FlightAware Discussions

Usb extension cable recommendations


I am using an RPi3B with the FA pro stick Plus. I get pretty good reception from my garage but would like to improve it by moving my setup. Ideally I would like to use a USB extension cable.

I purchased this one: monoprice 32 ft 2 port active usb cable When I use it, I see a tremendous loss in range and aircraft counts. I even bought a power adapter for the extension end to eliminate power drop issues over the cable. (i also tested it on some other rtl-sdr’s on my pc and had the same sort of issues)

I also tried this on my other rtl-sdr’s: https://www.amazon.com/gp/product/B002KKZAIU/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 3ft monorpice usb extension cable… I also had issues with data reception…

Are there recommended or known good cables? Any thoughts on why I am having issues?


I’ve used USB extension cables as short as 200mm and seen the same drop in performance.

You are far better keeping the Dongle to Pi interface short and extending the CAT5/power (maybe as PoE for convenience).


I agree. USB cables are the worst to extend.
Either move all the contraption away (Pi+dongle) and remotely fed it, or move just the antenna and use a long coax cable.

Personally I have moved the antenna, and used a preamp/filter at that end with power over the coax cable. To be cheaper, I have used RG6 cable with SMA-F adapters at each end.


Thank you very much for your input!




Any hints what you used?
(and did you confirm no significant drop in messages? - side by side receives or similar)


I am not the one who used it. I have quoted someone else from another forum. To see details, please click the two Click here in my above post.


It unfortunately looks like you are endorsing it.

I had success with a 5m passive USB extension cable with no discernible loss. That is only a 50% success rate.

I have had 100% success with PoE (Power over Ethernet) out of three installations. One of these was for power only with the data still communicated over Wi-Fi.

I use these which have the added bonus of being cheaper than the genuine Raspberry 2.5Amp powersupply.](https://www.ebay.com.au/itm/192264700479)

Unterminated Ethernet also goes through a much smaller hole than a terminated USB cable.