SdrDx Documentation -- Feature List (page 4)

Beta Address: http://blish.org/sdrdxdoc/featlist.html

1.6 - Feature List

Hardware SDR Support

AirSpy HF+: 768 KHz bandwidth, full freq range (OS X only, obtain USB-to-Network server here.)

AFEDRI SDR: to 1.25 MHz bandwidth, full freq range

AFEDRI 822 SDR: (AFE822) to 1.25 MHz bandwidth, full freq range, 1 and 2-channel operation

AFEDRIx SDR: (AFE822x) to 1.25 MHz bandwidth, full freq range to 1.5 GHz

Andrus MK 1.5 SDR support (Ethernet, single channel only)
FUNcube Dongle Pro SDR support: (full^(f/n:1)) VHF...UHF
FUNcube Dongle Pro Plus SDR support: (full^(f/n:2)) LF...MF...HF...VHF...UHF
IF-based radio monitoring; SdrDx supports an IF or converter offset you can use to translate IF tuning frequencies to the frequencies in use. You can update SdrDx's tuning information using its TCP interface.
Peaberry SDRs are supported by allowing selection of any sound source in the computer, and enabling remote control of the SDR (if it has such) via TCP reception of broadcast of tuning information from SdrDx by an SDR-specific application that tunes that SDR. Tuning support is implemented via Python and TCP.
RFSPACE SDR-IQ (full)
RFSPACE SDR-IP (full)
RFSPACE SDR-14 (full)
RFSPACE NET-SDR (partial^(f/n:3)): LF...HF
RTL "stick" SDRs are supported under OS X only via this network server application, which is GPL'd
Softrock (and other "soundcard-based" SDRs) are supported by allowing selection of any sound source in the computer, and enabling remote control of the SDR (if it has such) via TCP reception of broadcast of tuning information from SdrDx by an SDR-specific application that tunes that SDR. Tuning support is implemented via Python and TCP.
Additional SDR support coming^(f/n:4)^(f/n:5)

RF Spectrum Display

Integral or separate window
Variable Bandwidth
Variable Scale, Base Reference Level
Peak tracking with Markers
On-Air station marking (req. DX ToolBox)
Variable Frequency Designation Intervals
Single- or dual-level designators for dense graticules
Visible noise floor reduction via DSP
Pre- or Post-noise reduction modes
Selectable Averaging
Station labeling and station database editor
Zones for Quick Memory Operation
Variable Intensity, Transparency, Color
Live Click-Tuning
Band Striping: visible broadcast and amateur bands
US, NZ and EU CB channel designators
ARO 60m and 10m channel designators
Live Demodulator Bandwidth Adjustment
Visible Notch Markers
IQ imbalance marker cue
Adjustable Spectral Resolution
Switchable (for listening-only purposes)
Calibrated dB Scale
Calibrated S-unit Scale
Controllable Click Resolution
Variable Display Rate
Span-variable Zoom
User Span / Graticule density memories
Variable Screen Percentage
Scales with Window
Adjustable Font Size

RF Waterfall Display

Integral or separate window
Two Built-in Palettes
User Palettes
Visible noise floor reduction via DSP
Sample-driven automatic adjustment of intercept and contrast
Time, Frequency, and Bandwidth Markers
Live Save of variable length Waterfall Images
Palette Intercept (controls signal-to-color start)
Palette Contrast (controls signal-to-color range)
Pre- or Post-noise reduction modes
Auto-Intercept
On-Waterfall Demodulator Guides w/optional timeout
Demodulator tracking markers
Live-tuning on After-the-Fact signals
Scales with Window
Span-variable Zoom (follows spectrum zoom)

Auxiliary Oscilloscope

Audio / S-Meter | AGC 2-channel mode

Variable Channel Gains
Dual-channel waveforms for FM Stereo
AGC Markers
Visual Notch Setting
SSP Trigger Range Display
Squelch Level Set and Display
Adjustable sweep rate
Auto and Manual triggering
Adjustable Trigger Level
Positive or Negative Slope Triggering
Smoothing
User-configurable Colors

WFM X/Y Multipath Mode
WFM L/R-X/Y Stereo/Mono Mode
RTTY, SITOR, NAVTEX X/Y Tuning Mode

