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 More »

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). More »

Icom 7300 Review

Introduction

Last summer Icom announced a new radio that caused quite a stir in the amateur radio community. The new Icom IC-7300 was the first SDR HF / 6M direct sampling transceiver More »

Elad FDM-DUO – SDR Done Right!

Introduction
The SDR-DUO has been on the bench in day to day use for about 2 months now so it’s time to talk about how it works out in “real world” use. More »

Best SDR Radios of 2015 and 2016 (so far)

Looking back over some SDR Radio products that were reviewed here and some that were not. Here is our picks of the litter so far:

Best “Dirt Cheap” SDR – $25
RTL Dongle More »

 

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.