ETS-Lindgren 3301C Active Monopole - Manual (Page 45)

8. Move the receiver cable to the output port on the Model 3301C, and
then place a 50 Ω load on the receiver port of the 3301CAL.
9. Read the output signal. The antenna factor is the input signal (read
from the receiver port on the 3301CAL) plus the combined correction
factor of 11 dB, minus the output signal (read from the output port on
the Model 3301C). Both readings are assumed to be logarithmic.
Example of Antenna Factor Calculation
1. The input read from the 3301CAL receiver port is 50 dBµV.
2. The output read from the Model 3301C output port is 59 dBµV.
3. The antenna factor is the input plus the combined fixture loss and
effective height correction factor, minus the output. Assuming a
reading is taken with a 1-MHz signal input to the 3301CAL and a
combined correction factor of 11 dB:
50 dBµV + 11 dB (1/m) - 59 dBµV = 2 dB (1/m)
Calibrating the Model 3301C | 45