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osmo-trx
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uhd: Set RF frontend bandwidth for UmTRX to improve signal quality. 

Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
This commit is contained in:
Alexander Chemeris 2015-04-28 23:09:02 -04:00 committed by Tom Tsou
parent 4d029d8965
commit e171425b99
1 changed files with 10 additions and 0 deletions
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10
Transceiver52M/UHDDevice.cpp
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@ -750,6 +750,16 @@ int uhd_device::open(const std::string &args, bool extref)
if (set_rates(_tx_rate, _rx_rate) < 0)
return -1;
// Set RF frontend bandwidth
if (dev_type == UMTRX) {
// Setting LMS6002D LPF to 500kHz gives us the best signal quality
for (size_t i = 0; i < chans; i++) {
usrp_dev->set_tx_bandwidth(500*1000*2, i);
if (!diversity)
usrp_dev->set_rx_bandwidth(500*1000*2, i);
}
}
/* Create TX and RX streamers */
uhd::stream_args_t stream_args("sc16");
for (size_t i = 0; i < chans; i++)