Jump to content

Hi Guys, I'll try and make this short.

Recently my car was hit so I set up a webcam in the room upstairs looking down. I bought 20m USB extension with active repeater to bridge the gap between my desktop.

While the cable works for the most part I am somewhat limited in resolution received at desktop ? The C920 I'm using is capable of full HD but I can only ever get 640 x 480 ?

I'm wondering if this is down to signal degradation since I am aware of the limitations with USB cables over 5m.

Would an active booster between the camera USB connector and the 20m cable improve the signal ?

Or can you suggest a better solution ? As I said, I'm using a Logitech C920 with 20m extension cable with active repeater built in, on a Windows 8.1 system, Samsung SSD, Core i7 with 16gb RAM.

The program I'm using to capture the images is iSpy (Free Version)

 

Thanx in advance.

 

PS, No option to move the PC and no Laptop available .

Link to comment
https://linustechtips.com/topic/774931-logitech-c920/
Share on other sites

Link to post
Share on other sites

If you have a fast USB drive, you could test if that is the issue by copying a file to it with it plugged right into the PC, and then again through the long cable and compare speeds.  If they're significantly worse, I suppose it's possible the camera can tell it has a bad connection and is limiting your resolution in software to prevent dropping frames, but if it works fine, I can't imagine why the camera would have an issue.  

Solve your own audio issues  |  First Steps with RPi 3  |  Humidity & Condensation  |  Sleep & Hibernation  |  Overclocking RAM  |  Making Backups  |  Displays  |  4K / 8K / 16K / etc.  |  Do I need 80+ Platinum?

If you can read this you're using the wrong theme.  You can change it at the bottom.

Link to comment
https://linustechtips.com/topic/774931-logitech-c920/#findComment-9776085
Share on other sites

Link to post
Share on other sites

7 hours ago, shitbrick01 said:

@Ryan_Vickers

I will certainly give that i try sir, it will have to be a USB 2 test though. But i get where your going. Will let you know the outcome. Thanks

 

If it does turn out that cable length is the issue, I know there are ways to work around it, like devices that convert the signal to run along an ethernet cable (which are designed to handle long distances much better) and then converts it back to USB on the other end

Solve your own audio issues  |  First Steps with RPi 3  |  Humidity & Condensation  |  Sleep & Hibernation  |  Overclocking RAM  |  Making Backups  |  Displays  |  4K / 8K / 16K / etc.  |  Do I need 80+ Platinum?

If you can read this you're using the wrong theme.  You can change it at the bottom.

Link to comment
https://linustechtips.com/topic/774931-logitech-c920/#findComment-9778209
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×