开云体育

Thanks Paul. I wanted to try it there to see how well it worked.? Going in, I wondered to myself how I'd know if it started to oscillate - it wasn't hard to notice.? hi hi As it is, turning the pot

One other question: does the hiss change without the antenna connected?

If you have access to an oscilloscope I would check that you are getting all three clock signals out of the Raduino.? I had checked mine at the Raduino to uBitx board connection on pins 3, 6 and 9.?

No nothing Sent from my Huawei Mobile

I used the technique that Jerry describes in his last paragraph to remove and replace the relays in my uBitx with the Axicom's. The relays almost fell out of the board when I reheated the pins using

Jerry Agree wrong tool Dom smd work. Right tool for relay removal and leaded work. I have a rework station for smd work Art

Do you hear loud popping noises as you install antenna to connector.

I have never used a solder sucker on surface mount parts. I don't think I would find much use for that particular tool, even on through hole parts. You do want a soldering iron with a very small tip.

I have soldered for 55 years Have used the bulb style with the teflon tips. It has only been recently that I have tried working on sm parts All my equipment has been too big. I saw the post by Art and

Good advice Bill Cromwell! And maybe he can find some ham somewhere he still knows some things and can listen to him. Or use some waterfall and a CW Carrier somewhere to allow him to plot his own

Hi, JoshuaClough4 starts his post with his SDR. I have been playing with SDR a little and with "legacy" radios for a long time. That SDR can be and probably is being pushed *hard* by rf being

I don't have a bitx40, but seems you should set BFO further in a way you have only the 500-2500hz bandpass.

Please use the site for ordering -- David ?N8DAH Kit-Projects.com ( http://www.kit-projects.com ) Shop is open! ( Https://Shop.Kit-Projects.com )

CW kits are in but in limited supply, I do have more on the way to cover further demand. ?73 ?? -- David ?N8DAH Kit-Projects.com ( http://www.kit-projects.com ) Shop is open! (

I don't see a post yet that clearly spells out how to take care of the spurs. This should include pointers to specific parts, show how they get mounted to the board, include fixes for both the

Respectfully, the point of being a ham is to learn about electronics and RF.? The point of the BITX radios is that we have a base radio to mod and explore and learn from/with.? Toroids are really

I think there was brief mention by somebody in early 2017 about that spur getting transmitted now that Brian has jogged my memory.? But mentioned only once more or less in passing, and then it was

Have you seen QST’s review of the BitX40? Seemed to pass their analysis.? I think that was with an unmodded radio.? Guy WB7SZI

Mindlessly twiddling RV1 on the Bitx40 (or RV2 and RV3 on the uBitx) will blow the IRF510's. I assume you were watching IRF510 drain current when you did the adjustment.. If not: Power down, turn that

Sean do check to make sure you don't have a short on the antenna connection.? tuning around one or more bands - do you find evidence of signals that you can tune in?? this would be a BFO that is