misc comment about STRENGTH relative to S9

git-svn-id: https://hamlib.svn.sourceforge.net/svnroot/hamlib/trunk@2340 7ae35d74-ebe9-4afe-98af-79ac388436b8
Hamlib-1.2.8
Stéphane Fillod, F8CFE 2008-05-04 14:11:43 +00:00
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@ -7,16 +7,16 @@
* \file settings.c * \file settings.c
* \brief func/level/parm interface * \brief func/level/parm interface
* \author Stephane Fillod * \author Stephane Fillod
* \date 2000-2006 * \date 2000-2008
* *
* Hamlib interface is a frontend implementing wrapper functions. * Hamlib interface is a frontend implementing wrapper functions.
*/ */
/* /*
* Hamlib Interface - func/level/parm * Hamlib Interface - func/level/parm
* Copyright (c) 2000-2006 by Stephane Fillod * Copyright (c) 2000-2008 by Stephane Fillod
* *
* $Id: settings.c,v 1.10 2007-11-26 20:54:12 n0nb Exp $ * $Id: settings.c,v 1.11 2008-05-04 14:11:43 fillods Exp $
* *
* This library is free software; you can redistribute it and/or modify * This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as * it under the terms of the GNU Library General Public License as
@ -116,8 +116,8 @@ int HAMLIB_API rig_set_level(RIG *rig, vfo_t vfo, setting_t level, value_t val)
* for more information. * for more information.
* *
* RIG_LEVEL_STRENGTH: \a val is an integer, representing the S Meter * RIG_LEVEL_STRENGTH: \a val is an integer, representing the S Meter
* level in dB, according to the ideal S Meter scale. The ideal * level in dB relative to S9, according to the ideal S Meter scale.
* S Meter scale is as follow: S0=-54, S1=-48, S2=-42, S3=-36, * The ideal S Meter scale is as follow: S0=-54, S1=-48, S2=-42, S3=-36,
* S4=-30, S5=-24, S6=-18, S7=-12, S8=-6, S9=0, +10=10, +20=20, * S4=-30, S5=-24, S6=-18, S7=-12, S8=-6, S9=0, +10=10, +20=20,
* +30=30, +40=40, +50=50 and +60=60. This is the responsability * +30=30, +40=40, +50=50 and +60=60. This is the responsability
* of the backend to return values calibrated for this scale. * of the backend to return values calibrated for this scale.