RF PRO-1B INSTALLATION INSTRUCTIONS
This active magnetic loop antenna is designed for reception of signals over the range of 50 kHz to 30 MHz. It
includes a very high dynamic range low-noise preamplifier that can be mounted to a pole or any flat surface. The
preamplifier is designed for minimum intermodulation distortion in the presence of very high level signals that would
normally overload most amplifiers. For proper operation the preamplifier needs to be powered as shown in the
diagram shown in Figure 1 with the supplied power inserter and power supply that duplexes DC power on the same
cable carrying the preamplifier’s output. The antenna should be oriented in the proper direction to maximize reception
of the desired signals (see details below). For best performance, the amplifier should be installed near the antenna to
avoid amplifying low level local interference that may enter the coaxial cable leading from the loop antenna to the
preamplifier’s input.
Cautions:
•
This is a receive-only antenna. Do not connect it to a transmitter as it will be damaged and void your
warranty
•
Do not inadvertently connect the 20 VDC output of the power inserter to your receiver’s antenna input as
your receiver may be damaged.
•
See attached cautions and warnings relative to lightning protection and antenna installation near high
voltage power lines.
•
When operating with nearby transmitting antennas, follow the instructions below to avoid over-driving (or
damaging) your receiver’s input or damaging the loop’s low-noise amplifier.
Supplied Components
(see Figure 16)
QTY Description
1
Loop antenna
1
30 dB preamplifier
1
L-bracket
2
Saddle clamps
2
U-bolts
1
lot Mounting Screws and washers
1
Coaxial- Seal package
1
24 VAC wall mount transformer
1
3 ft F-male to F-male jumper cable
1
1 ft F-male to F-male water-proof jumper cable
1
PL-259 Adapter
1
20 VDC power inserter
1
Twin lead to F-female adapter
1
RCA- plug to RCA- plug cable and Y adapter
1
Grounding Lug
2
Nylon shoulder washers (.375 inch)
2
Nylon flat washers (.25 inch)
1
Instruction Manual
1
