rtl_tcp SDR Hack 1.4.8 + Redeem Codes
RTL-SDR Software Defined Radio
Developer: HotPaw Productions
Category: Utilities
Price: $9.99 (Download for free)
Version: 1.4.8
ID: com.hotpaw.sdr4rtltcp2
Screenshots
Description
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 directly to a networked Hermes Lite 2 QRP SDR transceiver, no server required.
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.
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 directly to a networked Hermes Lite 2 QRP SDR transceiver, no server required.
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.
Version history
1.4.8
2023-05-11
Bug fixes and performance enhancements
1.4.7
2023-01-06
Bug fix for compatibility with the latest hl2_tcp server for Hermes Lite 2 SDRs, plus other bug fixes and stability enhancements.
1.4.6
2022-10-28
Bug fixes and stability improvements
Improved S-meter calibration
Improved S-meter calibration
1.4.5
2022-02-24
- Added 2.5 Msps RTL-SDR sample rate support
- Improved Voiceover support
- Improved Hermes Lite 2 CW and SSB modulation
- Changed generated Share setting URLs
- Added an audio route picker option
- Fixed an S-meter positioning bug
- Other bug fixes and reliability and OS compatibility improvements
- Improved Voiceover support
- Improved Hermes Lite 2 CW and SSB modulation
- Changed generated Share setting URLs
- Added an audio route picker option
- Fixed an S-meter positioning bug
- Other bug fixes and reliability and OS compatibility improvements
1.4.3
2021-11-07
This release contains a few minor bug fixes
1.4.2
2021-07-11
Bug fixes and performance enhancements.
1.4.1
2021-05-30
- Added a VFO A/B switch
- New larger S-Meter on iPads
- Improved frequency markings on the spectrum display
- Minor improvements to the audio filtering
- Several small bug fixes
- New larger S-Meter on iPads
- Improved frequency markings on the spectrum display
- Minor improvements to the audio filtering
- Several small bug fixes
1.3.9
2021-02-14
Minor bug fixes for tuning while zoomed in.
1.3.7
2020-10-05
Bug fixes and improved support for new OS releases.
Bug fixes for audio filters and spectrum display.
Added support for the Hermes Lite 2 SDR.
Bug fixes for audio filters and spectrum display.
Added support for the Hermes Lite 2 SDR.
1.3.6
2020-06-15
Bug fix for squelch function. Previous version included bug fixes for audio filtering.
1.3.5
2020-06-14
Bug fixes and performance enhancements.
1.3.4
2020-04-04
A few minor bug fixes and performance enhancements
1.3.2
2019-12-21
- Bug fixes and improvements to audio and CW filters
- Added support for lower Airspy HF+ and HF+ Discovery sample rates
- Added support for lower Airspy HF+ and HF+ Discovery sample rates
1.2.7
2019-10-01
Bug fix for a problem tuning via swipe gestures
1.2.6
2019-09-24
Minor bug fixes and improved support for iOS 13
1.2.5
2019-08-23
- Bug fix for a problem setting higher RTL-SDR sample rates
- Updated support for HF+ Discovery sample rates
- Updated support for HF+ Discovery sample rates
1.2.4
2019-08-09
- Bug fixes
- UI fixes for iPhone SE sized displays
- Updated support for hfp_tcp & new HF+ sample rates
- Added an unZoom button
- UI fixes for iPhone SE sized displays
- Updated support for hfp_tcp & new HF+ sample rates
- Added an unZoom button
1.2.3
2019-07-30
- Bug fix for CW filter enable/disable.
- Improvements to both SSB and CW filters.
- Improvements to both SSB and CW filters.
1.2.2
2019-05-16
Improvements to spectrum zoom.
Bug fixes for frequency and audio level settings.
Reliability enhancements.
Bug fixes for frequency and audio level settings.
Reliability enhancements.
