
12
MODEM
OPERATIONS
13
.
Auto
Dial
Using
the
Keyboard
13
Manual
Dialing
Using
the
Telephone
13
ON
LINE
14
Function
Key
Definitions
14
Exiting
From
One
Line
16
Answering
a
Call
16
BUFFER
OPERATIONS
17
Viewing
the
Buffer
on
the
Screen
17
Printing
a
Buffer
17
Saving
a
Buffer
to
Disk
17
Loading
a
Buffer
From
Disk
17
Erasing
the
Buffer
18
UPLOADING
AND
DOWNLOADING
19
What
Uploading
and
Downloading
Mean
19
Upload/Download
Mode
Versus
RCV
Buffer
20
Downloading
With
CBM
(Punter)
Protocol
20
Downloading
With
X-Modem
Protocol
22
Uploading
With
X-Modem
Protocol
25
Summary
of
X-Modem
Upload/Download
Commands
27
Exchanging
Programs
Directly
With
Another
64
27
Summary
of
64-to-64
Upload/Download
Commands
28
MISCELLANEOUS
29
QUICK
START
CHECK
LIST
31
Default
Presets
31
Writing
and
Modifying
Your
Own
Programs
31
ModemMaster
Software
Midwest
Micro
has
developed
this
state-of-the-art
telecommunications
program
for
the
Master
Modem
to
provide
you
with
the
finest
telecommunications
possible.
This
software
will
dial
the
phone
number
of
any
bulletin
board
system
using
the
universal
pulse
dialing
system.
Numbers
may
be
dialed
automatically
from
a
software
"phonebook,"
which
is
so
complete
that
it
even
stores
and
automatically
enters
all
communications
parameters
and
your
password.
In
addition,
you
may
choose
to
dial
automatically
from
the
keyboard
or
dial
manually
using
your
own
telephone.
As
an
added
bonus,
you
also
have
UPLOAD/DOWNLOAD
capability
in
two
widely
used
protocols:
X-modem
and
Punter/CBM.
Now
you
can
quickly
and
easily
exchange
software
with
others.
And,
you
have
an
on-line
24,000
byte
buffer
in
which
to
"capture"
information
from
any
source,
and
either
review
and
edit
it
on
the
screen,
save
it
to
your
1525
compatible
printer,
or
save
it
to
your
1541
disk
drive
for
later
review/editing
or
printing.
For
convenience,
you
have
the
ability
to
perform
disk
functions,
such
as
formatting
a
disk
and
displaying
a
directory
from
within
the
program.
For
those
who
can't
wait
to
dive
in,
please
turn
to
the
quick-start
section.
If
you
are
new
to
telecommunications
or
computing
in
general,
you
should
postpone
your
first
phone
contact
until
you
work
your
way
through
the
manual.
It
will
guide
you
through
each
section
in
the
order
that
a
beginner,
or
even
an
old
pro,
should
follow
the
first
time.
SECTION
1
-GETTING
STARTED
1.1
CONNECTING
THE
MASTER
MODEM
1.
TURN
OFF
THE
POWER
TO
YOUR
COMMODORE
64
NOW!
2.
With
the
LABEL
SIDE
UP,
insert
your
MASTER
MODEM
gently
into
the
User
port
of
your
Commodore
64.
The
User
port
is
the
port
on
the
left
side
of
the
computer
(when
viewed
from
the
front).
This
is
the
port
under
the
word
COMMODORE.
3.
Remove
the
telephone's
modular
plug
from
its
socket
at
the
wall
receptacle.
Connect
the
free
end
to
the
jack
in
your
MASTER
MODEM
marked
PHONE.
Set
the
VOICE/DATA
switch
to
the
VOICE
position.
Set
the
CARRIER
switch
(the
one
marked
O-C-A)
to
C.
The
C
position
allows
the
modem
master
software
to
automatically
control
the
Originate
and
Answer
modes.
If
using
other
software,
you
will
have
to
make
the
selection
manually
(either
O
or
A).
4.
Connect
one
end
of
the
modular
cord
supplied
with
your
MASTER
MODEM
to
the
now
empty
telephone
wall
jack,
and
the
other
end
to
the
jack
in
your
MASTER
MODEM.
1.2
LOADING
MODEM
MASTER
SOFTWARE
Turn
on
your
computer
and
1541
disk
drive.
Insert
the
MODEM
MASTER
disk
and
type
the
following:
LOAD
"*",
8
then
press
return.
