2820A
RF Vector Signal Analyzer
1.888.KEITHLEY
The Model 2820A RF Vector Signal Analyzer provides extensive and unique capabilities for signal
analysis of devices that use both existing wireless standards and new wide bandwidth, complex
modulation, high throughput wireless communication standards. The Model 2820A features a 40MHz
signal capture bandwidth and a DSP-based software-defined radio (SDR) architecture that give it the
flexibility to easily adapt to new wireless technologies. The SDR-based design maximizes the life of
the Model 2820A and provides an ongoing return on investment compared with more traditional
signal analysis instruments.
Unique capabilities substantially reduce signal
acquisition and measurement times
In addition to allowing both manual and automated control through the traditional built-in
­microprocessor instrument controller, the Model 2820A offers the ability to bypass the internal
controller and permits a PC to act as the
instrument controller. This enables transfer
Applications
of I-Q data over a USB at data rates exceeding
100Mbits/second and is essential for investigating
• R&D and production testing of:
channel sounding techniques and for produc–Wireless handsets
tion testing of wireless handset devices. The
fast data transfer combined with the ability to
–Wireless modules and
post-process continuous blocks of data bursts
sub-assemblies
enables EDGE Evolution demodulation analysis
– Femtocells and picocells
(including EVM, channel power, and time mask)
in under 10ms and 20MHz bandwidth WiMAX
–Wireless chipsets
demodulation to be performed in only 80ms.
–Wireless infrastructure
Furthermore, fast WCDMA Adjacent Channel
equipment
Leakage Ratio (ACLR) measurements can be
done in 2.3ms.
• Wireless communication student
laboratories
(U.S. only)
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Superior performance for testing high
throughput, wide bandwidth wireless
standards
• 40MHz measurement signal
bandwidth
• <–140dBc/Hz phase noise at a
300kHz offset with a 2GHz carrier
• Displayed Average Noise Level as
low as –150dBm/Hz with built-in
pre-amp
• ±0.15dB amplitude repeatability
• WLAN 802.11n EVM floor as low as
–48dBc
High quality measurements not
compromised by high speed testing
• Use the Model 2820A-UPN UltraLow Phase Noise option to switch
between maximum dynamic
range for ORFS, EVM, and ACPR
measurements or select maximum
tuning speed
High speed for the lowest possible
test times
• Frequency tuning as fast as 250μs
• >100Mb/s I-Q data transfer rate
• EDGE Evolution EVM, channel
power, and time mask
measurements as fast as 9.2ms
• WCDMA Adjacent Channel Leakage
Ratio measurements as fast as
2.3ms
Test MIMO devices with low
instrument uncertainty
• ≤250ps synchronization jitter for
connecting multiple Model 2820As
in an HSPA+, WLAN 802.11n, or
WiMAX 802.16e Wave 2 MIMO test
system
Uncompromising operating versatility
• Dual mode user interface with
a traditional instrument control
panel or a unique PC-based
desktop control panel
• Advanced PC connectivity: GPIB,
USB, and LAN with enhanced LXI
Class C performance for remote
instrument monitoring
• Custom measurement
infrastructure enables the creation
and loading of special user-defined
measurements into the Model
2820A’s DSP-based firmware
• Demodulation, signal analysis
options for GSM, EDGE, EDGE
Evolution, WCDMA, cdma2000,
HSPA+, WLAN, and WiMAX
transmissions
Signal analyzer for Side
RF communications
Text
testing
400MHz to 4GHz or 6GHz
2820A
RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
Ordering Information
Signal analyzer for Side
RF communications
Text
testing
2820A
RF Vector Signal Analyzer
Configuration Choices (Specify
one from each group in the format
2820A-xxx-yy-zzz)
RF Connector Location (-xxx):
-SPI, -RF, or -RP for Single Port
Interface, Front Panel, or Rear Panel
Use Configuration (-yy):
-BT or -RK for Bench Top
or Rack Mount
Frequency Range (-zzz):
-004 400MHz to 4GHz
-006 400MHz to 6GHz
Signal Personality Options
2800-80211: WLAN 810.11a, b, g, j, and
n-SISO
2800-80216-E: 802.16e WiMAX and WiBro
The Model 2820A’s high data transfer rate under PC control and its I-Q memory caching that allows
either analysis of consecutive data blocks or analysis of a selected set of the data blocks gives you
the flexibility you need to create the most efficient test protocol. The PC desktop control panel and
the I-Q caching enable fast sequence testing for calibration of mobile device transmitters and mobile
device receivers. A mobile phone manufacturer can configure a transmitter to output a staircase of
power levels or a set of power bursts using multiple time slots. The Model 2820A can capture either
all of the waveform samples or compute a set of measurements, transfer information directly to the
PC over the high speed USB, and use the high speed processing power of the PC to generate a calibration table. This offers a significant test time savings compared with test methodologies that output
normal transmission bursts.
To enable fast calibration of transmitters over a device’s complete operating band, the Model 2820A
can tune to different frequencies in an extremely fast 250µs. That significantly reduces total transmitter test time when a device operates over multiple frequency bands and multiple power levels.
It is not unusual for a multi-band device to calibrate power at more than 300 points. The Model
2820A’s frequency tuning time is the lowest time of any other signal analyzer. Furthermore, using
the Model 2820A’s channel power list mode, power levels can be measured and transferred to the PC
acting as the instrument’s control processor in as little as 100µs per point. The combination of the
fast frequency tuning time, desktop control panel, and high speed USB makes the Model 2820A the
industry’s fastest transmitter calibrator and substantially reduces production test time and test costs.
Instrument
Control Panel
2800-CDMA-R: cdma2000 Reverse Link
Windows CE
2800-DIG: Flexible Digital Modulation
2800-EDGE2: EDGE Evolution
2800-GSM: GSM, GPRS, and EDGE
2800-HSPA-D: WCDMA HSPA Downlink
Personality
Internal
Controller
External PC
Interface Bus
(LAN, USB, or GPIB via SCPI
LXI Class C)
Graphics Display
and User Interface
Desktop
Control Panel
Waveform
RAM
2800-HSPA-U: WCDMA HSPA Uplink
Personality
DSP
DS P
500MHz
2800-WCDMA-D: W-CDMA FDD downlink
Graphics Display
and User Interface
2800-WCDMA-U: W-CDMA FDD uplink
Contact your local Keithley sales
representative for the latest information
on new personalities and software.
Optional Software
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290101: SignalMeister™ RF
Communications Test Toolkit
Figure 1. The Model 2820A’s signal processing architecture provides maximum throughput
under a variety of test conditions. The Model 2820A offers the unique capability of an instrument control panel with conventional, embedded processor technology and a remote desktop
control panel in which a PC performs all the functions of the embedded host processor.
