Agilent E4438C ESG Vector Signal Generator - Advanced Test ...

Specifications for Analog ModulationExternal burst envelopeInput voltageOn/off ratio 1Rise/fall time 1RF onRF offLinear controlrange0 V–1.0 V0 to –1 VCondition: V inbelow –1.05 V≤ 4 GHz> 4 GHzCondition: With rectangular input(< 2 µs)Minimum burst repetition frequency 1ALC onALC off(10 Hz)DCInput port External 1Input impedance50 Ω, nominal> 75 dB(> 64 dB)Composite modulationAM, FM, and ΦM each consist of two modulation paths which are summedinternally for composite modulation. The modulation sources may be any twoof the following: Internal, External 1, External 2.Simultaneous modulationMultiple modulation types may be simultaneously enabled. For example,W-CDMA, AM, and FM can run concurrently and all will affect the output RF.This is useful for simulating signal impairments. There are some exceptions:FM and FM cannot be combined; AM and Burst envelope cannot be combined;Wideband AM and internal I/Q cannot be combined. Two modulation typescannot be generated simultaneously by the same modulation source.1. Parentheses denote typical performance.16