ETS-Lindgren 6512 Shielded Loop Antenna - Manual (Page 23)

www.ets-lindgren.com Operation 23
5.0 Operation
Before connecting any components or placing
into operation, follow the safety information in
the ETS-Lindgren Product Information Bulletin
included with your shipment.
When using the Model 6509 as a transmitting
device: Reduce amplifier power to zero watts
before band switching, and then select the
frequency band by rotating the band switch.
To calculate the field strength:
Signal Level
+ Cable Loss
+ Antenna Factor
= Relative Field Strength
Cable loss should be measured periodically for each cable used in
testing.
Front Panel Indicator Lights: Models 6502 and 6507
 Saturation Indicator—Illuminates when input signal intensity exceeds
the 1 dB compression level of 5 volts per meter (Model 6502) to
10 volts per meter (Model 6507), and will remain illuminated for about
1 second.
 Power Indicator—Illuminates to show that the loop is on and
functional. When the charge on the battery decreases to the point that
the antenna calibration is no longer valid, the LED will go dark.
However, the antenna will still function and provide reasonable output
signals until the batteries are spent.