QandAs » History » Revision 8
Revision 7 (Anonymous, 04/22/2017 04:04 PM) → Revision 8/11 (Anonymous, 04/22/2017 04:04 PM)
= Questions and Answers = == Do I need a USRP? == The USRP is not essential. You can use sample files collected by others or one of a number of alternative hardware approaches. If you already have a suitable radio receiver you can even interface to it to via your PC's soundcard. Check out the [HardwarePage hardware page] for a short write-up of approaches people are investigating. == How do I install OP25? == At present you can only install OP25 from source. Check the [BuildInstructionsPage build instructions] for details. == I have an error in libtool - what's going wrong? == I run the ./bootstrap and ./configure commands succesfuly but the make command failed with the following error: {{{ libtool:Version mismatch error. This is libtool 2.2.4, but the definition of this LT_INIT comes from an older release. You should recreate aclocal.m4 with macros from libtool 2.2.4 and run auto conf again. }}} The aclocal.m4 file is auto-generated as a result of running the 'bootstrap' script that comes with the tarball. It is safe to delete 'aclocal.m4' - bootstrap will re-create it. The usual routine is to run the following after un-tarring the tarball - {{{ sh bootstrap ./configure make make install }}} If you've made other changes in the middle of this process, such as installing new stuff, it might be best to always re-start at the first of these steps (bootstrap)... == The self-test doesn't work == When I try the python self-test programs I get something like this:- {{{ ./qa_fsk4.py Traceback (most recent call last): File "./qa_fsk4.py", line 24, in <module> import fsk4 ImportError: No module named fsk4 }}} This occurs because you aren't meant to run qa_fsk4.py or qa_op25.py directly. Instead you should run "make check" from the block's top-level directory. == Why are you guys so s-l-o-w? == Well, we're a part-time hobby effort by a couple of enthusiasts. If you want to speed us up please feel free to help. == How can I help? == We're looking for help with coding, testing, providing hardware, advice, gathering sample data, writing documentation or providing hardware. donations, Whatever you can volunteer is probably welcome. Error-correcting codes abound in P25 so any help is especially welcome there.