Variable Shift
Variable Center Frequency
Dual-band: lo/hi
Variable gain and Q

Audio Linear Spectrum Mode

Automatic or Manual Spectrum Width
Click-to-Notch
Frequency Markers
Smoothing and Waveform Averaging
Peak Waveform Display
Dual-channel in FM Stereo

Audio Radial Spectrum Mode

Automatic or Manual Spectrum Width
Click-to-Notch
Frequency Markers
Smoothing
Dual-channel in FM Stereo

RF Carrier Analysis Mode

Variable width from 8 KHz to 8 Hz for all modes but WFM
100 KHz pure RF and 100 KHz demod output widths for WFM
Highest Peak marker incorporates dB, frequency
Peak Waveform Display
Variable center frequency based on width
Waveform Averaging

Audio Waterfall Mode with freq reference, FAX/SSTV tuning reference

Custom color palettes
Variable Intensity (color magnitude)
Variable Bias (color shift)
Auto or manual spectrum width
Switchable 500 Hz calibrations, SSTV/FAX calibrations
Click-to-Notch

3-Dimensional Audio Spectrum Mode

Auto or manual spectrum width
Click-to-Notch
Variable Gain

Raw RF and RF Trapezoid Mode

Continuously Variable sweep rate

Adjusting Window Adds Precision with Size

Signal Processing

DSP Demodulators - razor sharp, zero adjacent channel overlap
DSP Audio Notch Filters (10 of them)
DSP RF Notch Filters (10 of them)
DSP Log/Linear AGC from 1 ms to 10 seconds, with "radio-like" RF gain
DSP Time/Frequency-Division Multiplex Filter
DSP Multi-octave 60 Hz Filter
DSP Multi-octave 50 Hz Filter
DSP Impulse Noise Blanker (threshold, width)
DSP Processing for Waterfall Noise Level
DSP Processing within Spectrum Noise Floor
DSP Bandpass Edge Ringing Reduction
DSP Low-pass Filter
DSP High-pass Filter
DSP Dynamic Noise Reduction
DSP Level Squelch
DSP Noise Squelch
DSP I/Q re-balance
DSP I/Q Phase and/or amplitude adjustment

Extraordinary Tuning Capabilities

Keyboard: Band, 1 Hz to 10 kHz and by Display Width
Direct Entry, including specifying demod mode and center offset
14 user-definable, band-specialized, band-stacking VFOs
- From one to eight bandstacks per VFO
- From two to sixteen time-triaged FIFO memories per bandstack
- User-definable frequency bounds
- Copy, paste, swap VFOs among themselves
- Choose none, any, or all from many settings to track in each VFO
- Select if a VFO's bandstacks track options independently, or together
- Load and save all 14 VFOs / 112 bandstacks as named, retrievable VFO sets
GUI: Broadcast Band, Amateur Band, 10 Hz to 10 kHz & by Display Width
Tune via TCP commands locally or over Ethernet
Tune via MIDI control surfaces
Tune via Griffin Powermate
Memory:

Manual selection of up to 25 user memories
"Hot" tooltips display memory contents
10 Preset Band Edges
10 Preset Time Stations
Automatic Scanning
Memories save squelch, offset, frequency, mode, notches, filters, more
Set by Intervals across Bandwidth Span
Peak or Average signal detection during scanning

Detailed built-in high-speed database of frequencies and bands
Multiple kinds of center-to-demodulator movement modes

RF Filesystem

Record full RF display span at once for later perusal

Records live, you can listen and record
Timed recording
Monitors current filesize
Automatically splits files as you specify up to 2 Gb
Visible Progress Bar towards your filesize limit
Records from LF to UHF, as wide as your SDR's bandwidth

Play back full RF display span

Play
Rewind
Pause
"Scrub" Bar with auto punch-in, punch-out
(Re-)Demodulate anything, any time, during playback
Playback feels exactly like live reception

