subject:"Re\: \[Flexradio\] crackling noise"

Re: [Flexradio] crackling noise

2010-12-06 Thread Peter - VE3HG

Thanks Tim and Gerald and Graham and All:

Almost certain it's the graphic card. On the crackling PC the CPU runs at 30% 
or less and CW is okay. If I run packetspots or other programs (F-Secure virus 
software is a suspect) CPU goes up past 50% and CW starts to drop characters. 
Turning off display ends crackling and allows for better CW.this is why I'm 
suspecting the graphics card before i go into more exotic fixes. Do look at 
task manager and don't see anything running that shouldn't be and once I have 
all running including Writelog the system has been pretty stable and useable.

Will try the suggests below re new drivers (although all new within last two 
months) and monitoring software although using Flex and Widgets continuously 
monitoring CPU usage on both machines.

On second computer with less RAM no crackling sounds but CW failing. Will get 
more RAM (always a good first try and relatively cheap) and see if that works.

If that fails will swap graphic's card between machines. If that fails, a new 
machine would be nice :)

No bluetooth, no wireless, nothing out of the ordinary and both desktop 
machines running clean Windows 7 installs done at a shop I trust.

Overall, the Flex receiver on CW during 160-meter contest was by far the 
quietest I've ever run and best filters I've ever used. All I'm have is a 
60-foot Alpha-Delta sloper and could hear all of North America easily and in 
past contests often Caribbean and Europe so love the Flex 1500 receiver. Again 
I'm learning and that's the point.

Thanks again to all who commented so quickly.

Best regards,

Peter - VE3HG
VE3HG Blog
Follow VE3HG On Twitter

On 2010-12-05, at 8:31 PM, Tim Ellison wrote:

> " If the intermittent crackles co-inside with DPC spikes, then you need to 
> figure out what is causing that.  Likely some other peripheral that is tying 
> up your kernel."
> 
> If it is a DPC problem, the culprit(s) will be
> 
> Bluetooth transceiver
> Wireless transceiver
> NIC card
> Video card.
> USB
> 
> Excessive and/or long duration DPCs are hardware/driver problems.  Upgrade 
> your hardware drivers to the latest version especially if you are using Win7. 
>  Also you need to make sure your BIOS is at the latest revision too.
> 
> Here is the other thing to check.  If your FLEX-1500 is connected to a USB 
> controller that is connected to a low speed polling device like a keyboard 
> and/or mouse (wired or wireless), it will adversely affect the performance of 
> the FLEX-1500.  If you are using a laptop, there could be oodles of things on 
> the USB controller.  Here is how you check to make sure the FLEX-1500 isn't 
> sharing a USB controller.  
> http://kc.flexradio.com/KnowledgebaseArticle50459.aspx
> 
> 
> -Tim
> 
> 
> -Original Message-
> From: flexradio-boun...@flex-radio.biz 
> [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Graham Haddock
> Sent: Sunday, December 05, 2010 8:09 PM
> To: Peter - VE3HG
> Cc: flexradio@flex-radio.biz
> Subject: Re: [Flexradio] crackling noise
> 
> Peter:
> In addition to looking at the CPU loading in Task Manager, I also suggest that
> you download the tool named DPC Latency Checker   from
> 
> http://www.thesycon.de/dpclat
> 
> and run it.
> 
> The intermittent crackles caused by the CPU loading can usually be cured by 
> installing the ".dll" patch for 2.0.1.
> 
> If the intermittent crackles co-inside with DPC spikes, then you need to 
> figure out what is causing that.  Likely some other peripheral that is tying 
> up your kernel.
> 
> I would look at these things before buying a new computer.  [Unless you are 
> looking for an excuse for Santa to bring you an upgrade.]
> 
> --- Graham / KE9H
> 
> ==
> 
> 
> On Sun, Dec 5, 2010 at 3:09 PM, Peter - VE3HG  wrote:
>> 
>>> Thanks to those who suggested the graphics card might be the suspect. 
>>> Sure enough swapped Windows 7 computers and no crackling.
>>> 
>>> The 2.80 gig HP with a GeForce 8600 GT card and 4 gigs of memory was 
>>> the problem. A 3.33 gig E-Machine with a lesser ATI HD4350 card and 
>>> only 2 gigs of memory ran quiet - no crackling.
>>> 
>>> However the 2 gigs RAM in the E-Machine don't seem sufficient for 
>>> clean CW. I'll try more RAM but it's looking more and more like a new 
>>> computer :(
>>> 
>>> Best regards,
>>> 
>>> Peter - VE3HG
>>> VE3HG Blog
>>> Follow VE3HG On Twitter
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> ___
>>> FlexRadio Systems Mailing List
>>> Fle

Re: [Flexradio] crackling noise

2010-12-05 Thread Tim Ellison

" If the intermittent crackles co-inside with DPC spikes, then you need to 
figure out what is causing that.  Likely some other peripheral that is tying up 
your kernel."

