Characteristics

Trigger-related

Trigger Mode - Free run (triggered by acquisition), Triggered (Triggered by event), Single, or Continuous

Trigger Event Source - Power (span BW), Frequency Mask (Opt. 02), External

Pre-/Post-Trigger Setting - Trigger position settable within 0 to 100% of total acquisition length

Trigger Marker Position Timing Uncertainty (Power and External Trigger) - ±2 sample points

FREQUENCY MASK TRIGGER (Opt. 02)

Mask Resolution - 1 bin

Level Range - 0 dBfs*² to -60 dBfs at 10 dB/div vertical scale

Bandwidth -

Up to 15 MHZ: Start frequency =20 MHZ

Up to 20 MHZ: Start frequency <20 MHZ

Mask Shape - User-defined

Minimum Horizontal Mask Setting Resolution - <0.2% of span

Uncertainty - ±2 frames

POWER TRIGGER

Level Range - 0 dBfs to -40 dBfs

LEVEL TRIGGER

Level Range - 1 to 100%

EXTERNAL TRIGGER

Threshold Voltage - -1.5 V to +1.5 V

Threshold Voltage Setting Resolution - 0.1 V

Input Impedance - >2 kO

TRIGGER OUTPUT

Voltage (Output Current <1 mA) - HIGH: >2.0 V; LOW: <0.4 V

*² dBfs: dB relative to full scale

Capture-related

Real-Time Capture Bandwidth - 15 MHZ RF; 20 MHZ baseband; 20 MHZ using Opt. 03 IQ inputs

A/D Converter - 51.2 MS/s, 14 bits

Minimum Acquisition Length in RTSA/Time/Demod Modes - 1024 samples

Maximum Acquisition Length in RTSA/Time/Demod Modes - 16,384,000 samples; 65,636,000 samples, Opt. 02

Acquisition Length Setting Resolution in RTSA/Time/Demod Modes -  

Acquisition Memory Size - 16.4 MSamples; 65.6 MSamples, Opt. 02

Block Size (number of frames) - 1 to 16,000; 1 to 64,000, Opt. 02

Memory Depth (time) and Maximum Time Resolution

Span	Sample Rate (For I and Q)	Record Length	Record Length (Opt. 02)	Spectrum Frame (Time)	Max Time (Resolution)
20 MHZ (Baseband)	25.6 MS/s	0.64 s	2.56 s	40 µs	40 ns
15 MHZ	25.6 MS/s	0.64 s	2.56 s	40 µs	40 ns
10 MHZ	12.8 MS/s	1.28 s	5.12 s	80 µs	80 ns
5 MHZ	6.4 MS/s	2.56 s	10.24 s	160 µs	160 ns
2 MHZ	3.2 MS/s	6.4 s	20.48 s	320 µs	320 ns
1 MHZ	1.6 MS/s	12.8 s	40.96 s	640 µs	640 ns
500 KHZ	800 KS/s	25.6 s	81.92 s	1.28 ms	1.25 µs
200 KHZ	320 KS/s	64 s	204.8 s	3.2 ms	3.2 µs
100 KHZ	160 KS/s	128 s	409.6 s	6.4 ms	6.4 µs
50 KHZ	80 KS/s	256 s	819.2 s	12.8 ms	12.8 µs
20 KHZ	32 KS/s	640 s	2048 s	32 ms	32 µs
10 KHZ	16 KS/s	1280 s	4096 s	64 ms	64 µs
5 KHZ	8 KS/s	2560 s	8192 s	128 ms	128 µs
2 KHZ	3.2 KS/s	6400 s	20480 s	320 ms	320 µs
1 KHZ	1.6 KS/s	12800 s	40960 s	640 ms	640 µs
500 HZ	800 KS/s	25600 s	81920 s	1.28 s	1.28 ms
200 HZ	320 S/s	64000 s	204800 s	3.2 s	3.2 ms
100 HZ	160 S/s	128000 s	409600 s	6.4 s	6.4 ms

Analysis-related

Measurement Functions by Mode

Views by Mode

MEASUREMENT SPEED

Screen Update Rate - 2 MHZ Span, Auto RBW: 19.4/s

Remote Measurement Rate and GPIB Transfer Rate (2 MHZ span, auto RBW, spectrum data) - 1.87 waveforms/s, or 6,000 samples/s

RF Center Frequency Switching Time -  

<10 ms for 10 MHZ frequency change

500 ms for 3 GHZ frequency change

TRACES, DISPLAYS, DETECTORS

Traces - Two traces, Spectrum Analyzer mode

Displays - Up to three time-correlated, user-selected displays

Detector - RMS

Trace Types - Normal (RMS), Average, Max Hold, Min Hold

Display Detection - Max, Min, Max/Min

MODULATION ANALYSIS

Analog

AM

Minimum Input Level - -40 dBfs, typical

PM

Minimum Input Level - -40 dBfs, typical

PM Scale, Max, Min - ±180°

FM

Minimum Input Level - -40 dBfs, typical

Range - ±Span/2 from center frequency

DEMODULATION ACCURACY

Analog

AM (-10 dBfs signal, input at CF, 10 to 60% modulation depth) - ±2%

PM (-10 dBfs signal, input at CF) - ±3°

FM (-10 dBfs signal, input at CF) - ±1% of span

RF Performance

FREQUENCY

Frequency Range -  

RSA3308A/WCA280A: DC to 8 GHZ

RSA3303A/WCA230A: DC to 3 GHZ

Center Frequency Setting Resolution - 0.1 HZ

Frequency Marker Readout Accuracy, Baseband - ±(RE*³ × MF*⁴ + 0.001 × Span + 0.2) HZ

