rtl_tcp SDR
RTL-SDR Software Defined Radio
$9.99
1.5.1for iPhone, iPad and more
7.5
26 Ratings
HotPaw Productions
Developer
2.5 MB
Size
Jan 20, 2024
Update Date
Utilities
Category
4+
Age Rating
Age Rating
rtl_tcp SDR Screenshots
About rtl_tcp SDR
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.
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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What's New in the Latest Version 1.5.1
Last updated on Jan 20, 2024
Old Versions
Improved Noise Reduction algorithm.
Multiple bug fixes plus some performance and stability enhancements.
Multiple bug fixes plus some performance and stability enhancements.
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Version History
1.5.1
Jan 20, 2024
Improved Noise Reduction algorithm.
Multiple bug fixes plus some performance and stability enhancements.
Multiple bug fixes plus some performance and stability enhancements.
1.4.8
May 11, 2023
Bug fixes and performance enhancements
1.4.7
Jan 6, 2023
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
Oct 28, 2022
Bug fixes and stability improvements
Improved S-meter calibration
Improved S-meter calibration
1.4.5
Feb 24, 2022
- 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
Nov 7, 2021
This release contains a few minor bug fixes
1.4.2
Jul 11, 2021
Bug fixes and performance enhancements.
1.4.1
May 30, 2021
- 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
Feb 14, 2021
Minor bug fixes for tuning while zoomed in.
1.3.7
Oct 5, 2020
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
Jun 15, 2020
Bug fix for squelch function. Previous version included bug fixes for audio filtering.
1.3.5
Jun 14, 2020
Bug fixes and performance enhancements.
1.3.4
Apr 4, 2020
A few minor bug fixes and performance enhancements
1.3.2
Dec 21, 2019
- 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
Oct 1, 2019
Bug fix for a problem tuning via swipe gestures
1.2.6
Sep 24, 2019
Minor bug fixes and improved support for iOS 13
1.2.5
Aug 23, 2019
- 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
Aug 9, 2019
- 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
Jul 30, 2019
- Bug fix for CW filter enable/disable.
- Improvements to both SSB and CW filters.
- Improvements to both SSB and CW filters.
1.2.2
May 16, 2019
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
Apr 19, 2019
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
Mar 13, 2019
- 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
Jun 4, 2018
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
Apr 28, 2018
rtl_tcp SDR FAQ
rtl_tcp SDR is available in regions other than the following restricted countries:
Namibia,Papua New Guinea,Brazil,Ghana,St. Kitts and Nevis,Guatemala,Libya,Pakistan,Venezuela,Gabon,Paraguay,Gambia,Lao Peoples Democratic Republic,Madagascar,Mozambique,Barbados,Congo,Qatar,Bulgaria,Bahrain,Dominica,Cambodia,Zambia,Angola,Turkmenistan,Micronesia,Kazakhstan,Moldova,Kosovo,China,Algeria,Liberia,Palau,Sierra Leone,Poland,Congo, Democratic Republic,Morocco,Swaziland,Cape Verde,Mauritania,Trinidad and Tobago,Macedonia,Mali,Maldives,Suriname,Bhutan,Tunisia,Vanuatu,Belize,Egypt,Tonga,Vietnam,Russia,Nicaragua,Anguilla,Benin,Botswana,Montenegro,Mauritius,Nauru,Oman,Chad,Zimbabwe,Guinea-bissau,Turkey,Sri Lanka,Myanmar,Niger,Afghanistan,Romania,Iraq,South Korea,Rwanda,Sao Tome & Principe,Macao,El Salvador,Mongolia,Nigeria,Antigua And Barbuda,Bolivia,Belarus,Georgia,Uganda,Uzbekistan,Azerbaijan,Malawi,Albania,Cayman Islands,Serbia,Tajikistan,Cote Divoire,Cameroon,Nepal,Senegal,Bosnia & Herzegovina,Yemen,Turks and Caicos,St. Vincent & The Grenadines,Kyrgyzstan,Guyana
rtl_tcp SDR supports English
Click here to learn how to download rtl_tcp SDR in restricted country or region.
Check the following list to see the minimum requirements of rtl_tcp SDR.
iPhone
Requires iOS 14.6 or later.
iPad
Requires iPadOS 14.6 or later.
iPod touch
Requires iOS 14.6 or later.
