Recent content by toto99303

The only document I could find is this: Product Specification | PDF Host It looks like the Atheros has it's own amplifier, so this might be the way they're doing it.

Yes, I think the amplification is fixed, it's just being turned on or off. Let's see if anyone else has an opinion on this.

Your question is valid, but think of this. Since you can't actually measure how much power you're outputting (to meet regulations) in order to be 100% sure you need a real feedback on the output. And this probably is the VDET pin which gives you accurate measurement of how much power you're...

EDIT: When reading the datasheet it looks like VDET is an output, not an input? It would not be a good idea to control RF power output via analog voltage input, as you'll have to somehow control the voltage on the MCU output pin, PWM is not an option here...

Reading further the datasheet I might be wrong, because the chip utilizes 4 states, in 3 of which the PA_EN pin should be off. Which means it's constantly switching between TX and RX and only in TX state the PA-EN should be enabled. Maybe in EU even in TX state the PA_EN is still low and thus...

Based on this video It looks like the FCC version just disables the 5.8Ghz amplifier on the SKY chip if it sees GPS coordinates outside of EU. If someone can check the logical level of pin 6 on a FCC version first in US and then fakeGPS to EU. If it changes from 1 to 0 then a simple permanent...