diff options
| author | kurtis.heimerl <kurtis.heimerl@19bc5d8c-e614-43d4-8b26-e1612bc8e597> | 2011-11-26 03:18:11 +0000 |
|---|---|---|
| committer | kurtis.heimerl <kurtis.heimerl@19bc5d8c-e614-43d4-8b26-e1612bc8e597> | 2011-11-26 03:18:11 +0000 |
| commit | 16c654043c5a111de5c172d45609ded2324f952f (patch) | |
| tree | 9abb6628321623619892eb7b3fbb0f825d189ea4 | |
| parent | 2b28c696f8dd5dad2fa002eaa9cd72c1f2b48cad (diff) | |
transceiver: fix bug in setting low-level attenuation
This patch fixes some confusion in gain vs. attenuation
setting. The UHD device is controlled through gain
settings but OpenBTS represents gain in terms of
attenuation relative to maximum - 0 dB attenuation.
Signed-off-by: Thomas Tsou <ttsou@vt.edu>
git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@2662 19bc5d8c-e614-43d4-8b26-e1612bc8e597
| -rw-r--r-- | Transceiver52M/radioInterface.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Transceiver52M/radioInterface.cpp b/Transceiver52M/radioInterface.cpp index 1afa01b..531a0dd 100644 --- a/Transceiver52M/radioInterface.cpp +++ b/Transceiver52M/radioInterface.cpp @@ -103,10 +103,10 @@ double RadioInterface::fullScaleOutputValue(void) { void RadioInterface::setPowerAttenuation(double atten) { - double rfAtten, digAtten; + double rfGain, digAtten; - rfAtten = mRadio->setTxGain(mRadio->maxTxGain() - atten); - digAtten = atten - rfAtten; + rfGain = mRadio->setTxGain(mRadio->maxTxGain() - atten); + digAtten = atten - mRadio->maxTxGain() + rfGain; if (digAtten < 1.0) powerScaling = 1.0; |