Can anyone recommend a reasonably priced audio frequency spectrum analyzer which accepts electrical line level inputs?
Thanks,
Steve
Thanks,
Steve
For self contained instruments, I like the Tektronix AM700 because it's easy to use. I also have the R&S UPL. Better specs & more features - keep the manual handy.
For a two piece system, an Audio Precision System One or Two, a USB interface, and a laptop or PC running APWIN software. Really stay close to the manual with these.
Here you can see the AM700 and the UPL on my audio bench:
For a two piece system, an Audio Precision System One or Two, a USB interface, and a laptop or PC running APWIN software. Really stay close to the manual with these.
Here you can see the AM700 and the UPL on my audio bench:
Attachments
Ah, the range of inputs. There's the difficult part. I suppose like a DMM; mv to hundreds of volts. That leaves out just taking a good USB connected audio ADC and the cost savings of using that strategy. Unless you're willing to build a front-end yourself, which has been done in DIYAudio.
For a commercial solution, now you're in the test equipment realm, which probably means one of the USB scopes that has FFT as a feature in its companion software. While they typically have a range of input signals better than mic to line level, they'll lack the bit length the latest audio ADCs enjoy. So it's almost like you dont get to have both, unless you make it yourself. I'm sure someone makes it, but I'd bet the price is well out of most hobiests budget.
For a commercial solution, now you're in the test equipment realm, which probably means one of the USB scopes that has FFT as a feature in its companion software. While they typically have a range of input signals better than mic to line level, they'll lack the bit length the latest audio ADCs enjoy. So it's almost like you dont get to have both, unless you make it yourself. I'm sure someone makes it, but I'd bet the price is well out of most hobiests budget.
HP3585B.
Bit weighty, but it does DC-40MHz, with close to 100dB dynamic range, nice quiet front end with 50Ω, 75Ω, and 1MΩ inputs and good up to 7V. Res bandwidth down to 3Hz. Also calculates noise in 1Hz bandwidth at marker.
Bit weighty, but it does DC-40MHz, with close to 100dB dynamic range, nice quiet front end with 50Ω, 75Ω, and 1MΩ inputs and good up to 7V. Res bandwidth down to 3Hz. Also calculates noise in 1Hz bandwidth at marker.
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Hi XMO:
Just curious what do you do on this work bench, there is no room!
Do you work on cell phones?
Art
Just curious what do you do on this work bench, there is no room!
Do you work on cell phones?
Art
That is a really nifty lineup of tools, have you used these Jan?
What’s so exciting about these? They are as expensive as the low end TBS stand alone (no PC required) Tektronix scopes and much more expensive than the decent Chinese scopes (Rigol, Instek, Owon, etc...), yeah, like this TiePie stuff is assembled in Amsterdam

Art asked: Just curious what do you do on this work bench, there is no room!
Do you work on cell phones?
_____________________________________
I called this a 'flex' bench with the idea that it has the flexibility to be set up to conduct whatever test or experiment I don't have room for elsewhere. It is three and a half feet deep and nine feet wide
I have other benches for diagnostics, soldering, rework, & RF.
I don't work on cellphones.
Do you work on cell phones?
_____________________________________
I called this a 'flex' bench with the idea that it has the flexibility to be set up to conduct whatever test or experiment I don't have room for elsewhere. It is three and a half feet deep and nine feet wide
I have other benches for diagnostics, soldering, rework, & RF.
I don't work on cellphones.
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