On Sat, 23 Aug 2014 00:29:20 -0400, "Sir Gregory Hall, Esq."
wrote:

That's all well and good until one notes a diode installed
backwards (black line facing input of data) so no current
can pass that way. Made in Mexico - no wonder it was defective.

===

I suspect that if you had reversed the two wires that it would have
worked fine.

On Sat, 23 Aug 2014 12:46:56 -0400, Wayne.B
wrote:

On Sat, 23 Aug 2014 00:29:20 -0400, "Sir Gregory Hall, Esq."
wrote:

That's all well and good until one notes a diode installed
backwards (black line facing input of data) so no current
can pass that way. Made in Mexico - no wonder it was defective.

===

I suspect that if you had reversed the two wires that it would have
worked fine.


I tried that and it didn't work at all.

Diodes only pass electricity in one direction. If they
are installed in the circuit backwards they stop the
current from flowing.

On Sat, 23 Aug 2014 13:28:37 -0400, "Sir Gregory Hall, Esq."
wrote:

On Sat, 23 Aug 2014 12:46:56 -0400, Wayne.B
wrote:

On Sat, 23 Aug 2014 00:29:20 -0400, "Sir Gregory Hall, Esq."
wrote:

That's all well and good until one notes a diode installed
backwards (black line facing input of data) so no current
can pass that way. Made in Mexico - no wonder it was defective.

===

I suspect that if you had reversed the two wires that it would have
worked fine.


I tried that and it didn't work at all.

Diodes only pass electricity in one direction. If they
are installed in the circuit backwards they stop the
current from flowing.

But, as Wayne suggested, if you reverse the diode's connection they
should, if originally installed backward, allow current flow. If not
than (1) there is something else wrong, or (2) the diode is faulty.
--
Cheers,

Bruce in Bangkok

On Sun, 24 Aug 2014 13:59:53 +0700, Bruce in Bangkok
wrote:


But, as Wayne suggested, if you reverse the diode's connection they
should, if originally installed backward, allow current flow. If not
than (1) there is something else wrong, or (2) the diode is faulty.


I wish you'd shut up as you're obviously stupid.

On a two-wire DC circuit there is a positive
wire and a negative wire. If there is a diode
on the positive wire and it's installed backwards
then any positive current *sees* no circuit.

If one were to hook the negative wire to the
positive wire, current might flow but the
radio wouldn't know what to do with it. It
might even damage the radio. You and Wayne
are so stupid you seem to think an NMEA
circuit is like a light bulb in that it
works either way. Duh!

They probably put the diode in the circuit
in the first place to keep stupid people
from hooking the wires up wrong and you
and Wayne say go ahead and hook up the
wires wrong and it'll probably work.

ROFLMAO!!! Now I see why you had to abort
your circumnavigation less than halfway
around.

--
Sir Gregory

On Sun, 24 Aug 2014 15:47:41 -0400, "Sir Gregory Hall, Esq."
wrote:

On Sun, 24 Aug 2014 13:59:53 +0700, Bruce in Bangkok
wrote:


But, as Wayne suggested, if you reverse the diode's connection they
should, if originally installed backward, allow current flow. If not
than (1) there is something else wrong, or (2) the diode is faulty.


I wish you'd shut up as you're obviously stupid.

On a two-wire DC circuit there is a positive
wire and a negative wire. If there is a diode
on the positive wire and it's installed backwards
then any positive current *sees* no circuit.

If one were to hook the negative wire to the
positive wire, current might flow but the
radio wouldn't know what to do with it. It
might even damage the radio. You and Wayne
are so stupid you seem to think an NMEA
circuit is like a light bulb in that it
works either way. Duh!


Are you being deliberately obtuse? Or are you just stupid?

If you connect a diode in series with a DC circuit, in either the
positive or the negative leg, current will flow through the diode if
it is connected correctly. If current does not flow then reverse the
connections to the diode. No one was talking about connecting the
positive leg to the negative leg of the circuit.

Actually, a very slightly competent electrician would simply take his
handy dandy multi meter and check the resistance of the diode and
reverse the meter leads and check the resistance again which would
tell him whether the diode was connected properly, or not. It would
also tell him whether the diode was serviceable, or not.

Since you can't seem to handle this technical task all by your self
certainly does tell us something about your electrical knowledge.

They probably put the diode in the circuit
in the first place to keep stupid people
from hooking the wires up wrong and you
and Wayne say go ahead and hook up the
wires wrong and it'll probably work.

ROFLMAO!!! Now I see why you had to abort
your circumnavigation less than halfway
around.
--
Cheers,

Bruce in Bangkok

On Mon, 25 Aug 2014 06:59:51 +0700, Bruce in Bangkok
wrote:

On Sun, 24 Aug 2014 15:47:41 -0400, "Sir Gregory Hall, Esq."
wrote:

On Sun, 24 Aug 2014 13:59:53 +0700, Bruce in Bangkok
wrote:


But, as Wayne suggested, if you reverse the diode's connection they
should, if originally installed backward, allow current flow. If not
than (1) there is something else wrong, or (2) the diode is faulty.


I wish you'd shut up as you're obviously stupid.

On a two-wire DC circuit there is a positive
wire and a negative wire. If there is a diode
on the positive wire and it's installed backwards
then any positive current *sees* no circuit.

If one were to hook the negative wire to the
positive wire, current might flow but the
radio wouldn't know what to do with it. It
might even damage the radio. You and Wayne
are so stupid you seem to think an NMEA
circuit is like a light bulb in that it
works either way. Duh!


