[USRP-users] USRPN210 RX Rate Problem

Shen Wenbo shenwenbosmile at gmail.com
Mon Feb 13 13:53:12 EST 2012


Hi,

I am running rx_timed_samples.cpp of UHD 3.3.0 using USRPN210 with XCVR2450.

I set the rx rate to 1Msps, the type of sample is
uhd::io_type_t::COMPLEX_FLOAT32,
when the program is running, the System Monitor shows the receiving data
rate is 4MB/s.

Here the question comes:
COMPLEX_FLOAT32 means 4 bytes for I phase and 4 bytes for Q phase, so one
sample should have 8 bytes.

The rx rate is 1M sample per second, so the receiving data rate should be
8MB/s, not 4MB/s.

Could anyone tell me where the problem is? The OS I am using is Ubuntu 10.04

Thanks in advance!

-- 
Wenbo
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