Yaesu FT-847 Operating Manual

Also see for FT-847: Technical supplement Technical supplement Technical supplement Modification

Contents

59FT-847 OPERATING MANUALOPERATIONSection 97.401(d) of the regulations governing ama-teur radio in the United States permit emergencyamateur communications on the spot frequency of5167.5 kHz by stations in (or within 92.6 km of)the state of Alaska. This frequency is only to beused when the immediate safety of human life and/or property are threatened, and is never to be usedfor routine communications.The FT-847 includes the capability for transmis-sion and reception on 5167.5 kHz under such emer-gency conditions via the Menu system. To activatethis feature:Å Press the [MENU] button to activate the Menumode of operation.Ç Rotate the SUB-TUNE knob to select Menu #40(“ 5167KHZ”).É Rotate the MEM/VFO CH knob to select “ ON”for this frequency.Ñ Press the [MENU] key to exit the Menu mode.Emergency communication on this spot frequencyis now possible:Press the [BAND] keys, as necessary, to locatethe Emergency Channel, which will be locatedbetween the 3.5 MHz and 7 MHz bands.Note that the receive-mode CLARIFIER functions nor-mally while using this frequency, but variation ofthe transmit frequency is not possible. Activationof Menu #40 does not enable any other out-of-ama-teur-band capability on the transceiver. The fullspecifications of the FT-847 are not necessarilyguaranteed on this frequency, but power output andreceiver sensitivity should be fully satisfactory forthe purpose of emergency communication.To return to normal transceiver operation, repeatthe procedure detailed above, but set Menu #40 to“ OFF” in step É of the procedure.In an emergency, note that a half-wave dipole cutfor this frequency should be approximately 45’3”on each leg (90’6” total length).Emergency operation on 5167.5 kHz is shared withthe Alaska-Fixed Service. This transceiver is notauthorized for operation, under the FCC’s Part 87,for aeronautical communications.Operation on Alaska Emergency Frequency: 5167.5 kHz(U.S.A version only)