Frequency Marker Readout Accuracy, RF - ±(RE × MF + 0.001 × Span + 2) HZ

Span Accuracy - ±1 bin

RBW Filter Bandwidth Accuracy - 0.1%

Reference Frequency -  

Aging per day - 1 × 10^-9 (after 30 days of operation).

Aging per year - 1 × 10^-7 (after 30 days of operation).

Temperature Drift - 1 × 10^-7 (10 to 40 °C).

Total Frequency Error - 2 × 10^-7 (within one year of calibration).

Reference Output Level - >0 dBm.

External Reference Input - 10 MHZ, -10 dBm to + 6 dBm.

Frequency Span -  

Range, Spectrum Analyzer Mode -  

50 HZ to 3 GHZ (Start Frequency =40 MHZ)

0 HZ to 40 MHZ (Stop Frequency <40 MHZ)

Range, Real-Time Spectrum Analyzer Mode -  

100 HZ to 15 MHZ (RF)

0 HZ to 20 MHZ (Baseband)

Resolution Bandwidth Range - 2 KHZ to 2 MHZ, automatically selected or user-defined

Accuracy - Within 6.0% ±0.1%

Shape Characteristic - Gaussian with <5:1 shape factor (3:60 dB)

Rectangular, Nyquist, Root Nyquist shapes may also be selected.

*³ RE: Reference Frequency Error

*⁴ MF: Marker Frequency (HZ)

Minimum Settable RBW (Extended Resolution ON)

Noise Bandwidth Range, RTSA Mode - 313.18 MHZ to 400.87 KHZ

FFT Performance -  

Number of samples per frame - 64 to 8192 (65,536 samples per frame, extended resolution).

Window types - Rectangular, Parzen, Welch, Sine-Lobe, Hanning, Sine-cubed, Sine-to-the-4^th, Hamming, Blackman, Rosenfield, Blackman-Harris 3A, Blackman-Harris 3B, Blackman-Harris 4A, Blackman-Harris 4B, FlatTop.

STABILITY

Noise Sidebands, dBc/HZ

Offset	At 1 GHZ CF		At 2 GHZ CF		At 6 GHZ CF
	Spec	Typical	Spec	Typical	Spec	Typical
1 KHZ	-100	-107	-96	-99	-87	-90
10 KHZ	-105	-112	-104	-107	-104	-107
20 KHZ	-105	-112	-105	-108	-105	-108
30 KHZ	-105	-112	-105	-108	-105	-108
100 KHZ	-112	-115	-112	-115	-112	-115
1 MHZ	-132	-135	-132	-135	-128	-131
5 MHZ	-135	-140	-135	-138	-130	-133
7 MHZ	-135	-140	-135	-138	-130	-133

Residual FM - 2 HZ, pk-pk, typical.

AMPLITUDE

Measurement Range - Displayed average noise level to MAX safe input.

Input Attenuator Range -  

RF/Baseband Input - 0 dB to 50 dB, 5 dB step.

IQ Input (Opt. 03) - 0 dB to 30 dB, 10 dB step.

Input Attenuator Setting Uncertainty - ±0.5 dB (at 50 MHZ).

Maximum Safe Input Level -  

Average Continuous (RF band, RF ATT =10 dB) - +30 dB.

MAX DC Voltage -  

±0.2 V, RF

±5 V, Baseband

±5 V, IQ input w/ Opt. 03

Log Display Range - 10 µdB/div to 10 dB/div

Linear Display Scale - 10 divisions

Linear Display Units - dBm, dBµV, V, Watts, HZ for FM Demod, Degrees for PM Demod

Marker Readout Resolution, Log - 0.01 dB

Marker Readout Resolution, Linear - 0.001 µV

Frequency Response, 20 °C to 30 °C, RF ATT =10 dB

Frequency	Spec	Typical
100 KHZ - 40 MHZ	±0.5 dB	±0.3 dB
40 MHZ - 3.0 GHZ	±1.2 dB	±0.5 dB
3.0 GHZ - 6.5 GHZ*5	±1.7 dB	±1.0 dB
5 GHZ - 8 GHZ*5	±1.7 dB	± 1.0 dB

Absolute Amplitude Accuracy at Calibration Point (Baseband at 25 MHZ, -10 dBm signal, 0 dB ATT, 20 °C to 30 °C) - ±0.3 dB