ACCESSORIES AVAILABLE
290101-WiMAX WiMAX 802.16e
Wave 2 Analysis
2890-BT
Bench Top Kit
2890-RK
Rack Mount Kit
2910-ADAPTER-KIT Cable and Adapter Accessory Kit
290101-WLAN WLAN 802.11a, b, g, j, n
Analysis
Cables/Adapters
7007-1
Shielded IEEE-488 Cable, 1m (3.3 ft)
7007-2
Shielded IEEE-488 Cable, 2m (6.6 ft)
USB-B-3
USB Cable, Type A to Type B, 3m (10ft)
Accessories Supplied
AC power cable, printed Quick Start
Guide, CD-ROM containing 2800
Desktop Control Panel Software, 2820A
VSA System Help, utility programs,
and PDF files (also available on-line at
www.keithley.com)
1.888.KEITHLEY
Windows-XP
DSP Hardware
Control from PC
or Host Processor
RF
Hardware
2800-TDSCDMA: TD-SCDMA Signal
Analysis Personality
Desktop
Controller
Other
KPCI-488LPA
KPXI-488
KUSB-488A
services AVAILABLE
2820A-EW
1-year factory warranty
1-year extended to 3 years from date of shipment
2820A-3Y-EW
2820A-5Y-EW 1-year extended to 5 years from date of shipment
C/2820-3Y-STD 3 calibrations within 3 years of purchase
C/2820A-3Y-DATA3 (Z– 540-1 compliant) calibrations within
3 years of purchase*
* Not available in all countries
IEEE-488 Interface/Controller for the PCI Bus
IEEE-488 Interface Board for the PXI Bus
IEEE-488 USB-to-GPIB Interface Adapter
(U.S. only)
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2820A
RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
Cost-effectively perform modulation quality analysis on
an extensive set of wireless communication standards
Utilize the signal analysis personality options to demodulate signals based
on any of the major worldwide wireless communication standards. Test
GSM, EDGE, EDGE Evolution, WCDMA, cdma2000, 802.11a, b, g, j, n
WLAN, 802.16e Mobile WiMAX, and HSPA+ signals. A Model 2820A can
have as few as one or all the signal analysis personality options. A robust
set of measurements, instrument settings, and test limits are customized
for each of the various standards. The pre-configured measurement packages save instrument configuration time and minimize the potential for
operator error. Furthermore, default limits on all measurements are preprogrammed to conform to the standards’ conformance test documents.
Depending on the standard, measurements include channel power, EVM,
time mask, ACPR, frequency error, I-Q offset, and many others.
To maximize the investment in the Model 2820A, the signal analysis
personalities are transportable between instruments electronically. Thus,
a minimum number of personalities can be purchased and shared among
instruments to provide production test flexibility at the lowest cost.
Test MIMO Devices with Low Instrument Uncertainty
Each Model 2820A is designed to be synchronized to other Model 2820As,
enabling the capture of multiple transmission streams with an extremely
high level of synchronization. Signal acquisition synchronization jitter
is ≤250ps, ensuring that time delays between signal streams are due to
transmitter issues or channel conditions and not due to instrument latency.
MIMO device designs can be tested during development with a high degree
of confidence that the Model 2820A is not contributing offset errors to the
multiple signal stream acquisitions.
Figure 2. PC display showing the Model 2820A desktop control panel
software. This enables the PC to interface directly with the signal
acquisition and computing hardware so that the Model 2820A can
quickly transfer large amounts of I-Q data to the PC for high speed
signal processing.
High quality measurements not
compromised by high speed testing
While the Model 2820A has been optimized for high speed test performance, it also delivers excellent measurement performance. Superior
phase noise performance with the Model 2820A-UPN Ultra Low Phase
Noise option provides a –42dB EVM floor for a 40MHz bandwidth 802.11n
signal at 5.6GHz. Even without the enhanced phase noise option, the EVM
floor is –40dB. Similarly, WiMAX relative constellation error (RCE) floor
levels exceed –42dB to 3.5GHz. The dynamic range of EDGE Evolution
Output RF Frequency Spectrum (ORFS) due to switching is 80dBc at a
1800kHz offset from the carrier.
With a 40MHz signal acquisition bandwidth as a standard feature of the
instrument, the Model 2820A can capture a complete 40MHz WLAN or
WiMAX signal in a single acquisition, eliminating any need to make multiple signal captures and to concatenate signal segments and avoiding the
resulting degradation in measurement accuracy. Also included as a standard part of the signal analyzer is the pre-amp, which lowers the Model
2820A’s noise floor less than –150dBc/Hz.
1.888.KEITHLEY
Keithley MIMO configurations that include Model 2820A instruments can
test MIMO devices with up to eight antennas. System synchronization is
ensured by the Model 2895 MIMO Synchronization Unit. This instrument
distributes a common local oscillator, a common clock signal, and precise
trigger signals to all the system’s signal analyzers.
Using Keithley’s SignalMeister™ RF Communications Test Toolkit software
and Model 2920 Vector Signal Generators, MIMO signals can be both easily
generated and analyzed. Furthermore, all the synchronization, designation
of master and slave units, and control of multiple instruments is managed
by the SignalMeister software and transparent to the user. SignalMeister
allows the generation of MIMO WLAN, WiMAX, and HSPA+ signals for
testing MIMO receivers as well as for analysis of MIMO transmitters. A
Keithley MIMO system with SignalMeister software makes it very easy to
conduct multi-antenna research and test MIMO device designs. Any size
MIMO test configuration can be assembled and re-configured.
Keithley MIMO test sytems provide superior test performance, system flexibility, and unparalleled ease of use that are unmatched in the industry.
(U.S. only)
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Signal analyzer for Side
RF communications
Text
testing
The Model 2820A measures channel power on single-carrier standards
with ±0.6dB typical accuracy and multi-carrier standards signals, such as
WLAN and WiMAX, with ±0.85dB typical accuracy. These accuracy levels
combined with ±0.15dB amplitude repeatability enable test engineers to
design test protocols with the tight tolerances needed to ship the highest
quality products.
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State-of-the-art, 500MHz-DSP processing technology performs internal
calculations and uploads results to a PC test system controller. When
PC-based data analysis is required, the desktop control panel operating
mode enables ultra-fast transfer of I-Q data at an upload rate in excess of
100Mb/sec. Control can be switched back and forth for optimizing production test time based on data acquisition requirements during different
test segments.
2820A
RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
Signal analyzer for Side
RF communications
Text
testing
2920 Vector Signal Generator
Up to ×8
2895 MIMO Synchronization Unit
Figure 3. Easily configure any size MIMO
system and obtain excellent signal sourcing
synchronization and signal acquisition
synchronization for testing MIMO devices.
SignalMeister software makes creating a
MIMO test protocol extremely easy.
2820A Vector Signal Analyzer
Up to ×8
2895 MIMO Synchronization Unit
290101
SignalMeister
Signal Generation
and Analysis
Software
Access Point
Under Test
Figure 5. SignalMeister software creates a wide range of computations
and plots for MIMO analyses. Display selections are easily arranged
to create a desired presentation. The analysis shown is on an 802.11n
transmission.
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Figure 4. Use SignalMeister software to create two signal streams
with transmitter impairments to test a 802.11n WLAN MIMO receiver.
Similarly, SignalMeister can program two analyzers to acquire output
streams from a MIMO transmitter.
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2820A
RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
Because of a firmware architecture that allows integration of measurement
routines into the instrument’s operating code, special measurements such
as the OFDM gain compression measurement can be easily programmed
and added to the Model 2820A. Thus, I-Q data can be captured and
manipulated in unique ways to address special requirements. Keithley
application specialists can help design custom measurements to obtain
even more value from a Model 2820A.
Extensive flexibility for a wide range of applications in
research and education, as well as production test
In addition to its sophisticated signal analysis capability, the Model 2820A
has basic spectrum analysis modes for measuring basic parameters of
RF signals.
– The Spectrum Analysis function displays the RF power vs. frequency
of all signals within a user-defined frequency span. A wide selection of
resolution bandwidths and filter types are available to analyze
the signal’s spectral characteristics. Traditional markers and marker
functions are used to measure the RF signal’s parameters.
– The ACPR (Adjacent Channel Power Ratio) function measures the
channel power of the primary signal along with that of adjacent
channels and next-adjacent channels. The channel frequency, channel
bandwidth, test limits, and adjacent channels are user-definable. Each
channel frequency is measured separately for high accuracy. When it’s
desirable to reduce test times, users can also choose not to measure the
adjacent and next-adjacent channels.
– The Channel Power List function allows setting up a pre-defined list
of frequencies, measurement bandwidths, and measurement times.
Triggering is commonly used to synchronize the list with other instruments in a system.
– Using the Zero Span function, the analyzer becomes a fixed-tuned
receiver to capture and analyze signals up to 40MHz bandwidth at a
fixed carrier frequency. An RF signal is demodulated and the signal
power vs. time is displayed. A wide selection of bandwidths and
filter types are available and an assortment of triggers can be used
to ­capture the signal easily.
