
6509 Loop Antenna
Frequency Range: 1 kHz - 30 MHz. The Model 6509 is a passive 
loop antenna designed for shielding effectiveness and immunity.
Description   Config   Specs   Charts   All Info
Key Features
Individually Calibrated 
Switchable four-band transformer 
Two Year Warranty
Description
The base of the Model 6509 loop antenna contains a type N female connector and a manually switchable four-band transformer. The 
transformer gives the antenna greater efficiency resulting in a better conversion of power to field strength.
Every loop antenna is individually calibrated in accordance with the IEEE-291 Section 2.3.1 methods, using NIST traceable equipment. By 
knowing the actual antenna factors and performance characteristics of an antenna instead of typical data, you can more accurately measure 
field strength in your tests.
Standard Configuration
Mounting Bracket drilled accepts an ETS-Lindgren or other tripod mount with standard 1/4 in x 20 threads. 
Antenna/loop assembly
Options
Individually calibrated per IEEE STD 291. Actual individual calibration factors and signed Certificate of Calibration Conformance 
included in Manual. 
Custom cases are available on request.
 

Electrical Specifications
Frequency Minimum 1 kHz  
Frequency Maximum 30 MHz  
Connectors Type N (f) 
Impedance (Nominal) 50 Ω  
Maximum Input Power 1 kW  
Pattern Type omnidirectional  
Polarization linear 
Physical Specifications
Height 47.8 cm  (18.82 inches)  
Length 15.25 cm  (6.00 inches)  
Weight 1.3 kg  ( 2.87 lb )  
Width 7.63 cm  (3.00 inches) 
Technical Charts
6509 Loop Antenna Electric Antenna Factor
6509 Loop Antenna Magnetic Antenna Factor
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