Specifications

The [...] button (just right to the Stop button, during analysis only) opens the Macro button
frame. A right click on a macro button opens the configuration dialog ; please note OFF option
allows configuring a toggle with two commands. If Band/Mode SW Always is NOT checked
(Options), Band/Mod Switch only appears as you press the [...] button ; otherwise it is
always visible below the main frame.
Calibration
If necessary, click CAL (Calibration). TRX-Pan resets MAX/AVG/PAK integration to zero
during Calibration. Click Close to quit Calibration. Note: To use CAL, TRX-Pan should be
actively analysing and should not be in Full Screen mode.
From the Calibration screen, adjust:
Phase and Balance (by using a strong carrier about 10KHz from central frequency) to
minimize Image Frequency's level. A rejection of 50 to 60db can be achieved.
Range and Ref until the spectrum fills in the screen, or to set the maximum and minimum
levels you want to display (in dBm). TRX-Pan remembers these settings for each
band.
Levels to calibrate TRX-Pan for -73dbm=S9. A calibrated generator or simple generator
such as the Elecraft XG-2 is required. In the absence of a generator, you can disconnect
the antenna, tune the transceiver for 10m, and adjust the levels for a noise floor of about
-130dBm to -140dBm with the K3 preamp ON, depending on whether the rig has the buffer
mod and/or whether the LP-PAN has the optional preamp. TRX-Pan remembers this
setting for each value of FFTBins.
Notes
TRXPan automatically ajusts levels according to the state of PREamp and ATTenuator (K3),
Levels interacts with the sound card input levels. If you experience clipping of the spectrum
with strong signals, reduce your sound card level and increase Levels to compensate.
Levels varie according to the number of FFT Bins and sound card resolution. You have to
recalibrate TRX-Pan for each value of FFTBins. However TRX-Pan remembers CAL levels for
the various settings and Range/Ref for each band.
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