RFXreceiver USB signal strenght??

[yjb]

Yesterday I had to switch my RFXreceiver (USB) from my Sheevaplug to my old NSLU2.

Without changing anything else, it seems that my signal quality has apparently gone up; with the Sheevaplug, some of the remote Oregon sensors were dropping out (sometimes minutes, sometimes hours) on a more or less regular basis. When connected to the NSLU2 this doesn't happen. I already suspected something like this; when I switched a couple of months ago from NSLU2 to Sheevaplug, I had to reposition my RFXreceivers' antennae a couple of times to get better results.

Anyone else has the same experiences? What could be the problem, is the Sheevaplug putting noise on the USB line, or ??

[b_weijenberg]

It is possible (but not allowed) that a device transmits RF noise at 433.92MHz.
Hold the Sheevaplug close to the antenna and I suppose you will have bad receivings.

[yjb]

Well, at the moment, the Sheevaplug is dead (which was the reason for switching back to my good old NSLU2). I will try to experiment once I've got it replaced. On the other hand, the antenna was a full cable length away from the Sheevaplug.

It would be nice if the RFXreceiver had an option to provide (received) signal strength (maybe as a pseudo sensor??).

[yjb]

I've received my repaired Sheevaplug and done some tests, I don't think it's noise; if the sheevaplug is powered on and close to my nslu2 which is still connected to the rfxreceiver I don't have any issues. The moment I connect the sheevaplug to the rfxreceiver I experience degraded reception; the sensors that are further away are not well received.

Any ideas what could be the root cause?

--- UPDATE ---
Looks like the Sheevaplug generates noise on the USB connection; I've tried several cables to no avail, but putting a passive USB hub in the middle seems to filter the apparent noise; I'm now receiving all my sensors again.