HP 70427A User Manual page 210

RF Input Supplemental Characteristics
Input Power:
<−30 dBm with IF power output reduction
❍
Input Impedance:
50 Ω
❍
SWR:
≥5 dB input attenuation: 2:1
❍
Noise Figure:
20 dB
❍
Spectral Purity:
For input signals <0 dBm, noise at offsets ≥1 kHz may increase by 1
❍
dB for every 1 dB of input power reduction.
Conversion Loss:
< 15 dB
❍
Mixer Linearity:
±0.1 dB for -10 dBm input level
❍
±0.4 dB for -5 dBm input level
❍
LO power control in low-noise mode
❍
IF Output
Frequency Range:
5 MHz to 1200 MHz
❍
Mixing Spurious (mixer input level -5dBm):
< 6 GHz
❍
<− 50 dBc except for those listed in
▲
> 6 GHz
❍
<− 70 dBc
▲
HP 71707A/70427A Specifications
Table 9-4 on page
HP 70427A/HP 70428A User's Guide 9-9
Technical Data
9-10.