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The modularity is the happiness of the one who wants to do the QRP, the one who wants to do the digital to the one who wants a great power for a better comfort of traffic. I bought QRplabs kits and

Atouk, I'm of a mind to agree.? Though 10w is not increasing the power, only trying to get more than 2W at 10M maybe.? However general cleanliness of the output spectra is important if only to meet

Dennis: For the Win 7 machine, unpack the ZIP file into a temporary directory. With the Arduino IDE (or a text editor), open each INO file until you find the one that holds both the setup() and loop()

Hi atouk, I had the same thought. Make the UBITX as clean as possible with fairly even power across the bands say at 10 watts. Create an amplifier supplying about 50+ watts and small as possible.

Try clamping the mic on TX. No room audio. De-thump should still work. (Theoretical :-) ). de ZL2DEX

Hi Armin, 1. The file I used from Gary was an ino file. (he also sent along a hex file, but I couldn't get ArduinoBuilder to work) 2. I originally used the zip file from Github - this file contained

I want upgrade the firmware of ubitx from stock one particularly for ft8 ( ptt over usb). Some one told me that upgrading firmware associated and followed with recalibration of raduino. Any expert

Thank you, Raj

I found some tips for my Hakko iron that are wide with a square notch in the end that straddles the part and melts both sides at once.

With the amount of rework and component changes on the board to get higher power, wouldn't a better strategy be to get the cleanest output possible, and spend the time designing an external PA that

I too don't note much heat on them but the little 3904s sure heat up.? I did put one of the tiny Raspberry pi 5v fans with a dropping resistor to give them a little air. You have to add a 7805

But unfortunately he's 2000 miles away and I can't help him . ?. ?He is a great QRP lifelong ham too!

Microsoft has done a good job with Minecraft after buying it from Mojang. I’m keeping an open mind.

One comment on higher power... The T30-6 toroids are way to small for more than 10W.? So all the low pass filters in the corner wold require revisiting. Most people at 10W use T37-2 or t37-6 and

Jerry, I can post in 18 point type if need be.? Why so large in you posting? The 2n2369A smt has a suffix and I'd have to look it up.? Last time I ordered it it was 4 years ago. That is what

Mike, I'm glad you posted this because I hadn't thought of it before.? I put a 6V regulator in the supply line for the audio amp.? The regulator cost 29 cents, so that could be a good way to power

That's a shame because there are really no changes necessary.? Just put it together correctly and it will work

I don't want to become famous for this, but I accidentally ran a WSPR transmission on 40 M without the antenna connected.? My PS is 12V.? I don't know what the current draw is.? The heatsinks are

49.152 MHz crystals can be obtained in fundamental mode (mostly in SMD package; 5x7mm is not too difficult to work with, but smaller packages certainly are), however, check datasheets carefully and

tim, I think it would be ok but I have not tested. Try it and let us know.? I didn't get to that. Allison