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Amateur Radio Projects and Software Defined Radio

SDRPlay RSP2 First Look Video

First Look Video of the new SDRPlay RSP2. Featuring a quick overview of the new features. The RSP1 and RSP2 signal comparison was done in realtime using the same antenna attached to the RSP1 and RSP2. This means that there is some amount of small signal loss due to the splitter. The RSP2 antenna was connected to the Port A connector on the RSP2 to make the comparison as even as possible. According to SDRPlay, the RSP2 Hi Z port can perform a bit better on AM broadcast and HF bands. To make things as even as possible both the RSP1 and RSP2 were used with the default settings for each radio. Of course both the RSP1 or RSP2 can perform a bit differently depending on the tweaks you make within SDRuno. Also performance of the RSP2 may change as SDRuno is updated to better leverage the new features of the RSP2.…

SDRPlay RSP2 Review

Introduction

If you have read our past articles on the SDRPlay RSP, you probably noticed that it has been a highly regarded SDR receiver here at HRS. It was named as the best SDR radio available in its price category. The SDRPlay RSP is even good enough to hold its own against far more expensive SDR products. Not to mention that it comes with excellent support from SDRPlay team. Over the past year, the SDRPlay got even better when SDRPlay acquired the excellent Studio One SDR software and adapted for use with the SDRPlay RSP. The new version of Studio One for the SDRPlay was renamed to SDRuno. The addition of SDRuno to the SDRPlay makes the RSP even a better value by adding a very powerful SDR program with a very attractive and professional user interface. Unlike some SDR programs that look pretty dated in comparison. The SDRPlay team continues to add new features and improvements to SDRuno on a very frequent basis. Not to mention that the price of the SDRPlay RSP has been lowered to $129 and is easily available in the US from Ham Radio Outlet. With the SDRPlay RSP’s low price, continous coverage from …

SDRuno Update

If you are using the SDRPlay, you might want to head over to the SDRPlay Webpage and download the latest version of SDRuno. There are some new features that you might find useful. Not to mention that the bandwidth for non-SDRPlay SDRs has been increased to 2.5 MHz if you are using a RTL SDR or other DLL supported SDRs. Here are the details:

Today, we released version 1.1 of SDRuno, specifically for RSP. New features include a calibrated power measurement facility, an SNR meter and automatic S-meter calibration. There are many additional improvements and fixes. To find out more about all the additional features, documentation can be found on http://www.sdrplay.com/docs/SDRplay_SDRuno_Release_Notes.pdf and the software is available to download from http://www.sdrplay.com/windows.html
Paul Jones and Mike Ladd have worked tirelessly to get the new features documented in an updated version of the SDRuno Cookbook: http://www.nn4f.com/SDRuno-cookbook.pdf
Other SDRs can also use SDRuno with a new increased bandwidth limit of 2.5MHz (e.g. RTL-SDR)

Why Apple’s iMac May be the Best PC for SDR Applications

Introduction
Most radio hobbyist these days have a PC in the shack these days. Even though convenient and sometimes necessary these PCs can be the source of annoying RFI (Radio Frequency Interference). Of course with many SDR systems, PC’s are a necessary accessory. PC RFI is not limited to affecting SDR systems but also affect analog radios also. It’s just more obvious on SDR radio systems because the RFI can been seen on the spectrum / waterfall display. What causes this? Modern PCs can generate a great deal of local noise via it’s CPU and possibly it’s power supply. The other large RFI generator is the LCD display. Between the two, they can wreak havoc on radio reception. Modern PCs now usually contain multi-core processors that can generate a good deal of RFI. It really doesn’t help matters at all that most PC manufacturers use a large amount of plastic in the cases which allows RFI to leak out more easily. LCD monitors another large source of RFI are all over the place. Some LCD monitors only generate a small amount of RFI while others generate a good deal. All this interference can be seen and heard on your SDR …

Adding Streaming Audio to BLUEDUO

This is a follow up video for adding streaming audio via WiFi to the Android based BLUEDUO remote display for the Elad FDM-DUO.This is accomplished by using the Soundwire audio streaming Android app. You must also install the Soundwire server application on a PC or Raspberry Pi. The audio stream from the FDM-DUO can be accessed via the TX USB connection. It is not necessary to run the FDM-SW2 for the streaming audio nor for the use of the BLUEDUO Android app. Doing so will confuse the BLUEDUO app running on your Android device. Once this is setup you can then use the BLUEDUO app and the Soundwire app to listen to and control the FDM-DUO from a remote location in your home as long as the location is in range of your bluetooth and wifi signal.The paid version of Soundwire will give you additional options for tweaking or reducing latency depending of your particular WiFi setup for best performance. However, increasing latency for better streaming performance may make the BLUEDUO’s scope appear a little behind the spectrum / waterfall. It’s best to try to reduce the latency to it’s lowest level while maintaining good streaming audio quality.…

Wireless Touch Screen Remote for the Elad FDM-DUO

With the release of the Icom 7300 a few months ago, a built in spectrum / waterfall display has become a very popular idea. The little Elad FDM-DUO when connected to a computer and the FDM-SW2 software clearly trumps the IC-7300 when it comes to the powerful features of PC driven SDR. However, sometimes something simpler might be better at times. This has been the charm of the “no computer needed” Icom 7300.  The Elad FDM-DUO is also a standalone knob and button controlled SDR, but you lose the additional functionality of the Spectrum / Waterfall when operating standalone. Thanks to the hard work of Giavanni HB9EIK in cooperation with Elad you can now add a wireless bluetooth remote control scope to the FDM-Duo using an Android tablet or phone. The remote will allow for touch tuning of the Elad FDM-DUO via the the spectrum /waterfall display as well as change bands, toggle the PTT and Tuning features, and turn on and off various setting like noise Noise Blanker, Noise Reduction, etc. All with no PC required. Since the scope / remote is wireless, it can be placed in a more convenient location or operating position to allow for easier …

SDRplay announces the acquisition of Studio 1 SDR software

28/April/2016, Wakefield UK:
SDRplay announces the acquisition of Studio 1 SDR software

SDRplay Limited has today announced that it has reached an agreement with Sandro Sfregola, (formerly CEO of SDR Applications S.a.s.) to acquire all Rights, Title and Interest in Studio 1 a leading software package for Software Defined Radio applications.

Jon Hudson, SDRplay Marketing Director said: “We are delighted to have reached this agreement with Sandro to acquire Studio 1. Studio 1 is the perfect complement to our SDR hardware products and gives us the ideal platform to deliver a complete class leading SDR solution for our customers. We look forward to working with Sandro and further developing Studio 1 to unlock the full capability of our current and future products”.

Hudson added: “Studio1 has established a strong customer base with users ofmany other SDR hardware products. Studio 1 will continue to be available as a stand-alone product from WoodBoxRadio http://www.woodboxradio.com/studio1.html for the foreseeable future , but we also look forward to further developing Studio 1 to specifically benefit present and future owners of our products”

Sandro Sfregola added: “I am very pleased to have reached this agreement with SDRplay. The long term future for SDR lies in complete