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Where did you find that tip? 73 Bill WA8VIH/4

Mike, These simple circuits are rife with subtleties. No real benefit in using higher voltage when there is an easy access to the 5 volts from the Raduino. I don't understand why a voltage trace needs

ajparent1/KB1GMX ( /g/BITX20/profile/383014 ) 10:34 am???#51528??( /g/BITX20/message/51528 ) I swept mine, same deal.? About 1750hz wide which for SSB is a bit

Thank you for the quick response Rick! So, you really think that's it huh? And what you're saying is the wire-up directions should be modified to include this caveat. Thank you again! --Jim <insert

Here's an outline of how to get dangerous with LTSpice: Download the free LTSpice from Linear Tech: ? ??http://www.analog.com/en/design-center/design-tools-and-calculators/ltspice-simulator.html It

Also, once you have the files extracted , it should have created a sub directory. That sub directory name is the same as the main file. Another thing that ishelpful is. If you try to load any .ino

Make sure you have the 4.7K resistor installed in the keyer circuit per the wiring diagram attached Rick KN4AIE

Hi everyone, I thought I'd posted this message already but it hasn't shown up.. so here goes again. I'm assembling my uBitx and I'm having an issue when I power it on.? So far I've only wired up the

If it sounds muffled the carrier could just too close to the filter. You might see to move it 500hz further

Tim, I'm not one that takes easily to new tools,? but found LT-Spice easy to get started with. Changes can be hacked in and checked faster than it takes for my soldering iron to heat up. You can

The money has been deposited on Paypal for a kit of each (AGC and anticlick) 73 Kees F1BFU Gilles 2018-06-07 0:28 GMT+02:00 Kees T <windy10605@...>:

Lowered the gain and the spur got worse? As I have said, some of this can be counter-intuitive. There's a lot going on. Also curious that you found need to swap out the voltage followers at Q21, Q22.

No problem.

Ralph, I personally like the narrower bandwidth. I do get comments that the audio is muffled but it seems to get through ok and the narrower bandwidth is a good choice for receiving on a crowded band.

Jerry, One of the reasons I want to put it before Q90 is to make it easy to access and test. If you'll remember I was the first person on here to show spectrum analyzer screen shots showing how the

Allison is shooting for a clean and even 10 Watts out. I would be happy with a variety of 5 to 10 Watts if that reduced the mod count significantly. Some in the group have reported nearly 20 Watts

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.