开云体育

I think you're right, probably blew the LM386. And nothing else. Clipping leads and just leaving them in place sounds fine, or could? heat them up and pull them out one by one using soldering iron

David :? You did remember to install the 0.1 uF disc cap across the tuning pot (where the yellow and violet wires attach) ?? Michael VE3WMB? P.S. I do also recommend upgrading the Raduino to use

From the photo, looks like a burned trace from C6 to L3. From the Bitx40 schematic it's hard to imagine how that might have happened. That node is isolated from other parts of the rig that might have

I know there was several posts about cureing the shifting frequincy on the BITX 40 while transmitting but I can't locate them. Could someone kindly show me the information on how to lock the VFO in

Since you do not have a watt meter, and you have a multimeter, you could build a rf probe. You can see the rf voltage and calculate the wattage. Here is a link to one you can build. It is very

I heard someone faintly. My my TX reach is better then my radios ears. Joe KD2NFC

I doubt there's a hardware fix that solves this, best to figure out how to load one of Allard's sketches: ? ??github.com/amunters/ The bitx40_raduino_v2 is more capable than the original bitx40

I have a couple of old s meters and want to add one to my bitx 40 (I got the board from rf signals a couple of weeks ago).? I'm using the VU2ESE AGC circuit.? I know that most people are adding a

Ron, it is just one of the Arduino examples. Where is your software located/named? -- 73, Yvon NU6I

After some other testing on a BitX40 that was working well, it is likely that 12v (or even 24v) touched one of the speaker leads. Now I have essentially no audio out from the radio. On very strong

The first SMD soldering tips were had at fritzing YouTube . https://youtu.be/SDr1khlbvPY I then watched Rossmann ( https://www.youtube.com/playlist?list=PLkVbIsAWN2lvK9wLg2pwcXJLut_-_P9G4 ) and his

thanks for the short qso John...in the log as well. KD2NFC Joe in NY is calling CQ on 277 but he is not hearing as well as he's tx'ing. Keep trying.

I received my uBITX today. Ordered on 18 Dec. It was shipped on 7 Feb. FWIW I never received any email confirmation for having received my order or that the unit had been shipped. Just happened to

John...can you try 7.274? qrm fm 278 getting worse.

Alas, in my curiosity and inability to leave well enough alone, I came up with a brilliant plan to determine why I cannot get more power out at a higher PA voltage. Again, working on the suspicion

I heard Tom VE3THR for a moment. -- John - WA2FZW

calling CQ on 277 but hear qso on 278 at times.

I'm listening on 7277. I can hear one station way down in the noise. Mike WB2BLJ

I'm on 7277. Hear someone very weak! -- John - WA2FZW

Marco, Thank you for your answers. I still able to receive, and it looks like sensetivity of the receiver goes up now. But i have no tools to measure it. I adjust RV136 to the top (as drawn in a