Perhaps you could try windom/OCFD https://www.aerial-51.com/model-404-ul/ http://www.dj0ip.de/off-center-fed-dipole/40m-ocf/version-2-2/ https://hamwaves.com/cl-ocfd/en/index.html They seem work fine

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Just some questions : 1 - why taking a si5351 which makes square waveform, despite a Ad9851 which makes sinus (less to no harmonic) as made on F4GOH and RA4NAL ? https://hamprojects.wordpress.com/2015

Hi, do you try with a administrative user, for me arduino ide works only with admin user. 73-remi f1mqj

Check the potentiometer wiring, there is some mistake on first wiring (inverting high and middle) 73 - remi f1mqj —- vérifier le câblage du Potentiomètre, un schéma de câblage inversait le milieu et l

#ubitx

I ve at least 3 Chinese nano boards from various sellers, working fine with arduino ide and windows 8.1 (the only problem I have : it need to be run as administrator -giving strange messages when stan

Hi, For what i understand reading advices on ebay sellers, TJC is chinese version only (specific fonts ...) not usable elsewhere, Nextion is worlwide usable. 73 - Remi - F1MQJ Pour ce que je comprend

Il faut aussi faire attention a un compte non administrateur sous Windows, cela génère des messages d’erreur sur l´ide arduino ressemblant à des erreurs de compilation-> Faire la manip avec un compte

Larry i ve seen a page comparing arduino consumptions genuine and clone, it wasn’t so different, more reliable with genuine (quality test) but not bad at all for the great majority of clones remi f1mq

I ve got some problem with the nano included in the raduino you could have the same with all blinking » clones or genuine : it seems that one output was shorted to ground making great current consumpt

What's new Marty ? Remi - F1MQJ

#ubitx

This picture shows the 2 way pins can be soldered reverse on the nano, i choose the first one (not on the desktop) leaving plastic on the CH340 side, it allow using the nano either normal or reverse s

#ubitx

I added a file/photo showing the reversed side mounting pins for nano

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Add in 6b : modify the raduino vanilla software to use kd8cec memory manager and get the settings -so you can put these settings in your other nano with the kd8cec software neesing very few calibratio

#ubitx

Already answered : Search kf2510 (in this group and on ebay)

@leonard : i don’t grimp, i prefer solder (take care to jeep or small to get in the hole) @robert thank you for the hint/tip completing my Link to item (it’s obvious but i ve not thinked to do it ;-)

HI, some links on eBay with all size (8, 3, 2 pins) that i've ordered and which works fine (search KF2510) : https://www.ebay.fr/itm/10PCS-KF2510-8P-2-54mm-Connector-Terminal-Housing-Pin-Header-Right-

Thanks Jerry, Vince, Ralph and others I cutted the pcb to disconnect capa and socket REF pin from the AREF processor pin (if the problem have been a short capa or short circuit on this part of PCB it

#ubitx #radiuno

Thanks for advice and links (i already looked at this ch340 datasheet but it's very short and incomplete -no data about 3v3 output voltage interval) I've got something : only 36ohms between gnd and 5V

#ubitx #radiuno

7805 Input is direct battery=12.55V (if it’s going hot, IT me and IT HAS power to dissipate due to current x deltaV) 0,23A is a problem when : - it’s going to heat too Much the 7805 - at least 2 om me

#ubitx #radiuno

Mike (and others), the 7805 output is (only) 4.79V, with input at 12.55V (see picture) (Pb battery), I assume the low voltage is due to high current/power drain (0.23A = not far 2W), I don't think the

#ubitx #radiuno