User's Manual
Table Of Contents
- Table of Contents
- Introduction
- The Hardware
- Installation
- Getting Started
- Inside the Excelsior
- Resizing the Application Window
- Drop-Down Menu Controls
- Tuning the Excelsior
- Receiver Selection
- Mode Selection
- Function Tabs
- Spectrum Scopes
- Recording Functions
- Attenuator
- Preamplifier
- S-meter
- Top Menu Bar
- File
- Options
- Auto-mute RX not in focus
- Enable second RX
- Filter Length
- Front Panel LED
- Display Offset
- Time
- Keyboard Shortcuts
- VSC Set-up
- Audio Buffering
- AMS Capture Range
- Audio Output
- Show Measurements
- Show Data Rates
- Of particular interest to many users will be the CPU load (excessive CPU load may cause sluggish behaviour or freezing of the computer), and Audio latency. Apart from DDC bandwidth, CPU load may be minimized by reducing the Demodulator filter length (...
- Note: When measuring sensitivity using SINAD, it is very important that the Audio Filter is enabled and the cut-off frequencies (and for FM measurements, also the de-emphasis) are set according to the specified test conditions. Proper audio filtering ...
- Show Waterfall Timestamps
- Calibration
- Hand-Off Receiver
- Color scheme
- Restore factory defaults
- Memory
- Scheduler
- Scanner
- Logger
- Plugins
- Power Switch
- Date and Time Display
- Appendix A – SDR and DDC Primer
- Appendix B – Troubleshooting
- Appendix C – USB Interface Diagnostics
- Appendix D – Dealing with Interference
- Appendix E – G39DDCi PCIe Card Connections
- Appendix F – Waterfall Spectrum Palettes
- Appendix G – Recording File Formats
- Appendix H – Compliance Declarations
- Appendix I – Safety Disposal
WiNRADiO G39DDC User’s Guide
101
Hand-Off Receiver
The Excelsior receiver software includes a useful function which allows users
to utilize a WiNRADiO G315 receiver (either the external WR-G315e or the
internal WR-G315i model) as a hand-off or recording receiver. The
WiNRADiO G315 receiver is a high-performance software-defined narrow-
band receiver with superior quality crystal filters, low phase noise, and a
significant reserve in sensitivity, and so able to provide a better signal-to-noise
ratio than the Excelsior on very weak signals.
When the G315 receiver is connected, selecting the Hand off receiver option
under the Options top menu bar allows the Excelsior to pass the tuned
frequency, mode and bandwidth information directly to the G315 receiver. For
the G315 receiver to become available to the Excelsior, it must be fully
connected, and the G315 application software running.
This feature may be useful if a frequency of interest is found and you wish to
record or monitor it, and then tune the Excelsior to a frequency outside the
currently tuned IF bandwidth.
Audio from the G315 receiver will normally be presented to the stereo mixer
system, although with the WR-G315i model (internal PCI-card version), it may
be more convenient to use a separate speaker connected directly to the audio
output available on the PCI card.
Color scheme
The entire color scheme of the Excelsior can be changed. If the dark blue of
the default “skin” does not suit, there are more to choose from to suit the
user’s personal preference.
Restore factory defaults
If you get lost by too much experimenting, help is always at hand: The
Restore factory defaults function resets all the variables to the factory default
values.