Sneaking RF Into a Case... - RF Cafe Forums
Post subject: Sneaking RF into a case... Posted:
Mon Apr 27, 2009 10:44 pm
Joined: Mon Apr
20, 2009 2:04 pm
I was just
wondering if anyone had a suggestion for sneaking RF through a chassis
wall and into a load without leaking it all over the interior of
Essentially, I want to transport DC plus up
to 37dBm of 30MHz - 10GHz, through a connector, into a chassis and
then into a box that functions as a dummy load / bias Tee to pull
the DC out.
My concern is getting the RF from chassis wall
to the box containing the Tee without interfering with unshielded
equipment in the chassis.
Post subject: Re: Sneaking RF into
a case...Posted: Tue Apr 28, 2009 8:17 am
Joined: Wed Apr 08, 2009 7:53 am
chassis IP rated?
If it is an IP65 chassis, then just make
a drilling on the bottom face of the chassis (big enough so the
cable connector can pass though) and connect the cable into the
insider load box.. perhaps you could put a plastic device on the
chassis wall hole(I don´t know how you call it) so you don´t damage
And be careful, perhaps it is not a good idea
to have unshielded RF inside of the chassis.
is not ideal for every application, this is common for IP65 outdoor
high power cellular repeaters..
Hope this helps you.
subject: Re: Sneaking RF into a case...Posted: Wed Apr 29, 2009
Joined: Fri Feb 17, 2006 12:07
Location: London UK
I don't have your precise mechanical config, I would mount a good
quality SMA bulkhead female to female connector on the outside box,
and something similar on the inside box, then attach an SMA male
to SMA male semi-rigid coax line between the two. That gets the
DC plus 30-10000 MHz to the inside of the inner box with a screening
factor of about 100dB.
Or am I missing something that makes that
At bottom, life is all about
Sucking in and blowing out.