After
the
cursor
returns
and
the
screen
shows
READY,
enter:
RUN
and
press
RETURN.
1.3
THE
OPERATIONS
MENU
In
a
few
moments,
you
will
see
the
title
screen,
and
after
a
pause,
the
operations
menu.
This
"operations"
menu
is
the
main
menu
of
the
MODEMMASTER
program.
From
it
you
can
get
to
any
other
area
of
the
program.
The
following
sections
will
guide
you
through
your
use
of
each
of
the
various
operations
areas
of
MODEMMASTER:
Modem
Operations
Buffer
Operations
Phonebook
Operations
Disk
Operations
System
Presets
Upload/Download
SECTION
2
—
SYSTEM
PRESETS
To
access
the
System
Presets
menu,
press
the
5
key
at
the
top
of
the
keyboard
(Not
the
F5
key!).
It
is
not
necessary
to
press
RETURN.
Another
way
to
return
to
the
operations
menu
is
to
press
RUN/STOP
key
from
any
other
menu
within
the
ModemMaster
Software
program.
Go
ahead
and
try
it
out.
Press
5
again
to
return
to
the
System
Presets
menu.
2.1
SCREEN
COLORS
Option
1
of
the
system
preset
menu
allows
you
to
change
the
colors
of:
1.
Status
Line
This
is
the
line
across
the
top
of
the
screen
that
looks
like
this
RCV
DPX VUE
It
keeps
you
informed
of
the
"Status"
of
the
receive
buffer,
whether
Duplex
is
set
on,
and
whether
you
are
"Viewing"
characters
from
the
buffer
or
are
on-line
with
modem.
More
about
this
later!
Press
the
1
key
at
the
top
of
the
keyboard
to
choose
a
color
that
is
easy
on
the
eyes.
2.
Character
color
Pressing
the
2
key
will
change
the
color
of
the
text
on
the
screen.
Choose
this
color
and
the
background
color
carefully,
as
these
two
colors
will
determine
how
"readable"
the
data
on
your
screen
will
be.
3.
Background
Color
Press
the
3
key
to
select
a
background
color
that
is
easy
on
the
eyes.
4.
Border
Color
Use
the
4
key
to
choose
a
suitable
border
color.
Once
again,
the
border
color
should
be
easy
on
the
eyes.
You
may
prefer
to
have
an
invisible
border,
in
which
case,
select
the
same
color
for
the
border
as
you
did
for
the
background.
When
you
are
satisfied
with
the
colors
you
have
chosen,
press
RETURN.
2.2
COMMUNICATIONS
PARAMETERS
The
present
values
of
the
Communications
Parameters
are:
Baud
Rate
Duplex
Word
Size
Stop
Bits
Parity
Linefeeds
Delete
Key
300
Full
8
1
No
Off
Backspace
For
most
applications,
these
preset
values
will
be
correct.
Since
dialing
from
the
phonebook
will
automatically
change
these
values,
you
probably
will
not
have
much
occasion
to
use
this
feature.
However,
should
you
wish
to
modify
these
preset
values
you
may
do
so
by
pressing
2.
You
will
be
shown
the
current
values
which
are
highlighted.
Use
your
cursor
keys
to
scroll
up
or
down
until
the
parameter
you
wish
to
change
is
highlighted.
If,
for
example,
you
wish
to
have
the
delete
key
function
as
a
"Delete"
key
rather
than
a
"Backspace"
key
use
the
cursor
down
key
to
highlight
the
[DEL]
key
selection.
Press
RETURN.
The
entire
line
will
now
be
enclosed
in
an
"editing
window."
Use
the
cursor
right
and
cursor
left
keys
to
highlight
your
choice.
Press
RETURN
to
accept
your
choice.
Return
to
the
system
presets
menu
by
selecting
the
"exit"
option
and
press
RETURN.
2.3
SAVING
SYSTEM
PRESETS
When
you
are
asked
if
you
want
to
save
the
presets,
press
Y.
Your
ModemMaster
Software
program
will
then
have
these
new
values
each
time
you
load
it,
until
you
change
them
again.
2.4
RETURN
TO
OPERATIONS
MENU
Press
4
or
RUN/STOP
or
RETURN
to
return
to
the
operations
menu.
7
SECTION
3
—DISK
OPERATIONS
Choosing
4,
Disk
Operations,
from
the
Operations
Menu
will
allow
you
to
view
the
disk
directory,
scratch
files,
change
file
names
and
even
format
a
disk,
all
from
within
the
ModemMaster
Software
program.
