Raspberry Pi and Wireshark
Building a network capture probe with Raspberry Pi
The great news is you can do it easily by installing tshark on your system and running a simple script from one of our developers, Tom. The even better news is that you can lower the memory footprint of doing the capture with tshark by using Wireshark’s included packet capture process, dumpcap. In an embedded environment like a Raspberry Pi, this allows you to bypass tshark’s processing and send the resulting capture directly to CloudShark.
Showing posts with label Raspberry Pi and Wireshark. Show all posts
Showing posts with label Raspberry Pi and Wireshark. Show all posts
[PI-SDR] Raspberry PI 3 + 7" Touchscreen + RTL-SDR + GQRX test
[PI-SDR] Raspberry PI 3 + 7" Touchscreen + RTL-SDR + GQRX test
For some time I'm interested in building autonomous SDR Receiver based on commonly available and relatively cheap components. Here is some test with RPI 3, RTL-SDR, upconverter and GQRX software.
For some time I'm interested in building autonomous SDR Receiver based on commonly available and relatively cheap components. Here is some test with RPI 3, RTL-SDR, upconverter and GQRX software.
TETRA decoding on Windows!
TETRA decoding on Windows!
To capture the signals I was using an RTL SDR which is a very cheap device that allows you to tune to a wide range of frequencies. If you look carefully in the results in the link, you can find them for less than £10/$12. You can find one to buy at this link:
http://smarturl.it/rtlsdr (Redirecting link for your local area)
Video by cURLy bOi who wrote the wintelive software and showing how to install it: https://youtu.be/OTKn1UwYMBI
The audio on this TETRA system is often not very good. I'm not sure of the exact reason for this but it sounds like they have the mic gain set to a fixed value rather than using AGC, so their voices are often way too loud or way too quiet. I don't know why they would do this. Maybe the radios they use aren't able to do AGC, in which case they must not be very good radios. I had to adjust the audio gain in this clip to reduce the volume of some radio users and increase the volume of others.
Please don't comment asking me for help on running this software. It is not as difficult to set up as the linux version, but it is still relatively difficult compared to running an average windows program. If you can't figure it out yourself by following the instructions provided with the program, then forget it. The software is only a work in progress. It is not guaranteed to work for you.
To capture the signals I was using an RTL SDR which is a very cheap device that allows you to tune to a wide range of frequencies. If you look carefully in the results in the link, you can find them for less than £10/$12. You can find one to buy at this link:
http://smarturl.it/rtlsdr (Redirecting link for your local area)
Video by cURLy bOi who wrote the wintelive software and showing how to install it: https://youtu.be/OTKn1UwYMBI
The audio on this TETRA system is often not very good. I'm not sure of the exact reason for this but it sounds like they have the mic gain set to a fixed value rather than using AGC, so their voices are often way too loud or way too quiet. I don't know why they would do this. Maybe the radios they use aren't able to do AGC, in which case they must not be very good radios. I had to adjust the audio gain in this clip to reduce the volume of some radio users and increase the volume of others.
Please don't comment asking me for help on running this software. It is not as difficult to set up as the linux version, but it is still relatively difficult compared to running an average windows program. If you can't figure it out yourself by following the instructions provided with the program, then forget it. The software is only a work in progress. It is not guaranteed to work for you.
Raspberry Pi 2 and RTL-SDR into an amateur radio transceiver
Raspberry Pi 2 and RTL-SDR into an amateur radio transceiver
It turns your Raspberry Pi 2 and RTL-SDR into an amateur radio transceiver! (Released under BSD license.)
ha7ilm/qtcsdr
qtcsdr
qtcsdr makes a ham transceiver out of your Raspberry Pi 2 and RTL-SDR!
Click on the video to see it in action:
It turns your Raspberry Pi 2 and RTL-SDR into an amateur radio transceiver! (Released under BSD license.)
ha7ilm/qtcsdr
qtcsdr
qtcsdr makes a ham transceiver out of your Raspberry Pi 2 and RTL-SDR!
Click on the video to see it in action:
Raspberry Pi RTL-SDR Broadcastify
Raspberry Pi RTL-SDR Broadcastify
These instructions show you how to purchase and setup a completely self contained Raspberry Pi with an RTL-SDR stick(s) to broadcast a live audio feed to Broadcastify.com
These instructions have been verified and tested as working on a Raspberry Pi 2 Model B Project Board - 1GB RAM - 900 MHz Quad-Core CPU. Two separate feeds running rtl_fm broadcasting both AM aviation and FM business frequencies simultaneously have been verified as working just fine.
These instructions show you how to purchase and setup a completely self contained Raspberry Pi with an RTL-SDR stick(s) to broadcast a live audio feed to Broadcastify.com
These instructions have been verified and tested as working on a Raspberry Pi 2 Model B Project Board - 1GB RAM - 900 MHz Quad-Core CPU. Two separate feeds running rtl_fm broadcasting both AM aviation and FM business frequencies simultaneously have been verified as working just fine.
RASPBERRY PI REMOTE RTL-SDR GUI SOFTWARE: MNM4SDR
Recently RTL-SDR.com reader Slaven Krilic wrote in to use to announce his project called MNM4SDR which stands for Monitoring Network Manager for RTL-SDR. The software allows you to set up a remote Raspberry PI embedded computer with an RTL-SDR dongle attached and access it remotely through a Windows PC GUI.
Unlike other server software such as rtl_tcp, raw IQ data is not sent over the network. Instead audio is first compressed in lossless FLAC or OGG formats. This allows you to use much slower network or internet connections. The software also allows you to collected RF scans over a large bandwidth in a similar way to rtl_power.
The software works over an SSH connection and requires that you have RTL-SDR and VLC set up on your Rasperry Pi first.
RTL-SDR and a Raspberry Pi
Showing how to perform a simple record and replay attack on 433 MHz ISM band devices using nothing more than an RTL-SDR and Raspberry Pi. The Raspberry Pi runs RPiTX which allows it to transmit from a GPIO port with just a wire attached. No extra transmitter hardware is required.
What is RTL-SDR?
What is RTL-SDR?
RTL-SDR is a very cheap software defined radio that uses a DVB-T TV tuner dongle based on the RTL2832U chipset. With the combined efforts of Antti Palosaari, Eric Fry and Osmocom it was found that the signal I/Q data could be accessed directly, which allowed the DVB-T TV tuner to be converted into a wideband software defined radio via a new software driver.
RTL-SDR is a very cheap software defined radio that uses a DVB-T TV tuner dongle based on the RTL2832U chipset. With the combined efforts of Antti Palosaari, Eric Fry and Osmocom it was found that the signal I/Q data could be accessed directly, which allowed the DVB-T TV tuner to be converted into a wideband software defined radio via a new software driver.
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