Signal analyzer for Side
RF communications
Text
testing
Create specialized measurements
Quantifying power amplifier gain compression when amplifying high
peak-to-average ratio, multi-carrier orthogonal frequency division multiplex
(OFDM) signals is very difficult. Constellation displays and complementary
cumulative distribution function (CCDF) measurements do not clearly or
directly provide information on gain compression. Keithley has developed
a technique to measure and directly display amplifier gain compression
when transmitting OFDM signals. This measurement is one example of the
extensive measurement capability of the Model 2820A.
Figure 6. Clearly visualize the gain compression of an OFDM signal
using Keithley’s unique measurement and display technique.
Figure 8. The Model 2820A’s custom measurement infrastructure is
used to analyze the multi-carrier ACPR measurement shown above.
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The Model 2820A is excellent for university wireless communication laboratories. The minimum number of buttons makes the instrument more
user friendly and less intimidating for students and even occasional users.
A very intuitive graphical user interface with a Windows CE operating
system enables any computer user to quickly learn to navigate through
the various display windows. Manual operation of the instrument can be
done using the touch screen display or a USB mouse. The Model 2820A
has a VGA output so that its display can be projected on a classroom
projector. Alternatively, an instructor can use the desktop control panel,
(U.S. only)
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Figure 8. Use the Adjacent Channel Power Ratio function to define the
test parameters and the test limits for non-standards-based signals.
2820A
RF Vector Signal Analyzer
Signal analyzer for RF communications testing
400MHz to 4GHz or 6GHz
to fully illustrate instrument operation and display results on a projection
screen. Furthermore, the LAN LXI Class C interface enables students and
an instructor to access the front panel via the instrument’s LXI web page.
The instrument can even be controlled through its browser. In addition,
researchers and test engineers can access the instrument over the Internet
from a remote location for monitoring progress of an experiment or for
production line troubleshooting.
Production test engineers have the flexibility to switch between the instrument control panel and the PC-based desktop control panel depending on
their requirements for handling varying amounts of data. Furthermore,
with the 2820A-UPN Low Phase Noise Option, test engineers can switch
between low phase noise for maximum dynamic range-specific measurements and fast frequency tuning for speed-optimized measurements.
Production test engineers have the option of using a number of configurations of the instrument to optimize test system performance and simplify
test system connections. The RF input connector can be either on the
front or rear of the instrument to minimize RF cable lengths and system
pathway loss. In addition, the -SPI versions of the Model 2820A allow it
to connect directly with a single port wireless device to provide both RF
sourcing and RF measurement without requiring switching between the
measurement devices and the device-under-test. The -SPI option includes
a broadband coupler integrated into the Model 2820A. An RF source connects to the Model 2820A and the Model 2820A connects directly to the
DUT. The integrated coupler’s path losses are fully calibrated as part of the
Model 2820A’s factory calibration so that additional test system calibration
procedures, required if an external coupler is used, are not needed. See
Figure 9.
The Model 2820A Vector Signal Analyzer can perform an extensive set of
RF measurements and address a wide range of applications.
Rear-panel
RF
Series 2900 VSG
Rear-panel
RF
To
measurement
circuitry
Broadband
Coupler
Model 2820A VSA
Transceiver under test
Figure 9. (Left) Connect directly to a transceiver or mobile handset without switching using the -SPI version of the Model 2820A, which features a
built–in broadband coupler that is fully calibrated at the Model 2820A’s input terminal. (Right) The Channel Power List mode captures transmitter
declining-power ramps at multiple frequencies for fast transmitter calibrations of mobile phone handsets.
Series 2800 VSA
Femtocell
PC
LAN
CPU
WCDMA
Transceiver
LAN
TX
RX
Frequency
and Timing
References
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Master Clock
GSM
Receiver
Ext
RF
Input
Series 2900 VSA
RF
Out
RX
10MHz
Trig In
Ext
System 46 RF/Microwave Switch System
Figure 10. (Left) Test femtocells and access points that operate on multiple standards. Keithley vector signal analyzers and vector signal
generators can quickly switch between standards for fast testing of all access point functionality. (Right) Example analysis of an access point
transmitting an HSPA+ signal.
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(U.S. only)
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2820A
RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
Frequency range: 2820-004: 400MHz to 4.0GHz 1.
2820-006: 400MHz to 6.0GHz 2.
Frequency setting resolution: 0.1Hz.
Frequency accuracy: Same as frequency reference +
synthesizer resolution term 3.
Frequency Switching Speed 4: 250µs.
2820A-UPN: 1.05ms.
INTERNAL FREQUENCY REFERENCE
Aging rate: ≤1ppm/year.
Temperature stability: ≤0.2ppm 5 (characteristic).
FREQUENCY REFERENCE OUTPUT
Impedance: 50W (characteristic), AC coupled.
Reference output signal: 10MHz, +7dBm ±3dB
(characteristic).
EXTERNAL FREQUENCY REFERENCE INPUT
Frequency Lock Range:
Hardware Lock Mode 6: 10MHz ±10Hz (1ppm) input
frequency lock range.
Variable Input Frequency Mode: 1 to 60MHz 7.
Amplitude: Lock Range: –3 to +15dBm 8.
Impedance: 50W (characteristic).
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Spectrum Analysis Amplitude 16
Maximum safe input power: +35dBm.
Maximum safe DC voltage: ±50VDC.
Absolute accuracy (typical) 17
325MHz to 400MHz: 0.2dB (characteristic).
400MHz ≤ Freq ≤ 2000MHz: ±0.6 (±0.2) dB.
2,000MHz < Freq ≤ 6,000MHz: ±0.8 (±0.3) dB.
6,000MHz < Freq ≤ 6,500MHz: ±5.0dB (characteristic).
Ref level accuracy (referenced to 0dBm):
+10 to –75dBm: ±0.2dB.
–75 to –100dBm: ±0.6dB.
Display scale fidelity 18: ±0.2dB.
Attenuator accuracy 19:
Frequency <2.5GHz:
±0.1dB for 5 through 20dB attenuator settings.
±0.15dB for >20dB attenuator setting.
Frequency ≥2.5GHz:
±0.1dB for 5 through 10dB attenuator settings.
±0.2dB for 15 through 25dB attenuator settings.
±0.25dB for 30dB attenuator setting
Amplitude repeatability 20: ±0.15dB (±0.07dB typical).
Amplitude change due to preamp on: ±0.2dB
(±0.15dB typical).
Fcarrier = 1000MHz Phase Noise
-UPN enabled
-UPN disabled or not present
–65
–85
–105
–125
–145
–165
0.01
0.1
1
10
100
A
G R E A T E R
1000
10000
100000
Offset Frequency (kHz)
Fcarrier = 2000MHz Phase Noise
-UPN enabled
-UPN disabled or not present
–65
–85
–105
–125
–145
–165
0.01
0.1
1
10
100
1000
10000
100000
Offset Frequency (kHz)
Fcarrier = 3000MHz Phase Noise
-UPN enabled
-UPN disabled or not present
–65
–85
–105
–125
–145
–165
0.01
0.1
1
10
100
M E A S U R E
1000
Offset Frequency (kHz)
(U.S. only)
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Model
Model
2820A
Side
specifications
specifications
Text
Frequency
Standard and Option 2820A UPN
Phase Noise
O F
C O N F I D E N C E
10000
100000
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Note: All items are specifications unless otherwise noted.
Spurious and residual responses
TOI (referred to the RF input, two 0dBm input signals and
reference level = 0dBm):
F < 2325MHz = +35dBm (characteristic).
F ≥ 2325MHz = +34dBm (characteristic).
SOI (referred to the RF input, 0dBm input signals and
reference level = 0dBm): +50dBm (characteristic).
Residuals (reference level setting ≤–40dBm), Pre-Amp
On: ≤–95dBm.
LO related spurs: ≤–65dBc.
