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System integration

Power drain

 170 W PA @ 46.7 dBm
 10 W PA standby mode
 21 W  PA fans (2)
 69 W  CRX-8
 21 W  D-tacq (32 channels)
 31 W  D-tacq (64 Channel @ 12v)
 49 W  D-tacq (64 Channel @ 110v)
 18 W  DDS (operating)
 14 W  DDS (stand by)
 42 W  PC full power
 25 W  PC inactive

 410 W full operating mode
 70 W full standby mode

Calibration

• connect FWD port of PA with 10 dB attenuator, to central port of 16-way splitter box

   +47dBm - 40 dB - 50 dB = -53 dBm

• connect each 16 port of splitter box, to antenna channel input
• access master DDS with screen /dev/ttyUSB3 19200, and set it to zero-ramp chirp with FD 0.000000000000 (exactly 12 0 after decimal point). If the DDS are correctly set up, there is now exactly 80 Hz offset between primary and secondary
• enable calibration mode on DDS by inserting BNC 50 Ohm attenuator