No, not a laptop. Desktop HP, specs stated below in original post. It had four USB ports on the back and two on the front. All appear to be on "hub 0" from my testing. One device listed that I'm not sure what it is, it's not something I can physically plug and unplug, is listed on "hub 1" Generally speaking, the only devices physically plugged into USB during radio operation would be the MS keyboard, a Prolific USB to serial adapter that goes to my homebrew Basic Stamp based rotator control box and the radio itself. So far, in very limited testing the only bad behavior I have noticed so far is a tendency for PSDR audio to cut out and the panadapter display to freeze every once in awhile for varying lengths of time but it usually comes back. This is with the keyboard and radio connected. Have not gotten far enough to try the rotator controller yet. Also have not really played with tweaking any settings yet. I'm very attached to this particular type of keyboard, it is called a "comfort curve" keyboard and I'm so spoiled by it that I have a hard time typing on a straight keyboard. Unfortunately, as far as I know, it's only available with a USB connection and not the more traditional mini DIN type. I have not been able to lay my hands on the USB card I have but I'd have no problem purchasing another PCI based one if that would give me the separate hub that I need to avoid issues. I don't have any available PCIE slots so it would have to be PCI only.
73,
Michael
On 2/11/2011 5:31 AM, Tim Ellison wrote:
The FLEX-1500 is a USB 1.1 device so you would be OK.  Is the PC by chance a 
laptop?


-Tim


-----Original Message-----
From: Michael Tondee [mailto:[email protected]]
Sent: Friday, February 11, 2011 12:38 AM
To: Tim Ellison
Cc: [email protected]
Subject: Re: [Flexradio] 1500 on the way today...USB concerns?

Did some testing and apparently my PC has only one USB hub or only one that is available to me.  No matter where I hook up the 
1500 or the keyboard in my available front and rear panel USB ports, they both always come up on "Hub 0" There is a 
device that says it is "mass storage" showing hooked up to "Hub 1" but I have no idea what it is or how to 
access "Hub 1". I have no USB drives or anything of that nature unless it's the SD card reader ports or the "HP 
pocket media drive bay"
on the front panel of the computer. I think I have an old USB PCI card lying 
around here somewhere but I'd bet anything it's USB 1.1 if I could even lay 
hands on it.
73,
Michael
On 2/10/2011 1:17 PM, Tim Ellison wrote:
Unless you have a "soft" USB controller that seem to crop up in some of the new  
"I" versions of Intel processors, the only thing of real concern with USB is to make sure 
you do not have a low speed polling device (keyboard/ mouse) or a very high bandwidth USB device 
like a Wireless card or hard drive connected to the same USB controller as the FLEX-1500.

You want to look at this KB article
http://kc.flexradio.com/KnowledgebaseArticle50459.aspx

If you do have one of the "soft" USB controllers, then there are some 
enhancements in the upcoming beta version of PowerSDR that help mitigate the controller 
issues.


-Tim


-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Michael Tondee
Sent: Thursday, February 10, 2011 12:44 PM
To: [email protected]
Subject: [Flexradio] 1500 on the way today...USB concerns?

I'm waiting on my 1500 to be delivered today. Meantime, I've been reading the 
forums and scouting around in the KB articles. I've read a couple of things 
about USB issues that give me pause.
MY PC is an HP a6333w desktop with an Athlon 64 X2  4800+  2.5Ghz processor.. 
Chipset is identified as GEforce 6150SE n Force430.  It has 3GB of memory and 
is running 32 bit Windows 7.  It has USB 2.0 and I use a MS comfort curve 2000 
keyboard that hooks up through USB.  I have added a dual port PCIE video card 
that I believe has an Nvidia processor. This PC performed near flawlessly 
through a firewire hookup to a 5k  but I have been unable to garner much info 
on it as far as how the USB controller is configured, perhaps I'm not looking 
in the right place. The device manager doesn't really seem to give that much 
info.
I'm not trying to borrow trouble here but I read something in a post
about the fact that a USB keyboard hooked to the same controller as
the
1500 could slow the USB speed down and cause issues with the 1500. Any thoughts 
or am I just jumping the gun a bit here?

_









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