Setting the receiver frequency to a PLL oscillator

command string (PC to PLL):   *P1VO=00435450000 <CR>

The PLL must reply anything, e.g. *P1VO=00435450000 <CR>

Requesting the signal strength of a receiver

command string (PC to RX):   *R3SS <CR>

• *    is the start character for the SHACKBUS command
• R3   is the device address (user defined, e.g. R3 means 'Receiver No. 3)
• SS   is the command "request signal strength value" which will be interpreted by receiver's processor

The receiver will reply e.g. *R3SS=084 <CR> if the signal strength is -84 dBm signal

More command examples

  *C1SR=4    Relay-driver 1 will set relay No. 4 (ON)
  *C1CR=4    Relay-driver 1 will clear relay No. 4 (OFF)

  *A1AZ=180  Antenna azimuth is set to 180 degree
  *A1EL=039  Antenna elevation is set to 39 degree
  *A1CA      Request current value of antenna azimuth (while running). Reply is: *A1CA=166
  *A1ST      Request antenna rotor status. Reply is: *A1ST=0 (means 'final position reached')

• P1   is the device address (user defined, e.g. P1 means 'PLL-oscillator No. 1)
• VO=* is the command "set receiver frequency" which will be interpreted by PLL processor
• 00435450000  is the desired frequency (in Hz) to be set by the