SSBB Phase Noise (dBc/Hz)
Optional Vector Signal Analysis Modes
• GSM-GPRS-EDGE
• EDGE Evolution
• cdmaOne–cdma2000
• W-CDMA FDD Uplink (mobile phone transmitter signals)
• W-CDMA FDD Downlink (base station transmitter signals)
• 802.11a, b, g, j, and n WLAN (SISO signals)
• 802.16e-2005 WiMAX (SISO signals)
• Generic FSK and PSK signals
• HSPA and HSPA+
Frequency span: 2820-004: 200Hz to 3.6GHz 8. 2820-006:
200Hz to 5.6GHz 9. Zero span mode available.
Sweep time settings in zero span mode: 1µs to 30s 10.
Sweep modes: Continuous, single.
IF bandwidth 11:
Relative Flatness Over 20MHz: ±1.0dB (typical).
Relative Flatness Over 4MHz: ±0.5dB (typical).
3dB BW: >30MHz (typical).
6dB BW: >38MHz (typical).
Resolution bandwidths: 1Hz to 3MHz (ENBW) with 1Hz
resolution for spans >0Hz 12.
Resolution bandwidth filters (1Hz Resolution) 13:
Brickwall: 10Hz to 35MHz, flat BW 14.
Root Raised Cosine α = 0.22: 10Hz to 28MHz, 3dB BW.
Gaussian: 10Hz to 7MHz, 3dB BW.
5 Pole Synchronously Tuned: 10Hz to 2.3MHz, 3dB BW.
4 Pole Synchronously Tuned: 10Hz to 1.75MHz, 3dB BW.
Amplitude:
Reference Level Range Setting: +40dBm to –170dBm.
Scale Settings: Manual: 0.1dB/division to 40dB/division.
Pre-amplifier: On, off.
400MHz to 2.5GHz (Char gain 15dB).
2.5GHz to 4.0GHz (Char gain 20dB).
4.0GHz to 6.0GHz (Char gain 18dB).
Display:
Detection Modes: Normal, maximum, minimum, sample,
power average, power average + noise correction.
Trace Hold Displays: Normal, max hold, min hold,
min/max hold.
Averaging: 1–1,000 traces 15. Modes: Log, power, log group,
power group, max group, min group, min/max group.
Markers: 4 independent markers, each with a delta marker,
normal and peak modes.
Marker Amplitude Resolution: 0.01dB from front panel,
0.001dB via remote interface.
Channel power list: Single command to execute up to 501
power measurements.
Displayed average noise level 21:
≤–140dBm/Hz, pre-amp off (F ≤ 2500MHz).
≤–138dBm/Hz, pre-amp off (2500MHz < F ≤ 4000MHz).
≤–128dBm/Hz, pre-amp off (4000MHz < F ≤ 6000MHz).
≤–150dBm/Hz, pre-amp on (F ≤ 2500MHz).
≤–148dBm/Hz, pre-amp on (2500MHz < F ≤ 4000MHz).
≤–143dBm/Hz, pre-amp on (4000MHz < F ≤ 6000MHz)
VSWR: ≤1.4:1 (characteristic).
SSBB Phase Noise (dBc/Hz)
Standard Spectrum Analysis Modes
• Spectrum Analyzer (power envelope amplitude vs. frequency
spectrum)
• Zero Span (power envelope amplitude vs. time)
• ACPR (adjacent channel power ratio bar chart)
• Channel Power List
• Spectrum Emissions Mask (SEM)
Spectrum Analysis Controls
and Parameters
SSBB Phase Noise (dBc/Hz)
Modes of Operation
2820A
RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
Measurement Speed Characteristics 24, 25
Fcarrier = 4000MHz Phase Noise
-UPN enabled
-UPN disabled or not present
SSBB Phase Noise (dBc/Hz)
–65
General Purpose Mode
Spectrum or Zero Span 27
ACPR/ACLR 28
Center, Upper & Lower Adj, Upper & Lower Alt
Center channel only (measurement of Adj & Alt Off)
Channel Power List Mode 29
Single frequency
–85
–105
–125
–145
0.1
1
10
100
1000
10000
100000
Offset Frequency (kHz)
Fcarrier = 5800MHz Phase Noise
-UPN enabled
-UPN disabled or not present
–65
SSBB Phase Noise (dBc/Hz)
Model
Model
2820A
Side
specifications
specifications
Text
–165
0.01
–85
–105
–125
–145
–165
0.01
0.1
1
10
100
1000
10000
100000
Offset Frequency (kHz)
Generator Output
Frequency range 22: 400–2500MHz.
Sweep span 23: 0–2100MHz.
Sweep points: 1 to 501.
Dwell setting: 1ms to 1s in 1ms increments.
Amplitude: Fixed: –18dBm ±5.0dB (typical).
Supplemental Speed Information
Sweep Speed vs. RBW
1000
100
Sweep Speed (GHz/second)
10
R F/ M i c ro wav e
Measurement Speed Parameter
1
0.1
0.01
Competitor
2820A Std.
2820A-UPN
0.001
0.0001
0.00001
0.000001
1
10
100
1,000
10,000
100,000
1,000,000 10,000,000
Resolution Bandwidth (Hz)
1.888.KEITHLEY
With any frequency change
Maximum reading rate (minimum step width) 30
GSM Mode 31
Phase error, channel power and time mask
Phase error and channel power free run trigger
(burst measurement 100 averages)
Phase error and channel power video trigger
(burst measurement 100 averages)
ORFS due to modulation or switching
EDGE Mode 32
EVM, channel power and time mask
EVM and channel power (burst measurement
100 averages)
ORFS due to modulation or switching
EDGE Evolution
EVM, channel power and time mask
EVM and channel power (burst measurement
100 averages)
ORFS due to modulation or switching
CDMA2000 Mode
Demodulation measurement 33
ACPR method 1 34
ACPR method 2 35
Spectrum emissions mask and occupied bandwidth 36
WCDMA DL Mode
Demodulation measurement 37
ACLR method 1 38
ACLR method 2 39
Spectrum emissions mask and occupied bandwidth 40
WCDMA UL Mode
Demodulation measurement 41
ACLR method 1 42
ACLR method 2 43
Spectrum emissions mask and occupied bandwidth 44
HSDPA
Demodulation measurement 45
WLAN Mode 46
802.11a
802.11b
802.11j
802.11n 20MHz signal bandwidth
802.11n 40MHz signal bandwidth
WiMAX Mode 47
802.16e 10MHz signal bandwidth
802.16e 20MHz signal bandwidth
Maximum display refresh rate for a complete update of a
640×480 pixel VGA screen: internal display
Data Transfer over LAN/TCP/IP
Remote Trace Data Transfer 49
LAN
USB
GPIB
Time to Switch Between Measurements 50
Within general purpose mode
From digital to general purpose mode
From general purpose to digital mode
Within GSM or EDGE mode
From CDMA2000 or WCDMA non-demodulate to
demodulate
From CDMA2000 or WCDMA demodulate to
non-demodulate
Characteristic Value
2800 Desktop Control Panel
Performance 26
16.0 ms
7.29 ms
5.0 ms (2820A-UPN: 13.0 ms)
4.0 ms
1.93 ms (2820A-UPN: 6.5 ms)
0.9 ms
600 μs per point
720 μs per point
(2820A-UPN: 1500 µs per point)
100 µs per point
590 µs per point
670 µs per point
(2820A-UPN: 1500 µs per point)
100 µs per point
22.4 ms
8.4 ms
15.5 ms (6.3 ms/burst)
8.1 ms (6.2 ms/burst)
14 ms (4.7 ms/burst)
4.7 ms (4.6 ms/burst)
17.5 ms
9.4 ms
22.0 ms
10.3 ms
18.7 ms (6.4 ms/burst)
9.9 ms (6.3 ms/burst)
20.7 ms
9.4 ms
22.9 ms
9.2 ms
14.2 ms (5.0 ms/burst)
9.2 ms (4.9 ms/burst)
19 ms
9.4 ms
46 ms
4.6 ms (2820A-UPN: 29.5 ms)
223 ms (2820A-UPN: 232 ms)
37 ms
41 ms
21.8 ms (2820A-UPN: 26.4 ms)
219.3 ms (2820A-UPN: 228.5 ms)
16 ms
117.5 ms
5.4 ms (2820A-UPN: 10 ms)
208 ms (2820A-UPN: 218 ms)
49 ms
108.6 ms
2.3 ms (2820A-UPN: 6.8 ms)
205 ms (2820A-UPN: 214 ms)
27 ms
69 ms
5.1 ms (2820A-UPN: 10 ms)
209 ms (2820A-UPN: 218 ms)
56 ms
62 ms
2.3 ms (2820A-UPN: 6.8 ms)
204 ms (2820A-UPN: 214 ms)
34 ms
130.5 ms
121.3 ms
14.4 ms (2820A-UPN: 20.8 ms)
34.6 ms (2820A-UPN: 34.6 ms)
15.8 ms (2820A-UPN: 22.1 ms)
20.7 ms (2820A-UPN: 23.2 ms)
17.2 ms (2820A-UPN: 23.6 ms)
21.5 ms (2820A-UPN: 23.6 ms)
37 ms (2820A-UPN: 37 ms)
21.5 ms (2820A-UPN: 25 ms)
21.5 ms (2820A-UPN: 25.4 ms)
21.5 ms (2820A-UPN: 28 ms)
164.8 ms
148.0 ms
99 ms
80 ms
30 sweeps/s (33 ms/sweep)
Up to 0.4 MByte/s
Up to 10 MByte/s 48
3.7 ms
13 ms
24 ms
0.9 ms
5.5 ms
10.7 ms
12.4 ms
9.4 ms
2.0. ms
3.5 ms
3.6 ms
3.6 ms
15.9 ms
4.4 ms
11.8 ms
6.4 ms
(U.S. only)
w w w.keithley.com
A
G R E A T E R
M E A S U R E
O F
C O N F I D E N C E
2820A
RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
GSM/GPRS Power and Modulation
Quality (Carrier ≤2.5GHz)
Channel Power:
Measurement Range: +33dBm to –30dBm (typical).
