Tektronix 3066 Data Sheet

Seamless Acquisition for Capture of
Short Duration or Intermittent Events

Analyzes in Frequency, Time and
Modulation Domain

DC to 3 GHz Coverage
Frequency Event Trigger for Acquisition

of Burst or Infrequently Occurring
Signals

Post Capture 1000:1 Zoom Allows
Analysis of Individual Signals After
Wideband Capture

Code Domain Power and
Complementary Cumulative Distribution
Function (CCDF) for IS-95, W-CDMA
Signals

CCDF for Multi-carrier and W-CDMA
Signals

1st, 2nd, and 3rd Generation
Cellular/PCS R&D – Including GSM,
CDMA, IS-136, PDC, W-CDMA

Signature Analysis
Spectrum Monitoring
Settling Time Measurements for

Oscillators and Synthesizers
Phase Hit Capture and Measurement
Debugging of Hardware/Software

Interface Problems

The 3066 and 3086 are DC to 3 GHz real-time spec­trum analyzers that allow the seamless capture of
frequency spectra with spans up to 30 MHz
(5 MHz – 3066). This allows the spectrum of burst
signals, such as those from GSM, IS-136, PDC or par­tial rate CDMA mobile stations, to be easily captured
and examined. Real-time spectrum analyzers take a
very different approach compared to traditional
sweeping spectrum analyzers. Rather than acquiring
one frequency step at a time, the real-time instrument
captures a block of frequencies all at once. Because
the instrument samples these full frames constantly
(rather than waiting for each discrete frequency step
to be measured), the signal can come or go as it
pleases and the real-time spectrum analyzer will
detect the change instantly.

The 12.1 in. color TFT display allows easy viewing
of spectrum, waterfall displays, spectrograms and
digital modulation analysis screens. Constellation
and vector diagrams can be displayed, as well as
frequency, phase, magnitude, I and Q versus time,
for in-depth analysis of digitally modulated signals.
Users can move a marker through the time record
and analyze the modulation at any point. In
particular, signals with symbol rates up to

20.48 Msymbols/sec (3066 – 5.3 Msymbols/sec) may
be analyzed during and after capture. This facilitates
analysis of W-CDMA signals with chip rates up to

16.384 Mcps.

Features and Benefits Applications

3066 • 3086

Real-Time Spectrum Analyzers

®

3066 • 3086 REAL-TIME SPECTRUM ANALYZERS

2

In addition, a frequency mask trigger
allows capture of randomly occurring or
infrequent signals such as intermittent
spurious emissions. If the user is not
interested in the period between trans­mission bursts, the frequency mask trigger
allows capture of the “burst-on” periods,
thus maximizing the number of bursts
that can be captured in memory for subse­quent spectral, time or modulation
analysis. The user can graphically define
the frequency trigger mask; this allows
the trigger condition to be generated by a
particular event in the frequency domain
irrespective of other activity within the
displayed span. This is a major benefit
when the trigger condition is used to cap­ture signals arising from intermittent
spurious or spectral re-growth events.

Option 1S, automatic waveform record­ing, can be used to store multiple memory
blocks to the internal hard drive without
operator intervention. This enables unat­tended monitoring and recording of
transient events for later review.

A 1000:1 zoom capability permits analy­sis to be performed on an individual
signal in a multi-signal environment.

Option 16: IS-95 and W-CDMA
Code Domain Power for
the 3086

CDMA and W-CDMA Base Station devel­opers use code domain power
measurements to verify correct operation
of their designs. BTS amplifier designers
rely upon Complementary Cumulative
Distribution Functions (CCDF) to verify
the input and output amplitude distribu­tions of their test waveforms. When
equipped with options 16 and 20, the
3086 now meets these needs for IS-95 and
W-CDMA designs. The real-time nature of
the 3086 spectrum analyzer brings unique
advantages to this application.

The 3086 with option 16 processes the W­CDMA down-link signals as defined in
“Specifications for W-CDMA Mobile
Communication System Experiment
Version 1.1” and offers extensive analysis
capability including:

Code-domain power

The analyzer measures the relative
power to total power for each channel
with 1024 channels maximum

Time vs. code-domain power

The analyzer measures the relative
power at symbol points for each
channel as a time series

Code-domain power spectrogram

The analyzer measures the code­domain power continuously for
maximum 160 slots (0.1 s) and
displays spectrogram for each slot

Modulation accuracy

The analyzer measures EVM (error
vector magnitude), amplitude error,
phase error, waveform quality, and
origin offset for each channel

For customers who need code domain
analysis of IS-95 base station signals,
option 16 also provides code power mea­surements for IS-95 signals over a 6144
symbol period.

