grounding K2

classic Classic list List threaded Threaded
4 messages Options
Reply | Threaded
Open this post in threaded view
|

grounding K2

wsm-3
HI
All the other HF radios that I have had over the years have had
grounding posts on them. My K2 doesn't. Should it not be grounded?
Seems to me it would be a lot less likely to have RF in the shack if
it was grounded, but where would it be attached? Is anyone grounding
theirs and if so where are you attaching the wire?
Thanks
Scott N5SM
and it so


_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

Reply | Threaded
Open this post in threaded view
|

RE: grounding K2

Rich McCabe (IWH)
Huh?

Mine has a grounding post on the back. Tuner and the rig both.

??

Rich

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of [hidden email]
Sent: Tuesday, March 06, 2007 11:40 AM
To: [hidden email]
Subject: [Elecraft] grounding K2

HI
All the other HF radios that I have had over the years have had
grounding posts on them. My K2 doesn't. Should it not be grounded?
Seems to me it would be a lot less likely to have RF in the shack if
it was grounded, but where would it be attached? Is anyone grounding
theirs and if so where are you attaching the wire?
Thanks
Scott N5SM
and it so


_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

Reply | Threaded
Open this post in threaded view
|

Re: grounding K2

Bob Nielsen
In reply to this post by wsm-3

On Mar 6, 2007, at 9:39 AM, [hidden email] wrote:

> HI
> All the other HF radios that I have had over the years have had
> grounding posts on them. My K2 doesn't. Should it not be grounded?
> Seems to me it would be a lot less likely to have RF in the shack if
> it was grounded, but where would it be attached? Is anyone grounding
> theirs and if so where are you attaching the wire?
> Thanks
> Scott N5SM
> and it so

If you install the KAT2 antenna tuner, it has a binding post for  
grounding the K2.  This installs in the hole marked GND on the top  
cover.  If you are not planning to use a KAT2, it would still be easy  
to attach a screw or post for that purpose in the same hole.

Bob, N7XY

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

Reply | Threaded
Open this post in threaded view
|

RE: grounding K2

Don Wilhelm-3
In reply to this post by wsm-3
Scott,

There is no need to ground the K2 (or any other RF generator).  It will NOT
help with RF in the shack.  The place to reduce RF in the shack is at the
antenna.

A generator (K2 in this case) with a coax output will contain its RF output
to the center conductor of the coax and the INSIDE of the coax braid - the
coax outer braid will have no RF on it.

The problem comes when the coax is attached to something - like an antenna,
or a tuner.  At that end the RF can couple back onto the outside of the coax
as common mode current, and may be conducted into your shack.  Baluns can
help reduce this common mode current if the balun is a current type balun.
A coil of coax or the W2DU type balun (ferrite beads over the coax) work
well as either baluns or 'line isolators', and if properly applied to the
antenna system can eliminate RF in the shack.  An RF ground at the balun,
isolator or tuner may prove useful, but is not needed at the generator
(because it does not PRODUCE RF on the outside of the coax).

A tuner in the antenna system might be grounded to provide a path for the
common mode current, and the KAT2, KPA100 and KAT100 do provide grounding
lugs.

73,
Don W3FPR

> -----Original Message-----
>
> HI
> All the other HF radios that I have had over the years have had
> grounding posts on them. My K2 doesn't. Should it not be grounded?
> Seems to me it would be a lot less likely to have RF in the shack if
> it was grounded, but where would it be attached? Is anyone grounding
> theirs and if so where are you attaching the wire?
> Thanks
> Scott N5SM
> and it so
>
>
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.446 / Virus Database: 268.18.7/711 - Release Date: 3/5/2007
9:41 AM

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com