This
feature
is
especially
important
if
you
have
forgotten
to
format
a
disk
and
you
have
a
buffer
full
of
data
you
want
to
save.
3.1
DISK
DIRECTORY
First
use
option
1,
disk
directory,
to
verify
which
disk
is
in
your
drive.
You
will
see
the
disk
name
displayed
across
the
top,
with
the
file
size,
file
name,
and
file
type
displayed
for
each
file
on
the
disk.
At
this
time
you
should
make
a
note
of
the
name
of
any
file
you
wish
to
work
with.
For
instance
if
you
wish
to
view
a
file
which
you
previously
saved
and do
not
recall
the
name
it
was
saved
under,
use
this
option
to
find
the
name
of
the
file.
Once
you
know
the
file's
name,
you
may
load
it
into
the
buffer
for
review
or
printing,
or
perform
other
operations
on
that
file.
3.2
DISK
The
following
is
a
list
of
disk
operations
which
may
be
performed:
TYPE
THIS:
DISK
OPERATIONS
[RETURN]
Read
Disk
status
$[RETURN]
Directory
SO:filename
Scratch
a
file
RO:newname=oldname
Rename
file
CO:newfile=oldfile
Copy
old
file
into
a
file
called
File
NO:diskname,01
Formats
a
disk with
the
name
diskname
and
an
ID
of
01.
3.3
DISK
DIRECTORY
The
directory
command
will
allow
you
to
examine
the
contents
of
a
disk
in
your
drive.
This
can
be
very
handy
when
choosing
a
file
to
upload!
To
use
this
command,
enter
a
DOLLAR
SIGN
($
=
Shifted
4),
and
press
RETURN.
A
directory
listing
of
all
files
on
drive
8
will
be
displayed!
3.4
FORMATTING
A
DISK
Probably
the
command
you
will
use
most
is
the
format
command.
WARNING
—
USE
OF
THIS
COMMAND
WILL
ERASE
ALL
DATA
FROM
A
DISK!
Use
a
blank
disk.
DO
NOT
use
the
ModemMaster
Software
disk.
8
To
use
the
format
command,
type:
NO:Disk
Name,
ID
where
the
disk
name
is
the
name
you
want
to
call
your
disk
and
ID
is
a
2
character,
unique
disk
identifier.
It
may
consist
of
two
numbers,
two
letters,
or
one
of
each.
The
formatting
operation
should
take
around
80
seconds.
When
it
is
complete,
list
the
directory.
You
should
see
the
disk
name
and
ID
across
the
top
of
the
screen
with
"664
blocks
free"
directly
below
it.
If
you
do
not
see
this
and
the
red
light
is
flashing,
use
the
"read
disk status"
command
to
read
the
error
channel.
(Refer
to
your
1541
drive
manual
for
details).
3.5
READ
DISK
STATUS
This
command
is
executed by
simply
pressing
RETURN
(with
no
other
keystrokes)
on
the
command
line
at
the
top
of
the
"Disk
Command
Channel"
screen.
This
will
tell
you
what
type
of
error
has
occurred
to
cause
the
right
light
to
flash.
Refer
to
your
1541
drive
manual
for
an
explanation
of
the
causes
of
these
error
messages.
3.6
RENAMING
A
FILE
To
give
a
file
a
new
name,
type:
RO:newname=oldname
This
will
change
the
old
name
to
the
new
name
on
the
same
disk.
The
file
contents
will
not
be
altered
or
copied,
only
the
name
will
be
changed.
This
command
allows
you
the
convenience
of
assigning
temporary
filenames
while
on-line,
such
as
"1", "2",
"3",
or
"TEMP",
and
later
changing
the
names
to
more
appropriate
or
descriptive
ones
later
when
you
have
had
time
to
review
the
files.
Be
sure
you
do
NOT
leave
any
spaces
around
the
"="
character,
or
the
oldfile
will
not
be
found.
3.7
COPYING
A
FILE
This
command
allows
you
to
back
up a
file
onto
the
same
disk.
You
may
wish
to
do
this
so
that
you
have
"spare"
copy
or
so
that
you
may
edit
the
contents
differently.
To
use
the
copy
command,
type:
CO:newfile=oldfile
When
the
copy
command
is
through
you
will
have
two
copies
of
the
same
file
on
the
same
disk
under
two
different
names.
Verify
this
using
the
directory
command.
3.8
SCRATCHING
A
FILE
After
a
while
you
will,
no
doubt,
have
many
files
which
you
no
longer
need.