Accuracy: ±0.6dB (typical).
Phase and Frequency Error:
Frequency Error Measurement Range: ±50kHz (typical).
Frequency Error Accuracy: ±10Hz (typical).
RMS Phase Error Measurement Range: 0°–10° (typical).
RMS Phase Error Accuracy: <±1°.
Peak Phase Error Measurement Range 51: 0°–25° (typical).
Peak Phase Error Accuracy 52: ±2°.
Phase Error Floor: RMS: 0.35°, Peak: 1.0°.
Time Mask Conformance:
Sampling Resolution: 0.615µs (1/6 bit).
Accuracy Along Burst Peak: ±0.25dB.
Outputs: Pass/Fail, complete burst with upper and lower
mask limit lines.
Output RF spectrum 53:
Relative Accuracy: ±0.7dB (typical).
ORFS Due to Modulation:
Dynamic Range (dBc)
Carrier Frequency (FC )
Offset
(typical in parentheses)
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz 1GHz < F C < 2GHz
200
250
400
600
1200
1800 54
35
40
68
73 (76)
77 (80)
75 (77)
35
40
67
72 (74)
77 (79)
74 (77)
2820-UPN: ORFS Due to Modulation:
Dynamic Range (dBc)
Carrier Frequency (FC )
(typical in parentheses)
Offset
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz
200
250
400
600
1200
1800 55
1GHz < F C < 2GHz
35
40
70
81 (82)
82 (84)
77 (79)
35
40
69
79 (81)
82 (83)
77 (79)
ORFS Due to Switching:
Dynamic Range (dBc)
Carrier Frequency (FC )
Offset
(typical in parentheses)
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz 1GHz < F C < 2GHz
400
600
1200
1800
67 (68)
73 (74)
77 (79)
80 (81)
66 (67)
71.5 (72)
76 (78)
80 (81)
2820A-UPN: ORFS Due to Switching:
Dynamic Range (dBc)
Carrier Frequency (FC )
Offset
(typical in parentheses)
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz 1GHz < F C < 2GHz
400
69 (70)
69 (70)
600
78 (80)
77 (79)
1200
82 (84)
82 (84)
83 (85)
81 (83)
1800
Displays: Power vs. Time with Time Mask, ORFS due to
Modulation, ORFS due to Switching, Phase Error vs. Time,
Symbols vs. Time.
1.888.KEITHLEY
Channel Power:
Measurement Range: +33dBm to –30dBm (typical).
Accuracy: ±0.6dB (typical).
Frequency Error:
Frequency Error Measurement Offset: ±50kHz (typical).
Frequency Error Accuracy: ±10Hz (typical).
EVM:
RMS Measurement Range: 0–15% (typical).
RMS Floor: ≤0.6%.
Origin Offset Range: –20dBc maximum (typical).
RMS Accuracy: ±0.5%.
Time Mask Conformance:
Sampling Resolution: 0.615µs (1/6 bit) (typical).
Accuracy Along Burst Peak: ±0.25dB (typical).
Output RF Spectrum 57:
Relative Accuracy: ±0.7dB (typical).
ORFS Due to Modulation:
Dynamic Range (dBc)
Carrier Frequency (FC )
Offset
(typical in parentheses)
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz 1GHz < F C ≤ 2GHz
200
250
400
600
1200
1800 58
37
41
68
73 (74)
78 (79)
75 (77)
37
41
67
71 (73)
77 (78)
75 (77)
2800-EDGE2
EDGE Evolution Signal Analysis
EDGE Evolution Power and
Modulation Quality (Carrier ≤2.5GHz)
Channel power:
Measurement Range: +33dBm to –30 dBm (typical).
Accuracy: ±0.6dB (typical).
Frequency error:
Frequency Error Measurement Offset: ±50kHz (typical).
Frequency Error Accuracy: ±10Hz (typical).
EVM:
RMS Measurement Range: 0–15% (typical).
RMS Floor: ≤0.50%.
Origin Offset Range: –20dBc maximum (typical).
RMS Accuracy: ±0.5%.
Time Mask Conformance:
Sampling Resolution: 0.615µs (1/6 bit) (typical).
Accuracy Along Burst Peak: ±0.25dB (typical).
Outputs: Pass/Fail, complete burst with upper and lower
mask limit lines.
Displays: Power vs. Time with Time Mask, ORFS due to
Modulation, ORFS due to Switching, EVM vs. Time, Symbols
vs. Time, Constellation.
Output RF Spectrum 60:
Relative Accuracy: ±0.7dB (typical).
ORFS Due to Modulation:
2820A-UPN: ORFS Due to Modulation:
Dynamic Range (dBc)
Carrier Frequency (FC )
(typical in parentheses)
Offset
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz
200
250
400
600
1200
1800 59
1GHz < F C ≤ 2GHz
37
41
70
80 (81)
81 (83)
77 (79)
37
41
70
79 (80)
80 (82)
77 (79)
ORFS Due to Switching:
Dynamic Range (dBc)
Carrier Frequency (FC )
Offset
(typical in parentheses)
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz 1GHz < F C ≤ 2GHz
400
600
1200
1800
67 (68)
72 (73)
77 (78)
80 (81)
66 (67)
71 (72)
76 (77)
80 (81)
2820A-UPN: ORFS Due to Switching:
Dynamic Range (dBc)
Carrier Frequency (FC )
(typical in parentheses)
Offset
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz
400
600
1200
1800
1GHz < F C ≤ 2GHz
67 (68)
78 (79)
80 (82)
80 (82)
68 (69)
78 (79)
79 (81)
81 (83)
Displays: Power vs. Time with Time Mask, ORFS due to
Modulation, ORFS due to Switching, EVM vs. Time,
Symbols vs. Time, Constellation.
