Sec.  80.71   Operating controls for stations on land.

   Each coast station, Alaska-public fixed station and Alaska-private fixed
   station must provide operating controls in accordance with the following:

   (a) Each station using telegraphy or telephony must be capable of changeover
   from transmission to reception and vice versa within two seconds excluding a
   change in operating radio channel.

   (b) During it hours of service, each station must be capable of:

   (1) Commencing operation within one minute after the need to do so occurs;

   (2) Discontinuing all emission within five seconds after emission is no
   longer desired. The emission of an unattended station in an automated
   multistation system at which restoration to standby is automatic on
   conclusion of a call must be discontinued within three seconds of the
   disconnect signal or, if a disconnect signal is not received, within twenty
   seconds after reception of the final carrier transmission from a ship
   station.

   (c) Each station using a multichannel installation for telegraphy must be
   capable of changing from one telegraphy channel to any other telegraphy
   channel within the same sub-band below 525 kHz within five seconds. This
   requirement need not be met by equipment intended for use only in
   emergencies and not used for normal communication.

   (d) Every coast station using a multi-channel installation for
   radiotelephony must be capable of changing from one telephony channel to
   another telephony channel within:

   (1) Five seconds within the frequency band 1605–3500 kHz; or

   (2) Three seconds within the band 156–162 MHz. This requirement also applies
   to marine utility stations.