[Elecraft] K3 RS232 no data out

[Phil LaMarche]

I have an engineered ground as well and haven't had any problems, even with
a hit.  I don't worry about it either because I have ARRL insurance that is
cheap and pays full price with a very small deductable.  Payment is very
fast. I've collected for years for various losses and love it.  Been insured
since the 80's.

Phil 


Philip LaMarche
 
LaMarche Enterprises, Inc
Phil at LaMarcheEnterprises.com
www.LaMarcheEnterprises.com 
 
727-944-3226
727-937-8834 Fax
727-510-5038 Cell 
 
www.w9dvm.com
 
K3 #1605
 
CCA 98-00827
CRA 1701
W9DVM
 

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Tom W8JI
Sent: Wednesday, June 09, 2010 4:45 PM
To: n4zr at contesting.com; Monty Shultes
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 RS232 no data out

Pete,

I take hits directly on my towers all the time, and I never disconnect the
K3 or any other rig. Of course my closest tower is about 150 feet away, so
this might not work if you get a hit just feet away where the EMP is huge,
but a good system will significantly reduce chances of a problem. With the
spacing I have from towers to house the problems are virtually gone, this
includes the contest barn that is only about 75-100 feet from the one 200
foot tower.

http://www.w8ji.com/station_ground.htm

73 Tom


----- Original Message -----
From: "Pete Smith" <n4zr at contesting.com>
To: "Monty Shultes" <montys at mindspring.com>
Cc: "elecraft at mailman.qth.net" <Elecraft at mailman.qth.net>
Sent: Wednesday, June 09, 2010 2:53 PM
Subject: Re: [Elecraft] K3 RS232 no data out


> Hi Monty - what is odd to me is that in 20 years of computer-aided
> operating, this is my first RS-232 failure, and it wasn't even that
> impressive a storm.  Closest hit was ~1000 feet.  Anyway, it's an
> expensive lesson.  I wonder if making *really* sure of a good common
> ground between radio and computer might also help (?).
>
> 73, Pete N4ZR
>
> The World Contest Station Database, updated daily at 
> www.conteststations.com
> The Reverse Beacon Network at http://reversebeacon.net, blog at 
> reversebeacon.blogspot.com
>
>
> On 6/9/2010 6:54 AM, Monty Shultes wrote:
>> Every summer I write this little note.  If you see lightning or hear
>> thunder, disconnect all cables and wires to your K3.
>>
>> Not just the antennas.  Not just the PowerPole.  The key lines, ALC,
>> IF out, LINE IN, LINE OUT, headphone, mic(s), RS232, Accessory,
>> ground, speaker lines, too.
>>
>> I had lightning damage 2 years ago when my K3 was brand new.  Never
>> again, I hope.
>>
>> Monty  K2DLJ
>>
>>
>>> I wonder if there is anything that can be done (on the board, for
>>> example, or in an outboard box) to decrease the vulnerability of U1
>>> (written as I await my replacement KIO3A board).
>>>
>>> 73, Pete N4ZR
>>>
>>
>>
>>
>>
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