Re: [Discuss-gnuradio] HELP: USRP1+WBXv3 "Overflow"

2014-12-15 Thread Ralph A. Schmid, dk5ras
An antenna made for 400-1000 MHz is not exactly the right thing to receive 88-108 MHz :) Just use a piece of wire, length about 75cm, this should be enough for first tests. Ralph. From: discuss-gnuradio-bounces+ralph=schmid@gnu.org [mailto:discuss-gnuradio-bounces+ralph=schmid@gn

Re: [Discuss-gnuradio] HELP: USRP1+WBXv3 "Overflow"

2014-12-15 Thread Marcus D. Leech
On 12/16/2014 12:24 AM, Thesis 2015 wrote: *Good day,* * * *We are beginners using the USRP1 with WBX v.3 50-2200 daughterboard and GNU radio Companion version 3.7.5.1 with UHD_003.008.000-18-g864f84b5 installed on Ubuntu 14.04 LTS operating system. Our goal in using these is to create an SDR

[Discuss-gnuradio] HELP: USRP1+WBXv3 "Overflow"

2014-12-15 Thread Thesis 2015
*Good day,* *We are beginners using the USRP1 with WBX v.3 50-2200 daughterboard and GNU radio Companion version 3.7.5.1 with UHD_003.008.000-18-g864f84b5 installed on Ubuntu 14.04 LTS operating system. Our goal in using these is to create an SDR WBFM receiver.We have followed what was done in t

Re: [Discuss-gnuradio] Odd Behavior

2014-12-15 Thread Brian Padalino
Unless your CPFSK is defined such that each bit is +/-90 degrees, then you're right. If you are setup to have +/-90 degree phase shifts per bit, then each bit transition time should fall on 0, 90, 180 or 270 exactly. No slight phase shifts one way or the other in the transmitter. My guess is tha

Re: [Discuss-gnuradio] Odd Behavior

2014-12-15 Thread Richard Bell
I think I want to back off this claim of odd behavior. The more I think about general CPFSK, the more I'm convincing myself that total accumulated phase will be changing, depending on the ratio of -1's to 1's. So seeing the real part slowly change phase should not be a worry, I think? Rich On Mon

Re: [Discuss-gnuradio] GRC display category [none]

2014-12-15 Thread madengr
Can you do that for Ettus RFnoc? I noticed that has no category either. Lou -- View this message in context: http://gnuradio.4.n7.nabble.com/GRC-display-category-none-tp51628p51635.html Sent from the GnuRadio mailing list archive at Nabble.com. ___

Re: [Discuss-gnuradio] GRC display category [none]

2014-12-15 Thread Martin Braun
On 12/15/2014 05:19 PM, Koslowski, Sebastian (CEL) wrote: > On 12/15/2014 05:13 PM, Ludwig Stephan (CR/AEH4) wrote: >> Thanks Martin for your immediate answer. Because I fear ignoring some >> blocks, which might become imminently useful, I meanwhile assembled a list >> of blocks, which have no ca

[Discuss-gnuradio] Odd Behavior

2014-12-15 Thread Richard Bell
Problem: Real and Imaginary outputs of CPFSK sometimes seem flipped in the transmitter. I'm using the CPFSK block to modulate for a binary FSK radio. All that I reference here is in the transmitter. There are 3 input paramaters for the block: k (modulation index), A (Amplitude) and N (Samples/Symb

Re: [Discuss-gnuradio] GRC display category [none]

2014-12-15 Thread Koslowski, Sebastian (CEL)
On 12/15/2014 05:13 PM, Ludwig Stephan (CR/AEH4) wrote: > Thanks Martin for your immediate answer. Because I fear ignoring some blocks, > which might become imminently useful, I meanwhile assembled a list of blocks, > which have no category. Of course, there is always the option of adding a (sen

Re: [Discuss-gnuradio] GRC display category [none]

2014-12-15 Thread Ludwig Stephan (CR/AEH4)
Thanks Martin for your immediate answer. Because I fear ignoring some blocks, which might become imminently useful, I meanwhile assembled a list of blocks, which have no category. Just in case someone might be in the same situation as I was: * AGC (BAZ) [gr-baz] * Bus Sink * Bus Sink Structure *

[Discuss-gnuradio] Hackfest at TU Delft

2014-12-15 Thread Tom Rondeau
Hey everyone, As a reminder to the community, we're having a hackfest at TU Delft during the last week or January. We still have some room left if there are a few more people out there who think they can make it. Turns out a few of the guys I was expecting are "working on a phd" and think that the

Re: [Discuss-gnuradio] GRC display category [none]

2014-12-15 Thread Martin Braun
Nope, only blocks in the block tree are browsable. M On 12/15/2014 02:30 PM, Ludwig Stephan (CR/AEH4) wrote: > Hello all, > > are there any means of showing blocks in GRC, which are assigned to > catetegory “[None]”? If I search in GRC for blocks without a > (recognized) category, these blocks

[Discuss-gnuradio] GRC display category [none]

2014-12-15 Thread Ludwig Stephan (CR/AEH4)
Hello all, are there any means of showing blocks in GRC, which are assigned to catetegory "[None]"? If I search in GRC for blocks without a (recognized) category, these blocks are shown, but with an empty search string, they are not shown at all. I am using GRC 3.7.6git-214-g56f69533 on a plain

Re: [Discuss-gnuradio] audio sink issue

2014-12-15 Thread Marcus Müller
Hello Sreena, the frequency translating FIR translates and then filters, ie. it moves your baseband signal to -19kHz and then filters a 1kHz band around 0Hz -- thus cutting away all your signal. By the way: I assume you want to produce sounds at 19kHz with your built-in sound card: you won't hear

[Discuss-gnuradio] audio sink issue

2014-12-15 Thread sreena p h
Hi I am trying to implement the following acoustic communication transmitter with PC File Source --> Packet encoder --> gmsk mod --> Rational resampler     --> Frequency Xlating FIR filter  --> comp to real --> audio sink Pc has inbuilt sound card. packet encoder is taking 8 samples per symbol,