Re: getting good range .. - ditching USB wireless adaptor. What PCI one?

Jeff Liebermann <jeffl@xxxxxxxxxxxxxxxxxxxxxx> wrote:
dold@xxxxxxxxxxxxxxxx hath wroth:
Which way are you suggesting that the hemisphere is oriented?

Ummm... hemispheres don't have points.

A hemisphere certainly has an orientation. I didn't say points.

gain would be upwards from the chip antenna, and slightly forward. One
thing for sure is that it's not symmetrical.

"upwards" requires clarification.

I gather that you are laying the dongle down on the table, with a cable
running along the table, toward the PC. "Up" in that reference would be
off the face of the dongle.
http://www.rahul.net/dold/clarence/usb-can/im000742-800x600.jpg
If I took a half of a basketball, and set it open side down over this
coffee can, would that represent the hemisphere of radiation? Or would the
basketball sitting on a table be properly oriented if the dongle were
sitting on it's connector, with the cable going down through the table.

Does the radiation flow in the same direction as the light from the little
LEDs on this dongle?

When the chip antenna is near the edge of the PCB, there's quite a bit
of RF radiated in the downward direction from the bottom of the PCB.

Reflecting off the bottom of the can in my photo?

--
Clarence A Dold - Hidden Valley Lake, CA, USA GPS: 38.8,-122.5
.