[Elecraft] S6 noise floor?

[Fred Jensen]

During my employed life, I worked on classified projects for the 
military and we often worked in SCIF's [shielded rooms] to keep the 
computer emissions confined.  Double doors with phosphor bronze fingers 
on each, copper shielding in the walls, floor, and ceiling, etc.  
Generally speaking, a test radio was pretty much silent inside on any 
frequency.

However, all of the noise I see on my P3 and hear comes in on the 
antenna coax.  If it is disconnected from the K3, I hear only circuit 
hiss.  I doubt shielding your shack will be worth the cost and effort.  
You can't beat K9YC's dissertation on chokes [
http://audiosystemsgroup.com/RFI-Ham.pdf] and proper choking and bonding 
WILL have a profound effect on common mode noise.

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
On 2/26/2020 5:14 AM, AE4PB at carolinaheli.com wrote:
> Aside from installing ferrite on all cables (not sure why this isn't
> integrated somehow if it's that large of an issue) would having the shack
> walls lined with a grounded screen help reduce/eliminate radio noise?
>
> Is the cost/effort worth it?
>
> My wife and I are planning to build a house in a few years and I'm planning
> out my station.
>
> Based on the noise issues I have and have researched it sounds like I need a
> shielded room where all cables in/out are wrapped in ferrite and power is
> routed through a 1:1 transformer OR true sine wave UPS.
>
> Then I still have to deal with computer equipment noise and anything else to
> get a clean signal where the ground noise is low.
>
>   
>
> Jerry Moore
>
> Cell: 803-431-1870
>