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Frequency designators* for the Mission Support Network.
All MSN frequencies are Upper Sideband.
The "Dial" frequency is -1.5 KHz offset from the NTIA "Assigned" frequency.
MSA Tertiary Calling frequency used at night when MSC and MSG are unusable due to propagation ** MSB MSC Secondary Calling frequency used at night and during the day if MSG is unusable due to propagation ** MSD MSE MSF MSG Primary Calling frequency used during the day and other times depending on propagation **
Admin Net - Saturday morning. See the Nets page for times.
MSH MSI MSJ MSK
Word of Caution: Several of the MSN frequencies are very close to other MARS and various radio services frequencies. Be sure to only operate on the MSN "Dial" frequency.
* Only the frequency designator is displayed. MARS Frequencies are not displayed on this web site per MARS regulations.
** The "Calling frequency" designators and suggested times are listed on the Operations page. Be aware, these could change to the Primary, Secondary or Tertiary calling frequencies at any time depending on propagation and at the discretion of the Net Control Station. Please refer to #3 on the "Procedures" page.
Network Managers Note: Military, SHARES and Government Agencies - Please contact the Network Manager for frequency information.
Stations assigned to the Mission Support Network on AF Form 3661: The frequency matrix is no longer available in the members only section of the web site and will be sent to you at the time of your assignment to the MSN. If you need a replacement, contact the Network Manager.
This page updated 9 April 2014 @ 1547 Pacific
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JD Weiss NK7W, USAF MARS AFA9JD
National Mission Support Network Manager AFN9SN
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