Senao 200mW vs. Ruby 32mW cards

[kegrif]

I put a Ruby card in bridging mode and got a link quality of 30, signal of -40, and noise of -97. It is as slow as molasses. The connection is amped at 27dBm with a 13dBi panel antenna for this PtP link.

I changed the Ruby for the Senao and got basically the same readings, but the d/l is consistently 2.7 to 2.9 Mbps. The link 3.5 miles.

Am I missing something here?

[tony]

I put a Ruby card in bridging mode and got a link quality of 30, signal of -40, and noise of -97. It is as slow as molasses. The connection is amped at 27dBm with a 13dBi panel antenna for this PtP link.

I changed the Ruby for the Senao and got basically the same readings, but the d/l is consistently 2.7 to 2.9 Mbps. The link 3.5 miles.

Am I missing something here?

Your signal is very good with the Ruby, so the difference between the two cards should be minimal.

Can you provide us a little information about your setup such as client, AP and backhaul layouts + number of wireless hops? How are you performing your tests?

Thanks!

[georgew]

YDI states the Ruby cards are not FCC certified for operation with external antennas.

Does anyone know why? Is it because they are noisy, and extra gain pushes the noise beyond limits? Or is it because they make more money selling the more expensive cards to WISP's?

How well do they actually work compared to the standard ORiNOCO cards?


George

[TheBarron]

link quality of 30, signal of -40, and noise of -97

Is that possible? From what I've seen of the way these numbers work, that isn't right. But then what do I know.

As for the Ruby chipset cards, I have 4 currently. I do not have any Hermes (Orinoco) chipset cards. The Ruby cards have external antenna connectors, which are made for connecting external antennaes... heh. Seriously though, YDI is basically saying that they haven't certified -that- card in conjunction with -this- (or that) antenna as a system. At least from the way I understand it. Just because it isn't certified doesn't mean that isn't legal.. you just have to make sure yourself that you fall within all the guidelines.

I annoyed tony and lonnie quite a bit about the Ruby chipset before buying these cards (from YDI, incidentally). From their information and my observation, it seems that the main difference from Hermes to Ruby is just trying to simplify the manufacturing process to bring costs down. Functionally, they're supposed to be identical.

However, tony/lonnie could probably be clearer on all of this.

As tony said, if kegrif could give some more details, it would be nice.. because something seems amiss here.