--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/txlevels/README	Tue Feb 13 02:25:27 2018 +0000
@@ -0,0 +1,13 @@
+Two sets of Tx power level calibration profiles have been created so far:
+rf3166-ideal and rf3166-fcdev3b.  As implied in the naming, both sets of
+profiles are meant for GSM MS designs using the RF3166 PA as used by Openmoko,
+following OM's triband board design for the RF section.  The only difference
+between the two versions is in the target dBm number for the maximum power
+level for the low band (EGSM or GSM850): it is 33 dBm as the GSM 05.05 spec
+calls for in the rf3166-ideal-900 profile, but the rf3166-fcdev3b-900 profile
+has it shifted down to 32.2 dBm, similarly to how TI did it on their I-Sample
+(LoCosto) boards.  The rf3166-ideal profile set works for recalibrating
+Openmoko-made GTA02 devices, producing even better Tx power levels than OM's
+original (set to unshifted GSM 05.05 spec targets), but on our own FCDEV3B
+boards we are not able to get the full 33 dBm Tx output in the low band, hence
+the rf3166-fcdev3b profile set with the shifted target.

--- a/txlevels/fcom1.README	Tue Feb 13 01:11:41 2018 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,24 +0,0 @@
-The name "fcom1" stands for "FreeCalypso hardware, Openmoko-based, version 1",
-and the set of Tx power level calibration profiles named "fcom1" has been
-created empirically by the Mother of FreeCalypso to produce successful Tx level
-calibration runs on our current FCDEV3B boards with our current CMU200 and
-cabling setup.
-
-These fcom1 Tx power level calibration profiles should ONLY be used for
-(re)calibrating FreeCalypso-made hardware, i.e., FCDEV3B boards and potentially
-other closely related FC hardware designs in the future; these profiles are NOT
-expected to be correct for recalibrating Openmoko's own FreeRunners or for
-calibrating other (non-FreeCalypso) Openmoko-derived GSM devices that retain
-the internal antenna and the Murata SWD RF test port used by Openmoko, as
-opposed to the SMA used on our FCDEV3B.
-
-For anyone interested in one of those latter use cases, a different set of
-profiles would need to be created; the Mother is not currently able to create
-those profiles with a good confidence of correctness despite owning several
-Openmoko-made FreeRunners and the appropriate Murata MXHS83QH3000 adapter
-because the insertion loss of the latter adapter is not precisely known.
-Knowing the total insertion loss along the full path from the DUT to the CMU200
-is a prerequisite for determining the correct profiles for Tx power level
-calibration, and when Murata SWD/SWF RF test ports are involved, this cabling
-path includes both the cable from the CMU200 ending in an SMA and the adapter
-from Murata that goes between the SMA and their switch connector.