DE AFN4VN NR OO1
031500Z APRIL 2007
FM AFN4VN TX
TO ALL USAF MARS STATIONS
INFO: AGA3C
AFN1EC
AFN1TS
AFN2RT
AFN2AC
AFN3AT
BT
SUBJECT: MERGE OF TRANSCON MANNED DIGITAL NET WITH TRANSCON VOICE NET
EFFECTIVE 1600Z 2 APRIL 2007 ALL TRR MANNED DIGITAL NET OPERATIONS CEASED
ON TRR FREQUENCIES, AND THOSE NET OPERATIONS WERE MOVED TO THE TRANSCON VOICE
NET FREQUENCIES.
DIGITAL STATIONS WILL NOW CHECK INTO THE TRANSCON NETS USING ONLY VOICE
MODES. DAYTIME VOICE CONTACT WITH THE TRANSCON VOICE NCS WILL BE MADE ON THE
TRANSCON NATIONAL CALLING FREQUENCY TVE, 13.993.1 DIAL, USB. NIGHT TIME OPERATIONS
MOVE TO FREQUENCY TVD 7.540.1 DIAL, USB.
THE TRANSCON VOICE NCS WILL COORDINATE DIGITAL MODES AND FREQUENCIES TO
BE USED FOR PASSAGE OF DIGITAL MESSAGES, AND FOR DIGITAL PRACTICE TRANSMISSIONS
BETWEEN DIGITAL STATIONS.
ALL CURRENT TRR NET OPERATIONAL TECHNIQUES AND MODES WILL BE CONTINUED
USING TRANSCON VOICE NET FREQUENCIES. DIGITAL STATIONS WILL CONTINUE USING
THE CURRENT TRR NET OPERATING PARAMETERS.
DURING ACTUAL EVENTS, STATIONS WITH BOTH VOICE AND DIGITAL CAPABILITY WILL
BE ASKED TO MONITOR FREQUENCY TVE DURING DAYLIGHT HOURS OR AT NIGHT TVD FOR
INCOMING TRAFFIC. THE TRANSCON NCS WILL ATTEMPT TO FIND A COMPATIBLE LINK
FOR THE CALLING STATION WHO HAS TRAFFIC, AND MOVE BOTH STATIONS TO A TRAFFIC
HANDLING FREQUENCY.
ANY QUESTIONS CAN BE ADDRESSED TO AFN2RT, AFN4VN OR AFA4CU.
US AFMARS: PROVIDING THE REINS OF COMMAND IN EMERGENCIES.
SGD: CLAUDE S. BAKER
NATIONAL HF VOICE NET MANAGER
