30 October 2015 I now have my loading coil running without a matching transformer, as I have very slightly improved my ground. I get a Zmag of 45.6 Ohms, is it worth worrying about? Thanks, a scan is
Hi Chris, I would use an isolating transformer even if Z would be R = 50 Ohm. Also this allows you to improve the ground further :-) 73, Stefan Am 30.10.2015 15:31, schrieb Chris Wilson: 30 October 2
I agree with Stefan. A transformer (using a suitable core material such as 3C90) gives you more flexibility in the future It also provides the opportunity to isolate the RF ground from the mains supp
Hello Mike, Friday, October 30, 2015 yes, I still have trouble with the workshop alarm going off when I TX, but seemingly only at night, for whatever reason! Isolation is something I need to add. I h
Hello Mike, Monday, November 2, 2015 Thanks for those figures Mike, you keep mentioning more power, or a good signal from low power, but I am running a G3YXM amp, although the antenna is far from opt
Hello Andy, Monday, November 2, 2015 This is a link to the cores I have in this material Andy: http://uk.farnell.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=15001&langId=44&urlRequestType=
Hello Mike, Monday, November 2, 2015 I have this variometer, (although it was sold to me as a goniometer, for a fiver, and is unused). http://www.chriswilson.tv/goniometer.zip It measures, at 136kHz,
Hello Andy, Monday, November 2, 2015 OK, many thanks Andy, I reckon it should be ok for my purposes then, I'll wind one when I get an hour, much appreciated. -- Best regards, Chris mailto:chris@chris
Hello Andy, Monday, November 2, 2015 These cores of mine are of course halves of a whole, there's a plastic bobbin and a stainless clip arrangement that clamps two of the ones in my link together to
