The Dude Posted September 12, 2011 Share Posted September 12, 2011 I have a quick post in the garage sale section, I don't think I really have a use for it I am curious what it actually was used for. Nick Quote Link to comment Share on other sites More sharing options...
Boxx Posted September 12, 2011 Share Posted September 12, 2011 That's a new one on me... I have no idea... Quote Link to comment Share on other sites More sharing options...
Beechnut Posted September 12, 2011 Share Posted September 12, 2011 Sweep generator covers a broad-band of freqs by "sweeping" across the set bandwidth generating freqs at a set interval. Unlike a signal generator which does one freq and can vary the amplitude. So for example. Set it to sweep from 1Mhz to 10Mhz generating freqs every 100hz. It'll sweep from one side to the other (and maybe reverse). My recollection from my older days of using test equipment. Quote Link to comment Share on other sites More sharing options...
Beechnut Posted September 12, 2011 Share Posted September 12, 2011 Television/FM would describe the frequency limits. So whatever the TV and FM ranges are would be the freqs it could cover. Quote Link to comment Share on other sites More sharing options...
oldtimer Posted September 12, 2011 Share Posted September 12, 2011 But can it detect spy cameras and microphones? Quote Link to comment Share on other sites More sharing options...
Beechnut Posted September 13, 2011 Share Posted September 13, 2011 But can it detect spy cameras and microphones? You'd need a spectrum analyzer [H] Quote Link to comment Share on other sites More sharing options...
tube fanatic Posted September 13, 2011 Share Posted September 13, 2011 Sweep generators are used to align the IF stages of TVs and FM receivers, and often the crystal filters of vintage communications receivers. It "sweeps" the frequencies on either side of a set center frequency in a linear/constant amplitude manner. By observing the operation of the IF stage or filter on an oscilloscope, the desired bandwidth can be precisely adjusted. This is needed for proper rejection of signals from adjacent frequencies which would otherwise bleed into the frequency that you are listening to (or in the case of a TV, watching!). Quote Link to comment Share on other sites More sharing options...
JJkizak Posted September 13, 2011 Share Posted September 13, 2011 You can also inject super accurate frequency markers from other test equipment to check out if you are infact screwing everything up. Standard industrial practice. And make sure you use 20 db pads and cables that have been swept before hand or your results will be unacceptable and you will be called a Duncebag. Done it thousands of times. JJK Quote Link to comment Share on other sites More sharing options...
fini Posted September 13, 2011 Share Posted September 13, 2011 But can it detect spy cameras and microphones? You'd need a spectrum analyzer Or a colonoscopy. Quote Link to comment Share on other sites More sharing options...
oldtimer Posted September 13, 2011 Share Posted September 13, 2011 Fini the colonoscope is the spy camera. Quote Link to comment Share on other sites More sharing options...
Marvel Posted September 13, 2011 Share Posted September 13, 2011 I have a nice, easy to use software program. Audio signal generator, with different waveforms (sine, sawtooth, square...), levels. You can set it to sweep between two different freq. Does .1-20Khz. Mono/stereo with phase adjustment, pink noise generator... It works really well. Bruce Quote Link to comment Share on other sites More sharing options...
skonopa Posted September 13, 2011 Share Posted September 13, 2011 But can it detect spy cameras and microphones? You'd need a spectrum analyzer Ohhh! Signal genreators, spectrum analyzers, base station emulators! I probably got nearly a million dollars worth of this equipment in my office right now. WiMAX base station emulators/signal generators don't come cheap! [] But yes, as was already indicated, the sweep generator will generator a range of frequencies or "sweep" at set intervals. It is used to test and align a reciever to ensure it is accuratly picking up the correct frequencies. In the case of the specfic unit mentioned, it is designed to run through the TV and FM signals. Quote Link to comment Share on other sites More sharing options...
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