2-13
8753ET Specifications and Characteristics
Instrument Specifications
Table 2-10 Test Port Input
8753ET Test Port Input
Description Specification Supplemental Information
Frequency Offset Operation
a
Frequency Range
Standard 300 kHz to 3 GHz
Option 006 300 kHz to 6 GHz
R Channel Input Requirements
300 kHz to 3 GHz 0 to −35 dBm
3 GHz to 6 GHz 0 to −30 dBm
LO Spectral Purity and
Accuracy
Maximum Spurious Input < −25 dBc, typ.
Residual FM < 20 kHz, typ.
Frequency Accuracy −1 to +1 MHz of nominal
frequency, typ.
External Source Mode
b
Frequency Range at − 25 dBm R channel power
level
Standard 300 kHz to 3 GHz
Option 006 300 kHz to 6 GHz
R Input Requirements
Power Level 0 to −25 dBm, typ.
R Input Spectral Purity
Requirement
Maximum Spurious Input < −30 dBc, typ.
Residual FM < 20 kHz, typ.
Settling Time
Auto 500 ms, typ.
Manual 50 ms, typ.
Frequency Readout Accuracy 0.1%, auto, typ.
Input Frequency Accuracy
Requirement
Manual −0.5 to 5 MHz, typ.
a. The RF source characteristics 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.
b. Measurement accuracy is dependent on the stability of the input signal.