Agilent Technologies ESG Guía de usuario descargar pdf (Pagina 37)

100

101

Chapter 1 21

Signal Generator Overview

Rear Panel Overview

• 0.5 V

, typical, corresponds to one unit length of the I/Q vector.

•0.69 V

(2.84 dB), typical, maximum crest factor for peaks for π/4 DQPSK with

alpha = 0.5.

•0.71 V

(3.08 dB), typical, maximum crest factor for peaks for π/4 DQPSK with

alpha = 0.35.

• Typically 1 V

p-p

maximum (Option 001 or 002 only).

This female BNC connector is provided only on signal generators with Option 001 or 002. If

you configure your signal generator with Option 1EM, this output is relocated from a BNC to

an SMB connector.

7. COH CARRIER Output Connector

The coherent carrier connector outputs RF that is not modulated with AM, pulse, or I/Q

modulation, but is modulated with FM or

ΦM. The output power is nominally –2 dBm ±5 dB.

The output frequency range is from 249.99900001 MHz to the maximum specified frequency

of your signal generator. If the RF output frequency is below this range, the coherent carrier

output signal will have the following frequency: Frequency of coherent

carrier = (1E9

− Frequency of RF output) in Hz. The damage levels are 20 Vdc and 13 dBm

reverse RF power.

8. Q OUT Connector

The Q OUT connector outputs the analog, quadrature-phase component of I/Q modulation

from the internal baseband generator. The nominal output impedance of this connector is 50

Ω,

DC-coupled. The damage levels are > +2 V and <

−2 V. The DC origin offset is typically

< 10 mV. The output signal levels into a 50

Ω load are as follows: