Dave, My first (untested) opinion. I don't think tape will get the shielding job done adequately. I have had problems with leakage on some low level generators I have built through the power connections. I would believe a die-cast enclosure with as few penetrations as practical is one of the few answers - another answer is an enclosure fabricated of PC board and a soldered on cover with a feed-thru bypass cap for the power. Take a look at one of Wes Hayward's low level generators on page 7.18 of Experimental Methods in RF Design.
Levels in the -130 to -140 dBm range are VERY low, and even a small amount of leakage getting into the receiver under test will cause skewed readings. 73, Don W3FPR On 10/29/2010 7:17 PM, Dave Van Wallaghen wrote: > Thank you for a very concise reply. If I were to put some kind of sheildng in > the case like aluminum tape or something like it. Would that work? > > What would you like to see for something like this? > > Always learning sonething cool from this list - > Dave W8FGU > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
