Siglent SDS2000X HD, 12bit, 2GSa/s high definition oscilloscope serie.

[Performa01]

This is -50dBm from AWG, through 70dB of attenuation.
200Mhz BW limit to limit folding noise from higher frequencies.

So we are talking about a signal of -120 dBm = 224 nVrms = 632 nVpp.

Maybe you could try with the SDS7404A, a proper BW limit set to 60 MHz and 32 Mpts FFT

[2N3055]

This is -50dBm from AWG, through 70dB of attenuation.
200Mhz BW limit to limit folding noise from higher frequencies.

So we are talking about a signal of -120 dBm = 224 nVrms = 632 nVpp.

Maybe you could try with the SDS7404A, a proper BW limit set to 60 MHz and 32 Mpts FFT

You know I will!
But first:

[2N3055]

And same thing 7000A

16MPts and 32MPts FFT

[Bad_Driver]

This is really fun!

[ebastler]

I'd say that qualifies as "in the ballpark"!