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P3 and RF in the shack

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W6ODJ

P3 and RF in the shack

Dear Wayne, Eric, et al,

Please, in the final design of the P3, pay some serious attention to the CABLES connecting the P3 to the K3. There are many of us who have an intractable problem of RF in the shack due to space restraints that require the shack and the radiating part of the antenna to be too close. (Loops in the attic, dipoles on the roof, rain-gutter antennas, etc.)

Maybe you should offer optional special cables that are just barely long enough to reach between the two units with the P3 in its canonical position directly beside the K3. And the cables themselves need to be of especially good quality and perhaps fitted with a choke or two.

Please check the K3-P3 system out in a hostile RF environment.

Tnx and 73,

Oliver
W6ODJ
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Don Ehrlich

Re: P3 and RF in the shack

Amen to that. This is a very smart suggestion.

Don K7FJ

> Please, in the final design of the P3, pay some serious attention to the
> CABLES connecting the P3 to the K3. There are many of us who have an
> intractable problem of RF in the shack due to space restraints that
> require the shack and the radiating part of the antenna to be too close.
> (Loops in the attic, dipoles on the roof, rain-gutter antennas, etc.)
>
> Maybe you should offer optional special cables that are just barely long
> enough to reach between the two units with the P3 in its canonical
> position directly beside the K3. And the cables themselves need to be of
> especially good quality and perhaps fitted with a choke or two.
>
> Please check the K3-P3 system out in a hostile RF environment.
>
> Tnx and 73,
>
> Oliver
> W6ODJ

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Eric Swartz - WA6HHQ

Re: P3 and RF in the shack

Administrator

In reply to this post by W6ODJ

Hi Oliver,

Yes - We are definitely paying attention to this.

73, Eric WA6HHQ
----

On 3/3/2010 12:01 PM, O. Johns wrote:

> Dear Wayne, Eric, et al,
>
> Please, in the final design of the P3, pay some serious attention to the CABLES connecting the P3 to the K3. There are many of us who have an intractable problem of RF in the shack due to space restraints that require the shack and the radiating part of the antenna to be too close. (Loops in the attic, dipoles on the roof, rain-gutter antennas, etc.)
>
> Maybe you should offer optional special cables that are just barely long enough to reach between the two units with the P3 in its canonical position directly beside the K3. And the cables themselves need to be of especially good quality and perhaps fitted with a choke or two.
>
> Please check the K3-P3 system out in a hostile RF environment.
>
> Tnx and 73,
>
> Oliver
> W6ODJ
>
>

Alan Bloom-2

Re: P3 and RF in the shack

All connectors (except the IF input of course) are bypassed to ground
right at the rear panel and have series inductors as well. The shells
of the RS-232 and BNC connectors are directly grounded to the rear
panel.

> > Maybe you should offer optional special cables that are just
> barely long enough to reach between the two units with the P3
> in its canonical position directly beside the K3.

I believe that's the plan. However if the optional RS-232 connection to a PC is used, the customer is responsible for that cable.

> > Please check the K3-P3 system out in a hostile RF environment.

It's hard to do a comprehensive job of testing for that since every
"hostile RF environment" is different. Equipment that works in one
might not work in another. But we definitely want the beta testers to
beat on the P3 as hard as they can.

Alan N1AL

On Wed, 2010-03-03 at 13:50 -0800, Eric Swartz - WA6HHQ, Elecraft wrote:

> Hi Oliver,
>
> Yes - We are definitely paying attention to this.
>
> 73, Eric WA6HHQ
> ----
>
>
> On 3/3/2010 12:01 PM, O. Johns wrote:
> > Dear Wayne, Eric, et al,
> >
> > Please, in the final design of the P3, pay some serious attention to the CABLES connecting the P3 to the K3. There are many of us who have an intractable problem of RF in the shack due to space restraints that require the shack and the radiating part of the antenna to be too close. (Loops in the attic, dipoles on the roof, rain-gutter antennas, etc.)
> >
> > Maybe you should offer optional special cables that are just barely long enough to reach between the two units with the P3 in its canonical position directly beside the K3. And the cables themselves need to be of especially good quality and perhaps fitted with a choke or two.
> >
> > Please check the K3-P3 system out in a hostile RF environment.
> >
> > Tnx and 73,
> >
> > Oliver
> > W6ODJ
> >
> >
> ______________________________________________________________
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>
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