[Elecraft] KRX3 Mounting Problem

Don Wilhelm w3fpr at embarqmail.com
Mon Dec 29 08:13:07 EST 2008


Ken,

Measure the standoffs mounted on the main board - they should be 7/8 
inch and must have two split lockwashers under them - a total height 
above the board not quite an inch.  The height of these standoffs are 
critical because the 1 1/2 inch screws only engage the threads for about 
1/8 inch.

If those standoffs are correct, check all the standoffs that you mounted 
in the KRX3 board and the number of lockwashers between the standoffs 
and the board - these must be correct for everything to fit properly.

73,
Don W3FPR

Kenneth Lopez wrote:
> Howdy,
>
> I have nearly completed the KRX 3 installation, but have run into a 
> physical mounting problem
>
> The two 1 1/2" 4-40 screws are not long enough to reach the stand offs 
> below the KRX3 module
>
> I have VERY carefully followed instructions.  There have been some 
> missing standoffs which I had to supply from my own stock.  As a 
> result I have been careful to measure all of the screws and standoffs.
>
> It appears to me that many of the standoffs mounted on the RF board 
> are too short.
>
> The KRX 3 module rests on the battery,  and mates correctly with the 
> pins on the mating boards.  It has what looks to be the right amount 
> of clearance above the RF board toroids.
>
> I took the side panel off to better see the clearances.  It looks as 
> though the supplied screws are at least 1/2" too short.
>
> What in heck is going on?  Have I done something wrong?
>
> Or do I have the wrong screws supplied? Or the wrong standoffs?
>
> Cheers,
>
> Ken N6TZV
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft  
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - http://www.avg.com 
> Version: 8.0.176 / Virus Database: 270.10.1/1867 - Release Date: 12/28/2008 2:23 PM
>
>   


More information about the Elecraft mailing list