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Operation Manual  

 

Video Entertainment System  
 
PR-422CA Marine AM-FM/TV Antenna  
PR-420CA Marine FM/TV Antenna 

 

NSN: 5985-01-369-2757  PN: PR-420CA (0GMC3) 
NSN: 5985-01-379-9838  PN: PR-422CA (0GMC3) 

 
 
 
 
 
 
 
 
 

 

 

 

 

Printed in USA 

 
 
 
 
 

Содержание PR-420CA

Страница 1: ...9 91 1 F Fa ax x 8 81 13 3 8 88 85 5 3 36 60 01 1 E Em ma ai il l s sa al le es s n na av va al l c co om m W We eb bs si it te e w ww ww w n na av va al l c co om m Operation Manual Video Entertainme...

Страница 2: ...a pattern omni directional Supply voltage to antenna 15VDC nominal Current consumption 130 mA Nominal Operating temperature 40 to 55 C Protection circuits static discharge device fires at 65 volts Imp...

Страница 3: ...c charges and is removable for field repair or replacement Projected life at sea 15 years This internal amplifiers receive 15VDC operating power from the Naval head end via coax cable It is removable...

Страница 4: ...plifier should be less than 75 feet for best results Any coaxial cable exposed to sunlight should be painted with non metallic paint to prevent possible UV damage over the long term Bolt the head end...

Страница 5: ...R or equivalent Test procedures TDR reading should be taken on each piece of coaxial cable where physical measurements are not possible Lengths of all cables to one foot accuracy should be shown on as...

Страница 6: ...wings These final drawings are invaluable for future trouble shooting Copies should be made for Naval Tampa the Ship owner and the Shipyard for future reference Naval Tampa will archive such drawings...

Страница 7: ...or to the Antenna Input port via a DC block Adjust the level of the generator for 0 dBmV and a frequency suitable for the amplifier being adjusted Measure the signal at the outlet with the weakest sig...

Страница 8: ...f overlap with each winding Shown below is a short pigtail of RG 59U coax cable terminated in a Snap and Seal F connector which is then joined to a female female adapter or barrel connector The antenn...

Страница 9: ...oward the fitting with one half overlap with each winding The last wrap again comes straight back over the previous wrap without a diagonal The seal is slightly sticky and should be molded now by hand...

Страница 10: ...tube amp Removing the changeable repairable amplifier Look into the mounting flange and the white plastic cap will be seen Grip the rim of the cap with long nose pliers and pull Move pliers to the oth...

Страница 11: ...ration at sea Lead content is then less than 10 grams of Lead Pb total Specify with order and note that RoHS certification and sticker are omitted The product has an expected life of 15 years at sea t...

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