Hi Louis, thanks for the new grabber link just added it in the list! By the way since 2 days I'm active on MF wspr getting plenty of reports including yours ;-) The antenna is the same used at LF (of
ehm just for fate, my work has to do with noise and thermal insulation... do you need a sample of our famous Schallschluck? :-) Marco IK1HSS Carrier stopped 00:05 UTC. Am 16.01.2017 00:42, schrieb DK
Hi Mal, unfortunately I guess is not an easy task on MF... the mast is generally grounded (ehm in the sea..) because is electrically connected to the ballst bulb for lightening safety so you have to
Hi MF Very interesting night ! Combining WSPR and Opera8 transmissions I have been able to get decodes in both modes from USA last night Mainly because now we have a US station using Opera There was
Congrats to Alex for the fine RXsetup. Congrats to Stefan for the new achievement!!! :-))) 73 Marco ...just in case that someone didn't receive Alex' mail, here one of the best of the images that wer
My opinion is probably not valuable... but I guess that your winding work was worth Stefan! :-) Compliments to you Stefan and compliments to the ears of Renato! It's is really looking for the first 5
Hi Stefan, where do you qsy next? :-) the dreamer band is now no longer a dream ;- ) are you winding a new coil for 77 Hz band? gosh.. 3800 km of wavelenght! Leaving the jokes .. again compliments fo
Hi Joe, me too.. we could set up a FET&Chips boot somewhere ;-) After long time of reliable operations, the smoke went out of my LF PA. Now after several replacements I started scraping my head becau
Best wishes to all the group. A special one to Chris and his brave FEts ;-) Tonite while the QRP TX is on on MF, a couple of proud FET will challenge for the last time on my QRO TX: will apply low DC
Hi Chris :-) I guess that finally found what was wrong with my PA! The last available FET survived to the test yesterday and the only thing warming is the dummy load :-) This morning will stop sendin
Hi Joe! compliments for the amazing result! It is really amazing what you are doing on both side of the pond! 73 Marco, IK1HSS Thank-you Paul. Your RX setup and processing are fantastic. 2.6 electron
Chris, I guess there is a little misstyping in the calculation performed from Clemens on the DJ5IL tool.... he entered 2.5 instead of 25 in the impedance box: the primary winding after the combiner s
Hello Chris, happy to read that increasing the turn number you can make the life easier to the toroids ;-) (the FETs also enjoy hi). I'm not a professional, but using the formula and taking care of r
Hello Chris, Hello Clemens, thanks for the confirmation, softwares are wonderful but is always better have a rough idea of the possible resoult and check it ;-) anyway if he will have an update it is
Oh dear :-) would like to propose a law for sending SMS only by EbNaut on LF/VLF: it would be so nice!!!! Leaving the jokes and my personal opinion on cells and related matter.. You are doing a wonde
Hello Chris, Hello Clemens, wish to share a couples of mumblings.. I don't know if the saturation formula used calculating B on transformers is valid also for inductors.. probably we should ask some
Hallo Clem, und vielen Dank für die Erklärung :-) Hi Marco, It is indeed. B =V/ (4.44*F*N*A) No,but I was referring to V across L2, not across the load. See the three attached spice simulations. 73 C
uhuh... a slightly silly misleading assumption... Vdc are the same of Vrms before FETs make their work! Thank you Andy for pointing out it!! With this approach calculation changes a bit and probably
Hi Andy, and thanks for thinking to my FETs :-) Indeed I made 2 trials, the first with the 5T/12T xfmr and then changed a bit the ratio but I got about the same kind of resoults. Now I have a new xfm
