PSK Speed Analyzer

 

Availability

SkySweeper STD : NO
SkySweeper STD+ : NO
SkySweeper PRO : YES

 

General description

PSK Speed Analyzer (PSA) is a tool for the PSK/QPSK baud rate analyzing. It provides a decoder part similar to the other SkySweeper PSK based decoders. Also, there is the baud rate histogram display as well as the text window for printing out the analysis results in text format.

 

The PSA decoder searches the transmission within the given frequency boundaries. Also you can set the PSK frequency by double clicking mouse on the required frequency position.

When a transmission has been detected within the given range, the decoder will then lock itself to that frequency. When locked, the decoder draws a bold blue line on the spectrum display at the currently locked frequency. If the decoder is not locked, then the blue line is not shown as bold.

 

In the non-locked state, the carrier frequencies are automatically monitored within the given frequency boundaries. If the carrier frequency changes, then the decoder moves to a new frequency. If 'Lock' is pressed in the user interface, then the decoder will not automatically change the frequency. ‘Reset’ resets the decoder and the results can be saved using ‘Save’. The parameters can be modified pressing the ‘Config’ button.

The text can be saved with ‘Save’.

 

SkySweeper supports both FFT and waterfall display modes for decoder tuning. The Decoder Spectrum Dialog chapter gives more information about spectrum display options.

 

Configuration

Pressing the ‘Config’ button opens the following Configuration dialog box.

 

 

Parameters

 

Tone Scan Area

The PSK transmission is searched for only inside this frequency window

 

Mode

This selects the scale which is used to present the analyzed results. There are two choices for the scale (Baud Rate or Symbol Length (ms)).

Line Colors

The sets the histogram line color.

 

Print statistics into text window

If this switch is selected, the analyzed results (bit lengths/baud rates) will be printed into the text window.

Time Stamp

If this switch is selected, the time stamp is added to the text. This works only if ‘Print statistics into text window’ is selected.

 

Filter Width

This is the PSA internal filter width. This should be adjusted according the transmission bandwidth provide optimal analysis results.