Hi LF Apart from cheking that blacksheep is still running ;-) Just a notification to LFMEN I’m transmitting WSPR-2 during daylight to check conditions as we approach summer solstice here About
Hi Luis, Thanks for your activity and good luck. I will take it as a motivation to work on bringing back my LF grabber. There is a concept which could be realised in a relatively short time... 73, St
Hello Luis, thanks for your work and reports, I have turned on the WSPR15 reception and will look out for you, but my friend G6ECH, Stuart, is returning here soon whilst his house undergoes modernisa
Hello Luis, Plenty of WSPR15 spots here, but for some reason they are not uploading to the reporter map / database, despite restarting WSPR15 2145 -9 0.1 0.137604 0 EA5DOM IM98 30 1015 -18 -0.2 0.137
Hi LF Thank you for the reports Chris. Very interesting I have switched to WSPR-2 as could be running Tx last night and there are more monitors. Conditions are getting harder but still some spots fro
Hi Luis, Maybe use two transformers in series, just to rise the isolation voltage and reduce the capacity between PA and antenna further :-) BTW on MF you can make some TA crossings during this time
Interesting You mean one transformer for each mosfet ? Like this? https://www.dropbox.com/s/ssg9bgc6pvqszg0/IMG_20190604_104826_324.jpg?dl=0 Best regards Luis --Mensaje original-- De: owner-rsgb_lf_g
Hi Luis, No, i just mean a second transformer between PA and the other transformer, into the coax line. A simple 1:1 ferrite transformer. Your ground conductors into and arround the building are a pa
Hi LF I'm keeping the WSPR-2 transmissions in LF during the summer solstice But the hard way ..... daylight ;-) Tx every 6 minutes. RF current 2.5 to 3A into a 90m vertical top loaded, top feeded bui
Hello Luis Also listening WSPR15 as much as I am able and until my pal visits again to "borrow" the aerial for MF ;) DL7NN is probably too busy working to keep paying the electric bill, he's been ext
Hi Chris, LF Summer solstice today. Beaming the good old winter According to wsprnet map DL7NN found lower electricity rates in Angola. May be also a few locals are hardly pedaling every ten minutes
Hi Luis, Oh yes, the longest daytime today in that year here. This is very nice but not good for LF radio. But then both summer and winter has some advantages and it is nice to see things always beco
Hi Stefan, LF I'm recovering this message were you proposed a 1:1 ferrite transformer to isolate the antenna My problem is that the antenna impedance varies a lot with humidity. This days we have a h
Hi Luis, Am 28.06.2019 22:04, schrieb VIGILANT Luis Fernández: My problem is that the antenna impedance varies a lot with humidity. This days we have a hot and dry weather about 30% moisture. VNA sho
