Is there anywhere that I can get a thorough explanation of the technology behind the Flex 6000 Series???

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  • Updated 4 years ago

I was chatting on the radio the other night with a guy that I have a great deal of respect for. He has been an Electrical Engineer, mostly focused upon antenna design for more than 50 years. He has been a Ham for even longer, and has been published numerous times in QST.

He seems a bit dubious of some of my claims for my 6700. When I mentioned its panadapter's bandwidth, it was his opinion that it used a local oscillator somewhere, and if it was using silicon alone, my machine would be close to melting from the heat and probably have the price of a military project.

I told him that it was direct conversion (which he called a zero IF frequency), and I only wish that I had more facts at my finger tips for the discussion.

I am not an Electrical Engineer, all that I have learned about electronics and Amateur Radio have pretty much been self taught.

I have read the brochures and the short reviews of the technology and of the 6000 series itself. Is there anything more extensive and detailed about the workings of the 6000 series?

I realize there are a few books on SDRs in general, but I really would like to be able to explain how my beautiful 6700 really works to a guy with an Electrical Engineering degree (if possible).

Any thoughts? Any ideas? Any source for more than the usual PDF files???


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Roy Laufer

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Posted 4 years ago

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KY6LA - Howard, Elmer

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Here are links to a few of my presentations

How to build a Quiet Station

Modern Radio SDR-101

And still a bit rough

Four Generations of SDR

The last presentation attempts to explain the difference between true SDR and their different generations vs Superhet with DSP radios such as the K3 which incorrectly claim to be SDR's so as to be able to market to the uninformed....
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Roy Laufer

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Thanks a lot! I will review them tomorrow, although I am sure that I reviewed them when they were first released.

Going over the same material can be useful. For some reason I got Direct Conversion mixed up with Direct Sampling after the last time I researched the subject.

I ordered a more technical treatise on the subject, written last year, from Amazon. I just hope the engineering equations don't cause my ears to bleed too much!
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Burt Fisher

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Totally impressive presentations