iSDR App Reviews

I just got this app and now I can listen to any shortwave radio station whenever I want, wherever I want!

I like this app if I knew how to use it the directions arent really clear. I have the shortwave radio skills of a walkie talkie. Pls let me know how to better use it because I am a boy scout and I need to be able to have a walkie talkie on my phone.

Only getting same three recorded signals despite choosing multiple frequencies 1000s apart.

Pretty neat little app.good audio.

This is a completely fake app. It provides no real shortwave live streaming. The audio is prerecorded voices and morse code just to make people who dont know anything about shortwave get excited.

SDR is Software Defined Radio and needs an external receiver ("radio") plugged into your audio/microphone jack of your iPhone. The app is the controlling software for the external radio. There are also Windows and OS X applications that will let you do the same thing. The sample files in this app are just to give a taste of how the app works. This app does not stream shortwave radio nor is it supposed to. Please read the description of this app and google SDR or Software Defined Radio before downgrading the app. Not affiliated with iSDR. Just a SWL/Ham enthusiast.

If you dont understand what this is, dont download it and then make useless remarks in a review. Its not a receiver, not by itself anyway. While you could use it real time by routing the iq stream from an external receiver to the mic input I "feed it" prerecorded IQ files I generate from a digital receiver connected to a PC. This software provides portable, offline analysis and demodulation of signals within the recorded spectrum of the file. Pretty amazing feat give the limited horsepower in an iPad. 73 ab1jv

Got an update today for iSDR and now the app crashes after the splash screen. Will provide a better review if the author fixes this problem.

Previous version worked, the latest version does not. Running iOS 6.1.3.

Crashes immediately after launch. Havent seen anything yet about a fix. Maybe not interested in making it work with previous versions of the OS. Glad I didnt pay for this.

Tried application with IQ samples dumped from others receivers and works great. however I am wondering and requesting support for the USB RTL-SDR dongles. Preferable via a direct usb connection through the camera connection kit. Or via RTL_TCP (samples over the Internet live)/ IQ sample dumps. It would be awesome, because then I could avoid buying a nexus for mobile SDR usage.

This app does nothing with software defined radio. It just "gives you the experience of software defined radio using sampled data."

I bought this app to use as a Panadapter with my Elecraft KX3. For only 99 cents its a real bargain. I connect the iPad to my radio through a Griffin iMic and the Apple camera connection kit. I use the tuning knob on the radio and watch the peaks on the spectrum display move left or right, depending on which direction Im tuning. When a peak is at the center of the display, I hear that station coming out of my radio. The waterfall display is a lot harder to use this way, so I only use the spectrum display. I hope Digital Confections will add a dual spectrum/waterfall display like on Elecrafts panadapter. Thats the only reason I didnt give the app 5 stars.

For 99 cents its hard to complain about this app. Struggled with a few poor connections but once the iMic was properly connected to the KX3 everything worked as advertised. Panadapter bandwidth is limited to a max of 44 kHz as near as I can tell, but the resolution on the iPad was great, and it was easy to locate strong signals and relatively open spots in the cw bands to facilitate working expeditions. No point and click to tune the radio obviously, but a great addition to the KX3 if youre carrying an iPad or iPhone already.