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Has anyone ever tried to sweep the 50Khz I.F. in the R4B with a spectrum analyzer?? WA8SAJ had a powerpoint presentation a few years ago showing screenshots using his SA to sweep the 50 Khz I.F., but he gave no real explanation of how he performed the test and adjustments for the passband curves. I have tried to reproduce his SA sweeps without success just can't seem to find the right input for the tracking generator and output from the R4B to the SA? input.? Anyone have success performing this procedure?
Dave
W6MQI