Clayton's sdr-examples are for GnuRadio 3.7.1. Your
issue is that you haven't built gr-iqbal. It's not really
needed, so you can just delete that block in the
graphs.
Ron
On 2/13/2014 3:31 PM, Al Smith wrote:
I am new to gnuradio and have spent the last few days reading every
tutorial I can find. I have set up both 3.7.1 and 3.6.5 in separate
test environments in 2 VMs. I am using a BladeRF SDR with dual 900MHz
antenna.
I've been asked to test 2 devices which will controlled remotely over
the FLEX paging network. I can see some blocks have been built into
gnuradio-companion, FLEX Deinterleave and FLEX Synchronizer. I also
found some samples here https://github.com/argilo/sdr-examples but I
think these were built for a different version of gnuradio possibly.
When I run the python script pager_rx.py or pager_rx_929.py it pops
up with a nice waterfall display and I even get some text decoded
signals in the terminal window, but within a few seconds the display
goes gray and I cannot change any of the sliders and must force quit
to get out. I loaded the multi_tx.grc in gnuradio-companion just to
get an idea of how to build a flow chart for FLEX, but I get some
errors about missing blocks.
Loading: "/home/test/sandbox/gnuradio-builds/sdr-examples/multi_tx.grc"
>>> Error: Block key "iqbalance_fix_cc" not found in Platform -
grc(GNU Radio Companion)
>>> Error: Connection between blocks_add_xx_0(0) and
iqbalance_fix_cc_0(0) could not be made.
sink block id "iqbalance_fix_cc_0" not in block ids
>>> Error: Connection between iqbalance_fix_cc_0(0) and
blocks_add_const_vxx_1(0) could not be made.
source block id "iqbalance_fix_cc_0" not in block ids
>>> Done
If I'm going to build my own flowcharts, I'll need to know what the
blocks in the existing flows are doing, but I haven't seen any good
resources for that. If I can get some of the existing scripts to run
properly that might help as well. Any suggestions on that? Here is
the output when I run the pager_rx.py
gr-osmosdr v0.1.0-66-g154c4ddd (0.1.1git) gnuradio 3.7.1
built-in source types: file fcd rtl_tcp bladerf rfspace
[bladeRF source] Using nuand LLC bladeRF #0 SN 909d...c10c FW v1.6.1
FPGA v0.0.2
According to the readme this script is meant to be used with an
RTL-SDR rather than my BladeRF but it seems to detect the blade and I
don't see any hardware specific modules being imported. Am I missing
something?
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