Log in
Register
Menu
Log in
Register
Home
What's new
Latest activity
Authors
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Miscellaneous Sections
Tech Head - The Technology Section
SDR radio, Software Defined Radio
Optiplex GX620 - Dedicated SDR + SAT
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Vipersan" data-source="post: 968134" data-attributes="member: 325666"><p>Finally got internal usb connection sorted ..</p><p>Actually ..x 2</p><p>Having tested and modded quite a few unsuccessfully ...I now have a worker.</p><p>Turns out USB 1.0 simply wont work with SDR ..</p><p>But I WAS surprised when USB 2.0 failed also ..</p><p>After much digging the refusal of SDRplay to even be recognised by USB 2.0 on a pci card turned out to be a chipset incompatibility..</p><p>The reason for this incompatibility is that VIA based chipsets of the type VT6212 on close variants are NOT fully complant with usb 2.0 protocol ...using bulk transfer and not Isochronous transfer ..</p><p>Thus bandwidth is severly restricted ..and thus the SDRplayer refuses to even be recognised..</p><p>full story here :-</p><p><a href="http://www.sdrplay.com/community/viewtopic.php?f=5&t=673" target="_blank">SDRplay incompatibility with usb 2 pci card ? - SDRplay Community Forum</a></p><p>So I eventually got my hands on a used NEC chipset based pci card (usb 2.0) cheaply ...but not a low profile one..</p><p>It arrived this morning and as expected would not fit ..even with the backplate removed..</p><p>It's just too tall ..</p><p>Out came the junior hacksaw and the topmost usb socket sacrificed..</p><p>There are 5 ports in total ..</p><p>One internal ..and 4 to the rear ..now 3 to the rear ...but the only low profile backplate I have is from a 2 port card ..</p><p>So the 3rd from the bottom usb port socket was removed reversed and repositioned to point inwards ..</p><p>I now have 4 ports available ..2 of which point outwards ..and 2 internal ...and now the 2 port low profile back plate will fit ..</p><p>I'm attaching photos of the modded pci card..</p><p>All this to make a neater job..</p><p>lol</p><p>but I guess thats the fun of it..</p><p>rgds</p><p>VS[ATTACH=full]92309[/ATTACH] [ATTACH=full]92310[/ATTACH] [ATTACH=full]92311[/ATTACH]</p></blockquote><p></p>
[QUOTE="Vipersan, post: 968134, member: 325666"] Finally got internal usb connection sorted .. Actually ..x 2 Having tested and modded quite a few unsuccessfully ...I now have a worker. Turns out USB 1.0 simply wont work with SDR .. But I WAS surprised when USB 2.0 failed also .. After much digging the refusal of SDRplay to even be recognised by USB 2.0 on a pci card turned out to be a chipset incompatibility.. The reason for this incompatibility is that VIA based chipsets of the type VT6212 on close variants are NOT fully complant with usb 2.0 protocol ...using bulk transfer and not Isochronous transfer .. Thus bandwidth is severly restricted ..and thus the SDRplayer refuses to even be recognised.. full story here :- [URL="http://www.sdrplay.com/community/viewtopic.php?f=5&t=673"]SDRplay incompatibility with usb 2 pci card ? - SDRplay Community Forum[/URL] So I eventually got my hands on a used NEC chipset based pci card (usb 2.0) cheaply ...but not a low profile one.. It arrived this morning and as expected would not fit ..even with the backplate removed.. It's just too tall .. Out came the junior hacksaw and the topmost usb socket sacrificed.. There are 5 ports in total .. One internal ..and 4 to the rear ..now 3 to the rear ...but the only low profile backplate I have is from a 2 port card .. So the 3rd from the bottom usb port socket was removed reversed and repositioned to point inwards .. I now have 4 ports available ..2 of which point outwards ..and 2 internal ...and now the 2 port low profile back plate will fit .. I'm attaching photos of the modded pci card.. All this to make a neater job.. lol but I guess thats the fun of it.. rgds VS[ATTACH=full]92309[/ATTACH] [ATTACH=full]92310[/ATTACH] [ATTACH=full]92311[/ATTACH] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Miscellaneous Sections
Tech Head - The Technology Section
SDR radio, Software Defined Radio
Optiplex GX620 - Dedicated SDR + SAT
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top