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Specifications for i/q characteristics – Atec Agilent-E4438C User Manual

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Clock

Sample rate

1 Hz to 100 MHz

Resolution 0.001

Hz

Accuracy

Same as timebase +2

-42

[in non-integer applications]

Baseband filters

40 MHz

used for spur reduction

2.1 MHz

used for ACPR reduction

Through

used for maximum bandwidth

Reconstruction filter: [fixed]

50 MHz

[used for all symbol rates]

Baseband spectral purity

1

[full scale sinewave]

Harmonic distortion

100 kHz to 2 MHz

(< –65 dBc)

Phase noise

(< –127 dBc/Hz)

[baseband output of 10 MHz sinewave at 20 kHz offset]

IM performance

(< –74 dB)

[two sinewaves at 950 kHz and 1050 kHz at baseband]

Triggers

Types

Continuous, single, gated, segment advance

Source

Trigger key, external, remote [LAN, GPIB, RS-232]

External polarity

Negative, positive

External delay time

10 ns to 40 sec plus latency

External delay resolution

10 ns

Markers
[Markers are defined in a segment during the waveform generation process, or from the
ESG front panel. A marker can also be tied to the RF blanking feature of the ESG.]

Marker polarity

Negative, positive

Number of markers

4

Multicarrier

Number of carriers

Up to 100 [limited by a max bandwidth of 80 MHz

depending on symbol rate and modulation type]

Frequency offset [per carrier]

–40 MHz to +40 MHz

Power offset [per carrier]

0 dB to –40 dB

Modulation

PSK

BPSK, QPSK, OQPSK,

π/4DQPSK, 8PSK,

16PSK, D8PSK

QAM

4, 16, 32, 64, 128, 256

FSK

Selectable: 2, 4, 8, 16

MSK
ASK

Data

Random ONLY

Multitone

Number of tones

2 to 64, with selectable on/off state per tone

Frequency spacing

100 Hz to 80 MHz

Phase [per tone]

Fixed or random

Specifications for I/Q Characteristics

1. Parentheses denote typical performance.