what is the reason that certain addresses have less receiving sensitivity than others using nRF mode? Can you confirm these addresses are "address prefix field" talked in infocenter?

[cpeng]

Hi Devzone:

I am researching how to maximize radio performance and stumbled on a statement on page 356 in the spec:

"Typical sensitivity applies when ADDR0 is used for receiver address correlation. When ADDR[1..7] are used for receiver address correlation, the typical sensitivity for this mode is degraded by 3 dB."

I want to confirm what I think this statement is talking about.

In infocenter where it talks about radio address configuration:

it says 

"The on air radio ADDRESS field is composed of two parts, the base address field and the address prefix field."

my questions:

1. Can you confirm the address prefix field (5th byte) here is referring to the previous statement on page 356 in the spec where it says "receiver address correlation"?

In other words, 

is ADDR0 essentially PREFIX0.AP0?

is ADDR1 essentially PREFIX0.AP1?

...

is ADDR7 essentially PREFIX0.AP7?

2. In the ESB instruction it talks about pipes 0~7, are these "pipes" refering to these address prefix field mentioned above?

Thanks!

[Kenneth]

is ADDR0 essentially PREFIX0.AP0?

Yes, ADDR0 is BASE0 + PREFIX.AP0. 

In the ESB instruction it talks about pipes 0~7, are these "pipes" refering to these address prefix field mentioned above?

Yes pipe0 is same as ADDR0.