You
may
rid
your
disk
of
unwanted
files
by
using
the
scratch
command:
SO:UNWANTED
and
the
file
"UNWANTED"
will
be
removed
without
a
trace.
BEWARE!
this
is
a
permanent
action!!
Make
sure
that
you
do
not
enter
the
name
of
a
file
you
want
to
keep!
SECTION
4
—
PHONEBOOK
OPERATIONS
The
ModemMaster
Phonebook
gives
you
the
ability
to
automatically
dial
friends,
Information
Services
or
Bulletin
Board
Systems
without
memorizing
phone
numbers
or
special
"log-on"
or
"pass
word"
sequences.
For
instance,
if
you
wish
to
dial
a
local
Bulletin
Board
System
(BBS)
you
can
use
the
Phonebook
to
dial
the
BBS
and
enter
the
correct
BBS
pass
word
"log-on"
code
for
you
at
the
touch
of
a
button.
Of
course,
to
take
advantage
of
these
features
you
must
know
the
phone
numbers
and
log-on
sequences
(if
any)
of
the
BBS
or
Information
Services
you
wish
to
contact.
In
general
most
BBS
systems,
but not
all,
will
be
able
to
communicate
using
the
system
preset
defaults
of
the
ModemMaster
Software
so
go
ahead
and
try
them.
If
you
are
unable
to
connect,
you
will
have
to
contact
them
to
find
out
which
communications
parameters
each
BBS
requires.
4.1
EDITING
THE
PHONEBOOK
Once
you
know
the
parameters,
select
option
1,
Edit
Phonebook,
from
the
phonebook
operations
menu.
The
phonebook
menu
will
be
displayed.
You
may
add,
delete,
or
edit
by
pressing
A,
D,
or
E.
10
4.2
EDITING
Try
editing
an
entry
that
you
don't
plan
to
keep.
First
press
E
to
edit
an
entry.
Next,
using
the
cursor
up
and
down
keys,
move
the
cursor
to
the
entry
you
wish
to
edit,
then
press
RETURN
to
begin
editing.
All
data
for
that
entry
will
now
be
displayed.
Once
again
use
the
cursor
up/down
keys
to
select
which
parameter
you
wish
to
edit
and
then
press
RETURN.
The
entire
line
will
now
be
"Framed"
or
enclosed
by
an
editing
"Window".
In
the
name,
phone
number,
or
password
windows
just
type
in
your
data
using
the
keyboard.
You
may
use
the
[DEL],
[INST],
and
cursor
right
or
left
keys
while
editing
in
these
windows.
In
the
remaining
windows,
use
the
cursor
right/left
keys
to
highlight
your
new
choice.
From
either
type
of
window,
simply
press
RETURN
to
accept
the
new
parameter.
If
you
want
to
retain
the
original
data,
press
the
RUN/STOP
key
in
the
previous
step.
When
you
are
finished
editing,
select
exit
and
press
RETURN.
You
will
be
given
a
choice
to
"Accept"
or
"Reject"
the
new
data.
If
you have
any
doubts
choose
"REJECT"
to
retain
the
previous
data.
4.3
ADDING
AN
ENTRY
Press
A
from
the
phonebook
edit
menu.
You
will
then
be
given
the
opportunity
to
enter
the
following:
Name:
Phone#:
Password:
Baud
rate:
Duplex:
Wordsize:
Stop
Bits:
Parity:
Linefeed:
Delete
Key:
If
you
are
unsure
of
any
of
the
values
you
may
just
press
RETURN
at
any
category
and
the
value
will
not
be
changed.
You
may
have
up
to
23
entries
in
a
phonebook,
however,
you
may
store
several
phonebooks
as
long
as
there
is
only
one
phonebook
on a
disk.
One
idea
is
to
store
a
phonebook
on
each
"Data
Disk"
that
you
wish
to
save
buffer
data
on.
11
4.4
DELETING
AN
ENTRY
Deleting
a
phonebook
entry
is
the
easiest
of
all
phonebook
operations.
Simply
press
D,
select
an
entry
(using
the
cursor
up/down
keys)
and
press
RETURN.
You
still
have
one
last
chance
to
save
the
entry!
If
you
have
made
a
mistake,
just
don't
save
the
new
phonebook.
As
long
as
you
don't
save
the
new
phonebook,
the
old
one
will
still
be
on
the
disk.
4.5
SAVING
AN
UPDATED
PHONEBOOK
Once
you have
completed
entering
or
editing
your
phonebook,
you
may
save
the
new
data
by
selecting
option
2,
save
phonebook,
from
the
phonebook
operation
menu.
