Fellow Timenuts,
May I suggest the use of a software defined receiver (SDR) used with
suitable attenuators on its antenna input. I use a device called
SDRPlay that is low cost, covers 100kHz to 2000MHz, and has a more
sensitivity than most low cost Spectrum analysers. Used with care the
qualitative display is quite reasonable and compares well with my main
analyser the only drawback being the limited display width of 8MHz. It
would then leave more resources to purchase the important equipment.
Regards
Peter Torry
On 23/03/2016 14:04, jimlux wrote:
On 3/23/16 4:11 AM, Bob Camp wrote:
Hi
If you can see harmonics down to -60 dbc, that is about the most a
normal spectrum
analyzer will do for you on a frequency standard. This *assumes* the
part has a sine
wave output. Most standards are in the 10 MHz range, so an analyzer
that will work to
= 40 MHz is probably a good idea.
Can you do this with a USB gizmo? Sure you can. Can you trust the
results? That will
depend on the exact unit you get and your ability to calibrate it.
Might it “only” be useful
to -50 dbc? Might it work to -100 dbc? That is part of the “did you
pay $X or 10 times
that much question.
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