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A board + bag of parts kit for bitx actually sounds kinda fun :)

Jerry Farhan first built his BITX-40 as a board-and-parts kit for a local Indian ham club. I think that is the thru-hole version that is being discussed. It was success of that kit that probably

I have no idea what an hfsigs first version, throughole type would be. Perhaps I missed it. Could you give a web link to something that describes the through-hole board you have? First bitx version

I need wiring up diagram images of? BITX40 First version (Through hole type). It was replaced with smd version in hfsigs website and i am unable to retrieve it from my pc.

Hi mike any chance i can get your notes on your build? i have just got the boards made cheers tony? vk7au

First step: compare circuit diagrams. The BITX40 , if the VFO is disabled by removal or non-installation of the tuning coil, uses the oscillator as an emitter-follower (the capacitors at the base can

Any one help me to guide? 'How to add Raduino/dds vfo in earlier through hole version of bits40'. Thanks in advance.

Ok, got it. ?Looks like the SI5351 that was required before is no longer needed an just the pinchangeinterrupt is the only thing needed. I think I’m good now.? Thanks for your help guys.? Curt

Hi Mike -? Thanks for this. I have spent the last few hours debugging this and I think the conclusion that you reached in the Antenna Analyzer is probably the same conclusion that I reached in my

Thanks Ashhar...

And that file (README.md) is included in the .zip file along with the 'sketch'.

Since the VFO and Antenna analyzer are closely related you may find this email chain useful. Mike K5ESS Sent: Tuesday, November 28, 2017 11:50 To: [email protected] Subject: Re: [BITX20] AD9850 Issue?

OK Gert, good to hear you found a way to work around the situation. Strange though that a pull up resistor isn't sufficient and that you need to hard wire it to the +5V rail. 73 Allard PE1NWL

Instead, you can use 4K7 or some such pull up, Please check. regards Sarma

Hi the problem is solved in an brutal amateur way : the solution with a resistor did`n work so I connected A2 dirctly to +5V. Now the ability of calibrating the offset is lost but that?s a thing I

https://github.com/amunters/bitx40/blob/master/README.md

thanks for taking the time to go through that!? gordon ________________________________ Sent: Wednesday, November 29, 2017 3:38 AM To: [email protected] Subject: Re: [BITX20] Help me understand the USB

Lets take a concrete example. An lsb signal generated at 12 mhz carrier, now considee that it is modulated with a 500 hz carrier, it produces a signal at 11,999,500 hz. If the modulating carrier is at

Can someone answer this question for me. The latest sketch 1-27-2 has switching for UPS and LSB by pressing the function button (VFO sel. a/b) if I remember right. How is this accomplished by the

As I had mentioned above this is on a different machine so I’m starting over fresh. That’s why I’m looking to find out what libraries need to be installed.