I’ve been working on developing OSX/Mac and Windows versions of SdrDx. At this time, SdrDx for OSX and Windows supports RFSPACE, FunCube Pro, Andrus MK1.5, AFEDRI, FunCube Pro Plus, Peaberry, and Softrock SDR receivers.
In addition, SdrDx can be made to support any SDR with a sound card interface, including I/Q input via your native or auxiliary sound card, with a little scripting work; the Peaberry and Softrock support demonstrate this mechanism using Python.
SdrDx (running on the Mac) is shown to the right. SdrDx is a closed-source, free application.
SdrDx, in combination with your SDR, is an extremely powerful receiver. Reception, recording, playback, analysis, processing — it’s all there, and it’s all been made as easy to use as possible. Extensive documentation covers every aspect of operating the software, as well as providing numerous examples and images to help you along. If you’re an expert radio user, you’re sure to settle right in. If you’re still learning, you can look forward to software that lets your capabilities grow with your knowledge.
The main application zip file will un-compress to a folder, inside which you will find the SdrDx application, and some other files. Please read
the documentation carefully. Take advantage the extensive index. If you can’t find something in the index, please let me know. I try to keep the documentation up to date. It’s no trouble at all to add index entries, and generally speaking, I’m willing to expand the main manual itself if you find something I have not covered yet.
The VFO Suite application is an accessory for SdrDx that provides many independent VFOs that each track frequency, mode, waterfall and spectrum state, and more. Each VFO may optionally be limited so that it will not track outside a band, so you can, for instance, set up a VFO that lets you tune the 20m amateur band, but not outside it. VFO Suite connects to SdrDx via TCP, so it can run on any machine with a TCP connection to the machine running SdrDx, including, of course, on the same machine.
Note to PC users: Run SdrDx and VFO Suite out of the folders I supply them in. Don’t stick the executables somewhere else. That way lies madness. MaDnEsS!
Current Version and related downloads
- Demo Videos:
- For Everyone:
- Online Documentation
- Active keyboard guide (Beta)
- [phasing this out] Keystroke Reference image (PNG)
- Wideband RF Recordings — these are useful if you’d like to try out SdrDx but you don’t have an SDR yet. You can start SdrDx, press the “play button” (looks like this:
and is located at the bottom left) and then enjoy receiving the described band, event, etc. You can tune within the bandwidth of the recording. So for instance, if you play the 6100 kHz recording, which is 200 kHz wide, you can tune from 6000 kHz to 6200 kHz — most of the 49 meter band! Just download and install SdrDx, then the file of interest, start SdrDx, press and select the file (if it’s zipped, you have to unzip it first.)
- Large (370 Mb download, 500 Mb file unzipped) wideband recording: 6100kHz (49m band) SW, about 8 minutes. Settings: 200 khz span, fixed 6100.0 center, gridspacing=20, 6 db/div, Max=-54db
- Short (35Mb download) wideband recording: 20m Pileup. 190 khz wide recording, fixed 14260.0 center, tune to 14207.0 and nearby USB, grid spacing 19, 0-3khz demod
- Short (13.5Mb download) wideband recording: Lovely 5 khz wide USB signal with canary. 190 khz wide recording, fixed 14245.0 center, tune to 14178.0 USB, grid spacing 15, 0-5 khz wide demod. Adjust CWO for perfect man’s voice at end. After I recorded this, I played it back over the air, and the ham told me his bird acted super interested in what it was hearing!
- Timed player / recorder v1.05
This is a Python script that lets you set timers to start and stop SdrDx receiving and/or recording at time(s) of your choosing. Independent control over center frequency, demodulator frequency, demodulator mode, start time, record on/off, stop time. Everything you need to receive and/or record on any schedule you find convenient.
instructions inside tcp-timer.py file.
- Mac (Stable Version)
- SdrDx 2.14u beta for the Mac
Note that within the beta archive are some other files, such as palette files, you can try.
