FreeCalypso > hg > fc-rfcal-tools
comparison txlevels/fcom1.README @ 88:c5c1beae5f99
omrf1 txlevels profiles renamed to fcom1, see added fcom1.README
| author | Mychaela Falconia <falcon@freecalypso.org> |
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| date | Mon, 17 Jul 2017 01:17:38 +0000 |
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| 87:34a1e06a8587 | 88:c5c1beae5f99 |
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| 1 The name "fcom1" stands for "FreeCalypso hardware, Openmoko-based, version 1", | |
| 2 and the set of Tx power level calibration profiles named "fcom1" has been | |
| 3 created empirically by the Mother of FreeCalypso to produce successful Tx level | |
| 4 calibration runs on our current FCDEV3B boards with our current CMU200 and | |
| 5 cabling setup. | |
| 6 | |
| 7 These fcom1 Tx power level calibration profiles should ONLY be used for | |
| 8 (re)calibrating FreeCalypso-made hardware, i.e., FCDEV3B boards and potentially | |
| 9 other closely related FC hardware designs in the future; these profiles are NOT | |
| 10 expected to be correct for recalibrating Openmoko's own FreeRunners or for | |
| 11 calibrating other (non-FreeCalypso) Openmoko-derived GSM devices that retain | |
| 12 the internal antenna and the Murata SWD RF test port used by Openmoko, as | |
| 13 opposed to the SMA used on our FCDEV3B. | |
| 14 | |
| 15 For anyone interested in one of those latter use cases, a different set of | |
| 16 profiles would need to be created; the Mother is not currently able to create | |
| 17 those profiles with a good confidence of correctness despite owning several | |
| 18 Openmoko-made FreeRunners and the appropriate Murata MXHS83QH3000 adapter | |
| 19 because the insertion loss of the latter adapter is not precisely known. | |
| 20 Knowing the total insertion loss along the full path from the DUT to the CMU200 | |
| 21 is a prerequisite for determining the correct profiles for Tx power level | |
| 22 calibration, and when Murata SWD/SWF RF test ports are involved, this cabling | |
| 23 path includes both the cable from the CMU200 ending in an SMA and the adapter | |
| 24 from Murata that goes between the SMA and their switch connector. |