Radar VOACAP Files
Provides the user with additional link information Report Elements. These are report elements that pertain to the sky-wave propagation path direction rather than the straight-line path direction. The report elements associated from the transmit antenna through the propagation channel and to the receive antenna should be utilized in typical OTH HF link budgFets reporting (e.g. transmit angles/gains, propagation loss/ranges, receive angles/gains).NOTE: When using the VOACAP model, there are several Link Information Data Provider report elements which are of little importantance. These include Xmtr Azimuth, Xmtr Elevation, Xmtr Gain, Free Space Loss, Rcvr Azimuth, Rcvr Elevation, Rcvr Gain, Range. These are considered "Straight-line path" report elements and are of little use for over the horizon (OTH) analysis.
Rather than using these "straight-line path" report elements in your reports, you can consider using the "Skywave path" versions, which are located below. They are called Transmit Azimuth, Transmit Elevation, Transmit Gain, Skywave Free Space Loss, Receive Azimuth, Receive Elevation, Receive Gain, Skywave Range.
The Link Information Data Provider's report element called Free Space Loss is reported as zero because the Skywave Free Space Loss is included in the calculation of total propagation loss as reported by the PropLoss report element.
Available for these objects: Access
Type: Fixed data.
Availability: Reports
Pre-data required: Time '<DateTimeValue>' SaveFilesToScenario {true | false}. '<DateTimeValue>' is either in Object Model Date Units (when using Object Model) or Scenario Date units, and is enclosed in single quotes.
Data Provider Elements
| Name | Dimension | Type | Description |
|---|---|---|---|
| Forward Link Input File | Unitless | Text | The transmitter-to-target effective set of circuit input parameters and values in the VOACAP input file format for the moment in time specified by the user in the Pre-Data Dialog. |
| Forward Link Output File | Unitless | Text | The transmitter-to-target effective VOACAP output file of results for the moment in time specified by the user in the Pre-Data Dialog. |
| Forward Link Transmit Antenna File | Unitless | Text | The effective transmit antenna gain slice for the circuit in the VOACAP antenna type 11 file format. |
| Forward Link Receive Antenna File | Unitless | Text | The effective target RCS for the circuit in the VOACAP antenna type 11 file format. |
| Return Link Input File | Unitless | Text | The target-to-receive effective set of circuit input parameters and values in the VOACAP input file format for the moment in time specified by the user in the Pre-Data Dialog. |
| Return Link Output File | Unitless | Text | The target-to-receive effective VOACAP output file of results for the moment in time specified by the user in the Pre-Data Dialog. |
| Return Link Transmit Antenna File | Unitless | Text | The effective target RCS slice for the circuit in the VOACAP antenna type 11 file format. |
| Return Link Receive Antenna File | Unitless | Text | The effective receive antenna gain slice for the circuit in the VOACAP antenna type 11 file format. |