Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while tying up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
potting my radio! - RF Cafe Forums
RF Cafe Forums closed its virtual doors in 2012 mainly due to other social media
platforms dominating public commenting venues. RF Cafe Forums began sometime around
August of 2003 and was quite well-attended for many years. By 2010, Facebook and
Twitter were overwhelmingly dominating online personal interaction, and RF Cafe
Forums activity dropped off precipitously. If the folks at
phpBB would release a version with integrated
sign-in from the major social media platforms, I would resurrect the RF Cafe Forums,
but until then it is probably not worth the effort. Regardless, there are still
lots of great posts in the archive that ware worth looking at.
Below are the old forum threads, including responses to the original posts.
|-- Amateur Radio
Gripes & Humor
-- CAE, CAD, &
Test & Measurement
Post subject: potting my radio! Posted: Thu Feb 09, 2006
Joined: Wed Nov 02, 2005 1:50 pm
I've got a Senao usb wifi device with an external
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.