Installation Manual
Table Of Contents
- Foreword
- Product Safety and RF Exposure Compliance
- Before using this product, read the operating instructions for safe usage contained in the Product Safety and RF Exposure booklet enclosed with your radio.
- ATTENTION!
- This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements. Before using this product, read the RF energy awareness information and operating instructions in the Product Safety and RF Exposure booklet enclosed wi...
- For a list of Motorola-approved antennas, batteries, and other accessories, visit the following website: http://www.motorola.com/governmentandenterprise
- Document Copyrights
- Disclaimer
- Trademarks
- Spectrum Series™ Base Loaded Mobile Antennas Installation Manual
- Spectrum™ Series Base Loaded Mobile Antennas
- Introduction
- Mobile Antenna Installation
- Spectrum™ by Motorola
- Spectrum™ by Motorola
- Product Safety and RF Exposure Compliance
Mobile Antenna Installation 13
6. Use the adjustment range of the whip in the adaptor in order to minimize the VSWR.
7. Insert the shorter part of the allen wrench into the screw and tighten the set screw at tight as
yo can by hand. If a torque wrench is available, tighten set screw to a torque of 25 – 30 inch-
lbs.
A simple table for converting the ratio of forward power and reflected power to VSWR is given below:
Example: If the forward power (Pfwd) is measured as 100 watts and the reflected power (Pref) is 3
watts, calculate Pfwd/Pref = 33.3. Since 33.3 is between 25 and 58.8 m, the chart above indicated
that the VSWR is less than 1.5 : 1.
Table 3
Pfwd/Pref VSWR
440.6 1.1 : 1
58.8 1.3 : 1
25.0 1.5 : 1
14.9 1.7 : 1
10.4 1.9 : 1
7.9 2.1 : 1