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I haven't had a chance transmit other than CW mode into a dummy load. I want to finish my antenna analyzer before I start pumping rf into my Carolina Windom. Reception was very good but noisy with all

The Raduino is a combination of two things. The chip and circuit that generates the frequencies, and a Arduino Nano. You can unpower the uBITX and plug the mini USB plug into the Arduino nano unit on

I have used the Minipa 70 in my scratch built BitX. While I can get 70 Watts out (13.8v supply), it is short lived as a final will blow within a few seconds and short closed. 50 Watts will work for

Rogier, Go to https://ubitx.net/tag/zl1axg/ and download the KD8CEC manual. It has step-by-step instructions. Regards, Rod KM6SN

My very first contact with my BITX40, first HF contact at all for that matter, was with W9IMS.? I'm not a race fan but they had a good strong signal and I got through.? I don't collect paper but I

Just a couple of days left in our "Name the Board" contest. About three dozen entries in hand. Entries due by 2359 UTC on May 20 2018 Only entries sent to "jrg.qrv (at) gmail (dot) com" will be

I am finding instructions mentioning compiling etc. I visited the KD8CEC website and I am confused with the instructions given. Is the Raduino the same as the Arduino so I can use the help recourses

I want to make a substitute Raduino using a "Blue Pill" STM32F103 board. Does anyone know where I can get a quick start on the CAD by finding an Eagle or KiCAD file set that already has the critical

The mic may be bad or connected reverse polarity.. pay attention to that!

Are you using an electret condenser mic ? If you connect a dynamic mic then what you describe is correct. The design is for electrets. Raj

Bill, are you still using the IRF510’s and if so how many turns for the primary and secondary windings? While experimenting last night I noticed that T11 was heating up and power out would drop

The BFU590 is a current device?with similar specs.? -- Karl Heinz - K5KHK

I agree too!? I have been making contacts with special events stations and DX on 40 meters SSB.? My first contact was the Marconi Birthday Memorial station in Cape Cod, then the Indy Speedway F1

Are you using the mic element that came with the UBITX? If you are did you wire it up correctly, there is a positive/audio pin and a negative/ground pin connected to the case of the element. You can

Nice info, but i fear same device if bought from ebay could well be a fake "wx" device (tda2822) Regards MVS Sarma alans77@...> wrote:

An unexpected bonus from using the NJM2037 is a significant reduction in receive audio distortion. Highly recommended.? Alan N4AYE

I am having a ball with mine, I get around 10 watts on 80 and 40 meters. I am making contacts up to around 700 miles from a fan dipole at 35 feet (10 meters or so). I am putting the finishing touches

Happy!!! I replaced the diode and it works again???

They come up as obsolete https://au.mouser.com/ProductDetail/NXP-Semiconductors/BFG591115?qs=me8TqzrmIYV1Icts49EGBw%3D%3D

Getting there, I reckon do the mpsh10 before the RD16hhf1. I can do the rd16RD16 first, and we can get 2 sets of data.. I have tomorrow off work, and plan to play radio all day. 73 Nick VK4PLN