Dear Marcus, I use the same signal for NI-5672 and signal changes as expected, I change A from 2000 to 8 and it must drop 46 dB but does not!
On Tue, Aug 6, 2019 at 4:09 AM Marcus Müller <[email protected]> wrote: > Dear Hossein, > > the B200 does NOT have a TX power control that would compensate that. > > Are you perhaps either not changing A very much, or are you perhaps > clipping? Driving your B200's TX amplifier into saturation would of > course mean that you'd not see much of signal power reduction when > reducing signal amplitude, until you cross the threshold where things > become linear again. > > Best regards, > Marcus > > On Mon, 2019-08-05 at 17:00 +0430, hossein talaiee via USRP-users > wrote: > > Hi > > > > I want to manually control output power of my USRP with signal level > > not usrp gain,for example I want to generate a sinusoidal signal with > > equation: > > > > s(t) = A * sin(w*t); > > > > and want to change A to control tx power, but when I change it, > > somehow USRP compensate my change and tries to hold tx power! like it > > is trying to hold average power. > > > > Using NI-5672 signal generator, I am able to control power with > > setting the power mode to "Peak Power mode" instead of "Average Power > > mode". I think USRP has something like this to control power. How can > > I disable it? > > _______________________________________________ > > USRP-users mailing list > > [email protected] > > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
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