Specifications

D17XX OEM Integration v0.1
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www.cobham.com/domo
Domo Limited doing business as Cobham Surveillance
Figure 6: Tera Term serial port settings
Power up the unit. In the Tera Term window, press ctrl d, c and then u during boot-up to
navigate to the unit type selection. Select the option that applies to unit under test and power
down the unit.
2.2 Software updates
If an update of the board’s software is required at any time, <how to do tftp?>.
Power down the unit.
3. Verify the RF RX performance
Splitter and cable loss set-up
 In order to test receive performance, the initial RF input level to the D17XX will need to
be set to -85dB at J19 and J22 whilst accounting for losses in cables and the splitter.
 Press Preset on the Spectrum Analyser. Set the Signal Generator and Spectrum
Analyser centre frequency to the mid-range of the bandwidth of the particular unit type.
 Connect the Signal Generator RF output via an N-SMA adaptor to the Splitter ‘S’ input
using an SMA-SMA cable.
 Connect 2 x CA0271 SMA-SMA cables to output Ports 1 and 2 on the Splitter.
 Set the Signal Generator amplitude to -85dB and set Modulation to Off.
 Connect one of the CA271 cables from the Splitter to the input of the Spectrum Analyser,
with a DC Block connected at the Analyser input and an N-SMA adaptor.
 Connect a 50Ω Termination or a 20dB Attenuator to the end of the other cable.
 Set the Amplitude Ref Level to -40dBm and Span to 500kHz.
 Set the Signal Generator RF Output ON, observe the signal on the Analyser and press
MKR, Peak Search.