Final Report of BeJamDetect Project 
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bandwidth at the outputs of the RF front-ends, that is defined by the cumulative filtering effect of 
the entire analogue signal path, is approximately 20 MHz in L1/E1 and 24 MHz in L5/E5a. 
Figure 3-4: Multi-antenna RF front-end of GALANT receiver 
The outputs of the multi-antenna RF front-ends are connected to a bank of 14-bits analogue-to- 
digital converters (ADCs) embedded in a Nutaq PicoDigitiser 125 signal processing platform (see 
Cigure 3-5). Since all array elements operate on dual frequency, L1/E1 and L5/E5a (1575.42 MHz 
and 1176.45 MHz respectively), a total of 14 channels is used of the 16 ADCs available on the 
olatform. This demands two A/D-converters connected to each antenna. 
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Figure 3-5: Signal processing unit Nutaqg PicoDigitizer 125 (on top), 
with two L5 and L1 RF front-ends 
The system is uninterruptedly receiving GNSS data, but its recording is triggered primarily by a 1- 
hour counter in nominal situation, i.e. without presence of RFI. When RFI is detected, data is 
Nitle: Final Report 
Version: 1.0 
‘age! 
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