Pure signal advance

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  • Updated 4 years ago
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Pure signal now has the ability to auto set. Yes any value watt out. automatically. One of the concerns of flex I believe was this function . It made it difficult to provide this event to everyone because to use it you were constantly re adjusting.

With this now proven acceptable this major barrier was removed.

Again hoping that flex re consider this adaptation.
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np2g

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Posted 4 years ago

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KY6LA - Howard, Elmer

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@NP2G

You have been beating on the drum of Adaptive Pre-Distortion (APD) for quite some time now.


Full WAN Remote is NOT here yet.  It will not be here until V2.0 Software.

Full WAN Remote is far more important to far more people than APD, particularly since so few people are even aware of ADP, let alone wanting Flex to divert development resources to it...

You just need to look at the huge buzz that was generated for Flex by the release of the Limited LAN Remote feature and the Myriad of private efforts to simulate WAN Remote via VPN until Flex finishes WAN Remote.  You do not see anything like that sort of buzz or interest being generated by APD...

At the Visalia DX Convention.. All eyes were on the Remote Ham Booth, the KX0 Remote head and the Flex LAN Remote.   Even the Japanese were touting different forms of kludged WAN Remote...

Nobody was even talking about or showing any interest in APD.. In fact the only APD presentation I have seen in the Past Year was Warren's at Friedrichshafen.

if you looked at the recent QST, you will see that Flex already produces a pretty clean signal compared to the rest of the market.. so APD will be just a fine polishing on top of a more than acceptable product. 

I would also suggest that there are many other much more important improvements such as improving contest work flow by putting spots and worked spots onto the waterfall (my personal second most important desire after Remote WAN) that clearly will generate far more sales for Flex than an esoteric improvement like APD which few people understand or want.  

Clearly Flex needs to finish the very popular Remote LAN before they even consider diverting resources to other less popular projects...
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np2g

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Thank you for your comment.
Howard in their own words they are very close. .
Since I have the ability to use this pure signal each and every day. It impacts the bands so significantly. For good. Everyone should now be asking. This pure signal is all over the world
Making a better band neighbor

And this again is not a bait and switch effort.

Why can't we have a great clean signal. Why can't all of us benefit from using this process .

Our transmitter has not been touched in electrical time. forever.
No one should corner clean imd transmissions

And if we do not keep asking. When or could becomes never.
The last time I asked. The main reason was that pure signal was hard to user implement. Well it isn,t any more.
I feel it is time for anyone who for the multiple reasons and more that have been listed speak up and voice yes. .
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KY6LA - Howard, Elmer

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The Last Time you asked the answer was the same as now... It was not that it was difficult   ....it will happen but not before a heck of a lot of other much more desirable and marketable features happen first...

BTW..  I suspect that the only ones who really give a damn about it are the audiophiles and the spectral environmentalists.. sort of a subset of our California Tree Hugger population...  Personally I would love to play with APD but then I am a born again tinkerer....

A significant number of contesters I know would rather splatter all over so as to drown out the competition....
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np2g

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I never thought of being a spectral guy. And I would try to never splatter intentionally
I know it does absolutely everything I listed. And this is a good thing .
My difference now is I am asking others to step up. .

and up to yesterday it was difficult to implement auto has changed that for everyone. This was a serious consideration for flex. And now this is gone.
.
Howard if you call pressing the auto button tinker.ing. That now is how easy it is.

And flex can implement this now
(Edited)
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Lee, Elmer

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Why do you make it sound like Flex is against pre-distortion?  Clearly they are not.  The radio's hardware was designed with pre-distortion in mind.  

Warren started playing around with the concept of pre-distortion back in 2006. Why did it take until 2014 to realize a viable system and until 2015 to realize a system that is automatic?  Is his system the best system?  Does his system effect or degrade other system variables or other modes?  Does it port readily to the Flex hardware given the vast difference in design approach between the radios?  Clearly this proposition took 9 years to solve in the PSDR world and it required hacking the radio, so why does it need to be solved in 10 minutes in the Flex world?  Remember PSDR which was originally written by Flex has been around for more than a decade.  It's as you like to say very very mature.  This means not much is changing in the software and fringe things like pre-distortion can be addressed.  

