The Advantest R3261C is a compact, high-performance synthesized spectrum analyzer covering a frequency range from 9 kHz to 2.6 GHz. Featuring a high-resolution synthesizer with 1 Hz tuning, a 1 Hz resolution internal frequency counter, and 1 dB typical total level accuracy, it is highly optimized for precise RF design, manufacturing, and testing applications.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB |
| Display | 5.5-inch CRT |
| Warm-up Time | 30 minutes |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 / 120 / 220 / 240 VAC (selectable), 50/60 Hz, <=150 VA |
| Operating Temperature | 0°C to +50°C |
| Dimensions (W×H×D) | 300 mm x 177 mm x 460 mm |
| Weight | 15 |
Frequency
| Parameter | Value |
|---|---|
| Frequency Range | 9 kHz to 2.6 GHz |
| Tuning Resolution | 1 Hz |
| Frequency Counter Resolution | 1 Hz |
| Reference Frequency Aging Rate | +-2 x 10^-6 per year |
| Reference Frequency Temperature Stability | +-5 x 10^-6 (0°C to 50°C) |
| Frequency Span Range | 1 kHz to 2.6 GHz, Zero Span |
| SSB Phase Noise | ≤ -105 dBc/Hz @ 20 kHz offset |
| Residual FM | ≤ 20 Hz p-p / 0.1 s (Span ≤ 200 kHz) |
Amplitude
| Parameter | Value |
|---|---|
| Maximum Safe RF Input Level | +25 dBm |
| Maximum DC Input Voltage | +-25 V |
| Input Attenuation Range | 0 to 50 dB in 10 dB steps |
Bandwidth & Sweep
| Parameter | Value |
|---|---|
| Resolution Bandwidth (RBW) Range | 30 Hz to 1 MHz (1, 3 sequence) |
| Video Bandwidth (VBW) Range | 1 Hz to 1 MHz (1, 3 sequence) |
| Sweep Time Range | 50 ms to 1000 s |
Inputs & Outputs
| Parameter | Value |
|---|---|
| RF Input Connector Type | Type-N female |
| RF Input Impedance | 50 Ohm |
| External Reference Input | 10 MHz |
Sweep
| Parameter | Value |
|---|---|
| Trigger Modes | Free Run, Line, Single, Video, External |
Spurious Responses
| Parameter | Value |
|---|---|
| Second Harmonic Distortion | <-70 dBc (mixer level -30 dBm, frequency >= 10 MHz) |
| Third-Order Intermodulation | <-70 dBc (mixer level -30 dBm, frequency >= 10 MHz, 50 kHz separation) |
| Residual Response | <-100 dBm (frequency >= 10 MHz, 0 dB input attenuation) |
| Image Response | <-70 dBc |
| Multiple Response | <-70 dBc |
Amplitude Accuracy
| Parameter | Value |
|---|---|
| Frequency Response Flatness | +-1.5 dB (9 kHz to 2.6 GHz, 10 dB attenuation) |
| Calibration Output | 30 MHz, -20 dBm +- 0.3 dB |
Data Storage
| Parameter | Value |
|---|---|
| Internal Memory Capacity | Save/Recall of 10 panel settings and 10 trace waveforms |
| Memory Card Interface | JEIDA Ver. 4 memory card slot |
Signal Detection & Sweep
| Parameter | Value |
|---|---|
| Detection Modes | Normal, Peak, Sample |
System Functions
| Parameter | Value |
|---|---|
| Direct Plotting | Supported (GPIB direct output to HP-GL plotters) |
Technology
Synthesized Spectrum Analyzer
Applications
RF Signal Analysis
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