Hi all, With a mismatch, it is not only high voltage that could kill the finals but also high current, or am I wrong? 73 John M0JBA

A much underused phrase! 73 John M0JBA

#qdx

Wet or dry roof? 73 John M0JBA

#antennas #qdx

Hi all, Would it help if the windings were described as left hand or right handed (as with screw threads). Just a thought. 73 John M0JBA

#qdx #help

James, I had the same thoughts as you. If There is a mixture of 9 and 12V equipment it is only a matter of time before12V is applied to the 9V equipment. I considered building a voltage regulator into

Hi all, In my view (which of course could be wrong, or merely outvoted) a problem with the social media is that the world’s leading authority on a subject and the village idiot have just the same acce

Bruce, Thanks, that works fine for me. Doing anything on a computer is easy, finding out how to do it is the hard part! Thanks also to everyone who offered suggestions. 73 John M0JBA

Arnie, Tried that, Ctrl - Z, X, C, Q, D including Alt, Shift etc on two different Macs So will have to try Linux and Windows (or live with ‘Power cycling@ 73 John M0JBA

Glenn, I’ll give that a try, Thanks. 73 John M0JBA

Andy, Daniel, Ctrl-X and Esc also do not work. It’s the same with my wife’s iBook pro, so not my keyboard, more likely a Mac thing. I’ll try Linux and Windows in a couple of days. 73 John M0JBA

Alan, You’re right it is Ctrl-Q but that does not exit either. The windows key + Q quits the terminal completely without benefit of the applications menu. 73 John M0JBA

Evan, Thanks again, but I’m using a generic windows keyboard and Ctrl-C works with other programs. I’ve tried various combinations of keys without success. Next step will probably to try my Windows an

Evan, Thanks for that, but once I have selected say 'Audio filter sweep’ I’m stuck there and can’t get out again. This is the same for all the selections I have tried. 73 John M0JBA

Hi all, I’ve recently completed my QDX and am now playing around to see what it does. So far it receives various modes, transmits at about 4W on all bands (constructed for 12V supply) The terminal app

Order #56969 left QRP Labs 1 June by Turkish Post and delivered UK 11 June. No extra charges. I wonder what I’ll be doing next week. 73 John M0JBA

Over the years I have found ‘off’ switches to be very useful. ymmv 73 John M0JBA

The impedance stick has the problem that it does not distinguish between capacitive and negative reactance. I prefer to use scales to compare the capacitor/inductor with a known standard, as capacitan

Hi all, I adjusted my bias by connecting an absorption wattmeter to the U3S output and increasing the bias to give 100mW output. 100mW is enough for my WSPR requirements and gives a greater factor of

#bias #u3s

But not for many years I hope! 73/72 John M0JBA

Thanks for the replies. I will be ordering the TCXO (and other things) over the weekend. 73/72 John M0JBA