[Elecraft] BL2

[Don Wilhelm]

Clint,

I would recommend plastic.  There are circumstances where one side of 
the balun output can be grounded (think vertical antenna), and under 
those conditions, there is a chance that a metal enclosure will connect 
one of the balanced legs to the coax shield - that will bypass one side 
of the choking impedance and render the balun ineffective.

If you are careful to avoid the circumstances mentioned above, then 
either metal or plastic can be used.

73,
Don W3FPR

On 11/9/2012 12:41 AM, Clint wrote:
> I just received my BL2 kit. I want to weatherproof it. I am going to replace
> the BNC with a UHF (mounted on the enclosure) and maybe do something
> different with the balanced line connectors.
>
> My questions are: Can I enclose it in a die cast aluminum box or should I
> use plastic? Will there be any effect RF wise using metal, besides
> shielding?
>
>