Hello
1- i want to know if there is a manual showing how to put all the part of
the package togheter.
2- If i want to know the frequencies that is not use in an area, what can i
install to let GNU radio communicate with Umtrx to show me the frequency
graph that will help me choose the non used frequencies (it is possible
with USRP and i want to know how to do it with Umtrx).
3- My last question is to know if handover is possible with just OpenBTS
2.8 and Umtrx modules or it required an OpenBSC and OsmoBTS architecture.
Thanks,
Best Regards
Dear Sir,
please i need help, I am getting started using myriad-rf board, i need to
connect between TMS320C6670 Evaluation Module (Texas Instrument) and
myriad-rf board, i want to know if the DE0-Nano interface board is the right
choice to interface between two platforms? And if there is any other
interface board ?
please contact me If you need more details.
Thanks in advance
Regards,
Batool
---------
Eng.Batool Yasser
Sales & Technical Support Engineer
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Computer Simulation Technology
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Hi Alexander Chemeris,
According to rx_multi_samples , I write a program to receive samples from two channels on the same board.
The program receive samples from 2 channels and calculate the signal strength respectively. The signal is from a BTS arround.
I find the difference of signal strength is very big, about 20dB, and channel 1 is bigger than channel 0.
I exchange the antenna and feeder of the them, but the result is same.
I think there is some problem, but I cann't find it.
Would you please give me some sugguestion?
Best Regards.
Jiang Wenyi
Hi all,
Just want to let you know what kept us busy recently - we've deployed
UmTRX based UmSITE base station at two big events in the Netherlands:
http://fairwaves.ru/news/2013-07-24-open-source-telecom-rocks-at-Dutch-even…
The installation used UmTRX and 2W amplifiers for RF hardware and ran
OsmoBTS/OsmoNITB/LCR/Freeswitch stack for software. A couple of bugs
fixed, a couple of bugs workarounded, but generally it provided good
service and users are very happy.
More news and more real life testing to come!
--
Regards,
Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио
http://fairwaves.ru
Hi All,
I install all the OpenBTS and UHD packages according to manual pages. When I start transceiver, it output some errors and exit.
$ sudo ./transceiver 1
linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.004.000-unknown
ALERT 3048163072 19:59:34.7 UHDDevice.cpp:345:set_rates: Failed to set master clock rate
ALERT 3048163072 19:59:34.7 UHDDevice.cpp:346:set_rates: Actual clock rate 1.3e+07
ALERT 3048163072 19:59:34.7 runTransceiver.cpp:94:main: Transceiver exiting...
Jiang Wenyi
Hi Thomas,
Could you look into this crash dump of the OpenBTS transceiver? We're
trying to run the version from the umtrx_dual_test branch with
OsmoBTS.
---------- Forwarded message ----------
From: Andreas Eversberg <andreas(a)eversberg.eu>
Date: Mon, Jul 8, 2013 at 12:05 PM
Subject: Crash of UmTRX transceiver with dual TRX
To: Alexander Chemeris <alexander.chemeris(a)gmail.com>
using umtrx_dual_test will cause this crash. even when only using a
single trx as usual.
openbsc osmo-trx # sh /root/run.umtrx
net.core.rmem_max = 50000000
net.core.wmem_max = 524288
linux; GNU C++ version 4.5.4; Boost_104900; UHD_003.004.000-unknown
transceiver: radioInterface.cpp:329: virtual void
RadioInterface::pullBuffer(): Assertion `num_rd == (625)' failed.
/root/run.umtrx: line 4: 15668 Aborted (core dumped)
/files/projects/gsm/osmo-trx/Transceiver52M/transceiver
(gdb) bt full
#0 0xb77b1424 in __kernel_vsyscall ()
No symbol table info available.
#1 0xb71a92b1 in raise () from /lib/libc.so.6
No symbol table info available.
#2 0xb71aaa8e in abort () from /lib/libc.so.6
No symbol table info available.
#3 0xb71a213b in ?? () from /lib/libc.so.6
No symbol table info available.
#4 0xb71a21f6 in __assert_fail () from /lib/libc.so.6
No symbol table info available.
#5 0x08050562 in RadioInterface::pullBuffer (this=0x85bd3c8) at
radioInterface.cpp:329
num_rd = 135212791
__FUNCTION__ = "pullBuffer"
__PRETTY_FUNCTION__ = "virtual void RadioInterface::pullBuffer()"
#6 0x08050ba3 in RadioInterface::driveReceiveRadio (this=0x85bd3c8) at
radioInterface.cpp:254
tN = <optimized out>
symbolsPerSlot = <optimized out>
rcvSz = <optimized out>
readSz = <optimized out>
samplesPerBurst = <optimized out>
#7 0x08051d63 in DriveLoop::driveReceiveFIFO (this=0x85bdc38) at
DriveLoop.cpp:245
No locals.
#8 0x08052f60 in RadioDriveLoopAdapter (drive=0x85bdc38) at
DriveLoop.cpp:291
No locals.
#9 0xb7795f07 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#10 0xb726864e in clone () from /lib/libc.so.6
No symbol table info available.
--
Regards,
Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио
http://fairwaves.ru
Hi All,
I want to build kal-v0.4.1.
When use CXXFLAGS='-W -Wall -O3' ./configure
Output errors:
configure: error: Package requirements (usrp >= 3.3) were not met:
No package 'usrp' found
I'm using ubuntu 12.04. How can I install libusrp?
' sudo apt-get install libusrp-dev' not working!
Jiang Wenyi
