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RF Mixer Spur Calculator
f
spur
= | n·
RF
± m·LO | , n=0..9, m=0..9
Window 1
Window 2
Window 3
Overlap is inclusive (≥1 Hz)
n
m
±
Order
IF
from
RF
Range 1 (MHz)
IF
from
RF
Range 2 (MHz)
IF
from
RF
Range 3 (MHz)
Mode
RX: input=RF, output=IF · TX swaps labels
TX
LO (MHz)
FLO
n max
m max
Rows
All
Only hits
Duplicates are suppressed: if n=0 or m=0, “+” and “−” are identical under |·|. (n,m)=(0,0) excluded.
RF
input ranges (MHz)
Range 1 Start
Range 1 Stop
Range 2 Start
Range 2 Stop
Range 3 Start
Range 3 Stop
IF
output windows (MHz)
Window 1 Start
Window 1 Stop
Window 2 Start
Window 2 Stop
Window 3 Start
Window 3 Stop
Export CSV
Reset
Recalculate
Summary
Rows:
0
Hits:
0
Highlight triggers if computed output range overlaps any window by ≥1 Hz. Internally everything is in MHz (1 Hz = 1e-6 MHz).