[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] Re: Residual Frequency?
From: |
Johnathan Corgan |
Subject: |
Re: [Discuss-gnuradio] Re: Residual Frequency? |
Date: |
Mon, 21 Apr 2008 21:41:36 -0700 |
On Mon, Apr 21, 2008 at 5:06 PM, Brian Padalino <address@hidden> wrote:
> a) Should the compression of the output stages really affect his
> constant envelope GMSK signal?
Not directly. However, by operating a normally linear amplifier in
gain compression, the third-order mixing products of the signal and
any spurs and noise will be disproportionately higher than if the
amplifier were run in its linear range.
> b) Is there any future enhancement scheduled to feed the
> daughterboard a normalized signal with a "backoff" in dB which will
> try to ensure linearity?
Well, not this specifically. It would be a matter of calibration
anyway, as the 1dB gain compression point of the output stages would
likely be different from board to board.
We're of course open to suggestions.
--
Johnathan Corgan
Corgan Enterprises LLC
http://corganenterprises.com/
Re: [Discuss-gnuradio] Residual Frequency?, Eric Blossom, 2008/04/19