Are you being deliberately obtuse? Or are you just stupid?

If you connect a diode in series with a DC circuit, in either the
positive or the negative leg, current will flow through the diode if
it is connected correctly. If current does not flow then reverse the
connections to the diode. No one was talking about connecting the
positive leg to the negative leg of the circuit.

That's not what Wayne said. He said, and I quote, "I suspect that if
you had reversed the two wires that it would have worked fine."

Reversing the *two wires* means connecting negative to positive.

And you agreed with that little bit of folly.

Actually, a very slightly competent electrician would simply take his
handy dandy multi meter and check the resistance of the diode and
reverse the meter leads and check the resistance again which would
tell him whether the diode was connected properly, or not. It would
also tell him whether the diode was serviceable, or not.


Not necessary as there is a black line painted on the body
of the diode which black line indicates the end of the diode
that electricity will not pass. The symbol for a diode
is a triangle with a line, sorta like this | but with a
horizontal line through it and a vertical leg on the
triangle. The schematic vertical line represents the
actual black line that tells one by eye how the current flows
and how it does not. I didn't need to check it with an ohm
meter because of this marking. I just looked at it and knew
it was backwards.

Since you can't seem to handle this technical task all by your self
certainly does tell us something about your electrical knowledge.

For somebody who can't even read with comprehension and who has
assumed erroneously what Wayne typed meant to reverse the diode
connection, you have no room to talk.

--
Sir Gregory

On Sun, 24 Aug 2014 20:53:00 -0400, "Sir Gregory Hall, Esq."
wrote:

That's not what Wayne said. He said, and I quote, "I suspect that if
you had reversed the two wires that it would have worked fine."

Reversing the *two wires* means connecting negative to positive.

===

It's important to understand that there is no ground reference
implicit with the NMEA 183 interface standard, unlike a battery
connection. Therefore reversing the two wires is a perfectly valid
approach which probably would have solved your problem.

On Sun, 24 Aug 2014 20:53:00 -0400, "Sir Gregory Hall, Esq."
wrote:

On Mon, 25 Aug 2014 06:59:51 +0700, Bruce in Bangkok
wrote:

On Sun, 24 Aug 2014 15:47:41 -0400, "Sir Gregory Hall, Esq."
wrote:

On Sun, 24 Aug 2014 13:59:53 +0700, Bruce in Bangkok
wrote:


But, as Wayne suggested, if you reverse the diode's connection they
should, if originally installed backward, allow current flow. If not
than (1) there is something else wrong, or (2) the diode is faulty.


I wish you'd shut up as you're obviously stupid.

On a two-wire DC circuit there is a positive
wire and a negative wire. If there is a diode
on the positive wire and it's installed backwards
then any positive current *sees* no circuit.

If one were to hook the negative wire to the
positive wire, current might flow but the
radio wouldn't know what to do with it. It
might even damage the radio. You and Wayne
are so stupid you seem to think an NMEA
circuit is like a light bulb in that it
works either way. Duh!


Are you being deliberately obtuse? Or are you just stupid?

If you connect a diode in series with a DC circuit, in either the
positive or the negative leg, current will flow through the diode if
it is connected correctly. If current does not flow then reverse the
connections to the diode. No one was talking about connecting the
positive leg to the negative leg of the circuit.

That's not what Wayne said. He said, and I quote, "I suspect that if
you had reversed the two wires that it would have worked fine."

Reversing the *two wires* means connecting negative to positive.

And you agreed with that little bit of folly.


Sorry, your ignorance seems to be showing again. Most diodes have two
connections, sometimes labeled Cathode and Anode, and sometimes marked
"+" and "-". To "Reverse the connecting to the diode one would connect
the wire originally connected to the Cathode to the Anode and
vise-versa.

Now, even a nephrite electrician would be able to figure that out so
apparently your electrical knowledge is extremely limited, or you are
just trying to be an asshole.

--
Cheers,

Bruce in Bangkok

On Sun, 24 Aug 2014 15:47:41 -0400, "Sir Gregory Hall, Esq."
wrote:

They probably put the diode in the circuit
in the first place to keep stupid people
from hooking the wires up wrong and you
and Wayne say go ahead and hook up the
wires wrong and it'll probably work.

ROFLMAO!!! Now I see why you had to abort
your circumnavigation less than halfway
around.

===

For what it's worth I have about 5 NMEA connections on the boat and
they all work, most of them on the first try. My latest is a NMEA to
USB connection thanks to a nice little interface device:

www.amazon.com/Digital-Yacht-NMEA-Adapter-PC/dp/B004FBKS7K

"Wayne.B" wrote in message
...
===

For what it's worth I have about 5 NMEA connections on the boat and
they all work, most of them on the first try. My latest is a NMEA to
USB connection thanks to a nice little interface device:

www.amazon.com/Digital-Yacht-NMEA-Adapter-PC/dp/B004FBKS7K

FWIW, my current GPS is also a digital yacht, 105, no longer made, referred
for me by Raymarine a year ago as none of their current GPS are only NMEA,
and would require an adapter to make work with my gear.

Problem I'm having is data not getting to the MFD when either the computer
is off, or the serial port is disconnected.

Currently waiting for a response from Raymarine as to what might be
suggested by my wire setup...

Congratulations on getting yours working.

L8R

Skip

--

Morgan 461 #2
SV Flying Pig KI4MPC
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