LPB FM58 User manual

LPB Communications, Inc.
28 Bacton Hill Road
Frazer, PA 19355 USA
1-877-LPB-COMM
www.lpbinc.com
Antenna Assembly Instructions – LPB FM58 Antenna
PARTS LIST
Part # Item Quantity
1Base Coil 1
2Mounting Support Pipe 1
3Mounting Bracket 2
4U-Bolt with Hardware 2
5Hex Bolt with Nut 2
6Hex Bolt with Washer 2
7Upper Element 1
8Lower Element 1
9Ring Clamp 1
10 Radial Arm with Nut 3
11 Screw with Toothed Washer 2

ASSEMBLY INSTRUCTIONS
You will need a tape measure, a 5/16” wrench or nutdriver and a phillips-head screwdriver
1. Assemble the Upper Element and Lower Element with the Ring Clamp. Attach the assembly to the
Base Coil as shown.
2. Attach the #3 Ground Plane Radials to the Base Coil as shown. Lock them in place with the supplied
lock nuts.
3. Assemble and attach the two Mounting Brackets to the Mounting Support Pipe as shown. Run your
connection cable through this Pipe and attach to the connector on the bottom of the Base Coil (PL-259
Connector).
4. Adjust the antenna length for your frequency (see chart below) and tighten the Ring Clamp Hex Bolt to
secure. Note that the length is from the top of the Lower Element to the top of the Upper Element.
5. Mount the assembled antenna on your mast using the two U-Bolt assemblies provided with the
Mounting Brackets.
FREQUENCY CHART
Frequency Length (inches)
90 MHz 41.6875
91 MHz 40.625
92 MHz 39.33
93 MHz 38.1875
94 MHz 37
95 MHz 35.8125
96 MHz 34.625
97 MHz 33.5
98 MHz 32.3125
99 MHz 31.5
100 MHz 29.875
101 MHz 28.6875
102 MHz 27.625
103 MHz 26.8125
104 MHz 25.625
105 MHz 24.8125
106 MHz 23.625
107 MHz 22.8125
108 MHz 21.6875
109 MHz 20.875
110 MHz 19.6875
Antenna Specifications
Gain: 3.4dBi Pattern: Omnidirectional
VSWR: < 1.5:1 Polarization: Vertical
Maximum Input: 200 Watts Maximum Length: 7 feet 7 inches
Range: 88 – 110 MHz Weight: 2.4 pounds