To
save
a
phonebook
you
may
put
it
back
on
the
MODEM
MASTER
disk
or
use
an
extra
disk
which
is
ready
for
data.
(See
the
section
on
disk
operations
for
details
on
how
to
format
a
blank
disk).
If
you
choose an
old
data
disk,
make
sure
that
you
will
not
accidentally
overwrite
another
phonebook
which
is
stored
there.
(Once
again
see
the
section
on
obtaining
a
directory).
To
store
the
new
phonebook
simply
press
the
2
key.
4.6
LOADING
A
PHONEBOOK
To
load
a
phonebook,
insert
the
disk
with
the
correct
phonebook
on
it
and
press
the
3
key.
If
there
was
a
phonebook
in
memory,
the
new
one
will
replace
it.
You
may
now
use
the
new
phonebook
to
auto
dial
and
automatically
set
the
parameters
for
any
BBS
listed
within
it.
12
SECTION
5
—
MODEM
OPERATIONS
To
answer
or
place
a
call
using
your
Master
Modem,
select
the
"Modem
Operations"
option
from
the
main
or
"Operations"
menu.
5.1
AUTO
DIAL
USING
THE
KEYBOARD
Press
the
2
key
to
auto
dial
from
the
keyboard.
You
may
use
the
preset
parameters
or
select
values
from
a
system
listed
in
the
phonebook
which
uses
similar
communications
parameters.
After
choosing
parameters,
enter
the
number
of
the
bulletin
board
when
prompted.
You
may
use
dashes
to
separate
area
codes,
etc.
Example:
1
-800-555-xxxx
However,
the
dashes
are
not
necessary.
Also
if
you
must
"Dial
out"
from
a
business
phone,
you
may
insert
a
letter
P
or
a
series
of
them
to
allow
a
pause
to
wait
for
the
"outside
line"
dial
tone.
Example:
9-PP-1-800-555-xxxx
When
you
have
entered
the
number,
set
the
Voice/Data
(or
Talk/Data)
switch
in
the
"Data"
position
and
press
RETURN.
The
number
will
be
dialed
for
you
and
the
computer
will
wait
for
a
carrier
signal.
If
none
is
detected
within
a
reasonable
time,
ModemMaster
Software
will
"HANG
UP",
wait
for
a
dial
tone
and
try
again,
until
it
gets
through.
WARNING
—
IF
YOU
ARE
AUTOMATICALLY
DIALING
THE
WRONG
NUMBER
YOU
WILL
DRIVE
SOMEONE
NUTS,
AND
MAY
HAVE
YOUR
TELEPHONE
SERVICE
SUSPENDED!
PLEASE
—
THE
FIRST
TIME
YOU
CALL
A
NEW
NUMBER,
DIAL
IT
MANUALLY
TO
BE
SURE
IT
IS
NOT
A
WRONG
NUMBER.
5.2
MANUAL
DIALING
USING
THE
PHONE
That's
right,
you
can
still
do
it
the
old
fashioned
way!
Set
the
Voice/Data
switch
to
Voice,
pick
up
the
phone
and
dial
the
number.
When
you
hear
a
high
pitched
tone
(the
carrier
signal)
place
the
Voice/Data
switch
in
the
Data
position,
hang
up
and
press
RETURN.
You
are
now
on-line.
If
you
normally
dial
long-distance
numbers
using
a
long-distance
dialing
service
that
requires
you
to
dial
a
local
number,
then
enter
a
secret
password
on
your
touch-tone
phone,
then
you
will
have
to
dial
the
phone
number
manually.
This
is
because
the
Master
Modem
uses
a
pulse
dialing
method,
cannot
generate
the
tones
needed
by
the
long-distance
dialing
service
to
complete
the
call.
Of
course,
if
you
are
dialing
local
phone
numbers,
you
can
still
use
the
phonebook
and
autodialing
capabilities
for
these
numbers.
13
SECTION
6
—
ON
LINE
Now
that
you
are
finally
"ON-LINE"
the
first
thing
to
do
is
to
send
your
ID
number
and
password.
Type
in
your
ID
number
and
press
RETURN.
Atthe
next
prompt
type
in
your
password
or
press
F4
key
if
you
were
dialing
from
your
personalized
phone
book.
NOTE:
Most
passwords
are
not
visible
on
the
screen
when
you
type
them
in.