Dynamic Range (dBc)
Carrier Frequency (FC )
(typical in parentheses)
Offset
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz
200
250
400
600
1200
1800 61
A
G R E A T E R
M E A S U R E
1GHz < F C ≤ 2GHz
36
39
68 (69)
74 (75)
77.5 (78.5)
74 (75)
36
39
64 (66)
69 (70.5)
75 (77)
72 (75)
2820A-UPN: ORFS Due to Modulation:
Dynamic Range (dBc)
Carrier Frequency (FC )
Offset
(typical in parentheses)
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz 1GHz < F C ≤ 2GHz
200
36
250
39
400
69
600
77 (78)
1200
79 (80)
62
75 (76)
1800
ORFS Due to Switching:
36
39
69
77 (78)
79 (80)
76(77)
Dynamic Range (dBc)
Carrier Frequency (FC )
(typical in parentheses)
Offset
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz
400
600
1200
1800
1GHz < F C ≤ 2GHz
67 (68)
74 (75)
78 (79)
79 (82)
64 (65)
69 (70)
74.5 (77)
77 (80)
2820A-UPN: ORFS Due to Switching:
Dynamic Range (dBc)
Carrier Frequency (FC )
Offset
(typical in parentheses)
Frequency
(kHz)
400MHz ≤ F C ≤ 1GHz 1GHz < F C ≤ 2GHz
400
600
1200
1800
70
78 (79)
80 (81)
80 (81)
(U.S. only)
w w w.keithley.com
Model
Model
2820A
Side
specifications
specifications
Text
EDGE Power and Modulation
Quality (Carrier ≤2.5GHz)
O F
C O N F I D E N C E
69 (70)
77.5 (78.5)
79 (80)
80.5 (81.5)
R F/ M i c ro wav e
2800-GSM
GSM/GPRS/EDGE Signal
Analysis Personality
2820A
RF Vector Signal Analyzer
Model 2820A
Side specifications
Text
400MHz to 4GHz or 6GHz
2800-CDMA-R
cdma2000 Reverse Link
Signal Analysis Personality
2800-WCDMA-D
WCDMA Downlink
Signal Analysis Personality
CDMA2000 Power and Modulation
Quality (Carrier ≤2.5GHz)
WCDMA Power and Modulation
Quality (Carrier Frequency =
1800MHz–2200MHz)
Channel Power:
Measurement Range: +33dBm to –70dBm (typical).
Accuracy (1.2288MHz BW): ±0.6dB (typical).
Frequency Error:
Frequency Error Measurement Range: ±3kHz (typical).
Frequency Error Accuracy: ±10Hz (typical).
Rho (ρ):
Range: 0.7–1.0 (typical).
Ceiling: >0.9995.
Accuracy: ±0.005 (for ρ values >0.9).
Code Domain Power:
Relative Accuracy, for Code Channels ≥ –20dB of Total
Power: ±0.3dB (typical).
Adjacent Channel Power 63:
Dynamic Range: 74dBc @ 885kHz offset (typical).
86dBc @ 1980kHz offset (typical).
2820A-UPN:
79dBc @ 885kHz offset (typical).
88.5dBc @ 1980kHz offset (typical).
Relative Accuracy: ±0.5dB (typical).
Occupied Bandwidth:
Frequency Accuracy: ±5kHz (typical).
Spectrum emissions mask 64:
Accuracy Relative to Carrier Power: <0.5dB.
Displays: Code Domain Power, Adjacent Channel Power with
limits, Occupied Bandwidth with limit lines, Conducted
Spurious Emissions with limits.
2800-WCDMA-U
WCDMA Uplink
Signal Analysis Personality
R F/ M i c ro wav e
WCDMA Power and Modulation
Quality (Carrier Frequency =
1800MHz–2200MHz)
Channel Power:
Measurement Range: +33dBm to –60dBm (typical).
Accuracy (3.84MHz BW): ±0.6dB (typical).
Frequency Error:
Frequency Error Measurement Range: ±3kHz (typical).
Frequency Error Accuracy: ±10Hz (typical).
RMS EVM:
Range: 0%–25% (typical).
Floor: 1.8% (typical).
Accuracy: ±2%.
Code Domain Power:
Relative Accuracy, for Code Channels ≥ –20dB of Total
Power: ±0.3dB.
Adjacent Channel Power 65:
Dynamic Range: 67dBc @ 5MHz offset (typical).
69dBc @ 10MHz offset (typical).
2820A-UPN:
68dBc @ 5MHz offset (typical).
70dBc @ 10MHz offset (typical).
Relative Accuracy: ±0.5dB (typical).
Occupied Bandwidth:
Frequency Accuracy: ±20kHz (characteristic).
Spectrum Emissions Mask 66:
Accuracy Relative to Carrier Power: <1.5dB (characteristic).
Displays: Code Domain Power, Adjacent Channel Power
with limits, Occupied Bandwidth with limit lines, Spectrum
Emissions with limits.
1.888.KEITHLEY
Channel Power:
Measurement Range: +33dBm to –60dBm (typical).
Accuracy (3.84MHz BW): ±0.6dB (typical).
Frequency Error:
Frequency Error Measurement Range: ±3kHz (typical).
Frequency Error Accuracy: ±10Hz (typical).
RMS EVM:
Range: 0%–25% (typical).
Floor: 1.8% (typical).
Accuracy: ±2%.
Symbol EVM 67: 0.5%.
Code Domain Power:
Relative Accuracy, for Code Channels ≥ –20dB of Total
Power: ±0.3dB.
Adjacent Channel Power 68:
Dynamic Range: 67dBc @ 5MHz offset (typical).
69dBc @ 10MHz offset (typical).
2820A-UPN:
68dBc @ 5MHz offset (typical).
70dBc @ 10MHz offset (typical).
Relative Accuracy: ±0.5dB (typical).
Occupied Bandwidth:
Frequency Accuracy: ±20kHz (characteristic).
Spectrum Emissions Mask 69:
Accuracy Relative to Carrier Power: <1.5dB (characteristic).
Displays: Code Domain Power, Adjacent Channel Power
with limits, Occupied Bandwidth with limit lines, Spectrum
Emissions with limits.
2800-HSPA-D
WCDMA HSPA Downlink
Signal Analysis Personality
2800-HSPA-U
WCDMA HSPA Uplink
Signal Analysis Personality
HSPA Power and Modulation
Quality (Carrier Frequency =
1800MHz–2200MHz)
Channel Power:
Measurement Range: +33dBm to –60dBm (typical).
Accuracy (3.84MHz BW): ±0.6dB (typical).
Frequency Error:
Frequency Error Measurement Range: ±3kHz (typical).
Frequency Error Accuracy: ±10Hz (typical).
RMS EVM:
Range: 0%–25% (typical).
Floor 70: 2.25% (typical) 71.
QPSK: 1.25% (characteristic).
16QAM: 1.30% (characteristic).
64QAM: 1.35% (characteristic).
Accuracy: ±2%.
Code Domain Power:
Relative Accuracy, for Code Channels ≥ –20dB of Total
Power: ±0.3dB.
Adjacent Channel Power 72:
Dynamic Range: –66dBc @ 5MHz offset (typical).
–68dBc @ 10MHz offset (typical).
Relative Accuracy: ±0.5dB (typical).
Occupied Bandwidth:
Frequency Accuracy: ±20kHz (characteristic).
Spectrum Emissions Mask 73:
Accuracy Relative to Carrier Power: <1.5dB (characteristic).
Displays: Code Domain Power, Adjacent Channel Power
with limits, Occupied Bandwidth with limit lines, Spectrum
Emissions with limits.
2800-80211
Wireless LAN (WLAN) Signal
Analysis Personality
WLAN Power and Modulation
Quality
Channel Power Measurement Range:
Carrier Frequency 2.4GHz: +33dBm to –60dBm (typical).
