On Tue, Oct 11, 2011 at 1:47 PM, Lee Mushel <[email protected]> wrote:
> You always have to remember that the 5000A has 2,457,281 cables going into > it and all are potential highways for RF. Flex has learned a little about > keeping that stuff out of the box since it was introduced. Mine, one of the > early ones, for example, did not have the common mode ferrite at the mike > connector. For me that was a 3" dia. pipe for "spurious stuff." You just > can't have too many of those chokes and while I have not yet bored a hole in > the basement floor for a salt well ground, proper gounding is difficult to > achieve! > Proper grounding (for RF) is nearly impossible to achieve on all bands using the same ground. That is why one needs to choke off common-mode RF currents rather than trying to shunt them to ground. In fact, I have NO RF ground in the shack. The only ground is at the point where the coax enters the building, with common mode chokes on both sides. Works just peachy. So start thinking in terms of unwanted common-mode RF currents as opposed to grounding. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 [email protected] +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
