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
59
When the receiver is tuned to a frequency that is equal to a frequency stored
in the memory, the stored callsign will be shown in the band indicator under
the main frequency display. If there is no callsign stored with the frequency,
the content of the description field will be shown instead.
The user memory will first be searched for a matching frequency for the
currently selected group. If no matching frequency is found there, then the
whole memory structure will be searched and the first one found will be
displayed.
Saving User Memory File
You can have more than one user memory file; the number of such files is
limited only by the capacity of your hard drive. You can save a user memory
file under an arbitrary name, and then load it back, making it possible to have
different memory files for different situations. To save the current memory file,
simply select Save user memory as from the top bar File menu. A dialog box
will pop up allowing you to specify the file name.
When you exit the WiNRADiO Excelsior application, all memory changes are
automatically saved; there is no need to use the Save command before exit.
Note: The default user memory file is called Memory.r7m and resides in the
following folder: My Documents/Winradio/G39DDC.
Opening User Memory File
When the WiNRADiO Excelsior receiver application starts up, the most
recently used memory file will be opened automatically.
To open a different memory file, select Load user memory from the File
menu. A dialog box will pop up allowing you to choose a memory file to load.
Notch
The Notch tab contains controls dedicated to the Notch filter function. There
are two notch filters which can be operated simultaneously: