Pictures Of Transmitter Signals - Nokia RH-30 Series Troubleshooting Instructions

Pictures of transmitter signals

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200mV/div
1
VPCTRL _850/900 power level high at R703/C703
VPCTRL_1800/1900 power level high at R704/C704
500mV/div
VANT_1 / GSM850/900 TX at C805
VANT_2 / GSM1800 TX at R804
VANT_3 / GSM1900 TX at C806 OV
( no signal/ Flatline on Oscilloscope screen)
500mV/div 100us/div
VTXB_900 at C713, VTXB_850 at C 713
VTXB_1800_1900 at C714
100us/div
100us/div
TXI
200mV/div
TX I/Q at R516/517 power level high Ran-
C
_
dom data
1
500mV/div
VANT_1,VANT_2,VANT_3
TXP at J504
500mV/div
100us/div
100us/div
MTB 100us/div
VP