Absolute Amplitude Accuracy at Calibration Point (RF at 100 MHZ, -20 dBm signal, 0 dB ATT, 20 °C to 30 °C) - ±0.5 dB

Reference Level Setting Range -  

1 dB step, RF, -50 dBm to +30 dBm

5 dB step, Baseband, -30 dBm to +20 dBm

5 dB step, IQ, -10 dBm to +20 dBm

Reference Level Accuracy (-10 dBm to -50 dBm at 100 MHZ, 10 dB ATT, 20 °C to 30 °C) - ±0.2 dB

Level Linearity in Display Range - ±0.2 dB, spec; ±0.12 dB, typical

SPURIOUS RESPONSE

1 dB Compression (RF ATT = 0 dB, 2 GHZ CF) - +2 dBm

3^rd Order Inter-modulation Distortion (Ref Level = +5 dBm, RF ATT: adjusted for optimum, total signal power = -7 dBm, CF = 2 GHZ) - -74 dBc

2^nd Harmonic Distortion (-30 dBm tone at input mixer, 10 MHZ to 1750 MHZ) - -56 dBc, typical.

Displayed Average Noise Level, Specified, dBm/HZ

Frequency	Spec
10 MHZ	-151
2 GHZ	-150
3 GHZ	-150
7 GHZ*5	-142

Displayed Average Noise Level, Typical, dBm/HZ

Residual Response

Spurious Response with Signal

Frequency	Spec
0 MHZ (Span =10 MHZ, Ref Lvl =0 dBm, RBW -50 KHZ, Signal Frequency =25 MHZ, Signal Level =-5 dBm)	-73 dBc
2 GHZ (Span =10 MHZ, Ref Lvl =0 dBm, RBW -50 KHZ, Signal Frequency =2 GHZ, Signal Level =-5 dBm)	-73 dBc
5 GHZ (Span =10 MHZ, Ref Lvl =0 dBm, RBW -50 KHZ, Signal Frequency =5 GHZ, Signal Level =-5 dBm)*5	-70 dBc
7 GHZ (Span =10 MHZ, Ref Lvl =0 dBm, RBW -50 KHZ, Signal Frequency =7 GHZ, Signal Level =-5 dBm)*5	-70 dBc

*⁵ Frequency >3 MHZ available on RSA3308A, WCA280A only

INPUTS AND OUTPUTS

Front Panel

Input Connectors - N type, RF/Baseband; BNC type, IQ, Opt. 03

Input Impedance - 50 O

VSWR, RF ATT >10 dB

Preamp Power Connector - LEMO 6 pin connector - Pin 1: NC; Pin 2: ID1; Pin 3: ID2; Pin 4: -12 V; Pin 5: GND; Pin 6: +12 V.

External Preamp (Opt. 1A) - 100MHZ - 3GHZ, 20 dB gain, 6.5 dB Noise Figure at 2 GHZ (Typical)

Rear Panel

10 MHZ REF OUT - 50 O, BNC, >-3 dBm

10 MHZ REF IN - 50 O, BNC, -10 dBm to +6 dBm

EXT TRIG IN - Ext Trig, BNC, High: 1.6 to 5.0 V, Low: 0 to 0.5 V

GPIB Interface - IEEE 488.2

TRIGGER OUT - 50 O, BNC, High: >2.0 V, Low: <0.4 V (output current 1 mA)

Side Panel

LAN Interface - Ethernet 10/100Base-T (Standard)

Serial Interface - USB 1.1, 2 ports

VGA Output - VGA compatible, 15 DSUB

General Characteristics

Temperature -

Operating: +10 °C to +40 °C.

Storage: -20 °C to +60 °C.

Warm-up Time - 20 min.

Altitude -  

Operating: up to 3000 m (10,000 ft.).

Non-operating: up to 12,000 m (40,000 ft.).

Safety and EMI Compatibility -

UL 61010-1; CSA C22.2 No. 61010-1-04; IEC61010, Second Edition (Self Declaration).

Low Voltage Directive 73/23/EEC, amended by 93/68/EEC; EN61010-1: 2001 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use.

EC Council EMC Directive 89/336/EEC, amended by 93/68/EEC.

EN61326-1: 1997 Product Family Standard for Electrical Equipment for Measurement, Control, and Laboratory Use-EMC Requirements.

Electromagnetic Compatibility Framework:1992 AS/NZS 2064.1/2(Industrial, Scientific, and Medical Equipment).

Power Requirements - 100 VAC to 240 VAC, 47 HZ to 63 HZ.

Power Consumption - 400 VA max.

Data Storage - Internal HDD (40 GB), USB port, FDD.

Weight, without options - 19 kg, 42 lbs.

Dimensions -  

Without bumpers and feet: 215 mm (H) × 425 mm (D) × 425 mm (W).

With bumpers and feet: 238 mm (H) × 470 mm (D) × 445 mm (W).

Calibration Interval - 1 year.

Warranty - 1 year.

GPIB - SCPI-compatible.