Carrier Frequency 4.9 and 5.8GHz: +15dBm to –60dBm
(typical).
Accuracy:
OFDM 20MHz Signal Bandwidth: ±0.85dB (typical).
OFDM 40MHz Signal Bandwidth: ±0.85dB (typical).
DSSS/CCK: ±0.85dB (typical).
Frequency Error:
Measurement Range:OFDM: ±312kHz.
DSSS/CCK: ±100kHz.
Accuracy: ±10Hz (typical).
RMS EVM Floor 74 Characteristic:
Standard
Phase Noise
2820A–UPN
–42.5 dB @
–44 dB @
802.11a
4.9–5.8 GHz
4.9–5.8 GHz
–49 dB @
–50.5 dB @
802.11b
2.4 GHz
2.4 GHz
–47 dB @
–50.5 dB @
802.11g
2.4 GHz
2.4 GHz
–44 dB @
–45 dB @
802.11j
4.9 GHz
4.9 GHz
–48 dB @
–46 dB @
2.4 GHz
2.4 GHz
802.11n 20 MHz
signal bandwidth 75
–44 dB @
–42 dB @
5.1–5.8 GHz
5.1–5.8 GHz
802.11n 40 MHz
–40 dB @
–42 dB @
76
signal bandwidth
5.1–5.8 GHz
5.1–5.8 GHz
Channel Flatness Mask Margin:
OFDM 20MHz Signal Bandwidth: 1.4dB (typical) at 2.4 and
5.8GHz.
OFDM 40MHz Signal Bandwidth: 1.0dB (typical) at 5.8GHz.
2800-80216-E
WiMAX Signal Analysis
Personality
WiMAX Power and Modulation
Quality
Channel Power:
Measurement Range, Carrier Frequency <3.6GHz:
+33dBm to –60dBm (typical).
Accuracy:
10MHz Signal Bandwidth: ±0.85dB (typical).
20MHz Signal Bandwidth: ±0.85dB (typical).
Frequency Error:
Measurement Range:
10MHz Signal Bandwidth 77: ±60kHz.
20MHz Signal Bandwidth 78: ±120kHz.
Accuracy: ±10Hz (characteristic).
(U.S. only)
w w w.keithley.com
A
G R E A T E R
M E A S U R E
O F
C O N F I D E N C E
2820A
RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
2800-DIG
Flexible Digital Modulation
Generation Personality
FSK Parameters
Modulation Type: FSK2.
Filters:
Filter Types: Rectangular, RC, RRC, Gaussian, NRZ Gauss.
Filter Factor:
RC, RRC: 0.2 to 1.0.
Gaussian, NRZ Gauss: 0.2 to 3.0.
Symbol Rate:
Symbol Rate Resolution: 1 Symbol/s.
Minimum Symbol Rate: 10K Symbols/s.
Maximum Symbol Rate:
Gaussian, NRZ Gauss: 3.125MSps (Factor < 0.5)
2.5MSps (0.5 ≤ Factor < 1.0)
1.25MSps (Factor ≥ 1.0).
RC, RRC, Rectangular: 1.25MSps.
Frequency Separation:
Range:
Gaussian, NRZ Gauss, Rectangular: 2 × Symbol Rate.
RC, RRC: 1 × Symbol Rate.
Trigger and Synchronization
Inputs and Outputs
GENERAL SPECIFICATIONS
Power: 100VAC to 240VAC; 50/60Hz (automatically
detected); 150VA max.
CE EMC Compliance: EU Directive 89/336/EEC;
EN 61326-1.
CE Safety Compliance: CE; EU Directive 73/23/EEC,
EN 61010-1.
Calibration: Annual calibration cycle in system.
Environment (for indoor use only):
18° to 28°C specified operating, unless otherwise noted.
0° to 50°C operating survival, non-specified operation.
–25°C to 65°C non-operating (AC power off) storage.
Altitude: 2000 meters above sea level maximum
specified operating.
Cooling: Forced air top, bottom, and side intakes
and rear exhaust. For proper cooling in a rack, use
Keithley Instruments 2890-RK Rack Mount Kit.
Digital inputs/outputs: 4 bits, TTL-compatible.
Interfaces: IEEE-488.1 compliant. Supports IEEE-488.2
common commands and status model topology.
LAN: 10/100BT Ethernet, RJ45, LXI Class C, no auto
MDIX.
IVI-COM.
USB: USB full speed.
RF In/TG Out: Type N connector.
Mechanical vibration and shock:
MIL-PRF-2880 CL3 random vibration, 3 axes.
Sine-Sweep test for resonances, 3 axes.
MIL-STD-810F 516.5 paragraph, 4.5.7 procedure VI
bench drop.
MIL-PRF-2880 CL3 random vibration, 3 axes.
General mechanical characteristics:
Height: 3U (133mm) (5.25˝).
Width: Half-rack (213mm) (8.4˝).
Depth: 464mm (18.25˝).
Weight: 7.5kg (16.5 lbs.).
Warranty: 1 year.
Trigger sources 83:
Free run
External
Video
Bus
External arm using video trigger
Bus arm using external or video trigger
Latched External
Trigger delay Range: –30 to +30 seconds.
Trigger modes:On measurement.
On acquire.
External trigger:
Selectable on rising or falling edge of external input.
Input level TTL.
Minimum input pulse width required 50ns (characteristic).
Video trigger modes:
Selectable on rising or falling signal edge.
Video level.
Pre-qualification mode level and time settings
Sync output modes:
Generate a Sync Pulse:
Off
Begin measurement
Start tune
Ready acquire
Start acquire
End acquire
End measurement
Sync output polarity select: Sync out is on the falling
or rising edge.
Sync output:TTL level. Minimum pulse width 200ns
(characteristic).
Even second clock input: External even second
clock (TTL).
Even second clock output: External even second
clock (TTL).
Model 2820A
Side specifications
Text
RCE Floor 79, Typical (Characteristic):
10MHz Signal Bandwidth 80:–47dB (–48dB) @ 700MHz.
–45.5dB (–47dB) @ 2.5GHz.
–44dB (–46dB) @ 3.5GHz.
81
20MHz Signal Bandwidth : –44dB (–46dB) @ 700MHz.
–43dB (–45dB) @ 2.5GHz.
–42dB (–44dB) @ 3.5GHz.
Channel Flatness Mask Margin:
10MHz Signal Bandwidth: 1.8dB (characteristic).
20MHz Signal Bandwidth: 1.7dB (characteristic).
Spectrum emissions mask 82:
Accuracy Relative to Carrier Power: <2.0dB swept mode,
<1.0dB step mode (characteristic).
PSK Parameters
SPECIFICATION NOTES
Specifications (warranted performance):
Specifications describe the instrument’s warranted performance. All units are warranted to meet performance specifications under the following conditions:
• Ambient operating temperature of 18° to 28°C, unless otherwise noted.
• After specified warm-up time of 30 minutes and self
calibration at ambient temperature.
Note: All items are specifications unless otherwise noted.
EVM Characteristics
Modulation
All PSK
FSK
Filter TypeRMS EVM, %
NRZ, Wideband
<0.25%
NRZ
<0.3%
1.888.KEITHLEY
Typical (mean + 3 standard deviations):
Typical indicates performance that units will meet under the
following conditions:
• Ambient operating temperature of 23°C, unless otherwise
noted.
• After specified warm-up time of 30 minutes and self calibration at ambient temperature.
This performance is not warranted.
Characteristic (mean or expected value):
Characteristic indicates performance that a unit would be
expected to exhibit under the following conditions:
• Ambient operating temperature of 23°C, unless otherwise
noted.
• After specified warm-up time of 30 minutes and self
calibration at ambient temperature.
This performance is not warranted.
(U.S. only)
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Modulation Types: BPSK, QPSK, pi/4 QPSK, 3pi/4 QPSK,
8PSK.