SSDR has been around for only a couple years.  It is in its rapid growth phase of development and many much more basic things like the API's and waveform and networking which will have a much more dramatic effect on future development needs to be addressed before pre-distortion.  If one wants the radio to blossom in the future one needs to consider the infrastructure upon which the blossom will be built today.  One does not want to make ill considered decisions.   My guess is pre-distortion will be introduced when the time is judged to be right given the state of the art and the state of program development.  In the mean time the audio chain in the Flex is already very clean and quite usuable.  I'm very pleased with the state of development of SSDR.  It's performance has improved dramatically in the year I've been involved with it.  

73  W9OY
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np2g

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Again I am not. Intimating flex position

I am asking everyone to also ask for it to be implemented the sooner the better ,
Please. I already have pre distortion. It is fantastic. It does exactly what I have listed. And now with auto it makes it absolutely a piece of cake to use.

it was just fine manual. But auto it,s sweet.

And this auto concern was. One of flexes concerns.
If you believe remote is absolutely important. This implementation effects us all
I went from reading about pre distortion. How it actually functions and what it was suppose to do to actually implementing it. And realizing ALL the benefits. For me I have it for all of flex owners it will be as fantastic as what I have found using it.

Please everyone who wants to reduce splatter or who wants a cleaner audio or who wants their transmitter to place more power in their pass band please ask or say yes .
(Edited)
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Joe, KQ1Q

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np2g"We are the caretakers of our bands why not reduce the interference. Why not make our transmitters a good neighbor...It impacts the bands so significantly."

I just had a QSO with an Anan-200D with PureSignal a few minutes ago. His signal looked really great -- band edges were like a knife edge. However the Elecraft K3 and Kenwood TS-990 on the QSO *also* had good waterfall patterns. Using the incredible FFT resolution of the Flex 6300 display, if I magnified it enough the Anan looked cosmetically a little better, but the only people who could see that would be other SDR users with high-res displays. 

Whether Flex implements ADP in two months vs twelve months would have virtually no difference on the bands. Most FlexRadios I see have pretty clean signals as is. The Flex 6000 user base is a small % of HF operators. So you are talking about a subset of a subset: The Flex 6000 users (as a % of total HF operators) who don't have clean signals and who would be improved by ADP. It is a further subdivided by temporal subset, since Flex will ultimately do this, so the difference months vs maybe a year or so. That is truly microscopic against overall HF volume, and definitely would not "impact the bands significantly". Given limited development resources and a higher priority list of work items I don't see a rational reason to drop something else for an early ADP implementation.


(Edited)
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Bob Wright, N7ZO

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Joe, I concur with your on-the-air experience and your conclusion "Given limited development resources and a higher priority list of work items I don't see a rational reason to drop something else for an early ADP implementation."

NP2G, I like the idea of improved transmit distortion too, but there is a long list of other features and capabilities I would rather see first.  But, there is nothing wrong with remaining enthusiastic about this.  :-)

73, Bob, N7ZO
(Edited)
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Lee, Elmer

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PSDR_mrx software will not work in the 6000 series radio.  Neither will the GPL license allow Flex to just pluck the software out of the air and use it however they want.  There are consequences to using GPL software Flex will not likely wish to engage.  Flex knows conceptually how to do pre-distortion, even automated pre-distortion.  It is not a mystery and never was. They invented WBIR (Bob and Eric) back in 2009.  WBIR was essentially a pre-distortion algorithm used on the receiving side of the SDR-1000, and was actually a quite elegant solution in my opinion.  So once again we are back to: they will implement when it fits their production schedule.  Works for me.

73  W9OY   

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