The Rohde & Schwarz CBT32 is a compact, headless Bluetooth tester optimized for automated production environments. Designed as a 2 HU 19-inch rackmount unit, it provides fast, reliable, and comprehensive RF tests on Bluetooth devices, supporting Basic Rate (BR), Enhanced Data Rate (EDR), and Low Energy (LE) connections with optional hardware and software extensions.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488.2), LAN (Ethernet), USB, RS-232 |
| Display | None (headless 19-inch rackmount instrument) |
| Warm-up Time | 30 min |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 V to 240 V AC, 50 Hz to 60 Hz / 400 Hz |
| Operating Temperature | +5 °C to +45 °C |
| Dimensions (W×H×D) | 427 mm × 97 mm × 426 mm |
| Weight | 6 kg |
| Form Factor | 19" rackmount, 2 HU |
RF Hardware Performance
| Parameter | Value |
|---|---|
| Frequency Range | 2.400 GHz to 2.485 GHz |
| RF COM Output Power Range | -120 dBm to 0 dBm |
| RF OUT Output Power Range | -120 dBm to +13 dBm |
| RF COM Input Power Range | -60 dBm to +30 dBm |
| RF Output Power Resolution | 0.1 dB |
| VSWR at RF COM Port | < 1.2 |
| VSWR at RF OUT Port | < 1.3 |
| Reference Frequency Input | 10 MHz (BNC) |
| Reference Frequency Output | 10 MHz (BNC) |
Bluetooth Technology Support
| Parameter | Value |
|---|---|
| Supported Specifications | v1.1, v1.2, v2.0 + EDR, v2.1 + EDR, v3.0 + HS, v4.0, v4.1, v4.2 (option dependent) |
| Basic Rate (BR) Support | Yes |
| Enhanced Data Rate (EDR) Support | Yes (with CBT-K55 option) |
| Bluetooth Low Energy (LE) Support | Yes (with CBT-K57 option) |
| LE 1M PHY Support | Yes |
| LE 2M PHY Support | No |
Transmitter (TX) Measurement Parameters
| Parameter | Value |
|---|---|
| Nominal Output Power | Yes |
| Peak Power | Yes |
| Modulation Characteristics df1avg | Yes |
| Modulation Characteristics df2max | Yes |
| Modulation Characteristics df2avg Ratio | Yes |
| Initial Carrier Frequency Tolerance (ICFT) | Yes |
| Carrier Frequency Drift | Yes |
| EDR Relative Transmit Power | Yes (with CBT-K55 option) |
| EDR Carrier Frequency Stability and DEVM | Yes (with CBT-K55 option) |
| EDR Differential Phase Encoding | Yes (with CBT-K55 option) |
| EDR In-Band Spurious Emissions | Yes (with CBT-K55 option) |
| LE In-Band Spurious Emissions | Yes (with CBT-K57 option) |
Receiver (RX) Measurement Parameters
| Parameter | Value |
|---|---|
| Single-slot Sensitivity (BER/PER) | Yes |
| Multi-slot Sensitivity (BER/PER) | Yes |
| Maximum Input Level | Yes |
| LE Receiver Sensitivity | Yes (with CBT-K57 option) |
| Packet Error Rate (PER) Report Accuracy | Yes |
Signaling and Connection Modes
| Parameter | Value |
|---|---|
| Connection Establishment | Yes (Signaling Mode) |
| Direct Test Mode (DTM) | Yes (Non-signaling Mode) |
| Loopback Test Mode | Yes |
| Audio Link Support | Yes (SCO, eSCO with CBT-B41 option) |
| Speech Codecs Support | CVSD, A-law, μ-law (with CBT-B41 option) |
Audio Generator and Analyzer
| Parameter | Value |
|---|---|
| Audio Channels | 1 input channel, 1 output channel (with CBT-B41 option) |
| Audio Generator Frequency Range | 20 Hz to 20 kHz (with CBT-B41 option) |
| Audio Analyzer Input Voltage Range | up to 10 V RMS (with CBT-B41 option) |
System Interfaces & Connectivity
| Parameter | Value |
|---|---|
| Primary RF Input/Output Port | RF COM (N-type female) |
| Secondary RF Output Port | RF OUT (N-type female) |
| GPIB Interface | IEEE-488.2 |
| LAN Interface | 10/100 Base-T (RJ-45) |
| USB Ports | Type A (host), Type B (device) |
| Serial Port | RS-232-C (9-pin D-Sub) |
| Trigger Input/Output Ports | BNC female |
Control & Software Features
| Parameter | Value |
|---|---|
| Command Set | SCPI compatible |
| Control Software | R&S CBTGO |
Power, Environmental & Physical
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 °C to +70 °C |
| Cooling | Forced-air (fan-cooled) |
Standards, Compliance & Calibration
| Parameter | Value |
|---|---|
| Calibration Interval | 1 year |
Reference Frequency
| Parameter | Value |
|---|---|
| Internal Reference Frequency Aging | 1 × 10^-6 per year (standard) / 1 × 10^-7 per year (with Option CBT-B1) |
| Internal Reference Frequency Temperature Drift | 1 × 10^-6 (0 °C to 50 °C, standard) / 1 × 10^-8 (with Option CBT-B1) |
RF Ports
| Parameter | Value |
|---|---|
| RF Port Impedance | 50 Ω |
Compliance
| