[R-390] Reduced 500-1000KHz sensitivity

[Joe Foley]

The quickest thing to check is to see that the slug racks are not hanging up and that the cam followers are in fact following the cams tightly.  there could be crud built up on the cams or rollers.  Also, check that all of the springs are attached to the slug racks.  Check the slides for lumps of crud, etc.

Clean, clean, clean, oil.

Joe




--- On Tue, 3/15/11, Ian Gallimore <iangallimore at rogers.com> wrote:

> From: Ian Gallimore <iangallimore at rogers.com>
> Subject: [R-390] Reduced 500-1000KHz sensitivity
> To: "R-390A Group" <r-390 at mailman.qth.net>
> Date: Tuesday, March 15, 2011, 11:05 PM
> Hi, group,
> 
> My 390A was purchased from Fair five or six years ago.
> I've recently noticed a significant decrease in sensitivity
> in the 500-1000KHz band. Other bands appear to be OK. Just
> before this occurred, I noticed that the sensitivity could
> be dramatically increased by turning the MHz knob a little
> toward the 01 setting and back, but this no longer helps.
> Has anyone else noticed this?
> Any suggestions gratefully received.
> 
> 73
> 
> Ian VA3ODA
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