If
this
is
the case,
they
will
not
be
visible
when
you
enter
them
by
using
the
F4
key
either.
The
reason
for
this
is
SECURITY!
Those
around
you
will
not
be
able
to
read
your
password
from
the
screen.
A
passord
is
like
a
credit
card;
treat
it
like
one!
6.
FUNCTION
KEY
DEFINITIONS
F1
—
Toggles
receive
buffer
on/off
F2
—
Saves
buffer
to
disk
F3
—
Toggles
between
full
and
half
duplex
F4
—
Transmits
password
F5
—
Opens
disk
command
channel
F6
—
Upload/Download
menu
F7
—
View
buffer/Return
to
on-line
F8
—
Print
Buffer/Return
to
on-line
Use
STOP
+
RESTORE
keys
to
return
to
the
operations
menu.
F1
F1
toggles
the
receive
buffer
on
and
off.
This
means
that
to
turn
it
on
you
press
it
once.
Pressing
it
the
next time
will
turn
the
buffer
off.
The
RCV
flag
will
be
present
when
the
buffer
is
on.
Notice
how
this
works.
Press
F1
twice
and
watch
the
RCV
status
indicator
in
the
status
line.
Press
F1
before
you
ask
for
information
that
you
might
want
to
save.
An
example
would
be
before
asking
for
operational
instructions
on
a
newly
contacted
bulletin
board
system.
Thus
you
could
save
the
instructions
in
the
buffer,
and
later
to
disk
or
printer.
When
the
data
you
receive
is
no
longer
of
sufficient
interest
to
warrant
saving
it,
turn
off
the
receive
buffer
by
once
again
pressing
F1.
If
you
wish
to
clear
the
buffer
without
saving
it,
press
F1
and
strike
the
RESTORE
key
at
the
same
time.
F2
Save
the
contents
of
the
buffer
to
disk
by
pressing
F2.
Make
sure
you
have
a
14
formatted
data
disk
in
the
drive
first.
(If
you
are
not
sure,
or
need
to
format
a
disk
for
use,
press
F5
to
open
the
disk
command
channel.
See
"F5"
for
details.)
The
contents
of
the
buffer
will
be
saved
to
disk.
The
buffer
will
not
receive
new
data
while
the
"Save"
operation
is
in
progress.
F3
The
F3
key
will
allow
you
to
"over-ride"
the preset
duplex
parameter.
Pressing
F3
will
toggle
back
and
forth
between
full
and
half
duplex.
The
flag
next
to
"DPX"
in
the
status
line
indicates
Half
Duplex
when
it
is
ON.
Full
Duplex
is
used
when
the
host
computer
will
"echo
back"
to
your
screen
data
you
type
on
your
computer.
If
you
get too
many
letters
on
the
screen
LLIIKKEE
TTHHIISS
turn
Half
Duplex
OFF.
F4
Pressing
F4
will
transmit
your
password
(up
to
20
characters)
each
time
you
press
the
key.
You
must
first
enter
your
password
in
the
phonebook,
save
the
updated
phonebook
and
then
use
it
to
do
the
dialing.
F5
The
disk
command
channel
is
accessible
at
anytime
while
on-line
and
operates
the
same
way
as
when
you
chose
the
disk
operations
option
from
the
operations
menu.
While
using
the
disk
command
channel,
the
buffer
is
temporarily
turned
off.
Be
sure
you
wait
until
you
have
captured
all
the
required
data
before
pressing
F5
to
activate
the
channel.
F6
Pressing
F6
will
bring
up
the
UPLOAD/DOWNLOAD
menu
for
making
file
transfers
between
computers,
or
downloading
software
from
BBS
systems.
The
system
you
connect
with
must,
of
course,
honor
the
same
protocol
for
UP/DOWNIoading.
The
two
most
common
protocols
(X-modem
and
Punter/CBM)
are
supported,
allowing
use
with
virtually
any
system
on-line.
F7
The
F7
key
allows
you
to
turn
on
the
"view
buffer
contents"
mode.
When
you
press
the
F7
key
you
will
see
three
things
happen
on
the
screen
if
you
are
in
the
"Receive"
buffer
mode.
First
the
RCV
flag
will
disappear
telling
you
that
the
buffer
is
no
longer
receiving
new
data.
Secondly,
the
VUE
(or
view)
flag
will
be
displayed
notifying
you
that
the
data
you
are
viewing
is
coming
from
15
the
buffer,
and
not
from
the
host
computer.
Third,
the
complete
contents
of
the
receive
buffer
will
scroll
across
the
screen.
