105 Results for "rtl-sdr"

USB cable extension tips, pics, and the dirty things your computer doesn't want you to hear
Log from Enter the complex world of SDR
So that computer of yours, I'm sad to inform you that your PC is a RF menace, and the DVB tuner must connect to it. This isn't ideal for the SDR, it's like having a cell phone conversation while present at a Rock concert. So our first step is to build...

Bought a cheap dvb stick, now what?
Log from Enter the complex world of SDR
Often this is posted within forums, and as comments to articles about software defined radio. No matter what the post contains we often see something like this. "Hackers use DVB dongle to reveres engineer the 70's song Do The Hustle" ; and the first...

How to hack a car
Details from How to hack a car
Just to be clear, no, just by reading this you won't be able to go around unlocking car doors. I worked on this project because I was interested in learning the basics of radio and how data is modulated... also I want to be able to tell people I hacked...

Principle Of Operation
Log from Open Field Probe
Near field probes detect time-variant electric and magnetic fields in the "near field" around an electrical device, ie the region within one wavelength where normal radiative effects have not yet been expressed. Energy can be strongly coupled into probe...

Radio Direction Finding Techniques
Log from Bloodhound: Autonomous Radiolocation Drone
To be able to locate a radio beacon using the drone, the appropriate radiolocation technique needs to be determined. This log entry looks at the methods available and assesses their suitability for using with SDR on the drone, to find the best method...

HAM stuff
Hacker page by Christoph Tack
How Belgian legislation discourages HAM-radio After passing the practical exam in your local HAM-section, the theoretical part of the exam only takes places at the BIPT offices in BrusselsYou require an operating certificate, which allows you to use...

Closing the Security Gap
Log from The Moteino Framework
HTTP(S) and Websockets SecurityThere are a lot of open source home automation attempts out there. Many are missing some essential security that leaves them vulnerable. Those that actually allow the user to control physical things in their...

ESP433: WiFi to 433MHz bridge
Details from ESP433: WiFi to 433MHz bridge
If you already know about simple ASK/OOK 433MHz devices, you probably know they're pretty easy to interact with via software defined radio. It felt like a shame to tie up a whole SDR module just to control some lights, so I wanted to design some...

SatNOGS now equipped with Diplexer
Log from SatNOGS - Global Network of Ground Stations
We've been thinking for some time that there is no need to install two separate RTL-SDR dongles to cover both VHF and UHF. It increases power consumption on WR703N without actually having any benefit, as using two dongles simultaneously is limited by...

Hack Chat Transcript, Part 2
Log from Software Defined Radio Hack Chat
BSA Secure12:31 PM@RichardCollins I'm playing with Viasat Surfbeam 2 modems and their TRIA's (Outdoor units) that supports Input (RX) Frequency 18.3 to 20.2 GHz Output (TX) Frequency 28.1 to 30.0 GHz. I'm getting them on various none-ebay portals for...

Smaller Flip-Flops
Log from Q2 Computer
I started out by looking into RTL as a possible substitute for NMOS for the Q2 as a way to speed it up. In the end, I think NMOS is probably the best bet:RTL requires base resistors, which greatly increases component count.An RTL gate always draws power...

Multiple Modulation Methods
Log from Serial Port SDR
So far, I've experimented with three methods for modulating audio onto RF output from the serial port. They're all pretty simple, and all cause a ton of spurious emissions up and down the band, but are interesting to play with. The first...

Hack Chat Transcript, Part 1
Log from Designing Hardware Challenges Hack Chat
Hi all, welcome to the Hack Chat. I'm Dan, I'll be moderating today for our guest Michelle Thompson, who's here to tell us about what goes into designing hardware challenges for cons. I'm not sure I saw her log in yet, though - are you out there, Michelle?...

Set up an external antenna
Instructions from Cell Phone 4G LTE Repeater / Booster / Femtocell
A good quality external antenna arrangement is absolutely essential and the best cable, fittings and antenna should be selected.The cable should be rated to 0.3 dB loss per metre or better and the antenna should be a Yagi type with performance of 6dB...

Barnabas-Bot
Instructions from Barnabas-Bot
1: The Robotics KitKit ContentsWe have provided the contents of our kit below so that inventors all over the world can make their own DIY version of this simple robot kit. Electrical Stuff1 x Rectangular Arduino Uno compatible board 1 x A-B USB Cable....

|<
<
1
2
3
4
5
>
>|