LF Engineering L-950 Quick Start Manual

LF Loop Response
(induced magnetic field)
10
5
2
Ø
Ref: 0 dB
-5 2
-10
-15
10 100 200
LF Loop Output Sensitivity
500
300
200
100
0
10
100
LF Engineering Co. Inc. warrants that at the time of shipment the L-950 LF antenna
manufactured by LF Engineering Co. is free from defects in material and workmanship.
LF Engineering Co. obligation under this warranty is limited to the replacement or repair
of the product within 1 year from date of shipment.
Copyright 2008 by LF Engineering Co.
All rights reserved
Printed in USA
300 400
500 600
kHz
for 1 v/m input
mv/1v/m
200
300 400 500
kHz
WARRANTY
The L-950 LF Active Loop Antenna is a broadband coaxial wound loop
designed to be used in conjunction with an LF receiver input circuit.
Frequency response is 10 kHz to 500 kHz (broadband). The 24 inch
square PVC loop may be broken down into components for storage. The
loop antenna and receiver may be hand held or mast mounted.
The loop is constructed of multi-turn coax, and is secured to a light weight
24 inch diameter pvc collapsible frame. The antenna preamplifier is
700
weather protected within a weatherproof housing and powered through the
coaxial feed line. A 12 vdc power supply / coupler interface is provided with
receiver connections.
Frequency Response:
Sensitivity:
Loop Amplifier Gain:
IP3:
Loop Nulls:
Power Requirement:
Connectors:
Size / weight:
The L-950 LF Active Loop Antenna is a balanced, broadband, peaked lowpass
coaxial design providing exceptional sensitivity and directivity. The L-950
combines a 30dB high gain low noise amplifier with a balun input and with
a heff of 6.6 mm loop input for 200 kHz, a sensitivity of 200 mV/V/m is
achieved. Nulls of greater than 30 dB can be expected with the loop mounted
in the clear. An internal sharp cutoff AM BC filter eliminates BC IMD.
Model L-950
LF Active Loop Antenna
Specifications - L-950 LF Loop Antenna
10 kHz to 500 kHz +/-3dB
(normalized loop response)
500kHz: 500mV/ V/m
200kHz: 200mV/V/m
10khz: 10mV/V/m
30dB
30dBm
>30dB
12 - 15 Volts DC @ 40 mA
BNC
24" square / 12" handle, 1.5 lb