HackRF One

Product Information

THAT’S WHY I WENT TO RED PITAYA AND I’M NEVER LEAVING. At least THEY are developing apps –– and REALLY GOOD ONES AT THAT –– to support the Red Pitaya for a FULL UP HF TRANSCEIVER. My plan is to produce an upconverter for Red Pitaya that will allow it to transmit U/VHF, too, longer term. I think that the lab testing is the only test that can give us the real figures and performance. Sensitivity is only one test, so there are other tests that should be performed, selectivity, linearity, SFDR, two tones, multi tones, LO PN etc. Upon the mentioned measurements one can get a clear picture of how any receiver will perform in a desired environment.

As the author of the post excuse himself in the diclaimer note, I will try to keep my comment short. Othervise this will be a long comment, even longer than the author post 🙂 There is also the option to toggle on or off the internal Mirics chip LNA. This is the LNA in the tuner chip, and not the front end LNA which is always on for VHF+ frequencies. Turning this LNA on can help to reduce the noise floor, but also may cause additional imaging problems. Noise/Interference - Good SDRs should not receive anything without an antenna attached. If they receive signals without an antenna, then interfering signals may be entering directly through the circuit board, making it impossible to filter them out. Good SDRs will also cope well with things like USB interference.Despite the distortion, seeing the planet’s surface via the microwaves emitted by water vapor is still pretty cool. If more traditional weather satellite images are what you’re looking for, those are pretty cool too. The SDRplay RSP can achieve a similar effect by reducing the bandwidth displayed, however this means that a lower sample rate is used, and thus less decimation occurs. I have 40+ years experience as a ham, SWL, scanner enthusiast, satellite enthusiast so I know what I am talking about. The way the tests were performed in the article may be handy but far away from the precise because the readers are looking for the fraction of the dB. Such accuracy is difficult to get even in the lab sometimes not to mention problems using the external signals through the antenna where influence of the external factor may be significant and selective. Let say weak signal test where the QSB is present and even multiple reflections on the higher frequencies. Compatible with SDR#, HDSDR and SDR-Console through plugins. Though compatibility with SDR# is restricted as third party plugins cannot be used. The RSP is also compatible with any app supporting ExtIO. For example:

Alias Free Bandwidth - The bandwidth on SDR displays tends to roll off at the edges, and also display aliased or images of other signals. The alias free bandwidth is the actual usable bandwidth and is usually smaller than the advertised bandwidth. HotMobile'17: proceedings of the 18th International Workshop on Mobile Computing Systems and Applications: February 21-22, 2017, Sonoma, CA, USA. ACM SIGMOBILE, Association for Computing Machinery. New York, New York. 21 February 2017. ISBN 9781450349079. OCLC 981765641. {{ cite book}}: CS1 maint: location missing publisher ( link) CS1 maint: others ( link)

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First, I’m really impressed by the excellent simplification job done by Team RTL-SDR.com. Anyone with a basic setup can reproduce these tests and form his own opinion. The entire article is fluent and a is real reading pleasure. Connect your Android phone to your computer and launch the Dr.Fone app. Next, tap on "Virtual Location" and press "Get Started" on the next screen to initiate the process. Now, find your location on the map by pressing the "Center On" icon.

No requirements are given, but we estimate that minimum specs are significantly lower than what is needed by the Airspy. Also has unofficially developed ExtIO interface allowing it to work with any app supporting ExtIO. For example:Next we will introduce each device and its advertised specifications and features: Device Introduction and Advertised Specifications & Features