[R-390] Receiver dust covers

[Al Parker]

Hi Perrier,
	I've had and/or worked on 6 or 8 R-388's, many (maybe most) did have 
the bottom cover, few had the top.  IIRC, somewhere in the manual it 
says to do the alignment with the bottom cover on.  I remember aligning 
one w/o the cover, then realized the mistake and did it right.  Didn't 
compare performance before/after, but the re-alignment did require changes.
	I hope you and your wife are doing well out there on the left coast.
73 (to a new ham, congrats),

Al, W8UT
www.boatanchors.org
www.hammarlund.info

"There is nothing -- absolutely nothing -- half so much
worth doing as simply messing about in boats"
Ratty, to Mole

On 10/20/2016 1:22 AM, Perry Sandeen via R-390 wrote:
> List,
> I did notice less noise on my R388 with the top cover on.
> All the R388's I have are missing the bottom cover as well as almost all I've seen on Ebay.
> I don't know how much difference it makes with it missing but I suspect it may be substantial as the sectioned modules have many screw holes for fastening one down.
> Does anybody have experience do a shield-no shield test.
> Regards,
> Perrier
> _________________________________________________