Moseley Associates Inc 08MUD1F ユーザーズマニュアル

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3-7  
Installation 
 
602-13729-01 Rev B 
 
Expedio Digital Electronic News Gathering Radio 
3.8 Antenna/Feed System 
3.8.1  
Antenna 
Installation 
 
For compliance with FCC RF Exposure requirements the following has to be adhered to:  
1.  All antenna installation and servicing is to be performed by qualified technical personnel 
only.  When servicing the antenna, or working at distances closer than those noted below, 
ensure the transmitter has be disabled. 
2.  Typically, the antenna connected to the transmitter is a directional (high gain) antenna, 
fixed-mounted on the side or top of a building, or on a tower. Depending upon the 
application and the gain of the antenna, the total composite power could exceed 20 to 61 
watts EIRP.  The antenna location should be such that only qualified technical personnel 
can access it, and that under normal operating conditions the antenna separation from 
the user is required to be located at the distance of 3.5meters or more.  
3.  15.21 Information to user. – The users manual or instruction manual for an intentional or 
unintentional radiator shall caution the user that changes or modifications not expressly 
approved by the party responsible for compliance could void the user’s authority to 
operate the equipment. 
 
EIRP at the antenna is calculated as follows: - 
Transmit power – Cable loss + Antenna Gain    = EIRP 
E.g. 
   +31.1dBm – 6dB(for 100m LDF5-50A)  +36dBi  = 61.1dBmi