If
the
data
is
moving
too
fast
to
read,
you
may
press
the
SPACE
bar
to
pause
the
data,
then
press
the
SPACE
bar
again
to
resume
the
listing.
After
the
buffer
has
been
completely
displayed,
you
may
return
again
to
on-line
mode
by
pressing
the
RETURN
key
or
the
STOP
key.
Pressing
F7
again
will
return
you
to
the
on-line
mode,
at
this
point
you
should
set
the
receive
buffer
to
the
desired
condition
before
proceeding.
F8
You
can
print
the
contents
of
the
buffer,
at
anytime,
to
your
1525
or
other
compatible
printer
by
pressing
F8.
Since
printing
is
a
rather
slow
operation,
it
is
more
efficient
to
print
the
buffer
"off-line"
after
you
hang
up.
6.2
EXITING
FROM
ON-LINE
After
ending
a
session
you
may
exit
from
"on-line"
by
pressing
RUN/STOP
and
striking
the
RESTORE
key
at
the
same
time.
Once
you
are
"off-line"
you
may
use
any
of
the
other
functions
of
ModemMaster
Software
such
as
the
disk
operations,
viewing
or
printing
the
buffer,
etc.
6.3
ANSWERING
A
CALL
Selecting
option
4
from
the
modem
operations
menu
will
allow
you
to
answer
a
call
from
a
friend
or
from
another
computer.
You
will
be
given
2
choices:
Answer
now,
or
Answer
later.
You
would
choose
Answer
Now
if
you
and
a
friend
both
decided
to
hook
up
your
computers.
In
this
case
you
would
connect
your
Modem,
turn
on
your
computer,
load
MasterModem
Software,
and
select
the
Answer
Now
option
from
the
Modem
operations
menu.
Set
your
Voice/Data
switch
to
Data
and
let
your
friend
act
as
the
"originating"
party.
As
soon
as
your
computer
detects
the
other's
carrier
signal,
the
connection
will
be
completed
and
you
will
go
on-line.
Since
you
both
will
be
typing
at
the
same
time,
you
need
to
work
out
a
system
to
tell
the
other
one
when
you
are
done
typing.
One
way
is
to
press
RETURN
followed
by 3
asterisks
and
a
second
return
when
you
are
done.
This
will
make
it
quite
easy
to
know
whose
turn
it
is
to
send!
If
one
party
must
interrupt
another,
try
doing
so
using
the
dash
or
minus
sign.
In
this
way
the
message
being
sent
will
still
be
readable,
while
the
sender
becomes
aware
of
the
need
for
the
interruption.
The
person
being
interrupted
should
then
send
the
3
asterisks
and
turn
control
over
to
the
other
person.
Please
note
that
this
is
only
one
method
and
is
by
no
means
the
only
way.
The
idea
is
to
agree
on
something
and
stick
to
it!
16
SECTION
7
—
BUFFER
OPERATIONS
Once
you
have
captured
data
in
the
buffer
you
have
3
options
while
"on-line."
You
may
view
it,
print
it,
or
you
may
save
it
to
disk.
In
this
section
you
will
learn
what
you can
do
with
"captured"
data
once
you
are
"off-line".
7.1
VIEWING
THE
BUFFER
ON
THE
SCREEN
This
option
will
allow
you
to
read
the
captured
data
at
a
more
leisurely
pace
once
you
are
"off-line"
and
no
longer
paying
phone
charges
and/or
bulletin
board
connect
time.
With
a
buffer
full
of
information,
select
the
buffer
operations
option
from
the
operations
menu,
then
select
option
"1"
view
buffer
on
screen.
You
may
load
a
file
from
disk
and
view
it
—
(see
loading
a
buffer
from
disk).
While
viewing
the
buffer
contents
you
may
pause
the
display
at
any
time
by
pressing
SPACE
bar.
When
you
are
through
viewing
the
buffer
contents
press
RUN/STOP
to
return
to
the
buffer
operations
menu.
7.2
PRINTING
A
BUFFER
Select
option
"2"
(Print
Buffer)
from
the
buffer
operations.
This
will
allow
you
to
print
a
buffer,
which
you
have
captured
or
loaded
back
into
the
buffer
from
the
disk,
on
your
1525
compatible
printer.
7.3
SAVING
A
BUFFER
TO
DISK
Once
you
have
"Captured"
a
buffer
full
of
data
you
might
wish
to
save
the
file
on a
disk.
