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More mumbling about APP… operating the amp at less than 25% of its average available output gives better IMD. DUH. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

Well this is a load of crap. It’s a good way to cover the problems up… that’s all. Any RF engineer will tell you… stop it early in the design… not at the tailpipe. Dr. William J. Schmidt -

There’s that “Class-A” thing again… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner –

fyi Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton – J68HZ

I’m trying to get mine working and it appears the first step is to add the driver for the CYUSB chip to windows… but for some reason windows deactivates it and I can’t get past that. Do you know

yes !

Anyone here have a RX-888 MK-II SDR working? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch - K9ZC Staunton, Illinois Owner -

Gary, I’d like to see more here on this subject… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois

I am seeing results like this using a Radioberry driving your 20W amp. Gary W9TD

Interesting… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton –

And these are not the kind of parts that even the most skilled builder would want to solder onto a board. If I ever do this, the boards will come pre-populated. They are 3mm x 3mm. YIKES! Dr. William

They seem to have a large price drop (~25%) when you go from 1 to 10 units...almost in half when you buy 25 units. Maybe pre-orders would help you cut costs. Jack, W8TEE

Ah noise, For my prototype, the first thing to do is to - somehow - quiet down that display. It makes a grinding noise; chunka-chunka-chunka-chunka. Sometimes, I can even hear it alongside the band

ARG!!! LT3042 and LT3045. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch - K9ZC Staunton, Illinois Owner - Operator Villa Grand

I attended an online seminar/ instruction/ discussions today (with a friend of mine) regarding power supply devices and I learned a lot. First off 7805 voltage regulators are very noisy. in fact

I presented the Right-Left Rule in the C Programming Guide book (1982) and there have been lots of examples written since then. This is a list of example you might use to test your understanding of

The TCXO-equipped T41 may have its faults, but stability or accuracy is not one of them. - Jerry

Bill, If you don't get any body else, I do have a spare display I can run at 3.3v and just change my main board J8 jumper to run the display at 3.3v.? Not a problem for me, I thought that 90 degree

Have a look at these two notes. An easy comparison of the K4 at $7K vs the T41… not completely 1:1 but close enough…. From

Didn't see you on had 3.3 version, sorry.