How much seeding do we have?

How to take this measurement:
1) offset SQZ laser VCO by -1000 Hz
2) Demodulate LO with 3.124 or 3.126 MHz. This requires switching out RF output in the CER using the IFR set to 12dBm. 
3) Unplug the RF output that is in the rack left to the IFR, U4 channel 1. Send the new RF demod into ISC SQZ 30.
4) Back in the control room. Lock LO loop. 
This is a Homodyne measurement. Remember when LO is unlocked, we’re seeing mean squeezing.

e = 1.6 (10^(-19)); (*Coulomb (A/s)*)

SNcurrent = 0.5 (10^(-3));(*power hitting the HD during SH measurement (per diode)*)

SN = (Sqrt[2 e SNcurrent]) (Sqrt[2]) (*Shotnoise in A*)

(*To get shotnoise in V, multiply by 10000 transimpedance. This number agrees with the V/(Sqrt[Hz]) measurement from the control room (see plot above)*)

SN 10000

(*We know seed in V, solve for current*)

BW = 0.47; (*BW taken into account the flattop measurement BW*)

Solve[10000 A(Sqrt[2]) (Sqrt[BW])== 2.78 (10^(-6)),A]

(*Responsivity is 0.8 A/W*)

((2.87 (10^(-10)))/0.8)

(*36 nW of seeding at 40 times more CLF power*)