ETS-Lindgren 7604 Shielded Coil Antenna - Manual (Page 25)

Appendix D: Performance, Theory, Measurement
Following is a comparison of loop performance, theory, and measurement.
The Model 7604 Magnetic Field Pickup Coil performs as predicted in Theory of
Operation by (5) on page 18. To verify this, a calibration of the antenna was
performed. The calibration setup consisted of:
• A transmit loop;
• The Model 7604 as a receive loop;
• An HP8116A Pulse Function Generator;
• An HP7478A Multimeter; and
• An HP4194A Gain/Phase Analyzer.
The transmit loop was a single turn center conductor of 215 mm in diameter with
a thermocouple having a k-factor of 650. The separation between the loop
antennas was 500 mm. The thermocouple converts the current on the transmit
loop to a DC voltage value that can be read on the multimeter. The
antenna factor in dB(pT/µV) is computed as follows:
Performance, Theory, Measurement | 25