https://mailchi.mp/mpja/mpja-email-specials-04-12-21

All, I know this isn't the right forum for this - anybody know of a forum for people building linear amps? Last night, I had my first contact in some years. A pleasant gentleman in Calgary. Unfortunat

An interesting link I discover today : AMP Lab at Virginia Tech - uBitx Workshop (google.com) ( https://sites.google.com/a/vt.edu/amp_lab/projects/ubitx-workshop ) 73 - Pierre - FK8IH

I ask to the most experienceds of me in the use of MIXERS: if I inject a direct voltage (eg 1Vdc) to the BF input of the modulation mixer, is it possible that the BFO frequency comes out unmodulated?

Hello, This is my creation. I’ve spent a lot of nights on this project. it’s a bit like an auto show A prototype that will be built with only one copy. I let you discover... Extended 12v and 5v power

You are all most welcome to join us on a talk: Talk: An Evening with Bob Heil K9EID Tuesday 13th April 2021 8 pm BST (which is 1900 UTC) We are very excited to welcome the legendary Bob Heil K9EID to

All, Got an email from DHL - uBITX kit is scheduled to arrive this Friday! Looking forward to putting it together and trying it out. Am fantasizing making it remote controlled - over the network. Mayb

I just pushed version R1.4.0 of my software fork for the stock uBiTXv6 Arduino Nano. It includes a LOT of back-end changes, but only a couple user-facing updates: There's now a designated spot in the

http://qrparci.org/?utm_source=sendinblue&utm_campaign=News_04012021&utm_medium=email note this talk "Ashhar Farhan VU2ESE - sBITX - An Open Source SDR that YOU can hack!" -- 73 Bob KD8CGH

I used my v6 about 2 times and now the screen is unresponsive to input. Can get into calibration page but again won’t accept touch screen inputs. Can’t tune with encoder either. Have tried reflashing

Hello everybody. I have a version 3 of the uBitx. Is the negative feedback in the finals necessary or at least useful for the stability of the push-pull amplifier? I have seen the 26db 10w amplifier b

Hello all. There has been one small part of the schematic that has always confused me What role does M1 and M2 play. It looks like they are grounded yet that would not make sense. As the radio receive

Hello, i'm using a ver. 4 Ubitx with 2.8 " Nextion display, using in CW there is a strange problem, something the radio it's "freezing" during trasmission and i can't send no more CW and also i can li

I was never overly confident of the two small heat sinks supplied for the IRF 510's. I had made a modification to get rid of the heat on the 5 volt regulator and also steady the vertical board which i

Evan, I've changed the thread name to something I think more appropriate. Should be sufficient to simply state that this is a continuation of the conversation here: https://groups.io/g/BITX20/topic/75

Ages back Ashan or Ashar published a whimisical schematic where he used on of the Si labs offerings to potentially become an FM VHF as in NBFM generator. Does anyone recall how this was done and how f

farhan@...> wrote: > >> My embarrassment would be the relay-based computer science fair >> project that I tried to design in 6th grade. It did work to some >> extent until the actual fair. By then the

After getting my feet wet with the UBITX I ran across this interesting sounding project: https://antrak.org.tr/blog/usdx-a-compact-sota-ssb-sdr-transceiver-with-arduino I sent off the Gerber files and

Hello everybody, Does anyone know if, I think their name is, Inkits is open, ( their URL is amateurradiokits.in ). I ordered a uBitx 5” Nextion universal case, with all the goodies included, from them

hello, My bitx40 not transmit when use mic but when use CW transmit normally and my output power is 5watt on dummy load. please any idea about my problem. 73 de Yiannis, SV5FRI