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I, a 73 y/o ham of 63 years fully agree. I love this new radio stuff but getting it to work after it is built is sometimes a head scratching problem even with the help of all my .io group

Are you kids still doing this. I thought you would have learned by now that QRP low power SSB is what to do if you don't to be heard. Or am I missing your point? If you could you should at least try

I would add that Si5351 could be directly to drive a harmonic mixer. A harmonic diode mixer is singly balanced mixer (like the one in the bitx transceivers) except that there is an additional pair of

there are just a few challenges and many ways to meet them in transiting to 435 MHz, VHF is just a milestone along the way. The idea of making something on VHF/UHF is no longer economically justified

Thank you very much.? This is very helpful, easy, and it works well.? -- Dave Beal AE6RQ

Thank you all for your inputs. Much appreciated. I will read/watch and digest. Rod, the current software does use the serial interface as I had to assume the display was not working and since the

Update: I had forgotten about the cat.ino file . . . so I guess the question should be - any plans on making this functional? Any fixes for the timeout error?

Is there any method of keying the uBitx thru WSJT-X with the "stock" firmware? I'm not interested in full CAT control, just simple?keying - ?using USB cable between PC and uBitx to control ?PTT.

Here's some old threads (rants) on this: ? ?/g/BITX20/message/19453 ? ?/g/BITX20/message/21282 ? ?(

Ya know, diagnostic software is a good thing and should be done, but Hans really got it right with the QRP-LABS QCX by building several tools into the kit… like a DVM, signal generator, Frequency

Hi John, Capital idea! Some thoughts: 1. the Nano? can send data back on the serial port to help diagnose a rig that is not working. ??? Perhaps report the status of PTT, and the analog

Respectfully, as Allison points out, it's not just the PA active element that will be the problem. When your frequency width is an order of magnitude, e.g. 14Mhz to 144Mhz, you begin to run into all

All: I think Chuck Adams has the right approach to this. His video series on YouTube for building W8DIZ's 1 Watter (1Watter Transceiver Build, Phase 1 by K7QO) has a lot of good stuff about kit

I've never been able to get over 25db of carrier rejection according to my Rigol DSA815. Not unless I move the BFO so far that signals are unintelligible. If you adjust by 6db to allow for PEP

Another member of the group gave me this advice. Tune to 7074 using LSB. You should hear nothing. Then change to USB and you should hear all kinds of psk and other digital modes. If you hear these

Yes Howard, But still, that triggered an idea, with a proper voltage divider and bias circuit (4 components) we can have a probe connected to the spare analogue input.? It should be sensitive

Two things result in carrier... One is the BFO too close to or in the filter passband, it should be 6-10 db down the edge of the filter. Blaming the filter will not fix that, unless its seriously

Allison, For a power chain of about 5 watts that goes from 50 mhz to 500 mhz, what would be your recommendations? The RD15HVF1 seems to be used frequently at 435 Mhz. Are there any broadband

Several things, like others have repeatedly pointed out the uBITX is very unsuited for FM or AM. FM needs wider filter and far more gain to get the needed limiting action.? Its not drop in its

http://tinyurl.com/y9zpmp3t _._