While my adventures into HF radio are entirely new, it does not mean I can't identify a far superior radio design and method from the onset. Flex radio systems process the radio signals in the digital spectrum, vs a typical transceiver that converts it. Those that simply dismiss this style of radio likely are speaking from a preferential perspective. While this opinion is just as valid as any other one, it's simply an opinion and is not necessarily based on realistic comparison. Everyone is entitled to their preferences, however users should be able to recognize their own bias, or ignorance of the larger picture or lack of experience with other methods, technology or exposure to other radio systems. No radio, device or technology does everything 100% perfect. To say a device is sub par because it does not fit a persons narrow view of what is a good system, is itself defective ideology. To dismiss a product because it does not excel in one specific, narrow area is as logical as telling your wife that while she is a stellar cook she is unfit for your company because she fails at cooking steak. You will likely live a lonely and boring existence with this style of rationale.

If any of this makes you even a little curious about how real "SDR" radios work, I will let flex radio systems F.A.Q. speak for itself. If you click HERE you can educate yourself before you decide by reading the Flex FAQ that describes everything quite well.
 

What are the advantages of a FlexRadio SDR over a traditional transceiver?
There are many differences:
DSP code is not proprietary or "fixed" in firmware.
DSP hardware can be upgraded easily
New radio or operating features are easily implemented with a software upgrade
Radio is constantly being improved. It never becomes obsolete
Single step or conversion from RF to baseband audio
Low noise due to eliminated multiple IF conversions
Low distortion - distortion is introduced at every conversion stage
Does not require roofing filters to improve performance
99% of the signal path is entirely in the digital domain

Look at the above image from a $650.00 5w Flex-1500 SDR radio and ask yourself the following question:

" How much would I have to spend on a traditional radio to see this much of or ANY band scope in an HF radio?"

You will likely spend several thousand dollars. I'm not going to do your homework for you, however one should seriously consider their options depending on their needs. However taking OUT the variable of a mobile installation where an Elecraft KX3 radio with a control head will of course be a LOGICAL choice, the FLEX units are likely superior to the other options. Good luck in the HF world that you choose with whatever flavor you choose. There is always more than one way to accomplish the mission.

HF Radio links