Share Recordings with other users

Razor-Edged DSP Demodulation
- Seven user bandwidth memories for each demodulator mode
- Bandwidth memory spread capability
- 63 programmable instant bandwidth settings (in 9 sets of 7)
- Demodulator Modes:
  - AM, variable bandwidth, ringing control
  - SAM -- Synchronous AM, dual-variable bandwidth, ringing control
  - FM, variable bandwidth, ringing control
  - WFM
    - RBDS/RDS demodulation
    - Variable bandwidth RRF and ARF displays
    - Locked monophonic and auto-stereo reception
    - FM High-Blend noise reduction for weaker signals
    - Pink and White noise generators for High Blend calibration
    - FM X/Y display of channel separation
    - FM multipath display enables accurate antenna pointing
    - 67 KHz SCA demodulation
    - 92 KHz SCA demodulation
  - LSB, IF shift, u/l passband adjustment, LSB offset, ringing control
  - USB, IF shift, u/l passband adjustment, USB offset, ringing control
  - CWU, IF shift, u/l passband adjustment, CW offset, ringing control, carrier offset
  - CWL, IF shift, u/l passband adjustment, CW offset, ringing control, carrier offset
  - FSU, IF shift, u/l passband adjustment, FS offset, ringing control, carrier offset
    - Radioteletype demodulation & display
    - SITOR / NAVTEX demodulation & display
  - FSL, IF shift, u/l passband adjustment, FS offset, ringing control, carrier offset
    - Radioteletype demodulation & display - 170 Hz shift, 45.45 baud
    - SITOR / NAVTEX demodulation & display
Remote Control and Monitoring via TCP

Emits status information as you operate
Emits logging information cluster on local command
Large set of remote control commands
Sample status monitoring app in Python
Sample action commander app in Python
Up to 25 custom macros or commands from keyboard or GUI
3rd-Party Application support: DX ToolBox, RUMLog

Plus:

Extensive set of user-configurable keyboard commands
Customize colors
Latency adjustable for faster computers
Re-routable output audio for digital signal recovery
Digital Radio Mondial compatible^(f/n:6)
Transmit Squelch for use with TX/RX setups
Zero-on-Click
Zero-on-1-KHz
Fast Muting system
Multiple Metering Models incorporate AGC, S, dBm, Modulation
Switchable, Application-wide Tooltip System
Hardware and Software signal Overload Detection
Variable Hardware Sample Rate support
Multiple Status Displays
Built-in image capture system
- Entire Spectrum plus Waterfall
- Demodulator region, Spectrum plus Waterfall
- S-Meter
- Audio Scope Display
OS X 10.6.8 and later OS versions
Windows XP and later OS versions
Multi-threaded, Multi-core Aware
Strong Keyboard Command Support
Comprehensive Keyboard Locking Control
Direct invocation of external commands x4
Support for external tuning knobs such as Griffen Powermate
SDR Frequency Calibration in PPM
Saves and Reloads entire system state when quit and restarted
Comprehensive Online Help System
Works with Soundflower, MultiMode, fldigi, Robot SSTV hardware, etc.
GMT/Local 12/24 hour Clock
Free: no nagging, no "timeouts", no registration, no dongle, no activation code, no "paid upgrades", no "in-app purchasing", no "in-app advertising." ^(f/n:7)

Footnotes:

1: FUNcube is fully supported under OS X; Under Windows, limitations of the Qt development environment limit the FUNcube's bandwidth to 48 KHz instead of the 96 KHz it is actually capable of. There's no work-around for this until/unless the Qt people fix their busted stuff. However, everything except wide FM will work -- it's just that the display would otherwise be wider in the other modes.
2: FUNcube + is fully supported under OS X; Under Windows, limitations of the Qt development environment limit the FUNcube's bandwidth to 48 KHz instead of the 192 KHz it is actually capable of. There's no work-around for this until/unless the Qt people fix their busted stuff. However, everything works except wide FM under Windows -- it's just that the display would otherwise be wider in the other modes.
3: Waiting on RFSPACE for promised NET-SDR test unit; ETA unknown
4: SDRPlay has arrived and I plan to work with it as soon as someone writes a server for this USB-based unit.
5: Manufacturers: If you would like me to support your Ethernet-based SDR, or a USB-based SDR via your network server application(s), I need a working unit (and the server software in the case of a USB based design.) Doesn't have to be in any particular cosmetic shape, but it has to be 100% functional. Contact me via email to make arrangements. Use fyngyrz aht gmail daht com as the email address. Aht and daht are (probably futile) anti-spam measures, please translate appropriately.
6: Requires OS X Dream application or similar.
7: Purely voluntary donation supported via documentation pages

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