An RTL-SDR Software Defined Radio receiver app for iOS devices. Listen to AM, FM, SSB and CW radio signals. View an RF spectrum and waterfall. Connect, via the rtl_tcp network protocol, to networked RTL-SDR USB peripherals.
This app requires an external rtl_tcp server. iOS devices do not currently support the direct connection of USB peripherals such as an RTL-SDR. Thus, the use of this app requires network access to a server, such as a Raspberry Pi (or Mac), with an RTL-SDR unit plugged into its USB port, and running the rtl_tcp protocol at an TCP/IP network address accessible from your iOS device. This allows a Raspberry Pi (or Mac) to act, essentially, as the USB port adapter for your iOS device. The rtl_tcp SDR app can also connect to hfp_tcp for the Airspy HF+, rsp_tcp for SDRPlay devices, and lmm_tcp for the LimeSDR Mini; see GitHub for server source code. This app can also connect to a Hermes Lite 2 QRP transceiver directly, if it has a known IP address, or through an hl2_tcp server.
No support is provided for installing any of the rtl_tcp or other tcp software needed to use this app (with a Raspberry Pi, or otherwise). Please do not download this app unless you are already familiar with Software Defined Radio, have an RTL-SDR or equivalent USB SDR peripheral, and have already installed and tested rtl_tcp on your Raspberry Pi, Mac, or other server. Note that this app requires a very high bandwidth network connection in order to receive streams of real-time RF samples from an RTL-SDR. It is recommended that your rtl_tcp server be on a wired connection rather than on the same WiFi as your iOS device.
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rtl_tcp SDR FAQ
Is rtl_tcp SDR free?
rtl_tcp SDR is not free (it costs 9.99), however it doesn't contain in-app purchases or subscriptions.
Is rtl_tcp SDR legit?
🤔 The rtl_tcp SDR app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.
Diese Software ist in vielen Bereichen nicht schlecht und macht auch was sie zumindest großteils sollte.
Leider aber, hat diese Version einige Bugs, welche lästig sind und unbedingt ausgebessert gehören.
Fakt: Der Squelch geht nicht immer und schaltet voll auf Stumm, was auch bei einem Wert von 1 selbst Signale mit 9+ blockiert.
Auch der Empfang knackst enorm dahin, obwohl mit anderen Programmen das nicht ist. Also kein Serverfehler oder schlechter Tuner.
Für diesen Preis sollte der Standard schon passen. Günstigere oder Freeware können das besser.
Preis zu hoch, aber es funktioniert.
Die App funktioniert gut. Hoffentlich kommen noch neue funktionen mit den updates hinzu.
Oops
Downloaded then deleted once I saw the setup requirements. Refund possible?
Thanks,
Eric KC1OAV
Works
Works, interface is terrible, cannot slide back without retuning half a frame, can slide forward any before retuning, fix this please!!!
Ok it looks like you did not fix the memory save process
Please fix the memory save process. Also please add more memories..
Does not work
I understand how to set up and operate these programs. Though, this one fails. Back to my android app.
Save your money and dont buy
Bought the app and never can get it to work with my SDR server. Contacted dev for support. Tried another server software he recommended. Still wouldnt work. Tried connecting to several other online SDR servers, and none will connect with the app. Apple wont refund purchase. Save yourself the pain and dont buy.
Does not work for IOS
This app does not work on IOS without a secondary device (computer) plugged into it. Not boldly stated and doesn’t look like a refund will be issued.
Great
I combined $25 sdr, Ham It Up, Youloop antenna with a raspberry pi and how I have a internet accessible shortwave radio.
As a last resort, it works.
I was very apprehensive about buying this, based off the screenshots and the fact that it’s one of the only rtlsdr apps available. $10 is way too much for this. Maybe $2 would be ok but this is sub par. Sometimes it doesn’t connect, or will just decide to drop off and stop all audio and demodulation randomly. The waterfall is glitchy and doesn’t scroll. The interface is very bad. You can’t change modes without stopping the connection and changing it, then starting again, hoping that it will reconnect. You also cannot change the bandwidth of the current frequency. The ui is also glitched on the iPhone 8, the orange text that shows the status is down in the corner and only shows the first letter. As an only option I guess it works, but it really needs big improvements to be worth the $10.
