Oscilloscope Scope
A look at what is currently available on eBay
 2 X Oscilloscope Scope Clip Probe 100MHz Tektronix HP US $16.99 
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 100MHz Oscilloscope Scope Probe for Tektronix and HP US $8.99
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 SCOPE PROBE for UT81B Digital Multimeter Oscilloscope US $4.99
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 Tektronix Oscilloscope scope probe P6028 with clip #3/3 US $9.99
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 New 2 pcs Oscilloscope Scope Clip Probe 100MHz Kit F/S US $16.99
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 New 2x Oscilloscope Scope Clip Probe 100MHz Kit US $11.99
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why does oscilloscope have signal when nothing connected?
I am using a remote with an IR LED connected to the oscilloscope to to measure the pulses for each function on the remote. i noticed after a while the oscilloscope picked up a frequency but i couldnt figure out from where. there was an air condition compressor outside but i was on the second floor. what could have caused the scope to freak out?
If the probe of the scope is not connected to anything, or connected to a high impedance circuit, it will pick up noise and other stuff from the air. It could well be line frequency noise (50 or 60 Hz) from the wires in the walls and transformers and motors of various equipments.
If it picked up "a frequency" as you say, you should be able to measure it with the scope.
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