Cell phone signal testing with VSA6G2A - Triarchy Technologies

1 1 Cell phone signal testing with VSA6G2A 2 GSM channel frequencies (ARFCN)Frequency BandARFCN RangeUplink Frequency(MHz)Downlink Frequency(MHz)P-GSM 900 + *ARFCN935+ *ARFCNE-GSM 900 + *ARFCN890+ *(ARFCN-1024)935+ *ARFCN935+ *(ARFCN-1024)DCS 1800 + *(ARFCN-512) + *(ARFCN-512) PCS 1900 + *(ARFCN-512) + *(ARFCN-512) R-GSM 900 + *ARFCN890+ *(ARFCN-1024)935+ *ARFCN935+ *(ARFCN-1024)GSM 450 + *(ARFCN-259) + *(ARFCN-259) T-GSM-810 Dynamic 850 + *(ARFCN-128) + *(ARFCN-128) GSM 750 + *(ARFCN-438) + *(ARFCN-438) 33G channel frequencies (UARFCN)BandDownlinkLow (MHz)UarfcnDownlinkHigh (MHz)UarfcnUplinkLow (MHz)UarfcnUplinkHigh (MHz)UarfcnBandwidth(MHz)DuplexspacingEq uivalentGSM GHz2110105622170108381920961219809888601 90 MHz2US PCS 1900193096621990993818509262191095386080 MHz143 DCS 180018051162188015131710937178512887595 MHz134 AWS2110153721551738171013121755151345400 MHz5 GSM 85086943578944458824413284942332545 MHz8680087543878854413830416284041881045 GHz2620223726902563250020122570233870120 MHz8 GSM 90092529379603088880271291528633545 MHz10 UARFCN = 5 x center Frequency of CH (MHz).

2 4 LET frequency band E-UTRABandUplinkLow (MHz)UplinkHigh (MHz)DownlinkLow (MHz)DownlinkHigh (MHz)Subset of bandDuplexspacingChannelBandwidth(MHz)1 IMT192019802110217065190 MHz5,10,15,202 blocks A-F18501910193019902580 ,3,5,10,15,203 DCS 171017851805188095 ,3,5,10,15,204 AWS171017552110215566400 ,3,5,10,15,205 GSM-8508248498698942645 ,3,5,107 IMT-E GHz2500257026202690120 MHz5,10,15,208E-GSM 9009259608809153545 ,3,5,10 5 Measure Cell phone signal at air1: VSA6G2A directly connected with cell phone band : Put antenna out of room with fixed location to pick cell phone based station signal from air. 6 Pick up GSM signal from the airSet VSA6G2A frequency range from850 MHz to 870 MHz to pick T-GSM 810 down link band. The current Waveform is shown the a lot of GSM signal display is shown realtimg slot of GSM signal . 7 Pick up GSM signal from the airPick up one GSM signal , put it intocenter location by marker menu To center.

3 Open the Demo function TO timingwaveform canbe GSM chwill be workingas data streamsuch asGPRS. 8 Pick up 3G/LTE signal from the airLTE band 5 downlink:869 MHz~894 MHzLTE signal at air will be:869 MHz ~874 MHz880 MHz ~885 MHzBandwith for LTE is 5 MHz3G band 5 downlink:869 MHz~894 MHz3G signal at air will ~ ~ for 3G is 9 Pick up 3G signal from the air3G signal at air will ~ for 3G is signal is WCDMA, it lookslike noise, very smooth. 10 Pick up LTE signal from the airLTE signal at air will be:880 MHz ~885 MHzBandwidth for LTE is 5 MHzLET signal is OFMA,there area lot sub band, so that spectrum is not smooth, it will Jump with data. 11 Cell phone radiation testing Make cell call to cell phone ,Keep phone on connect with whipantenna to pick cell phoneup link signal 12 Cell phone radiation testing It is 3G 2, US PCS 1900 Band frequency range ~ is 13 Cell phone base station test Drive to cell phone base station tower, put antenna at top of car.

4 Using full SPAN to pick up cell phoneSignal:1: 732 MHz,-36dBm,Band442: 880 MHz,-31dBm,Band53: 1888 MHz,-43dBm,Band354: 2136 MHz,-55dBm,Band15: 2644 MHz,-49dBm,Band7 14 Cell phone base station test Base down link signal ~ Band 2, combine 2G, 3G,4G LTE signal is more clear. 15 Cell phone base station test Pick up LTE section at Band 7 Waterfull can be shown themore detail OFDM modulation