If it is a DPC problem, the culprit(s) will be

Bluetooth transceiver
Wireless transceiver
NIC card
Video card.
USB

Excessive and/or long duration DPCs are hardware/driver problems.  Upgrade your 
hardware drivers to the latest version especially if you are using Win7.  Also 
you need to make sure your BIOS is at the latest revision too.

Here is the other thing to check.  If your FLEX-1500 is connected to a USB 
controller that is connected to a low speed polling device like a keyboard 
and/or mouse (wired or wireless), it will adversely affect the performance of 
the FLEX-1500.  If you are using a laptop, there could be oodles of things on 
the USB controller.  Here is how you check to make sure the FLEX-1500 isn't 
sharing a USB controller.  
http://kc.flexradio.com/KnowledgebaseArticle50459.aspx

-Tim

-Original Message-
From: flexradio-boun...@flex-radio.biz 
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Graham Haddock
Sent: Sunday, December 05, 2010 8:09 PM
To: Peter - VE3HG
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] crackling noise

Peter:
In addition to looking at the CPU loading in Task Manager, I also suggest that
you download the tool named DPC Latency Checker   from

http://www.thesycon.de/dpclat

and run it.

The intermittent crackles caused by the CPU loading can usually be cured by 
installing the ".dll" patch for 2.0.1.

If the intermittent crackles co-inside with DPC spikes, then you need to figure 
out what is causing that.  Likely some other peripheral that is tying up your 
kernel.

I would look at these things before buying a new computer.  [Unless you are 
looking for an excuse for Santa to bring you an upgrade.]

--- Graham / KE9H

==

On Sun, Dec 5, 2010 at 3:09 PM, Peter - VE3HG  wrote:
>
>> Thanks to those who suggested the graphics card might be the suspect. 
>> Sure enough swapped Windows 7 computers and no crackling.
>>
>> The 2.80 gig HP with a GeForce 8600 GT card and 4 gigs of memory was 
>> the problem. A 3.33 gig E-Machine with a lesser ATI HD4350 card and 
>> only 2 gigs of memory ran quiet - no crackling.
>>
>> However the 2 gigs RAM in the E-Machine don't seem sufficient for 
>> clean CW. I'll try more RAM but it's looking more and more like a new 
>> computer :(
>>
>> Best regards,
>>
>> Peter - VE3HG
>> VE3HG Blog
>> Follow VE3HG On Twitter
>>
>>
>>
>>
>>
>>
>> ___
>> FlexRadio Systems Mailing List
>> FlexRadio@flex-radio.biz
>> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
>> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
>> Knowledge Base: http://kc.flexradio.com/  Homepage:
>> http://www.flexradio.com/
>>
>
>
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Re: [Flexradio] crackling noise

2010-12-05 Thread Graham Haddock

Peter:
In addition to looking at the CPU loading in Task Manager, I also suggest
that
you download the tool named DPC Latency Checker   from

http://www.thesycon.de/dpclat

and run it.

The intermittent crackles caused by the CPU loading can usually be cured by
installing the ".dll" patch for 2.0.1.

If the intermittent crackles co-inside with DPC spikes, then you need to
figure
out what is causing that.  Likely some other peripheral that is tying up
your
kernel.

I would look at these things before buying a new computer.  [Unless you are
looking for an excuse for Santa to bring you an upgrade.]

--- Graham / KE9H

==


On Sun, Dec 5, 2010 at 3:09 PM, Peter - VE3HG  wrote:
>
>> Thanks to those who suggested the graphics card might be the suspect. Sure
>> enough swapped Windows 7 computers and no crackling.
>>
>> The 2.80 gig HP with a GeForce 8600 GT card and 4 gigs of memory was the
>> problem. A 3.33 gig E-Machine with a lesser ATI HD4350 card and only 2 gigs
>> of memory ran quiet - no crackling.
>>
>> However the 2 gigs RAM in the E-Machine don't seem sufficient for clean
>> CW. I'll try more RAM but it's looking more and more like a new computer :(
>>
>> Best regards,
>>
>> Peter - VE3HG
>> VE3HG Blog
>> Follow VE3HG On Twitter
>>
>>
>>
>>
>>
>>
>> ___
>> FlexRadio Systems Mailing List
>> FlexRadio@flex-radio.biz
>> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
>> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
>> Knowledge Base: http://kc.flexradio.com/  Homepage:
>> http://www.flexradio.com/
>>
>
>
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Re: [Flexradio] crackling noise

2010-12-05 Thread Graham Haddock

Peter:
In addition to looking at the CPU loading in Task Manager, I also suggest
that
you download the tool named DPC Check   from

xx

and run it.

