Agilent Technologies 8753ET, 8753ES manual Frequency offset mode3, External source mode4

Frequency offset mode3		Reference level
Frequency range	300 kHz to 3 GHz	Range	±500 dB
Option 006	300 kHz to 6 GHz	Resolution	0.001 dB
R-channel input requirements		Stability2
Power level		30 kHz to 3 GHz	0.02 dB/° C
300 kHz to 3 GHz	0 to -35 dBm	3 GHz to 6 GHz	0.04 dB/° C
3 GHz to 6 GHz	0 to -30 dBm	Range	±180°
LO spectral purity		Display resolution	0.01°/division
Maximum spurious input	<-25 dBc	Marker resolution5	0.01°
Residual FM	<20 kHz	Trace noise2
LO frequency accuracy	±1 MHz at nominal frequency	30 kHz to 3 GHz	<0.038° rms
External source mode4	(CW time sweep only)	3 GHz to 6 GHz	<0.070° rms
Frequency range	300 kHz to 6 GHz		(+5 dBm at test port, ratio
R-channel input requirements1			measurement, 3 kHz BW)
Power level	0 to -25 dBm	Reference level
Spectral purity		Range	-180° to +180°
Maximum spurious	<-30 dBc	Resolution	0.01°
input		Stability
Residual FM	<20 kHz	30 kHz to 3 GHz	0.05°/° C
Typical settling time1	500 ms (automatic)	3 GHz to 6 GHz	0.20°/° C
	50 ms (manual)	Polar characteristics
Input frequency accuracy requirement1		Range	10 x 10–12to 1000 units full
Manual	-0.5 to 5 MHz		scale
Display resolution	0.001 dB/division	Reference	±500 units
Marker resolution5	0.001 dB
Trace noise
(+5 dBm at test-port, ratio measurement, 3 kHz BW)
Magnitude
300 kHz to 3 GHz	<0.006 dB rms
3 GHz to 6 GHz	<0.010 dB rms
Phase
300 kHz to 3 GHz	<0.038° rms
3 GHz to 6 GHz	<0.070° rms

1.	Typical performance.
2.	Typical below 300 kHz.
3.	The Agilent 8753ES source characteristics and measurement accuracy in this
	mode are dependent on the stability of the external LO source. The RF source
	tracks the LO to maintain a stable IF signal at the R-channel receiver input.
	Degradation in accuracy is negligible when using an Agilent 8642A/B, 8656B,
	or E4432B RF signal generator as the LO source.
4.	See the Agilent 8753ES descriptions and options for a functional description.
	Measurement accuracy is dependent on the stability of the input signal.
5.	Marker resolution for magnitude, phase and delay is dependent upon	13
	measured value. Resolution is limited to five digits.