Filters: Filter Types: NRZ, RC, RRC, Gaussian, NRZ Gauss,
Wideband.
Filter Factor:
RC, RRC: 0.2 to 1.0.
Gaussian, NRZ Gauss: 0.3 to 3.0.
Symbol Rate:
Symbol Rate Resolution: 1 Symbol/s.
Minimum Symbol Rate: 10K Symbols/s.
Maximum Symbol Rate:
Gaussian, NRZ Gauss: 3.125MSps (Factor < 0.5)
2.5MSps (0.5 ≤ Factor < 1.0)
1.25MSps (Factor ≥ 1.0).
NRZ, Wideband:
1.25MSps
RC, RRC:
6.25MSps
2820A
RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
Model 2820A
Side specifications
Text
Notes
1. Over range operation provided: 325MHz to 4.0GHz. Performance
below 400MHz is not specified.
2. Over range operation provided: 325MHz to 6.5GHz. Performance
below 400MHz and above 6.0GHz is not specified.
3. Synthesizer resolution term: ≤20μHz.
4. From sync out on start tune to within 0.1ppm of final value.
5. Total variation from 0° to 50°C ambient temperature range.
6. Factory preset setting.
7. On 10Hz boundaries Freq = 1MHz + n * 10Hz. Reference accuracy:
≤±1ppm. Sine or square wave inputs acceptable. Lock time may be up
to 30 seconds.
8. Over range operation provided: Maximum span is 3.675GHz.
Performance below 400MHz is not specified.
9. Over range operation provided: Maximum span is 6.175GHz.
Performance below 400MHz and above 6.0GHz is not specified.
10.Maximum sweep time is limited to 32MS data points.
11. Flatness across a given measurement span is the sum of IF flatness
and RF flatness.
12.RBW accuracy <1% characteristic.
13.Filter types are settable in zero span, channel power list, and
ACPR modes.
14. Filter is raised-cosine type, alpha = 0.091. ENBW and 6dB BW is
1.1 * RBW setting.
15. CDMA and WCDMA measurement personalities limit number of trace
averages to 100.
16.Specifications apply when autocoupled unless otherwise stated.
17. Input power at 0dBm, span = 1MHz and RBW = 100Hz.
18.Signal level within 60dB of top of screen, reference level 0dBm, no
change in instrument state.
19. Applies only if input attenuator is changed from auto-coupled setting.
20.For repetitive CW power readings with read signal removed then
reapplied for signals: >40dB above noise floor within 5 minutes.
21. For Model 2820A-SPI units, 1dB degradation of performance across all
frequency bands with preamp on and off.
22.Over range operation provided: 325MHz to 2.7GHz. Performance
below 400MHz and above 2.5GHz is not specified.
23.Over range operation provided: Maximum span: 2.375GHz.
Performance below 400MHz and above 2.5GHz is not specified.
24.General test conditions: fast mode on, noise correction off, range
check off, randomize start off, background tasks off, display off.
25. Except where noted, GPIB is used.
26.Using the Series 2800 Desktop Control Panel software running on a
Windows XP, 3.4GHz, IBM-compatible desktop PC.
27. Instrument preset, all settings auto coupled: 300kHz ≤ span ≤
300MHz. In zero span, sweep time ≤5ms and 1MHz BW. Time is trigger
to data available.
28.100µs sweep time, 3.84MHz BW, RRC filter.
29. 101 point list, 400µs acquisition time, ≥1MHz BW, brickwall.
30. ≤50µs acquisition time, ≥1MHz BW, brickwall.
31. Single burst, no averaging.
32.Single burst, no averaging.
33.Parameters measured: Rho, code domain power, RMS EVM, peak
EVM, peak code domain error, frequency error, IQ offset, and total
channel power.
34.500µs sweep.
35. To preset condition accuracy, display off.
36.Measured with general purpose SEM measurement, channel sweep
time = 100µs, number of averages = 1, measurement mode = sweep.
37. Parameters measured: Code domain power, RMS EVM, peak EVM, peak
code domain error, frequency error, IQ offset, and total channel power.
38.100µs sweep.
39. To preset condition accuracy, display off.
40.Measured with general purpose SEM measurement, channel sweep
time = 100µs, number of averages = 1, measurement mode = sweep.
41. Parameters measured: Code domain power, RMS EVM, peak EVM,
peak code domain error, frequency error, IQ offset and total
channel power.
42.100µs sweep.
43.100 averages.
44.Measured with general purpose SEM measurement, channel sweep
time = 100µs, number of averages = 1, measurement mode = sweep.
45. Parameters measured: Code domain power, RMS EVM, peak EVM,
peak code domain error, frequency error, IQ offset, and total
channel power.
46.802.11b waveform with 504 chips, mean of 100 iterations, plots
turned off, no frequency change, measurements include 4 EVM values,
channel power, and 4 additional parametric measurements.
47. FFT Size: 1024, channel equalization: Chan Est Seq+Pilots, mean of
100 iterations, plots turned off, no frequency change, measurements
include 4 RCE values, channel power, and 5 additional parametric
measurements.
48.Using PC socket connection.
49. Zero span, sweep time 100µs, binary data transfer, 501 data points.
50.Display off, MEAS1;INIT;IMM;*WAI;;MEAS2;INIT;IMM;*OPC.
51. Average of peak from each burst.
52.Average of peak from each burst.
53.Nominal carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
54.1800kHz offset measured using 100kHz RBW. All other offsets
measured using 30kHz RBW.
55. 1800kHz offset measured using 100kHz RBW. All other offsets
measured using 30kHz RBW.
56.Pass/fail, complete burst with upper and lower mask limit lines.
57. Nominal carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
58.1800kHz offset measured using 100kHz RBW. All other offsets
measured using 30kHz RBW.
59. 1800kHz offset measured using 100kHz RBW. All other offsets
measured using 30kHz RBW.
60.Nominal carrier power at RF input ≥–10dBm. QAM32 R325 Normal.
Does not include level uncertainty due to inherent noise.
61. 1800kHz offset measured using 100kHz RBW. All other offsets
measured using 30kHz RBW.
62.1800kHz offset measured using 100kHz RBW. All other offsets
measured using 30kHz RBW.
63.Carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
64.Carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
65. Carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
66.Carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
67. Valid for CPICH only signal.
68.Carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
69. Carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
70.Test model 5 with 2 HS-PDSCH channels (HS channels are QPSK,
16QAM, or 64QAM).
71. Test model 5 with 2 HS-PDSCH channels (HS channels using 16QAM)
72.Carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
73.Carrier power at RF input ≥–10dBm. Does not include level
uncertainty due to inherent noise.
74. Applies when input signal is above –20dBm, with Expected Channel
Power set equal to input power.
75. Measuring 802.11n SISO signals when configured as the Master in a
MIMO system configuration can degrade the EVM floor up to 3dB.
76.Measuring 802.11n SISO signals when configured as the Master in a
MIMO system configuration can degrade the EVM floor up to 3dB.
77. FFT Size: 1024. Channel equalization: Chan Est Seq + Pilots.
78.FFT Size: 1024. Channel equalization: Chan Est Seq + Pilots.
79. Applies when input signal is above –20dBm, with Expected Channel
Power set equal to input power.
80.FFT Size: 1024. Channel equalization: Chan Est Seq + Pilots.
81. FFT Size: 1024. Channel equalization: Chan Est Seq + Pilots.
82.Carrier power at RF input ≥–20dBm. Does not include level
uncertainty due to inherent noise.
83.Bus trigger and bus arm available only in channel power list mode.
Specifications are subject to change without notice.
All Keithley trademarks and trade names are the property of Keithley Instruments, Inc.
All other trademarks and trade names are the property of their respective companies.
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© Copyright 2009 Keithley Instruments, Inc.
Printed in the U.S.A.
No. 2883
60409 3KDCI