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authorMatthias P. Braendli <matthias.braendli@mpb.li>2017-02-25 14:12:05 +0100
committerMatthias P. Braendli <matthias.braendli@mpb.li>2017-02-25 14:12:05 +0100
commit0bdb1ce8e7753f6617074fb859419a6185d91ad1 (patch)
tree7560c37896bb67fda146a78305edbb013299afe1 /doc
parent74504a9af2ef9a34085b0065c7c993ac5346fd27 (diff)
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Document lo_offset
Diffstat (limited to 'doc')
-rw-r--r--doc/example.ini9
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/example.ini b/doc/example.ini
index bdb3f00..36a6c2f 100644
--- a/doc/example.ini
+++ b/doc/example.ini
@@ -201,6 +201,15 @@ txgain=2.0
;frequency=234208000
channel=13C
+; Some USRP boards/frontends support setting an LO offset that has the
+; effect of shifting DC out of the signal bandwidth. This should also
+; improve IQ imbalance effects, because the mirror will centered on another
+; frequency (it should be on frequency + 2*lo_offset)
+;
+; The value can be negative, and its absolute value must be smaller than
+; master_clock_rate/2.
+;lo_offset=2048000
+
; The reference clock to use. The gpsdo is the ODR LEA-M8F board, the
; official Ettus GPSDO is selected with gpsdo-ettus
; possible values : internal, external, MIMO, gpsdo, gpsdo-ettus