Re: [Hackrf-dev] features

2016-01-11 Thread Paul Connolly
SourceSink ) it says "The firmware changes have been in the hackrf git master, but there's no official firmware binary published yet (02.06.2015)" On 11/01/2016 23:25, Cinaed Simson wrote: > On 01/03/2016 02:38 AM, Paul Connolly wrote: >> Do not used the stop button within gnur

Re: [Hackrf-dev] Hackrf with an External Amplifier

2015-09-12 Thread Paul Connolly
If you look at the input and output on the schematic, it is clear that U25 is TX and U13 is RX. https://github.com/mossmann/hackrf/blob/master/doc/hardware/hackrf-one-schematic.pdf And if you look at a photo of the board, U25 would be a 6 pinned chip, approximately half way between the SMA and

Re: [Hackrf-dev] Matlab Simulink interface for HackRF

2015-08-28 Thread Paul Connolly
http://gnuradio.org/redmine/projects/gnuradio/wiki/Octave Octave is the most popular analysis tool with GNU Radio, as the GNU Radio package includes its own set of scripts for reading and parsing output. Matlab is a closed source tool, and very expensive--but if you already have it installed, you

Re: [Hackrf-dev] Ghost attack using HackRF

2015-08-11 Thread Paul Connolly
If you want a hackrf_transfer binary for Microsoft Windows then install a compiler and build it yourself. It is not rocket surgery :) https://github.com/mossmann/hackrf/blob/master/host/README.md On 11/08/2015 20:02, C Crane wrote: I agree. It seems like it would have been one of the first

Re: [Hackrf-dev] ubuntu 14.04lts

2015-07-17 Thread Paul Connolly
. Al *From:* Donald Pupecki pupe...@sunyit.edu *Sent:* Wednesday, July 08, 2015 3:56 AM *To:* Paul Connolly eei...@gmail.com *Cc:* hackrf-dev@greatscottgadgets.com *Subject:* Re: [Hackrf-dev] ubuntu 14.04lts Well, Heres an argument for just doing it from source. I made a little script

Re: [Hackrf-dev] ubuntu 14.04lts

2015-07-07 Thread Paul Connolly
There is only one line listed in that link, I'd run the following to reduce the size of the listing a little bit (it will be mostly be cosmetic). $ sudo apt-get autoremove $ sudo apt-get clean $ ( sudo find / -name *gnuradio* -print 2/dev/null ) | curl -F 'sprunge=-' http://sprunge.us On

Re: [Hackrf-dev] Amp On or Off

2015-06-30 Thread Paul Connolly
If you set the sample rate to 20MSPS and decimate in your flowgraph down to a bandwidth of 1.25MHz (2000/(2^4)) you will have increased the observed signal level by 12dB (3dB*4) with no possible damage to hardware. Provided at least one bit in the ADC sample is being tickled by the signal of

Re: [Hackrf-dev] Analog TV transmitter

2015-05-26 Thread Paul Connolly
:25 GMT+02:00 Paul Connolly eei...@gmail.com: I don't think that anyone has transmitted teletext with the HackRF (yet) , but I could be wrong ? Teletext never caught on in the US, so you may have to go to the standard http://www.etsi.org/deliver/etsi_i_ets/300700_300799/300706/01_60

Re: [Hackrf-dev] using hackrf with the raspberry Pi 2

2015-03-25 Thread Paul Connolly
2MSPS is the lowest samplerate that the HackRF, realistically supports without aliases, because the smallest bandpass filter in the MAX2837 is 1.75MHz. The USB in all RPi hardware is known to be problematic for anything requiring high throughput. On 25/03/2015 11:48, Derek Murphy wrote: Hmm, I

Re: [Hackrf-dev] setting hackrf to receive atsc tv signal

2015-01-21 Thread Paul Connolly
For TX look at atsc-hackrf.py in https://github.com/argilo/sdr-examples On 21/01/2015 17:02, pete M wrote: Anyone did manage do decode video from over the air atsc signal in North america? Same, anyone been able to TX a atsc signal with a hackrf?

Re: [Hackrf-dev] FW: deaf HackRF

2015-01-19 Thread Paul Connolly
As the sample rate increases, so does the the noise floor. Or with more bandwidth comes more noise. So giving the numbers without the sample rates used is not useful. In SDR# for the HackRF you can type in a sample rate in the sample rate pull down box, try using 2 MSPS. And for the RTL2832 try

Re: [Hackrf-dev] My HachRf Stops Wroking

2015-01-08 Thread Paul Connolly
Another thing would be of interest would be if the time to fault varies with the temperature of the room. So if the room tempature was 20 degrees Celsius (68F) is the time to fault longer than if the room initial temperature was 25 degrees Celsius (77F). Basically is there a bad solder joint in

Re: [Hackrf-dev] Power Output

2015-01-07 Thread Paul Connolly
From the link below - 10 MHz to 2150 MHz: 5 dBm to 15 dBm, generally increasing as frequency decreases https://github.com/mossmann/hackrf/wiki/HackRF-One#transmit-power On 07/01/2015 23:23, Tom wrote: Was wondering if anyone has a sweep of the HackRF's output power from 50MHZ to 1000MHZ at the

Re: [Hackrf-dev] Did i kill RF frontend amplifier ?

2014-12-03 Thread Paul Connolly
Most LNB's would have a gain of about 60 dB, So I would guess that +23dBm to +26dBm was the signal level going into the HackRF One with a maximum safe input across the entire spectrum of -5dBm (LNA on) [ https://github.com/mossmann/hackrf/wiki/HackRF-One#receive-power ]. Best to leave the LNA off

Re: [Hackrf-dev] Mixer Conversion Loss

2014-12-02 Thread Paul Connolly
Since most of the signal path is the same I would say so. https://github.com/mossmann/hackrf/wiki/Hardware-Components#block-diagrams On 03/12/2014 07:24, Ibrahim Basaran wrote: Yes, I'm talking RX not TX. Does RX has the same limitation as TX? İbrahim BAŞARAN 3 Ara 2014 tarihinde 02:56

Re: [Hackrf-dev] RX data loss with hackrf_transfer

2014-12-01 Thread Paul Connolly
OSQZSS, Have you tried running something like: hackrf_transfer -r /dev/null -f 157542 -s 260 -n 26000 -g 30 -l 40 -a 0 To confirm that is it not a slow harddisk access time problem. Or maybe write to a ramdisk instead: $ mkdir /tmp/ramdisk $ free -m $ sudo mount -t tmpfs -o size=512M

Re: [Hackrf-dev] GRC Blocks ??????

2014-10-04 Thread Paul Connolly
See: http://gnuradio.org/redmine/projects/gnuradio/wiki/Move_3-6_to_3-7/16 Try running: http://nathanwest.us/grc_to_37.sh to convert the grc file. On 04/10/2014 15:49, Brian B.Riley wrote: http://www.wulfden.org/usb_tx_bpf.grc.png http://www.wulfden.org/usb_tx_bpf.grc.png On Oct 3,