Hello,
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Last year I purchased a TinySA Ultra in order to make some alignments in my old HF receivers, a pair of Drake SPR-4.
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To say the truth I purchased the Tiny because it goes down to 50 Khz and finding a signal generator that covers from 10/ 50Khz is quite difficult and expensive.
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I have problemms in making the alignment and I do not know if is the generator or some other part. Starting the alignment with the IF 50Khz BFO? is quite easy, first coil can zero beat the note but the following coils there is no movement? either in voltmeter or S-meter.
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I have tried with passive and active probes because I suppose that is a high impedance circuit. Maybe am I doing something wrong with the generator? Is the input typed wright, as the attached photo shows?
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This is the manual: page 23
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