[evlatests] BD T304 power meters and attenuators

[Ken Sowinski]

On Thu, 10 Jun 2010, Michael Rupen wrote:

> On Thu, 10 Jun 2010, Barry Clark wrote:
>
>> I'd incline to make LoIfSetup default to SETANDREMEMBER for 8 bits
>> and SETLEVEL for three bits for all basebands, and OPT could just
>> not set things unless there's some special reason to change.
>
> What do these two options do?

SETLEVEL is what I called "ALC".  It servos the attenuators
at the beginnin of a scan to acheive a desired power level.

SETANDREMEMBER does the above the first time and then remembers
that attenuator setting in the LoIfSetup to be used for future
scans.