"Larry W4CSC" wrote in message
...
Those problems are usually because of the hardware connections associated
with CTS (clear to send) and RTS (request to send) lines not being held
high. RS-232 is made for hardware handshaking between devices so the
listening device can stop the transmission when its buffer (bit bucket?)
is
full. It goes way back to really dumb terminals that have no storage in
them for data. Jumpers added to the DB9 or DB25 connectors can make it
run
wide open to hyperterm on dumb data....er, ah, like NMEA..(c;

In Hyperterminal, you can goto File-Properties, click the button Configure,
goto Flow Control and select None.

And at the Properties page, tab Settings, goto ASCII setup and select "Send
line ends with line feeds" in order to send a line feed when you type an
NMEA sentence manually.

But a much better substute for HyperTerminal is TeraTerm.

Meindert

"Larry W4CSC" wrote in message
...
"Meindert Sprang" wrote in
:

we wouldn't have so many problems

Actually, too bad NMEA didn't look ahead and use RS-485 as the standard.
I
supports 32 talkers and 32 listeners on a single line.....

Er, ah, of course we wouldn't need to buy Meindert's MULTIPLEXERs under
RS-
485. 32 talkers is plenty for most boats.....(c;

:-)

Meindert

"Wout B" wrote in message
...

For this test, you want to connect the Transmit line of the PC Com port to
NMEA IN. Connect your PC Com port pins 3 and 5 to NMEA IN + and NMEA IN -
and transmit a $SDDBT sentence from Hyperterminal to the ST60 Multi
instrument.
Start Windows program Notebook and type the following NMEA sentence:
$SDDBT,-2.0,f,,,,*22 Press Enter and save this text in a file. The
value -2.0 represents a "negative" depth of 2.0 feet.
Start Hyperterminal with the PC connected to the ST60 instrument as
described above. Click on Transfer at the top of the Hyperterminal screen
and select "Send Text File". Find the .txt file you saved with Notebook
and
transmit.

Why can't you just type the sentence directly in Hyperterminal?

Meindert

"Meindert Sprang" wrote in message
...
"Wout B" wrote in message
...

For this test, you want to connect the Transmit line of the PC Com port
to
NMEA IN. Connect your PC Com port pins 3 and 5 to NMEA IN + and NMEA
IN -
and transmit a $SDDBT sentence from Hyperterminal to the ST60 Multi
instrument.
Start Windows program Notebook and type the following NMEA sentence:
$SDDBT,-2.0,f,,,,*22 Press Enter and save this text in a file. The
value -2.0 represents a "negative" depth of 2.0 feet.
Start Hyperterminal with the PC connected to the ST60 instrument as
described above. Click on Transfer at the top of the Hyperterminal
screen
and select "Send Text File". Find the .txt file you saved with Notebook
and
transmit.

Why can't you just type the sentence directly in Hyperterminal?

Meindert


Of course you can, but potentially the instrument may time out if the
characters of the sentence arrive with relatively long (typing) pauses in
between.
Also, if you want to repeat it several times it's easier to transmit it as a
file.
Wout

Hi Wout
Sorry for the delay in coming back, but it appears that I had a fault with
my ST60. This has been repaired and at the moment I am trying to get
information out (looks like the easier option)
If I use HyperTerminal with the GPS plugged into pins 2 and 5 I get a superb
string of GPS statements. Do the same thing with the ST60 and I get nothing.
Have chucked the problem back to Raymarine to see if they have any ideas

Phil


"Wout B" wrote in message
...

"Meindert Sprang" wrote in message
...
"Wout B" wrote in message
...

For this test, you want to connect the Transmit line of the PC Com port
to
NMEA IN. Connect your PC Com port pins 3 and 5 to NMEA IN + and NMEA
IN -
and transmit a $SDDBT sentence from Hyperterminal to the ST60 Multi
instrument.
Start Windows program Notebook and type the following NMEA sentence:
$SDDBT,-2.0,f,,,,*22 Press Enter and save this text in a file. The
value -2.0 represents a "negative" depth of 2.0 feet.
Start Hyperterminal with the PC connected to the ST60 instrument as
described above. Click on Transfer at the top of the Hyperterminal
screen
and select "Send Text File". Find the .txt file you saved with Notebook
and
transmit.

Why can't you just type the sentence directly in Hyperterminal?

Meindert


Of course you can, but potentially the instrument may time out if the
characters of the sentence arrive with relatively long (typing) pauses in
between.
Also, if you want to repeat it several times it's easier to transmit it as
a
file.
Wout