ETS-Lindgren 3301C Active Monopole - Manual (Page 8)

The Model 3301C is designed for maximum sensitivity and dynamic range, and is
capable of sensing fields of 7 dBuV/m at 1 MHz with a 1 kHz bandwidth.
However, it will not saturate below field strength of 0.8 V/m. As a result, the unit
provides a wide dynamic range of 111 dB nominal at mid-band. In addition, at
10 dB and 30 dB (+/-10%), internal attenuators enable the Model 3301C to be
used in fields up to 25 V/m, expanding the dynamic range to 141 dB. A saturation
indicator provides an alert to the need for internal attenuators.
Standard Configuration
A NTENNA B ASE
• Includes built-in preamplifier and BNC (output) connector. Base is
drilled to accept ETS-Lindgren or other tripod mount with standard
1/4–20 threads.
• Four thumbscrew knobs used to secure the counterpoise to the metal
grounding strips on the top of the antenna base are shipped attached
to the grounding strips (thumbscrews not shown in photo).
For a complete description of the Model 3301C controls, switches, and indicator
lights, see Operation on page 35.
8 | Introduction