These fees are detailed in the Media Bureau Fee Filing Guide Opens a. FCC rules pertaining to radio and television broadcast stations are. 76 unauthorized radio stations were received on FM frequencies at these. Frequency Radiation (RFR) standards may raise significant public.
Basic FM Radio Station RF Design Good Practices.1.Basic FM Station RFDesign Good PracticesPrepared By:Frank W. Massa - Asia Pacific Sales, Elenos BroadcastM: +66 83 618-9333 T: +1 831 [email protected] guide is intended as a reference for basicrecommendations to provide the necessary practices to keepyour equipment operating as intended for normal FMTransmitter Operation for many years.A Note on Installation and Warranty Coveragewww.elenos.comThe customer is responsible for the installation, maintenanceand inspection of the products as well as checking that theclimatic conditions in which the products are placed for theiruse are suitable and do not comprise operation1. Always Follow the Instructions Provided in TransmitterUser Manual2.
Always follow the Instructions provided by themanufacturer for Installation of the Antenna, TransmissionLine System, AC line equipment and other stationaccessories.3. Do not apply Power to the Transmitter until theTransmission Line, Antenna (or RF Dummy Load) areconnected.www.elenos.comWARNING: Do not turn on RF power beforeyou have connected the device to theantenna or RF Test Load (Dummy Load)Follow the Instructions in the ManualNote: CoaxSwitch orManual U-LinkSuggestedTransmitter Power WarningTransmitter Test Load.Good Transmitter Site Designwww.elenos.comA good transmitter site design will incorporate the following:1. Good air conditioning. Calculating the AC load for the transmitter waste heat,other installed equipment, as well as the building solar gain. Waste heat is afunction of AC/RF transmitter efficiency, which is found in the owner’s manual.2. Good grounding. A good grounding system is a must for all transmittersites.
This includes lightning and RF grounds. Low impedance paths to a singlepoint ground is a must.3. Good power conditioning. Transmitter sites are susceptible to all sorts of utilitycompany irregularities.
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Surge protection is a must.4. Good lighting. Nothing is worst than fumbling around in a half lit transmitterroom trying to make repairs.5. Adequate work spaces and clearances. Electric panels require 1 meter ofclearance from the front.
Cabinet doors should be able to swing fully open. Allaccess panels should be, well, accessible.6. Adequate electrical system. Pole transformers and service entrance properlysized for load. Backup power. Plenty of work outlets around the room.7.
Low VSWR Antenna Transmission System. Make sure the Antenna,Transmission line and connectors are all designed to reduce the VSWR.Climatic Control of the Transmitter Equipmentwww.elenos.comOperate within the Equipment Specifications:1. Good HVAC System. Provide a good System that keeps the Equipment atapproximately 25 degrees C for Optimal Operation and within the EquipmentSpecifications of -5 to +45 C, and has good airflow with a proper air filtration toprevent dust in the room2. Humidity Control. An Environment within the specification of 95% @ 40 CTx Temp DisplayScreenInstall andMaintain yourAir Conditioningand Heatingwhere neededHP Tx withAir Extractorfor use witha ductingsystem.Dealing with Humiditywww.elenos.comMany electronic devices have humidity specifications, for example, 5 to 95%.
Atthe top end of the range, moisture may increase the conductivity of permeableinsulators leading to malfunction. A particular danger to electronicitems, regardless of the stated operating humidity range, is condensation.When an electronic item is operated in a cool place (Transmitter Site with Aircon)and then becomes a warm and humid environment, condensation may coat circuitboards and other insulators, leading to short circuit inside the equipment.