New RTL-SDR receiver app for iOS released

A new RTL-SDR compatible app for Apple iOS (iPhone, iPad) has recently been released on the Apple App store. The app is called "SDR Receiver", costs US$9.99, and is used together with an RTL-SDR (or Airspy HF+) server running on a separate networked device such as a Raspberry Pi or PC. Limitations by Apple mean that the RTL-SDR can not run directly on iOS  devices.

More at :

https://www.rtl-sdr.com/new-rtl-sdr-receiver-app-for-ios-released/

New RTL-SDR Blog dongle - HF via direct sampling, software switchable bias tee

New RTL-SDR Blog dongles with HF via direct sampling are now available for order, here is the short version of the biggest changes :

1) HF support via direct sampling. Connect an HF antenna directly to the SMA connector and tune from 500 kHz – 24 MHz with the direct sampling mod. (No hardware modding or soldering required)

2) Lower internal noise. Less spurs, lower noise floor etc.

3) Software switchable bias tee. No need to do any soldering to enable the bias tee. Can be turned on and off in software.

Order online at :  rtl-sdr.com/store

Further details at : http://www.rtl-sdr.com/new-rtl-sdr-blog-units-now-available-in-store-hf-via-direct-sampling-software-switchable-bias-tee-less-noisespurs/

REVIEW : AIRSPY VS. SDRPLAY RSP VS. HACKRF

When people consider upgrading from the RTL-SDR, there are three mid priced software defined radios that come to most peoples minds: The Airspy, the SDRplay RSP and the HackRF.  These three are all in the price range of $150 to $300 USD. 

RTL-SDR.COM reviews three most popular SDR's and compare them against each other on various tests.

Read the review here :

http://www.rtl-sdr.com/review-airspy-vs-sdrplay-rsp-vs-hackrf/

Shortwave Radio Reception with the RTL-SDR Dongle

Interesting story from KF7LZE's Blog....

http://blog.kf7lze.net/2012/08/06/shortwave-radio-reception-with-the-rtl-sdr-dongle/