1.2.1
2019-04-19
Added a Dark Mode option (configure in the Options view)
Added a URL scheme to control tuning and server selection (can be used with Shortcuts)
Updated for iOS 12 Network framework and Swift 5
Bug fix for AM squelch and CW filter gain
Bug fix for spectrum pinch-and-zoom gestures
Bug fixes for frequency and sample rate selection issues
Many other performance and reliability improvements
Added a URL scheme to control tuning and server selection (can be used with Shortcuts)
Updated for iOS 12 Network framework and Swift 5
Bug fix for AM squelch and CW filter gain
Bug fix for spectrum pinch-and-zoom gestures
Bug fixes for frequency and sample rate selection issues
Many other performance and reliability improvements
1.0.7
2019-03-13
- Improved complex-modulated SSB and CW filters
- Added an SSB and CW audio bandwidth indicator
- Added fine tuning buttons (tap on spectrograph to enable/hide)
- Added support for SDRPlay rsp_tcp 16-bit mode
- Fixed an HF+ sample rate bug
- Preselects now save squelch setting
- Fixed bug in spectrum and waterfall zoomed-in views
- Fixed a bug with selecting a tuning offset
- Fixed a bug with setting a PPM correction factor
Thanks for the feedback. Please send more.
- Added an SSB and CW audio bandwidth indicator
- Added fine tuning buttons (tap on spectrograph to enable/hide)
- Added support for SDRPlay rsp_tcp 16-bit mode
- Fixed an HF+ sample rate bug
- Preselects now save squelch setting
- Fixed bug in spectrum and waterfall zoomed-in views
- Fixed a bug with selecting a tuning offset
- Fixed a bug with setting a PPM correction factor
Thanks for the feedback. Please send more.
1.0.6
2018-06-04
Bug fix for entering localized frequency values in MHz.
Bug fix for configuring an RF up-converter offset.
Minor improvements to SSB (LSB and USB) demodulation.
Bug fix for configuring an RF up-converter offset.
Minor improvements to SSB (LSB and USB) demodulation.
1.0.5
2018-04-28
Ways to hack rtl_tcp SDR
- Redeem codes (Get the Redeem codes)
Download hacked APK
Download rtl_tcp SDR MOD APK
Request a Hack
Ratings
3.9 out of 5
25 Ratings
Reviews
GweepDad,
This app is long overdue; Basic features but a good effort. Thanks!
Looking forward to using this app as it matures. It worked right away with my Raspberry Pi RTL server. It even works OK over my VPN.
Features that it definitely needs in future updates:
1) The upconverter frequency needs to allow a more exact calibration down to 1 Hz.
2) Same for the PPM value. At least 3 decimal points are needed for accuracy.
3) A slider would be helpful for fine tuning SSB and CW signals. Say +/-1000 Hz. Maybe along a vertical edge.
Nice effort, well done. Keep up the good work. Much appreciated!
Features that it definitely needs in future updates:
1) The upconverter frequency needs to allow a more exact calibration down to 1 Hz.
2) Same for the PPM value. At least 3 decimal points are needed for accuracy.
3) A slider would be helpful for fine tuning SSB and CW signals. Say +/-1000 Hz. Maybe along a vertical edge.
Nice effort, well done. Keep up the good work. Much appreciated!
KM4OVZ,
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.
Davidsaintruby,
Best I have found to date
I know Apple makes it harder to do true hardware. I use SDR sharp and sdr console on pc. This is pretty close on iOS. A little temperamental at times with settings and network server config. But best out there on iOS I have found. Wish it had native air spyserver.
Jammin297,
Ok it looks like you did not fix the memory save process
Please fix the memory save process. Also please add more memories..
Lineman82,
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.
Flintstone, Fred,
Works great
The BIG variable is network bandwidth. But at the lowest sampling rate it works good. Using a Raspberry Pi 3+ server.
Up/Down tuning buttons would be nice with it changing the selected frequency digit for slow or fast tuning.
Up/Down tuning buttons would be nice with it changing the selected frequency digit for slow or fast tuning.
KD0,
Could use some polish...
This is the ONLY (iOS) RTL-SDR application in town. It’s get the job down, albeit crashes occasionally and could use some polish. I’d like to be about to pinch bandwidth. Needs a LOT of work. I sincerely hope they continue developing. Could be a great app. Not worth $10, I hate to say..
Xyzzy1026,
Great
I combined $25 sdr, Ham It Up, Youloop antenna with a raspberry pi and how I have a internet accessible shortwave radio.
The Coalson's,
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.
sendmans,
It is works but lack several functions
- bookmark of frequencies is too small (only allow to save 5 freq)
- real-time saving
- auto scanning
- real-time saving
- auto scanning
