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21 MHz is now open almost all the time. Here is what turned up on the sbitx this evening, just before dinner. Please note the decodes are within the sbitx screen.

Gerard, your transformer maybe under powered. The unregulated voltage should be at least 3v over 12, ie 15v for the regulator to work properly.

After some brainstorming, it is not applicable on a power supply line. The resistances of 47KOhm are in series. here is better ? YO3DAC\Home Page (qsl.net) ( https://www.qsl.net/va3iul/ )

Hello, I tested different power supplies for my Ubitx Homebrew. I’ve eliminated switching power supplies because they’re too noisy. I tested a power supply of my design, but the audio amp also

Merci pour les informations très intéressantes, Gerard. 73 PY7EG Saulo Em ter., 22 de mar. de 2022 às 15:06, Gerard <kabupos@...> escreveu:

Nice radio with lots of capability for the money, but looking for a machine geared more toward CW mode. As new, v6.1 with cabinet. As factory built with no mods or firmware changes. Comes with the OEM

Peeps, I have been hacking away at adding features to the sbitx. I decided to implement an "in-app" viewer of the wsjtx but I couldn't find any simple code. I wrote it this afternoon. The code is a

Hello, you can use also this free software for?design your? front sides of case Schaeffer?AG Designer de Faces Avant (schaeffer-ag.de) (

Hello Chris Thanks for your reply, yes at the time I write this letter, I also found, that the big elco capacitor Vcc filter is mandatory. I also experiment that one 1000uF is needed. My AF amp is

I found it really cool! It's been added to my bag of tricks, for sure.

@ Gerard: Good idea to use glossy paper! I imagine that the toner will even stick less on it then on normal paper. I will try it. @ Dave A0DOB: maybe the movie is a bit long to show everything in

Hello, You can also do your circuit boards the same way. it is better to use glossy magazine paper Tutoriel circuit imprimé par transfert de toner à froid - YouTube (

I didn't make it to the end of your video When I have assembled my uBITX V3 I laid out the controls on Fusion360? to get everything where I wanted before I cut the holes in the screen. Then 3d

Hello Gerard. TFBD ,terminated folded broadband dipole could be fitting for your purpose. En francais un dipole replie boucle sur 1000ohm :

Gerard you can fasten it right to the wood to simplify construction. Just use a staple gun to fasten each wire down to each beam and if it is too long continue fitting along the end walls wrapping it

Thanks for all yours answers Bob you wrote: " Being inclined 30 degrees will probably make the dipole more omni-directional." it's will do like this with symetrie. cdt

Any dipole antenna should work fine. I have a 40M, 20M, 10M, 6M fan dipole antenna in my attic. Mounted as an inverted V. I had to fold the ends of the 40M wires. That one looks more like a Z. I have

Hello, Thank you for your answers The descent cable will be a 50ohm cable. I will take inspiration from these achievements. Dipole Antenna | Homemade HF Antenna Covers 40, 30, 20, Meters And More -

A long wire antenna as Paul described is a useful option, but with a 16 meter space, I think a resonant antenna would be best. You can easily fit a resonant 20 dipole in the attic, and if you'd like,

For recieve only, a simple wire as long as possible connected to the center of the bnc connecter will work. -- KC8WBK