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
7
The Hardware
The WiNRADiO G39DDC receiver is available in two versions: The external
USB-interfaced WR-G39DDCe model and the internal WR-G39DDCi PCI
Express card.
There are no differences in RF performance between these models; however,
with the external WR-G39DDCe model, the DDC bandwidth of the secondary
receiver is limited to 2 MHz (rather than 4 MHz), due to the limitations of the
USB interface. The internal WR-G39DDCi models also offer a greater number
of standard hardware options, such as external reference input or output, IF
output, etc. (However, some of these options, may be available also for the
WR-G39DDCe model, on a customer-specific basis.)
WR-G39DDCe External (USB) Receiver Models
The advantage of the external models is in their portability which provides
them with extra flexibility of use. The WR-G39DDCe hardware is contained in
a small metal box, encapsulated with transparent plastic.
The front of the enclosure contains a power switch and an indicator LED. The
LED also serves for diagnostic purposes and installation trouble-shooting (see
Appendix C – USB Interface Diagnostics). During normal operation, its
flashing can be disabled by a setting in the application software, should it
appear disturbing.