[Elecraft] [K3] Using K3 for relative noise survey

[Walter Underwood]

Wizkers:io or Wizkers:radio may already do that scanning that you want. I know you’ve written it in Python, but Ed may have worked out the kinks in the measurements.

http://www.wizkers.io/buy-or-diy <http://www.wizkers.io/buy-or-diy>

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Aug 1, 2017, at 7:58 AM, Don Wilhelm <donwilh at embarqmail.com> wrote:
> 
> Dave,
> 
> You can use the Alternate VFO B display of AFV to give better resolution than the S-meter.  See page 36 of the K3 manual.  You must have the CONFIG: TECH MODE turned on to show the AFV entry.
> 
> If you want to see the difference between two values, there is also the DBV alternate VFO B display which will show the difference in dB between 2 noise or signal settings.
> 
> 73,
> Don W3FPR
> 
> On 8/1/2017 10:17 AM, Dave Sublette wrote:
> 
>>> 
>>> I currently live in a townhouse and have made an offer on a few acres in a
>>> more rural area. I would like to measure the relative noise levels between
>>> the two locations to reduce the probability of surprises or disappointments
>>> should I close the deal.  I have gotten access to a very good battery
>>> powered spectrum analyzer and plan to use a tripod-mounted 6 foot whip and a
>>> 20 dB LNA to measure the noise levels at each location.
>>> 
>>> While setting this up, I though it would be interesting to try to also use
>>> the K3 to measure noise with the same antenna (but without the LNA).  I've
>>> written a Python script to control the K3 as it steps through each band and
>>> records S meter levels.
>>> 
>>> I'm looking for recommendations on K3 settings for this purpose.  Specific
>>> questions I have are:
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