Re: [IRCA] Drake R8 sensitivity

[Russ Edmunds <wb2bjh@xxxxxxxxx>]

I don't think it's the Drake, I think it's simply variations in conditions. Groundwave conductivity varies with the amount of moisture content, and whether or not the ground is frozen ( trapping moisture in the process ). Fog is also known to alter normal groundwave conditions. From time to time, some have suggested that groundwave reception can be altered by having the sap running and the leaves on the trees.

I routinely notice variations in local signals from one listening session to the next. 


Russ Edmunds
15 mi NNW of Philadelphia  
Grid FN20id
<wb2bjh@xxxxxxxxx>
FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15'; Grundig G8
AM:  Modified Sony ICF 2010's barefoot


--- On Wed, 5/11/11, Colin Newell <cafe@xxxxxxxxxxxxx> wrote:

> From: Colin Newell <cafe@xxxxxxxxxxxxx>
> Subject: Re: [IRCA] Drake R8 sensitivity
> To: "Mailing list for the International Radio Club of America" <irca@xxxxxxxxxxxxxxxx>
> Date: Wednesday, May 11, 2011, 12:33 PM
> 
> An AGC thing perhaps?
> 
> From time to time, my R8 completely loses its mind and
> I have to power cycle it -- did not think there was a
> processor
> in there to get all messed up.
> 
> On Tue, 10 May 2011 22:17:11 -0700 mwdxer@xxxxxxxxx
> (Patrick Martin) wrote:
> >I have noticed since getting the R8 back, the S Meter
> is more sensitive
> >to minor changes. I normally get local KSWB 840 at 9
> miles at S9+38 days
> >(1KW) and S9+35 nights (500w). But at times depending
> on conditions, the
> >signal can drop or go up a bit. I have noticed anywhere
> from S9+32-35
> >(500w) to S9+38-40 (1 KW). This is on the SW EWE. 
> Anyone ever notice
> >this on locals?
> 
> Colin Newell is the editor and creator of Coffeecrew.com,
> DXer.ca and BobHarris.com Amateur Radio VA7WWV - Victoria
> B.C. Canada | Twitter.com/coffeecrew
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