We bought an oscilloscope. At the stage set-up revealed a problem with the time base. The oscilloscope detects the amplitude of the signal amplitude characteristics can be measured, but the signal is displayed as a continuous band on the screen. The oscilloscope does not react to changes in the time base. How to achieve the normal form of the displayed signal? It is necessary to collect a special scheme of measurements using a trigger connector on the front panel or not? Go to the oscilloscope module has also been raised 86107A precision timebase, but it is not yet installed in the base module. Is it possible to work without the oscilloscope module, or it is required? What should be the circuit connecting it?
It seems like your oscilloscope does not get the right trigger signal, or it is not setup to trigger on the signal it gets. In order to truly troubleshoot I'd need more information. This said here are a couple of hints:
It seems like you connected the signal to a measurement channel (i.e., a module in the mainframe)
Do you have a trigger signal connected to the trigger input at the front panel (such as a clock that is synchronous to your signal, or a pulse indicating when the signal repeats)?
Is the scope in free run mode or triggered on the front panel?
Is the signal repeating? All sampling scopes need a repeating signal/pattern except when in eye mask mode.
Press DEFAULT SETUP.
If your signal is not connected to channel 1 then turn off channel one and turn on the channel that your signal is connected to.
Then press AUTO SCALE
How fast is your signal or clock? You may have to change the trigger setup from "DC-3.2 GHz) to "Divided (13 GHz)"
My colleagues and I will be more than happy to further help you with the details. Feel free to send me a private message and I can help you further.
Sales Development - Sampling Scopes
Santa Rosa, California
Analog sine wave signal is fed from the output of the generator PSG 8257D to channel 1 of the oscilloscope directly. We tried to signal with varying frequency from 3 GHz to 40 GHz, but at any rate there is the timebase problem. Trigger connector on the front panel is not used. In the setting of the oscilloscope is set to free runes.
Thanks for information.
Right, you MUST have a trigegr signal at the front panel inout, and it MUST be synchronous with the signal going into CH1. The trigger signal cannot exceed 3 or ~12 GHz, depending on which trigger option you have.