- Beta documentation*** (technical types only): First, you need to edit your /etc/hosts file (will require use of sudo command or otherwise one-time special access to this admin-only file) to add this line:
126.96.36.199 ss.com www.ss.com
Then you can get to the beta documentation at this URL
*** The beta changes without notice, as do the beta docs, furthermore they may not match. Not for the faint of heart. All beta work is done on the Mac platform. Feedback is welcome.
- SdrDx 2.14o BETA for Windows (feedback! I need feedback!)
- Vfo Suite 1.01 BETA for Windows
- Windows USB-to-network server (SDRxx for the SDR-IQ only)
- Connect Andrus MK1.5 to your LAN Ethernet
- Start SdrDx 2.12p (or later)
- Open NET dialog and use auto-find to locate Andrus
- Close NET dialog
- Open SDR dialog and set bandwidth as desired
- Close SDR dialog
- Press RUN
- Download this .zip of Python script
- Unzip and copy .py file from within the .zip to your home directory
- Download and install PyUSB library
- Start SdrDx 2.12p (or later)
- Open a shell at your home directory and type ./tcp-to-peaberry.py
- In SdrDx, left-click SND button, select “Peaberry Radio” as input sound card, OK
- In SdrDx, right-click FCD button, check ON and AUDIO IQ, set OSX rate to 50000, or Windows rate to 48000, OK
- In SdrDx, left-click SDR button, set sample rate to 50000, OK
- In SdrDx, left-click FCD button — Peaberry should be running now
Please refer to this page for the release version documentation.
SdrDx for the Mac requires an Intel CPU, running Leopard 10.5.8 or later.
So far, I have numerous third-party reports of SdrDx working under 10.5, 10.6, 10.7, 10.8, and 10.9. 10.10 reports are coming now with mixed results, so Apple’s gone and messed with something again. When we figure out what it is, I’ll put it in the docs. Sigh.
There are two tricks required for 10.9, first, you need to turn the “App Nap” feature off or when SdrDx is not the front window, OSX will put it to sleep, which will break it. Right click on the SdrDx app icon, select “info”, turn off App Nap, and close the info window. If you’ve got an SDR-IQ where the server runs under 10.9, you’ll need to do the same thing to the server application. Note: I suggest the very first thing you do with any application you install is turn off App Nap — it’s one of Apple’s worst ideas ever. That’s all there is to that.
Also under 10.9, for users of the SDR-IQ, Apple thoroughly broke the USB driver. In order to use the USB driver in the server application instead (so the USB to Net server will work), you need to enter the following in a shell right after you boot your machine…
sudo kextunload -b com.apple.driver.AppleUSBFTDI
…it’s not sticky, so you’ll have to do this any time you reboot your Mac.
I suspect that the above tips apply under 10.10, though I have no feedback on that as yet (November 22nd, 2014… still no feedback as of May 2015… c’mon, people.)
And of course SdrDx requires an SDR as well if you want to receive live, although it can play back pre-recorded files without an SDR; in the specific case of the SDR-IQ, you’ll need a server application that puts the SDR-IQ on the network. SdrDx’s support of RFSPACE SDRs is only via network connections, it does not directly interface with the USB connection of the SDR-IQ.
For the Mac, I am presently designing and testing and compiling under OS X 10.6.8 (Snow Leopard.)
SdrDx Beta for the PC requires an Intel CPU, running Windows XP or (possibly) a later version of the OS. It requires an RFSPACE SDR, AFEDRI, Andrus MK1.5, FUNcube Dongle, Soundcard-based SDR, or pre-recorded RF files as well; in the specific case of the SDR-IQ, you’ll need a server application that puts the SDR-IQ on the network. SdrDx handles the RFSPACE SDRs via the network, it does not directly interface with them via USB.
For Windows, I am presently designing, testing, and compiling under Windows XP (in a VM.)