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During the first setup I have calibrated the frequency readout. The behavior was as described. Connect A2 to GND - message on screen "Calibrate". Keep holding A2 to GND rotate the tuning pot for

Following possibilities are to be considered. We can divert? the back-lit circuit of LCD to unregulated voltage with higher series resistor. The datasheet for7805 indicates around 3V . Now we have

So, last night I did some meaurements. Room temperature at 18 °C. LM7805 goes as high as 52°C with 13.8V at power feed. Temperature drops to 49°C when at 12.8 V (that is the votage of a fully

?I already did this. Doesn't change anything. Do you think it is possible to buy just the pcb with the nano on it? Don't need a 2nd display. If yes, what would be the difference in the price?

I found this helps when fault tracing.

A document of tips for testing.? I have waveforms for receive and transmit.? Not mine but gleaned from the net.

Hello Don, Does your kit look like this It's known as the Hendricks BitX20a kit.?? This is the one I have and modified it to work on 40m.? It's a great kit but it is very very touchy about the

whoa, hans, what an incredible find and a neat hack. i tip my new pluto 937 with programmable tempurature control to you! ok, who's first to crack this hack? - f

Farhan, Joel, all, Sorry for the long post - but if you have an interest in this topic, please do read. IF the issue is in the Si5351A firmware configuration (not a hardware matter of more smoothing

The version I placed in the files section is the current Raduino loaded version, but just minor text changes to suit the new si5351 library.? I'm not aware of any other 'official' version. The

I've had good luck with Tayda. Their deliveries are much faster than China. Someone told me they have a distribution warehouse in the US, but I don't know that for sure. Jack, W8TEE To:

Hai Farhan What about the TX trouble shooting? Nothing seen yet VU3CGL Leons

Missed the 2nd link. Same company. Sent: Tuesday, January 31, 2017 3:50 PM To: [email protected] Subject: Re: [BITX20] 2 and 3 pin connectors used with Bitx40 sad board I found this shop very

If that is the same company as Tayda Electronics, I buy from them at least once a month. They don’t have everything, but they have great prices on what they have and good reliable

It has been a few years but I bought Molex connectors from Mouser when I was building a Norcal FCC-2. Allen, W9DZ

If you can trace the circuit, try using the technique shown here http://bitxhacks.blogspot.in/2016/12/troubleshooting-bitx40.html though it is meant for the bitx40, there is no reason why i wont work

Hello all, Looked through the archives and see many complex (for me) topics covered, so this one should be simple -- for someone else on this list, that is. Built an earlier, through-the-hole BitX

The wait for China goods is extra long right now because of the Chinese holiday. Most folks don't go back to work over there until Monday.? I bought several from Digikey for my scratch built Bitx.

the github has the code that is being loaded on raduino from hfsigs. i hope others making mods are going to push their branches to github as well. - f

When I was Arduino playing a lot the DuPont jumpers used to hook everything up always drove me nuts.? It seems you never have enough of the colors, lengths, etc. that you want. I finally decided to