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时间:2011-10-23 13:33来源:蓝天飞行翻译 作者:航空

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In areas where there are known communication gaps, the OIA may authorize an alternate communications plan.  The facility operator will notify the OIA or designee, before beginning the mission, of the patrol’s start and end times and the names of all individuals aboard.  The facility operator notifies the OIA, or designee, immediately upon return from the mission.  At any time the mission is expected to run more than 15 minutes beyond the estimated time of arrival (ETA), the facility operator communicates a new ETA to the OIA, or designee, as soon as practicable, but in no case later than 15 minutes from the original ETA.
 
A.6.  Communications Security
 It is important for the flight crew to keep in mind that generally air/ground communications will occur on “open channels” and may be monitored by any person with a scanner, receiver, or transceiver.
Communications Security (COMSEC) and Operational Security (OPSEC) should always be considered as communications are being composed to ensure that sensitive information is not inadvertently disclosed by the transmissions.  Unless the mission profile includes provisions to the contrary, or a request is received from a Coast Guard unit, the following precautions should be taken when planning transmissions on “open channels”:
. The positions of Coast Guard or Auxiliary vessels should not be disclosed. 

. Activities of law enforcement vessels should not be disclosed.

. Locations of military vessels should not be disclosed.

. Reports of suspicious activity might better be reported after landing unless notification is urgent.


Examples of when these reports are part of the mission profile or are otherwise permissible are:
. While on ice reconnaissance patrols, Auxiliary aircraft might be requested to relay the location of the ice breakers.

. During exercise support missions, the locations of military vessels may be requested.

. During regular missions, a Coast Guard unit may request that the flight crew report the location of one of its assets.

. During training missions, prior agreement may have been reached to direct vessels to the “aid” of a Coast Guard or Auxiliary vessel.


 


 
Section B. Radio Equipment


 
Introduction
 This section describes the radio frequencies on which Auxiliary aircraft operate and the installation of the radio equipment.
 
B.1.  Aircraft Band
 One or more radio transceivers (VHF-AM) operating on VHF-AM in the frequency range of 118.000 to 135.975 MHz are common in all aircraft, and are aboard facilities flown by Auxiliarists.  These units are compact and designed to fit in industry-standard spaces in the instrument panel.  These transceivers are operated in the same manner as radios aboard vessel facilities.  The front panel normally contains an off/on volume control, a squelch control, which is used to minimize background noise, and a frequency selector, which usually displays the frequency digitally.  If there is more than one aircraft radio, there will generally be a selector switch that selects which radio is to be used for transmission and/or reception.  It is possible, depending on aircraft installation, to have two radios on at one time enabling monitoring of both frequencies at the same time.  The following are common aircraft frequencies:
 
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