2945B Communications Service Monitor - Aeroflex

Indication4 digits plus sign (dBm, dBµV, µV, mV PD/EMF)Accuracy±2 dB for levels above -127 dBm on N-Type socket up to 1 GHzAtten Hold Facility (CW and FM modes only)Allows user to define start point for seamless generator operationacross a range of up to 20 dB (guaranteed 10 dB minimum)Reverse Power ProtectionN-Type: 50 W 10 minutes, normal operation150 W for 1 minute at 20°COverload indicated by audible and visual warningBNC: 5 W Overload indicated by audible and visual warningOutput ImpedanceNominally 50 ΩVSWRN-TypeBetter than 1.2:1 up to 500 MHzBetter than 1.35:1 up to 1.05 GHzBNCBetter than 2.2:1 up to 1.05 GHzSPECTRAL PURITY(If you require even better spectral purity than that specified here,please consider the 2948B)Residual FMLess than 15 Hz RMS (0.3 to 3.4 kHz) up to 500 MHzLess than 20 Hz RMS (0.3 to 3.4 kHz) up to 1.0 GHz (with OCXO)HarmonicsBetter than -20 dBcSpurious SignalsBetter than -30 dBc (±10 kHz to 1.5 MHz offset from carrier frequencyor over range 600 to 700 MHz)Better than -40 dBc from 400 kHz to 1 GHzSSB Phase Noise (20 kHz offset)Better than -95 dBc/Hz up to 1 GHzRF Carrier LeakageLess than 0.5 µV PD generated in a 50 Ω load by a 2 turn loop25 mm from the case. Output level less than -40 dBm into a sealed50 Ω load.AMPLITUDE MODULATION - INTERNALFrequency Range400 kHz to 1.05 GHzAM Depth Range0 to 99%Resolution1%Indication2 digitsSettingKeyboard entry, delta increment / decrement function and rotary controlAccuracyFor carrier frequencies from 1.5 MHz to 400 MHz± 7% ± 1 digit for modulation frequency of 1 kHz± 10% ± 1 digit for modulation frequencies from 50 Hz to 5 kHz± 15% ± 1 digit for modulation frequencies from 50 Hz to 15 kHzDistortionLess than 2% at 1 kHz for 30% AM, CCITT weightedModulation Frequency5 Hz to 33 kHzAMPLITUDE MODULATION - EXTERNALInput ImpedanceNominally 10 kΩ in parallel with 40 pFFrequency RangeAs internal AMModulation Frequency RangeAs internal AMSensitivity1 V RMS for 0 to 100% AMFREQUENCY MODULATION - INTERNALFrequency Range400 kHz to 1.05 GHzMaximum Deviation0 to 75 kHzIndication3 digitsSettingKeyboard entry, delta increment/decrement function and rotary controlAccuracy (1)±5% ± 10 Hz at 1 kHz modulating frequency±10% at modulating frequencies from 50 Hz to 15 kHzDistortionLess than 1% at 1 kHz for deviation of 5 kHz, CCITT weightedModulation Frequency Range5 Hz to 33 kHzResolution25 HzPre-emphasis750 µs selectableFREQUENCY MODULATION - EXTERNALInput ImpedanceNominally 10 kΩ in parallel with 40 pFFrequency RangeAs internal FM