Spectrum DSP M2 User Manual page 41

with care, considering the limits of the PLL, the surrounding hardware and the
tuning algorithm itself: There are no guarantees that any of the hardware will
work at all outside the "normal" tuning range!If you enable this feature and tune
outside this range, note that the frequency will NOT be saved with a power-off.
Additionally, if you tune outside this range and THEN turn OFF this feature, you will
find that the band that you were on from which you tuned outside the range may be
"locked out" until you re-enable this feature and tune back down into a "valid"
amateur band (e.g. 80-10 meters.) Again, this feature is for EXPERIMENTATION
ONLY. If it is reported that it is useful, it and other, related features may be
integrated into the transceiver, later.
I/Q Gain and Phase related items:
Notes:
Please read the procedure for calibration of the RX IQ gain and phase balance
•
for more detailed information. This procedure may be found elsewhere in this
document.
You must be in the appropriate mode (e.g. LSB, USB, RX, TX) in order to adjust the
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relevant item. If the item is available to be adjusted, its parameter will be displayed in
white.
LSB RX IQ Bal. - This adjusts the IQ Gain balance in LSB RX mode.
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LSB RX IQ Phase. - This adjusts the IQ Phase balance in LSB RX mode.
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USB/CW RX IQ Bal. - This adjusts the IQ Gain balance in USB/CW RX mode.
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USB RX IQ Phase. - This adjusts the IQ Phase balance in USB RX mode.
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AM RX IQ Bal. - This adjust the IQ Gain balance in AM RX mode.
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LSB TX IQ Bal. - This adjusts the IQ Gain balance in LSB TX mode.
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LSB TX IQ Phase. - This adjusts the IQ Phase balance in LSB TX mode.
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USB/CW TX IQ Bal. - This adjusts the IQ Gain balance in USB/CW TX mode.
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USB TX IQ Phase. - This adjusts the IQ Phase balance in USB RTX mode.
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Transverter related items:
XVTR Offs/Mult - This is a transverter multiplication factor that can range from OFF to
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1-10. When this parameter is set to something other than OFF, the multiplication factor
and the offset (below) is applied and the digits of the main frequency are displayed in
YELLOW.
Note: When the transverter mode is active, 1 MHz and 10 MHz frequency step sizes
will be available for tuning the main frequency dial.
XVTR Offset (Hz) - This is the frequency offset that is applied to the transverter
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multiplication factor. A frequency offset of up to 999.000 MHz may be "dialed" in.
◦ When this parameter is selected within the menu system it is possible to use the
STEP buttons to select a step size of 1 and 10 MHz. When one navigates away
from this parameter in the menu and a 1 or 10 MHz step size is selected, a smaller
step size will automatically be forced.
Spectrum DSP M2 User Manual V1.1
P 41