In this case I am tuned to If you look at the lower right corner, you see the scope display of the demodulated FM audio. There are markers for the portions of interest: You can see the main audio above the green marker to the left.
The stereo pilot at 19 kHz red marker. Do you find that to be the case too?
Should I use additional drivers, or else? Macbook Pro with El Capitan Stephen Glasskeys is a blogger and blog watcher, writer and developer.
More good reads. OS X El Capitan review: Mac upgrade that's as solid as a rock.
How to breathe life into an old Mac. Get your Mac ready for OS X Software Defined Radio Software Defined Radio SDR is "a radio communication system where components that have been typically implemented in hardware are instead implemented by means of software on a personal computer or embedded system. However for initial test purposes the little whip aerial supplied in some RTL SDR kits should be sufficient to get you started.
If you want more, then I recommend that you seek advice from a specialist ham radio supplier, and purchase a wideband compact antenna which you can mount high outdoors. One significant consideration with most RTL SDR kits is that the antenna ports on them are usually very miniature SMA F , and you will need an adaptor to connect any other antenna to them; this can be solved by a specialist ham radio store, or careful browsing in your local Maplin, etc. RTL radios are tiny, cheap, and really simple, but perform surprisingly well.
They are also incredibly versatile. Although some cover a smaller range of frequencies, most should be reasonably sensitive from VLF of around kHz right up to microwave of around 1. Conventional communications receivers with similar capabilities are far more expensive and bulky.
The groundwork was then continued by Antti Palosaari and Osmocom in , since when many systems have been put to use as proper SDR. Different tuner chips offer slightly different frequency ranges, but each accepts similar commands and thus can be controlled similarly. But in reality you do not need a wide choice, just one or two good products, which are available for OS X. The snag with most of these apps for any platform is that they do not come as simple binary installers: But as Xcode is free from the App Store , and the apps are free, this is actually a good deal.
My own experience with trying to get this installed differs from most. Despite following the instructions to the letter, it failed to compile and install here using the current MacPorts, which reported inscrutable errors.
This is one of the problems with system such as MacPorts: Maybe on another day it would have worked fine. Gqrx is overall a huge package, as MacPorts decides that you need all sorts of dependent products, and here it was happy to consume around 8 GB of disk space by the time it decided it could not build: However even that did not quite work as advertised.
From within Xcode you will then need to agree to the licence agreement, and download and install the command line tools. If you think you may have done the latter already, check that you have, as without them the rest will fail miserably.
Then take a trip to MacPorts , from which you should download and install the standard installer for your version of OS X.