.TH E1432_SET_SOURCE_CENTERFREQ 3 E1432
.SH NAME
.nf
e1432_set_source_centerfreq - Set source zoom center frequency
e1432_get_source_centerfreq - Get source zoom center frequency
.fi
.IX e1432_set_source_centerfreq(3) 3
.IX e1432_get_source_centerfreq(3) 3
.SH SYNOPSIS
.cS
SHORTSIZ16 e1432_set_source_centerfreq(E1432ID hw, SHORTSIZ16 ID,
                                       FLOATSIZ32 freq)
SHORTSIZ16 e1432_get_source_centerfreq(E1432ID hw, SHORTSIZ16 ID,
                                       FLOATSIZ32 *freq)
.cE
.SH DESCRIPTION
\fIe1432_set_source_centerfreq\fR sets the center frequency for source
"zoom".  See discussion of source zooming under the
\fIe1432_set_source_mode\fR function.

\fIhw\fR must be the result of a successful call to
\fIe1432_assign_channel_numbers\fR, and specifies the group of
hardware to talk to.

\fIID\fR is either the ID of a group of channels that was obtained with a
call to \fIe1432_create_channel_group\fR, or the ID of a single channel.

\fIfreq\fR is the source center frequency, in Hertz.  The default
value is zero which means to use the measurement center frequency that
was specified by \fIe1432_set_center_freq\fR.  Any non-zero value
overrides the center frequency specified by
\fIe1432_set_center_freq\fR, so that source channels may have a
different center frequency than input channels.

.SH "RESET VALUE"
After a reset, the source \fIfreq\fR is set to \fB0\fR.
.SH "RETURN VALUE"
Return 0 if successful, a (negative) error number otherwise.
.SH "SEE ALSO"
.na
e1432_set_source_mode, e1432_get_source_centerfreq_limits,
e1432_set_center_freq
.ad