The intermittent crackles caused by the CPU loading can usually be cured by
installing the ".dll" patch for 2.0.1.

If the intermittent crackles co-inside with DPC spikes, then you need to
figure
out what is causing that.  Likely some other peripheral that is tying up
your
kernel.

I would look at these things before buying a new computer.  [Unless you are
looking for an excuse for Santa to bring you an upgrade.]



On Sun, Dec 5, 2010 at 3:09 PM, Peter - VE3HG  wrote:

> Thanks to those who suggested the graphics card might be the suspect. Sure
> enough swapped Windows 7 computers and no crackling.
>
> The 2.80 gig HP with a GeForce 8600 GT card and 4 gigs of memory was the
> problem. A 3.33 gig E-Machine with a lesser ATI HD4350 card and only 2 gigs
> of memory ran quiet - no crackling.
>
> However the 2 gigs RAM in the E-Machine don't seem sufficient for clean CW.
> I'll try more RAM but it's looking more and more like a new computer :(
>
> Best regards,
>
> Peter - VE3HG
> VE3HG Blog
> Follow VE3HG On Twitter
>
>
>
>
>
>
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> FlexRadio Systems Mailing List
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> Knowledge Base: http://kc.flexradio.com/  Homepage:
> http://www.flexradio.com/
>
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Re: [Flexradio] crackling noise

2010-12-05 Thread Gerald Youngblood

Peter,

Bring up the Performance tab on the Windows Task Manager and see if you are
getting 100% CPU spikes that look like a heartbeat.  If so you may need to
implement Step 5 in the FLEX-1500 Driver Patch Kit for PowerSDR v2.0.16
Installation & Troubleshooting Guide on the download page.  It may be that
your computer can't handle the 1ms buffer transfer rate of the stock driver.
 The other users suggestions posted earlier are valid as well.

73,
Gerald


Gerald Youngblood, K5SDR
President and CEO
FlexRadio Systems(TM)
13091 Pond Springs Road, #250
Austin, TX 78729
Phone: 512-535-4713 Ext. 202
Email: ger...@flexradio.com
Web: www.flexradio.com 

Tune In Excitement (TM)

PowerSDR(TM) is a trademark of FlexRadio Systems


On Sun, Dec 5, 2010 at 12:55 PM, Peter - VE3HG  wrote:

> The 1500 has a crackling noise which is occurring randomly every second to
> every few seconds or so. Sounds just like a broken speaker cable. Not so
> noticeable on SSB but on CW it's unacceptable.
>
> Changed the headphones; used a dummy load; tried different bands and the
> only thing that killed the noise was turning off the panoramic display.
> Noise reappears when display is on.
>
> Made working the 160 CW contest a royal pain in the ears which was
> disappointing as the receiver filters were way beyond anything I've ever
> used. Actually had audio separation from one signal to the next on a 160 CW
> contest which was amazingand then there's the crackling noise.
>
> Need an answer on this one :(
>
> Best regards,
>
> Peter - VE3HG
> VE3HG Blog
> Follow VE3HG On Twitter
>
>
>
>
>
>
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> http://www.flexradio.com/
>
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Re: [Flexradio] crackling noise

2010-12-05 Thread Mike WA8BXN

I get a noise that may be the same when the volume slider is all the way up.
Turning it down just a bit cures it. 

 

73/72 - Mike WA8BXN 

 

 

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Re: [Flexradio] crackling noise

2010-12-05 Thread Jeff Kelly


Do you have a separate graphics card?  I had the same crackling noise
with my Dell that has an Intel graphics chip on the motherboard.

Once I dropped a cheap card in Gforce 7300LE, it all went away.

Jeff
K2SDR

-Original Message- 
From: Peter - VE3HG

Sent: Sunday, December 05, 2010 1:55 PM
To: flexradio@flex-radio.biz
Subject: [Flexradio] crackling noise

The 1500 has a crackling noise which is occurring randomly every second to 
every few seconds or so. Sounds just like a broken speaker cable. Not so 
noticeable on SSB but on CW it's unacceptable.


Changed the headphones; used a dummy load; tried different bands and the 
only thing that killed the noise was turning off the panoramic display. 
Noise reappears when display is on.


Made working the 160 CW contest a royal pain in the ears which was 
disappointing as the receiver filters were way beyond anything I've ever 
used. Actually had audio separation from one signal to the next on a 160 CW 
contest which was amazingand then there's the crackling noise.


Need an answer on this one :(

Best regards,

Peter - VE3HG
VE3HG Blog
Follow VE3HG On Twitter






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http://www.flexradio.com/ 



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