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comparison doc/Tx-cal-theory @ 121:76faa4f52a4d

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doc/Tx-cal-theory: fc-rfcal-txbasis -l option documented
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 14 Feb 2018 03:55:03 +0000
parents 32bf19fb8a2a
children aa2533be2ec1
comparison
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120:32bf19fb8a2a 121:76faa4f52a4d
171 as well, or does the measured power output fall short of this target no matter 171 as well, or does the measured power output fall short of this target no matter
172 how high you crank the APC DAC? These observations will tell you whether or not 172 how high you crank the APC DAC? These observations will tell you whether or not
173 you need to shift the highest and/or lowest target power levels in your new 173 you need to shift the highest and/or lowest target power levels in your new
174 txlevels calibration profile. 174 txlevels calibration profile.
175 175
176 2018-02 addition: fc-rfcal-txbasis takes a new command line option -l; this
177 option causes it to compute and print the Vout/LSB slope after the second and
178 subsequent basis points; this option is useful for studying the linearity of
179 the RF PA's response to APC DAC control values.
180
176 Regular calibration runs 181 Regular calibration runs
177 ======================== 182 ========================
178 183
179 Once you have a good set of profiles for the type of Calypso GSM device you are 184 Once you have a good set of profiles for the type of Calypso GSM device you are
180 calibrating, just run fc-rfcal-txband with the band number and the name of your 185 calibrating, just run fc-rfcal-txband with the band number and the name of your