Option 20 CCDF (3066 and

3086) Feature Summary

Option 20 records the statistical nature of
a signal, and plots the probability of
exceeding a measured average value for
the waveform. A large amount of data is
collected in the memory of the 3086, and
Complementary Cumulative Distribution
Function (CCDF) can be shown over
selected periods of time to determine the
effect of code selection or multi-carrier
additions on the peak-to-average ratio of
the waveform. Base station amplifier
designers use this information to judge
the distortion performance of their prod­ucts. The rapid changes that occur in base
station power outputs require a real-time
bandwidth higher than the occupied
bandwidth of the signals measured. The
3086 provides unique capability due to
its 30 MHz real-time bandwidth, allowing
CCDF measurements on up to 6 W-CDMA
carriers simultaneously. In the 3066,
CCDF measurements over a 5 MHz real­time bandwidth is possible.

Option 15: IS-95 Code Domain
Power for the 3066 Spectrum
Analyzer

OPTION 15 (3066) FEATURE SUMMARY:

Option 15 offers the measurement func­tions listed below:

Code-domain power

Measures the relative code power to
total power for each channel

Code-domain power vs. Time
(codegram)

The analyzer measures the code­domain power continuously for 6144
symbols (0.32 s) maximum and dis­plays spectrogram for each symbol

Modulation accuracy and vector
display

Measures EVM (error vector magni­tude), amplitude error, phase error,
waveform quality, and origin offset for
all signals

3086

3066 • 3086 REAL-TIME SPECTRUM ANALYZERS

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INPUT/MEMORY MODE RELATED

Input Mode – RF, Baseband; Wideband,
IQ (3086 only).
Input Connector – N type (R F, Baseband,
Wideband), BNC type (IQ).

Input Impedance – 50 Ω.
VSWR (N type) – 1.5 (Reference Level

≥-20 dBm).

Acquisition Mode – Roll, Block.
Acquisition Memory Size – 16 Mbytes.
Acquisition Memory Management –

RF, Baseband Input.

Memory Mode: Frequency, Dual, Zoom.
FFT Points: 1024, 256 (Frequency Mode).
FFT Window: Rectangular, Hamming,
Blackman-Harris.
Block Size:

1 to 16,000 Frames (Frequency Mode, 256 pt).
1 to 4,000 Frames (Frequency Mode, 1024 pt).
1 to 2,000 Frames (Dual, Zoom Mode).

Minimum Frame Update Time:

20 µs (Frequency Mode, 256 pt).
80 µs (Frequency Mode, 1024pt).
160µs (Dual, Zoom Mode).

Wideband, IQ Input (3086 only) –

Memory Mode: Zoom.
FFT Points: 1024.
FFT Window: Rectangular, Hamming,
Blackman-Harris.
Block Size: 1 to 2,000 Frames.
Minimum Frame: 25 µs.

Frequency Standard Related

Characteristic Description

Reference frequency 10M Hz
Initial frequency tolerance ± 0.1 ppm
Frequency stability

Aging ±0.0005 ppm/day
Temperature ±0.002 ppm (5 to 40°C)

RF INPUT RELATED

Frequency –

Range: 10MHz to 3 GHz.
Center Frequency Settability: 0.1Hz.
Span: 100Hz to 3 GHz.
Vector Span: 100 Hz to 6 MHz.
Real-time Span: 100Hz to 5 MHz.
Number of Bins:

641 (100Hz to 2 MHz span).
801 (5MHz span).
481 (6MHz span).

Span/6250 + 1 (span ≥ 10 MHz).
Spectrum Purity: –100 dBc/Hz (1 GHz CF,
200 kHz span, 0 dBm ref, 10 kHz offset).
Residual FM: 3 Hz p-p.

