User guide

WA_DEV_FEX20_UGD_002 Rev 004 March 08, 2011 50
Fastrack Xtend User Guide
Interfaces
5.2.3. Secondary RF Interface
The Secondary RF interface is used in the FXT003 for 3G diversity antenna connection and in the
FXT004 for GPS-L1 antenna connection. It is an SMA type connector and its nominal impedance is
50.
Figure 24. Secondary (Diversity) RF connector in FXT003 and FXT004
5.2.3.1. RF Performances (FXT003)
RF performances are compliant with ETSI recommendation GSM 05.05. Refer to the tables below for
the main parameters used for both the Receiver and the Transmitter.
Table 29. Main Receiver Parameters for FXT003
Parameters
Values
GSM850 Reference Sensitivity
>-106dBm typical (Static & TUHigh)
E-GSM900 Reference Sensitivity
>-106dBm typical (Static & TUHigh)
DCS1800 Reference Sensitivity
>-106dBm typical (Static & TUHigh)
PCS1900 Reference Sensitivity
>-106dBm typical (Static & TUHigh)
3G Band I 2100 Reference Sensitivity
-106.7dBm typical (Static & TUHigh)
3G Band II 1900 Reference Sensitivity
-106.7dBm typical (Static & TUHigh)
3G Band V 850 Reference Sensitivity
-106.7dBm typical (Static & TUHigh)
Selectivity @ 200 kHz
> +9dBc
Selectivity @ 400 kHz
> +41dBc
Linear dynamic range
63dB
Co-channel rejection
>= 9dBc
Table 30. Main Transmitter Parameters for FXT003
Parameters
Values
Maximum output power (EGSM & GSM850)
33dBm +/- 2dB at ambient temperature
Maximum output power (GSM1800 & PCS1900)
30dBm +/- 2dB at ambient temperature
Minimum output power (EGSM & GSM850)
5dBm +/- 5dB at ambient temperature
Minimum output power (GSM1800 & PCS1900)
0dBm +/- 5dB at ambient temperature
Maximum output power (3G all band)
24dBm +1/ -3 dB at ambient temperature
Diversity SMA
Main RF