W9OY on P3
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Re: W9OY on P3 [END of Thread]
 
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The subject of computer speed is somewhat relavant to the K3 however. Why is
this off topic? Most of us interface computers with our K3s or is it the Flex Radio that's off topic? Can we talk about computers as related to K3s on here? I've gotten some good tips from this thread. Steve N4LQ ----- Original Message ----- From: "Eric Swartz - WA6HHQ, Elecraft" <[hidden email]> To: <[hidden email]> Sent: Friday, February 19, 2010 8:39 PM Subject: Re: [Elecraft] W9OY on P3 [END of Thread] > Folks - We're drifting well off topic and this thread has more than > passed posting quantity limit ;-) > > Let's end it for now. > > 73, Eric WA6HHQ > Elecraft List Moderator > ---- > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2698 - Release Date: 02/19/10 14:34:00 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Greg - AB7R
Realize that in the 2010 ARRL Handbook that the K3 took TOP honors in the
QRP catagory, TOP honors in the under $2000 catagory, and TOP honors in the over $2000 catagory, ALL THREE CATAGORIES. 73, de Jim KG0KP ----- Original Message ----- From: "Greg" <[hidden email]> To: <[hidden email]> Sent: Friday, February 19, 2010 6:25 PM Subject: Re: [Elecraft] W9OY on P3 >I agree Bob. The Flex 5K is a nice radio. I "had" one myself for a > brief time. It really comes down to user preference as with all things. > > Of course you cannot beat the K3's receiver performance so that you > cannot dispute. But if someone is so hung up on computers then it is > not a bad option for them. The main things I did not like about them > were.... > 1. I just don't want to rely on a computer being so vulnerable to > problems. If you have a computer problem then you have a radio problem > too. With any other radio a computer problem does not induce problems > with the radio. > > 2. Just did not like the UI having to bounce back and forth in a > contest situation between the logging program and the radio window. Too > cumbersome. > > 3. While the CW performance was improved it was still nothing close to > the K3. > > 4. Too many child programs you had to run in addition to PWRSDR for it > to do certain things. And while they did work, it was just one more > ingredient in the pie where something could go wrong. > > Chow... > > 73 > Greg > AB7R > > > On 2/19/2010 4:07 AM, Bob Naumann wrote: >> Let's be reasonable though - the Flex is not a piece of junk just because >> it's in second place on the Sherwood list. >> >> There's a whole lot of good radios behind the two of them further down >> the >> list. >> >> I think this W9OY, because of his obvious pro-Flex bias, should be given >> the >> same respect as W2OY was in the "olde days". (He was the "CQ CQ, no kids, >> no >> lids, no space cadets" guy). >> >> W5OV >> >> >> -----Original Message----- >> From: [hidden email] >> [mailto:[hidden email]] On Behalf Of Hector Padron >> Sent: Friday, February 19, 2010 6:01 AM >> To: juergen >> Cc: [hidden email] >> Subject: Re: [Elecraft] W9OY on P3 >> >> W9OY says: >> "Elecraft had their little answer to the pan adapter, what a joke. It was >> a >> little screen maybe 9" and made the radio look like a toy. The quality of >> the display was horrible" >> >> What can you expect from a Flex radio user,they all will attack our >> K3's,they all will critize our radios,they feel those Flex radios are >> the >> best in the world and nothing will be better for them,its a human nature >> to >> defend what we have but I would ask them, why Sherwood lab has the K3 on >> top >> of the list and then the "Flex 5000 takes second place? I will ask them >> to >> answer that simple question. >> >> AD4C >> >> "For a refined ham it is compulsory to own a k3" >> >> --- On Fri, 2/19/10, juergen<[hidden email]> wrote: >> >> >> From: juergen<[hidden email]> >> Subject: Re: [Elecraft] W9OY on P3 >> To: [hidden email] >> Date: Friday, February 19, 2010, 10:04 AM >> >> >> >> Hi Julian >> >> >> Looks like a jealous Flexradio fan. >> >> So many Flexradio users have PC problems and hangups. I would not go near >> this concept. At least if you plug the P3 in it wont hangup. You >> certainly >> wont have to spend months seeking out a good motherboard that wont >> cause >> hangups or stutter. >> >> I dont see Agilent bringing out test instruments with a PC for the main >> interface. They dont do this for for very good and valid reasons. Ham >> radios are exactly the same in nature, they need a front panel with knobs >> and buttons. >> >> I dont mind using my Perseus for casual monitoring and testing tasks, >> however when tuning the bands for a long period of time I just shut the >> thing off and use a real VFO knob. Its the most efficient device ever >> invented for tuning, its the equivalent of the wheel for ham radio! We >> all >> know there's little point in reinventing the wheel! >> >> Hail the VFO Knob! >> >> John >> >> >> --- On Fri, 2/19/10, Julian, G4ILO<[hidden email]> wrote: >> >> >>> From: Julian, G4ILO<[hidden email]> >>> Subject: [Elecraft] W9OY on P3 >>> To: [hidden email] >>> Date: Friday, February 19, 2010, 1:11 AM >>> >>> W9OY comments on the P3 panadapter in his blog: >>> >>> >> http://w9oy-sdr.blogspot.com/2010/02/orlando-hamcation-2010-plus-f3k-post.ht >> ml >> >>> . [Apoplexy alert: he doesn't say anything nice.] >>> >>> ----- >>> Julian, G4ILO. K2 #392 K3 #222. >>> * G4ILO's Shack - http://www.g4ilo.com >>> * KComm - http://www.g4ilo.com/kcomm.html >>> * KTune - http://www.g4ilo.com/ktune.html >>> >>> -- >>> View this message in context: >>> >> http://n2.nabble.com/W9OY-on-P3-tp4596769p4596769.html >> >>> Sent from the Elecraft mailing list archive at Nabble.com. >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[hidden email] >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> >>> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com >> Version: 8.5.435 / Virus Database: 271.1.1/2697 - Release Date: 02/19/10 >> 07:34:00 >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by W6ODJ
RF feedback was just one of a number of problems I encountered when setting up my Flex 5000. It turned out the RF was getting from the radio into the computer by way of the FireWire cable. Someone recommended that I purchase a cable from Granite Digital which I did and it completely cured the problem. The cable is expensive but it had double insulation and gold contact pins as well as ferrite cubes on both ends. Apparently, the FireWire cable supplied by Flex does not always work very well in some installations. One of the other issues which for a while masqueraded as an RF problem turned out to be caused by the fact that I had one buffer size set in the driver and a different buffer size in Power SDR. That is a no-no. After I corrected both issues I have had absolutely no problems with RF or RF like symptoms.
Bruce-W8FU On Feb 19, 2010, at 5:17 PM, O. Johns wrote: > One problem with radios like the Flex hasn't been mentioned much. It is the RF feedback problem. I have seen demos of the Flex in action, and practically every cable in sight had to be loaded down with chokes to keep the RF out of the transceiver control circuits. > > On the face of it, the P3 in its small metal box adjacent to the K3 should be better isolated against RF feedback. I sure hope Elecraft is checking this aspect closely. There are interconnects between K3 and P3. Are they vulnerable? > > 73, > > Oliver > W6ODJ > > > On 19 Feb 2010, at 1:46 PM, Jack Smith wrote: > >> The graphics processor makes a big difference. I have several Dell >> SX-260 computers that run SDR programs painfully slow, despite 2 GB of >> RAM and 2.5 GHz CPU. >> >> It turns out that Dell's graphic processor has no dedicated memory but >> rather shares normal RAM. That creates a huge bottleneck when running a >> graphics intensive program such as all the SDR software. Some is >> slightly worse than other but they all bog way down on the SX-260 >> compared with a machine with a separate graphics card and memory. Same >> SDR program on the SX-260 may run 70% CPU but only 10% on a computer >> with a separate graphics card and memory, with similar CPU speed and RAM. >> >> Jack K8ZOA >> >> >> On 2/19/2010 4:18 PM, ab2tc wrote: >>> I would have agreed if Windows had offered developers an easy way of >>> prioritizing threads and processes. But as far as I know it doesn't (or >>> developers don't know how to use it). In my experience the performance of a >>> PC with 90% CPU load is miserable for all processes running on it. With that >>> said, I don't see why PowerSDR should incur that kind of CPU load on a 3GHz >>> machine. I am running XP home edition on a dual core Dell at 2.9GHz and 2Gb >>> of RAM. My CPU utilization is hovering between 15 and 30% with all of the >>> following running: >>> >>> LP-Bridge >>> HRD >>> PowerSDR with EMU-0202 sound card at 192ks/s >>> VE7CC cluster client (highly recommended) >>> Iexplore composing this message >>> Thunderbird mail client >>> DX Atlas >>> >>> I can add more applications and the CPU barely nudges upwards. I think most >>> people would agree that a car that has to be driven always with the >>> accelerator nearly to the metal is underpowered and not much of a joy. I am >>> a firmware developer and we always worry whenever the CPU utilization >>> exceeds 50% even though we use OS's that allow intelligent prioritization of >>> tasks. >>> >>> AB2TC - Knut >>> >>> >>> Al Lorona wrote: >>> >>>> Just a minor point: There might be a misconception that high CPU >>>> utilization means your computer is inadequate for the task. >>>> >>>> Actually, you want the CPU to work hard for you. It isn't only CPU you >>>> should worry about, it's what is called the 'run queue'. The run queue >>>> determines how long your job has to wait until it's serviced by the >>>> computer. It's okay to have 100% CPU (and in fact you want it) if you >>>> don't have to wait at all. >>>> >>>> A person assessing the performance of a computer looks at several other >>>> things besides CPU when determining what to tune for better performance. >>>> >>>> >>>> Don Wilhelm-4 wrote: >>>> >>>>> >>>> >>>> >>>>> I am using a 3.0 GHz Pentium 4 with 1 GB of RAM, running >>>>> WinXP Pro and the CPU utilization ranges from 50% to 90%, so anyone >>>>> thinking of choosing this alternative with a lesser computer had better >>>>> think about a new computer first. >>>>> >>>> <snip> >>>> >>>> >>>> >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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