"John, N9JG" wrote in
t:

When I operate on 75 meter SSB with my transceiver, my computer beeps
and disconnects/reconnects my USB connected keyboard. Note that I do not
have this problem on 40 meter SSB. My computer is located on the second
floor of a brick house, and one end of my dipole is about 15 feet from
my shack.

From comments made by others, I may have to put RF filters on the cables
and wires connected to my computer. I am contemplating the use of
Amidon FT-240-77 ferrite toroids, which have an I.D. of 1.4 inches and
cost $9 each. If I buy in quantities of 10, is there a cheaper source
for this toroid?

Any comments or suggestions on this problem would be appreciated.



Do CW, you won't know if it's your computer or radio beeping. Problem
solved.


SC

In article .net,
says...
"John, N9JG" wrote in
t:

When I operate on 75 meter SSB with my transceiver, my computer beeps
and disconnects/reconnects my USB connected keyboard. Note that I do not
have this problem on 40 meter SSB. My computer is located on the second
floor of a brick house, and one end of my dipole is about 15 feet from
my shack.

From comments made by others, I may have to put RF filters on the cables
and wires connected to my computer. I am contemplating the use of
Amidon FT-240-77 ferrite toroids, which have an I.D. of 1.4 inches and
cost $9 each. If I buy in quantities of 10, is there a cheaper source
for this toroid?

Any comments or suggestions on this problem would be appreciated.



Do CW, you won't know if it's your computer or radio beeping. Problem
solved.


SC

You know nothing. You have the lowest brain capacity of any living
human in the world!!

I had similar issues with USB disconnects etc while operating HF QRO. I then
added a ground wire from the case of the PC to my station ground and that
resolved it for me...

--

73,Charlie-AD5TH
www.ad5th.com


"RadioGuy" wrote in message
...
In article .net,
says...
"John, N9JG" wrote in
t:

When I operate on 75 meter SSB with my transceiver, my computer beeps
and disconnects/reconnects my USB connected keyboard. Note that I do
not
have this problem on 40 meter SSB. My computer is located on the second
floor of a brick house, and one end of my dipole is about 15 feet from
my shack.

From comments made by others, I may have to put RF filters on the
cables
and wires connected to my computer. I am contemplating the use of
Amidon FT-240-77 ferrite toroids, which have an I.D. of 1.4 inches and
cost $9 each. If I buy in quantities of 10, is there a cheaper source
for this toroid?

Any comments or suggestions on this problem would be appreciated.



Do CW, you won't know if it's your computer or radio beeping. Problem
solved.


SC

You know nothing. You have the lowest brain capacity of any living
human in the world!!

Thanks for the reply. The problem was solved when I

1) Ran #12 wire through the 2nd-story window sill and down to a 10 feet long
copper clad ground rod. The length of the wire run is about 15 feet. While
this may seem to be an obvious step, at my previous QTH the use of an earth
ground made RF feedback problems worse on some bands.

2) Installed an Amidon FT-240-77 ferrite toroid as a common-mode choke (11
turns) in the Orion's DC power supply cable and located about 18" from the
Orion. I am using an Astron RS-35A linear power supply (the fan on the
Ten-Tec switching PS was too noisy). The cable run between the power supply
and the Orion is somewhat lengthy because the Orion is connected to an
MFJ-1129 multi-outlet strip.


"Charlie" wrote in message
...
I had similar issues with USB disconnects etc while operating HF QRO. I
then added a ground wire from the case of the PC to my station ground and
that resolved it for me...

--

73,Charlie-AD5TH
www.ad5th.com


"RadioGuy" wrote in message
...
In article .net,
says...
"John, N9JG" wrote in
t:

When I operate on 75 meter SSB with my transceiver, my computer beeps
and disconnects/reconnects my USB connected keyboard. Note that I do
not
have this problem on 40 meter SSB. My computer is located on the
second
floor of a brick house, and one end of my dipole is about 15 feet from
my shack.

From comments made by others, I may have to put RF filters on the
cables
and wires connected to my computer. I am contemplating the use of
Amidon FT-240-77 ferrite toroids, which have an I.D. of 1.4 inches and
cost $9 each. If I buy in quantities of 10, is there a cheaper source
for this toroid?

Any comments or suggestions on this problem would be appreciated.



Do CW, you won't know if it's your computer or radio beeping. Problem
solved.


SC

You know nothing. You have the lowest brain capacity of any living
human in the world!!

On Thu, 02 Nov 2006 14:52:20 GMT, "John, N9JG"
wrote:

1) Ran #12 wire through the 2nd-story window sill and down to a 10 feet long
copper clad ground rod. The length of the wire run is about 15 feet. While
this may seem to be an obvious step, at my previous QTH the use of an earth
ground made RF feedback problems worse on some bands.

Hi John,

Make sure to connect this in dependant ground to the service ground or
you will have created an yet undiscovered new problem.

I say this because of the clue offered in your statement above about
problems becoming WORSE (you probably didn't have that ground tied to
the service ground then too, did you?).

73's
Richard Clark, KB7QHC

What you have suggested is on my "to do" list. The run to the service ground
will be quite long, however.

"Richard Clark" wrote in message
...
On Thu, 02 Nov 2006 14:52:20 GMT, "John, N9JG"
wrote:

1) Ran #12 wire through the 2nd-story window sill and down to a 10 feet
long
copper clad ground rod. The length of the wire run is about 15 feet. While
this may seem to be an obvious step, at my previous QTH the use of an
earth
ground made RF feedback problems worse on some bands.

Hi John,

Make sure to connect this in dependant ground to the service ground or
you will have created an yet undiscovered new problem.

I say this because of the clue offered in your statement above about
problems becoming WORSE (you probably didn't have that ground tied to
the service ground then too, did you?).

73's
Richard Clark, KB7QHC

I guess I didn't answer your question. You are quite right that at the
previous QTH, the shack ground rod was not strapped to the AC service rod.

"Richard Clark" wrote in message
...
On Thu, 02 Nov 2006 14:52:20 GMT, "John, N9JG"
wrote:

1) Ran #12 wire through the 2nd-story window sill and down to a 10 feet
long
copper clad ground rod. The length of the wire run is about 15 feet. While
this may seem to be an obvious step, at my previous QTH the use of an
earth
ground made RF feedback problems worse on some bands.

Hi John,

Make sure to connect this in dependant ground to the service ground or
you will have created an yet undiscovered new problem.

I say this because of the clue offered in your statement above about
problems becoming WORSE (you probably didn't have that ground tied to
the service ground then too, did you?).

73's
Richard Clark, KB7QHC

"RadioGuy" wrote in message
...

You know nothing. You have the lowest brain capacity of any living
human in the world!!

pse don't feed the troll

"Sal M. Onella" wrote in
:


"RadioGuy" wrote in message
...

You know nothing. You have the lowest brain capacity of any living
human in the world!!

pse don't feed the troll


How's your code practice coming, or did you give up on it because you're
lazy?

SC