[Elecraft] Sherwood's receiver performance table updated

Robert Vargas-KP4Y kp4y at yahoo.com
Tue Apr 26 21:42:30 EDT 2016


> I'm curious why is direct sampling SDR's like the 7300 are supposed to be the second coming why Icom stuck with the traditional superhet architecture on it's "flagship" 7851? Maybe they realize the technology is at least 5 years away from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC overload



What suggests you that direct-sampling SDRs are 5 years away from being competitive? Elecraft will likely have moved to this architecture in less time than that to remain competitive. I suspect that one of the reason Icom stuck with the superheat on the IC-7851 is because this product was already in production by the time they made the decision to design a direct-sampling SDR. Now this is all speculation. What matters is that many of us who have high-end direct-sampling SDRs haven't experienced the overload issues. I don't doubt some operators have (maybe W4TV one of them), but these are probably isolated case. BTW, all receivers have weakness (every design has trade-offs), including the ones designed by Elecraft (I can hear images on KX3 sometimes). Just that you know, K9CT has one of the finest contesting station in the US. He has switched to direct-sampling SDRs (Flex-6700). Just ask him if this architecture is 5 years away from being competitive.

73,
Robert-KP4Y/W4


Sent from my iPhone

> On Apr 26, 2016, at 8:08 PM, Kevin Stover <kevin.stover at mediacombb.net> wrote:
> 
> Ditto we still don't use them.
> Our users have a choice of laptop or iPad/Surface other than a desktop thin client on our VM Ware network.
> 90% choose the Win7 laptop. They're more expensive, slower, and break more often than the thin client but not as often as the iPads. The Surface's are new so no experience base with them yet. Our hardware group absolutely hate touch screens. I'm a Network Engineer...I have no use for them either.
> 
> My brother does IT for a school district that equipped all of their middle school kids with cutting edge iPads. 700 of them. My brother had to get good at replacing the very expensive coated touch screens that the evil empire said mere mortals couldn't replace. He got no help from Apple other than expensive parts. That experiment lasted three years and they switched to Chrome books.
> 
> I guarantee as sure as I'm sitting here *that touch screen will fail within a year...if not sooner*, and you've got no chance to fix it yourself. I can order parts from Elecraft for all my rigs and fix them. No sweat.
> 
> I'm curious why is direct sampling SDR's like the 7300 are supposed to be the second coming why Icom stuck with the traditional superhet architecture on it's "flagship" 7851? Maybe they realize the technology is at least 5 years away from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC overload.
> 
>> On 4/26/2016 5:28 PM, Clay Autery wrote:
>> Coat it however you want...  Doesn't stop dirt and grime being put on
>> the screen possibly scratching and/or gooping up the corners and edges...
>> 
>> I've been in IS/IT for 25+ years...  Screens are not for touching.
>> 
>> Bottom Line...  I'll stick with buttons, dials, and switches, thank you.  :)
>> 
>> ______________________
>> Clay Autery, KG5LKV
>> MONTAC Enterprises
>> (318) 518-1389
> 
> 
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> R. Kevin Stover
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