[R-390] Call for measurements - 100dB carrier reading

[Graham Baxter]

Hi Dave,

Just to clarify, all my openloop AGC voltages were negative. I omitted
the - sign on the first two measurements.

OK, I did put the covers on. I swapped radios; I am now on as close to
mint an EAC as I have ever seen. This one is serial 8016 on the rear
panel.

I have repeated the diode load and the open loop AGC measurements.
Again I calibrated the system to read -7.0v diode load at 150uV IF in.

30 uV, diode load -1.65 V, AGC -449 mV
50 uV, diode load -2.5 V, AGC -453 mV
100 uV, diode load -4.5 V, AGC -498 mV
150 uV, diode load -7.0 V, AGC -2.98 V
300 uV, diode load -13.29 V, AGC -15.22 V
1 mV, diode load -40 V, AGC -26.7

This receiver has a much more well defined AGC knee. It seems to kick
in between 100 and 150 uV. It lifts to 1.0 V at 130 uV.

Graham