Amplitude –

Reference Level: –50 dBm to +30 dBm.
Maximum Nondestructive Input Power: +30 dBm.
Self Gain-Calibration Accuracy: ± 1.0 dB at
25 MHz within 5°C temperature variation.
Flatness: ±2.0 dB (10 MHz to 3 GHz).
Input Equivalent Noise: –140 dBm/Hz.
3rd Order Distortion: –65 dBc (–10 dBfs input, at
1 GHz).
Residual Response: –70 dBfs (0 dBm ref, 5 MHz
span).
Image Suppression: 70 dB.
Spurious Free Dynamic Range (1 GHz CF, 0 dBm
REF, sinusoidal signal at the center, spur apart
more than 10kHz from the signal):

80 dB at 50 kHz span.
75 dB at 100kHz span.
70 dB at 200 kHz and 500 kHz span.
65 dB at 1/2/5 MHz span.

BASEBAND INPUT RELATED

Frequency –

Range: DC to 10MHz.
Center Frequency Settability: 0.1Hz.
Span: 100Hz to 10 MHz.
Vector Span: 100 Hz to 6 MHz.
Real-time Span: 100Hz to 5 MHz.
Number of Bins:

641 (100Hz to 2 MHz span).
801 (5MHz and 10 MHz span).

481 (6MHz span).
Spectrum Purity: –100 dBc/Hz (5 MHz CF,
200 kHz span, 0 dBm ref, 10 kHz offset).
Residual FM: 2 Hz p-p.

Amplitude –

Reference Level: –30 dBm to +30 dBm.
Maximum Nondestructive Input Power: +30 dBm.
Reference Level Accuracy: ±0.5 dB at 5MHz.
Flatness: ±1.0 dB (1 MHz to 10 MHz).
Input Equivalent Noise: –150dBm/Hz.
2nd Harmonic Distortion: –70 dBc (at 4.5 M Hz).
DC Offset: –40 dBfs.
Residual Response: –70 dBfs (5 M Hz CF, 5 MHz
span, 0 dBm ref).
Alias Suppression: 65 dB.
Spurious Free Dynamic Range (5 MHz CF, 0 dBm
ref, sinusoidal signal at the center, spur apart
more than 10kHz from the signal):

85 dB at 50 kHz span.

80 dB at 100 kHz span.

75 dB at 200 kHz span.

70 dB at 500 kHz span.

70 dB at 1/2/5MHz span.

WIDEBAN D INPUT RELATED
(3086 ONLY)

Frequency –

Range: 50 MHz to 3 G Hz.
Center Frequency Settability: 0.1Hz.
Span: 10MHz, 20 MHz, 30 MHz.
Vector Span: 10 MHz, 20 MHz, 30 MHz.
Number of Bins:

501 (10MHz and 20 MHz span).
751 (30 MHz span).

Amplitude –

Reference Level: –50 dBm to +30 dBm.
Maximum Nondestructive Input Power: +30 dBm.
Flatness within Span: ±1 dB (25°C ± 5°C).
Input Equivalent Noise: –140 dBm/Hz.
3rd Order Distortion: –65 dBc (–10 dBfs input, at
1 GHz).
Residual Response: –60 dBfs (0 dBm ref, 30MHz
span).
Image Suppression: 70 dB.
Spurious Free Dynamic Range (1 GHz CF, 0 dBm
ref, sinusoidal signal at the center, spur apart
more than 500 kHz from the signal):

65 dB at 10 MHz span.
60 dB at 20 MHz and 30 MHz span.

IQ INPUT RELATED (3086 ONLY)

Frequency –

Range: ±15 MHz.
Span: 10MHz, 20 MHz, 30 MHz.
Vector Span: 10 MHz, 20 MHz, 30 MHz.
Number of Bins:

501 (10MHz and 20 MHz span).
751 (30 MHz span).

Amplitude –

Reference Level: 100mV (amplitude of IQ signal).
Maximum Nondestructive Input Power: ±5 V.
Flatness within Span: ±0.5 dB (25°C ± 5°C).
Residual Response: –60 dBfs (30 MHz span).
Alias Suppression: 55 dB.
Spurious free dynamic range (1 GHz CF, 0 dBm
ref, sinusoidal signal at the center, spur apart
more than 500 kHz from the signal):

65 dB at 10 MHz span.
60 dB at 20 MHz and 30 MHz span.

Characteristics