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Arv, The repetition of material has reached the level of just one more time for something on the order of N>5. When I get a chance I'll put it in the fine wiki. Does anyone for spurs over 20mhz

Bill You are probably correct. I do exchange emails occasionally with Farhan but he has been quiet about what is next and when that may happen. I think he has lots of other activities going on in

Hi Arv, The real issue about those tunable traps is the raduino won't tune them. Or can it!? Much the same as a tunable preselector. Or plug-in one-at-a-time low pass filters. Doable yes. Make

Bob, Great post! Guy WB7SZI

The TDA audio ic used in the earlier uBITX was designed to be used with 32 ohm headphones. The new version 4 has a different audio output stage that should be fine with 8 ohm and possibly 4 ohm

Kees If not already done, someone needs to tell Hans that he is about to get a lot more orders for QRP-Labs filter boards. Or...are you going to make bare boards available in the same form factor so

In your case I would really recommend the BitX40 kit: Low-cost, rock-stable and FCC compliant. With a few minimal mods you can add most of the features that commercial rigs have. See

Hello Ripley, The first thing is that all this still needs to be tested to see how well it works by someone with good test equipment. Warren volunteered since he has a very nice setup and I'm sending

George, K1DX Well said ! Many of us feel the same. Benefits of this rig far outweigh the griping by others in efforts to convince others to not purchase the rig. Arv K7HKL _._

?Robert -- i see that you are in Lakeland. Isn't that somewhat in Sumter county? I thik there are a bunch of folks into emergency ham radio commuications down there. Anyway, that Alnico HF radio

Allison I have been following all the discussions but there is still some more definitive information that us neophytes might need, or think we need. When you say " *80m harmonics, use external low

Allison Interesting. I have been experimenting with resistively loading series LC traps and find that they can be made broad enough to cover some tunable spurs without seriously decreasing the

Not exactly HRO style, but makes stage matching/measuring faster and easier 8 pin dip socket ..Use another socket as a header for transformers Also, too test points? (trim off unused pins) Jim

This thread reminds me of something I've been told by hams at least three or four times in the last 38 years - and it brings up an issue that I've faced throughout those years.? Some of the posts

Hello Kees Trying to decide the best LPF filter fix for my needs between what you are doing and Gordon’s implantation. So let me play back your approach as I understand it. The LPF plug in boards

Hi Fabian, Recently you asked for help with calibration of your uBitX. Did You get the help you need? I did not reply at the time because I am not sure how to approach it with you. I think other

Just converted your board files to RS274-X.? There were a couple of little frigglies that the conversion program didn't know how to handle. Be happy to send you a copy if you like.? Also saw your

Hi Arv, It is more likely the work that is being discussed and done here will be incorporated into a new version and not squelched the new version. 73, Bill KU8H

Found the issue with the 'D' files...converted them...ran the X files thru FreeDFM with good results. I think we can color this one done. 73, Lyn WA4GEH -- *"You see, wire telegraph is a kind of a

Hi Warren, There are all kinds of abuses that are possible. But the question was about the digital modes actually being SSB signals. I only addressed that. It turns out that music does not go well