07-07-2014, 08:42 AM
The situation you describe is pretty normal. The waveshape of the output signal changes on each band, so the trigger level may have to be adjusted to compensate for the difference in the waveform symmetry.
The triggering is more critical when the output signal is low. Try to increase the generator output when you have the counter connected to set the freq, then reduce it to the required level for alignment.
The best way to minimize the problem is to add an extra output to the generator, connected before its internal atrtenuator. That way you can continuously monitor the freq while simultaneously generating the attenuated lower lever signal for alignment.
The triggering is more critical when the output signal is low. Try to increase the generator output when you have the counter connected to set the freq, then reduce it to the required level for alignment.
The best way to minimize the problem is to add an extra output to the generator, connected before its internal atrtenuator. That way you can continuously monitor the freq while simultaneously generating the attenuated lower lever signal for alignment.
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