Xprotolab Specs

[Richard O'Neill]

  I asked the company about input levels and received this info.

  I'm thinking of adding one to my DX crystal set, a narrow band 
Panadapter - of sorts.
It might be useful for detecting low level audio signals.

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The input has 7 gain settings, the screen has 4 divisions:

78.125 mV/div	==>  312.5 mV	max signal
0.15625 V/div	==>  625 mV	max signal
0.3125 V/div	==>  1.25 V	max signal
0.625 V/div	==>  2.5 V	max signal
1.25 V/div	==>  5 V		max signal
2.5 V/div	==>  10 V	max signal
5 V/div		==>  20 V	max signal

The offset position can be adjusted up and down, for example, if you have a
signal that swings from 0 to 2.5V, you would set the position at the bottom
of the screen and set the 0.625V/div gain setting. If the signal swings from
-1.25V to +1.25V, you would set the position at the center of the screen.

The input impedance is 1M ohm.

Regards,
Gabriel