Specifications
Critical parameters:
Audio Input (it is possible TRX-Pan does not support all Sound Cards and/or all Audio
input settings)
Select Sample Rate (S. Rate) according to your sound card. Generally, for a standard
sound card, 44100/s (44 kHz display width). Up to 192kHz with some sound cards.
Reverse I/Q (Left/Right Channels). Reverses the displayed sidebands (same as reversing I
& Q audio cables).
CAT Control :
TRX-Manager if TRX-Manager is running on your computer and set up for any
transceiver (K3 excepted). You must Fill in Offset for each mode
TRX-Manager+K3 if TRX-Manager is running on your computer and set up for a K3 .
You must Fill in GlobalOffset if necessary (-6.0 or 0 or...)
LPBridge If TRX-Manager is not installed on your computer. LP-Bridge
allows interactivity between TRX-Pan and various transceivers. You must fill in
GlobalOffset. Please note LP-Bridge is not required for users of TRX-Manager which
features a specific Synchro mode for interactivity with other software or device.
N4LPAllows interactivity with N4LP CAT control software
SDR
LP-Pan (IF Adpter) if you use an IF Adapter (like LP-PAN) connected to the IF output of
your transceiver
SDR Fixed LO it is the case with an SDR like Softrock and a fixed LO
Other parameters:
Sound card resolution : 24bits or 16bits. While 24bits may slightly lower the noise floor,
16bits consumes fewer ressource and, in practice, gives better results (24bits is disabled
in this version).
Apodization : Also called "Windowing" in other SDR apps. Select a filter or none.
Apodization smooths the signal trace but increases apparent noise floor. Blackman
Nuttall is the more efficient with 16bits. None is preferable with 24bits.
FFT Bins (Accuracy) : Determines the Resolution Bandwidth (RBW) which is a
measure of frequency resolution of the display. 4096 (default) is usually adequate
when viewing a large bandwidth at normal screen sizes. More than 16384 bins slows down
the display on older PCs. Generally, other software (like PowerSDR) operates with 4096 or
8192 bins. TRX-Pan can be used with up to 65536 bins for excellent frequency resolution
when zoomed into narrow spans.
Smooth 0Hz spike: With high quality sound card (like EMU202), there is no visible spike at
0Hz. This setting is only required with standard sound cards displaying a prominent spike at
0Hz.
Colors and other display options (Design = preference for the display), Band/Mode SW
Always (Band/Mode Switch is always visible)
MAX/AVG Samples allows setting the number of samples for integration of MAXimal/AV
eraGe values of the signal (0 = instantaneous). 3 is usually appropriate.
QSY Detect.: If checked, this option resets integration to zero (MAX/AVG= 0) during QSY
to speed up the display.
Priority: Real time (not recommended): By default TRX-Pan uses the Windows's High
priority during capture of the data. If Real time is checked, TRX-Pan takes the priority
over all other applications during the capture. This may improve synchronization but other
applications (and sometime the system itself) may hang up a little.
High Res. Zoom : if checked, TRX-Pan automatically adjusts Sample rate to match the
current zoom level and to give the best possible resolution (please note some values of
sample rate may be NOT supported by your sound card ; this function may be not
compatible with the use of other audio applications at the standard sample rate; if
you get any error message, please uncheck this option...
Flip I/Q on 6m : Flip I/Q on 6m (K3 and other rigs with a reversed conversion scheme on
6m)
CW: Flip and USB: Flip : Flip I/Q for CW and USB (vs LSB). Required JUMA TRX2: DC
Receiver with Phasing.
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