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potting my radio! - RF Cafe Forums
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wsemajb
Post subject: potting my radio! Posted: Thu Feb 09, 2006
1:35 pm
Captain
Joined: Wed Nov 02, 2005 1:50 pm
Posts:
11
Hello y'all
I've got a Senao usb wifi device with an external
antenna connection.
Great little unit. I anticipate using it on
my boat this summer. That may require a little ruggedizing against water
and handling. The case is not even minimally water resistant and the
SMA connector, while of good quality, is not going to bear up to supporting
a decent sized antenna mast should I wish to use a larger one. Hmm.
I've sucessfully potted things in the past with common two part
epoxy, but this is a more sensitive, and expensive, piece of equipment
than those. I did some research on the web and found warnings against
using epoxy with smc's. Shrinking, high Tg, etc. This unit does not
seem to produce great amounts of heat. There are no sinks on the board
and no vents in the case. The unit gets slightly warm while operating.
I'd really like to pot it for waterproofing and to provide rigidity
for the SMA coax connection. There is an adhesive specialty vendor in
the neighborhood, they have samples of many products (since I can scarcely
justify two quarts of expensive compound for this one use), but they
can't provide good advice for my application. What compound should I
be asking them for?
Thanks for any help.
Posted 11/12/2012
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