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Tips for using WebSDR at RAF Hack Green. A Software Defined Radio in C# DVB-T USB TV RTL-SDR FM+DAB Radio Tuner récepteur Stick Realtek RTL2832U+R820T: High-tech. Upconverter Comparison: Nooelec Ham it Up vs SDR Up 100. A few weeks ago Akos from the SDR for Mariners blog did a review of the SDR Up 100 Upconverter, and he promised to compare it with the Nooelec Ham-it-up Upconverter when it arrived.

Upconverter Comparison: Nooelec Ham it Up vs SDR Up 100

He has now done the comparison, and written about it on his blog. For each test he used a gain of 0dB and the same 20 foot random wire antenna. Interestingly, his results show that the SDR Up 100 significantly outperforms the Ham-it-up upconverter. We believe that this may be as the SDR Up 100 has an LNA built into it whereas the Ham it up does not. Update: Akos has now included comparisons with various RTL gain settings. Beginner Antennas. Antenna size depends on the frequency you want to hear: higher frequency (bigger number) - smaller antenna.

Beginner Antennas

You need an antenna that receives signals from all directions - called omnidirectional.Materials make no difference: any type of wire is good, as long as it keeps its shape. Metal coat hangers are popular, multi-stranded or solid makes no difference. I'm a fan of No 10 house grounding wire. You need to connect your antenna to your RTL stick: coax cable is needed, read my hardware guide for details. Recommended beginner antenna A monopole with two radials optimised for 120-130 MHz - three 60 cm (2 foot) elements in a peace sign / Mercedes emblem shape, coax conductor connected to vertical element, braid to two sloping elements. Why? A more aesthetically pleasing solution is using screw terminal blocks and wood - this also enables quick disconnecting of antenna elements.

Put your antenna outside. How to build a satellite receiving station using a Raspberry Pi. Space and satellites are something that only few people are fortunate enough to interact with.

How to build a satellite receiving station using a Raspberry Pi

However, this is starting to change due to the rapid growth in capability of consumer electronics. In fact, you can receive and decode transmissions from satellites using only a Raspberry Pi, a USB software-defined radio receiver, and a few other cheap parts. In this blog post, I'll describe in detail how to put together such a system. Experimenting with receiving satellite signals is a lot of fun. Also, by receiving data from these satellites and sharing it with the satellite owners, you can help their scientific missions. Free Virtual Serial Ports Driver Software COM Port Null Modem Cable. By HHD Software Ltd.

Free Virtual Serial Ports Driver Software COM Port Null Modem Cable

HHD Software Free Virtual Serial Ports is a software package that allows you to create virtual COM ports. Created virtual COM port may be used in one of the following ways: Connected to a named pipe.Connected to another virtual COM port, forming a virtual "bridge" and emulating virtual Null-modem cable.Connected to two files. When an application opens a virtual COM port and "reads" data from it, data is read from an input file, and when it "writes" data to a serial port, data is written to the output file. Product Organization Technically, the product consists of the following components: Free Virtual Serial Ports Device Driver This device driver implements the functionality of the virtual serial port device. Free Virtual Com Ports ActiveX Control Provides rich application programming interface (API) for applications that want to create and manage virtual serial ports.

Free Virtual Com Ports Configuration Utility Supported Environments Request Feature. FunCube Upconverter - George Smart's Wiki. This page is about my HF Converter for the FunCube Dongle.

FunCube Upconverter - George Smart's Wiki

The FunCube Dongle Pro edition (here, FCD) gives unlimited access to the frequency range 64 to 1,700 MHz for reception of all modes. As a Radio Amateur, I was also interested in HF reception (frequencies from 0Hz to 30 MHz) and the lower part of VHF. I therefore needed a way of translating these low frequencies, say 0 Hz to 64 MHz (where the FCD starts). This is a simple process and can be achieved with a frequency mixer. Using a double-balanced mixer, suppression of the input frequencies can also be achieved. Here this means that mixing the two frequencies, F1 and F2 results in the sum F1+F2 and difference F1-F2.

With the careful selection of frequency for F1 and filtering of input signals F2, you can see how a signal present on the antenna (at F2) at 1 MHz could be translated to a frequency of 1+F1 MHz. There is also a need to filter the range of input signals present at F2. LabCentre Proteus ARES Next we have the PCB Mask. Getting started with software defined radio. RTL-SDR-Scanner Binaries - Browse /2013-09-20. Table layout template. SDR RTL 2832U decode DSTAR i6ibe.