Select
option
4
—
"Save
Buffer
to
Disk".
You
will
be
prompted
by:
SAVE:
Type
in
the
file
name
you
wish
to
save
the
buffer
contents
under,
then
press
RETURN.
The
buffer
contents
will
be
saved
as
a
sequential
file
on
your
disk.
Now
that
you
have
saved
the
buffer
contents,
you
may
refer
back
to
it
at
any
time
by
simply
using
the
"Load
Buffer
from
Disk"
option
from
the
buffer
operations
menu.
7.4
LOADING
A
BUFFER
FROM
DISK
To
load
up
a
buffer
which
has
already
been
saved
previously,
insert
the
disk
containing
the
buffer
file
into
your
1541
drive.
Use
the
Disk
Operations
menu
to
view
a
directory
of
the
disk.
Once
you
are
sure
of
the
name
of
the
file
you
want
to
load,
select
option
4
from
the
buffer
operations
menu
by
pressing
the
"4"
key.
When
you
are
prompted
by
the:
17
LOAD:
prompt,
enter
the
filename
of
the
desired
buffer
and
press
RETURN.
The
disk
drive
will
activate
and
you
will
be prompted
to
press
RUN/STOP
to
return
to
the
buffer
operations
menu.
You
may
now
view
or
print
the
buffer
contents
using
the
appropriate
option
from
the
buffer
operations
menu.
7.5
ERASING
THE BUFFER
Printing
the
buffer
or
saving
the
buffer
will
automatically
clear
the
buffer
and
restore
it
to
an
"empty"
state.
There
may,
however,
be
times
when
you
wish
to
clear
the
buffer
of
all
data
without
printing
or
saving
it.
To
accomplish
this,
simply
press
the
"5"
key
to
"erase/buffer".
You
will
be
asked:
ERASE
BUFFER:
ARE
YOU
SURE
Answer
with
a
Y
or
N.
CAUTION:
if
you
have
not
saved
the
buffer,
the
contents
will
be
lost!
18
SECTION
8
—
SENDING
AND
RECEIVING
.NFORMAT.ON^%OAO.NO
AND
This
chapter
will
cover:
1.
What
uploading
and
downloading
really
mean
and
what's
appropriate
to
upload
and
download.
2.
How
to
upload
to
and
download
programs
from
a
Commodore
Bulletin
Board
System
using
Punter
protocol.
3.
How
to
upload
and
download
from
CompuServe
and
other
systems
using
the
X-Modem
protocol.
4.
How
to
send
text to
a
system
that
does
not
support
the
CBM
(Punter)
protocol
or
X-Modem
protocol.
5.
The
difference
between
uploading
and
downloading
in
the
Up/Down
Mode
and
using
the
RCV
Buffer.
8.1
WHAT
UPLOADING
AND
DOWNLOADING
MEAN
There
are
two
ways
to
exchange
messages
and
other
data
with
another
computer
over
a
phone
line.
One
way
is
simply
to
type
out the
information
on
the
keyboard,
causing
it
to
appear
on
the
other
computer's
screen
or
be
recorded
in
its
memory.
The
second
way
is
to
send
or
receive
information
from
a
file
created
earlier—usually
a
file
containing
quite
a
bit
of
data,
such
as
a
computer
program
or
many
pages
of
text.
In
this
second
case,
the
sending
computer
transmits
the
data
automatically
at
a
fairly
high
speed
and
the
receiving
computer
stores
it
in
memory,
ready
to
be
printed
or
saved
to
disk.
Although
many
people
use
the
terms
"upload"
and
"download"
loosely,
the
words
really
refer
to
an
automatic
form
of
sending
and
receiving
data.
It
is
that
form
we
will
learn
about
in
this
chapter.
Downloading
of
programs
and
text
from
a
host
computer
system
is
one
of
the
most
useful
and
fun
parts
of
computer
telecommunication,
but
it
requires
specific
knowledge
of
the
host
system's
capabilities
and
settings.
Don't
expect
to
download
a
program,
or
even
to
communicate
effectively
with
a
host
system
if
you
don't
know
that
system's
characteristics.
Many
systems
have
protocols
(rules
or
procedures)
for
transferring
actual
program
code,
ready
to
load
and
run
in
your
computer.
Public
hobby
bulletin
boards
are
primary
among
these.
Other
systems
may
only
transfer
text
—
numbers,
letters,
punctuation
and
so
on.
On
these
systems,
it's
common
practice
to
make
available
a
text-LISTing
of
programs.
These
may
be
19
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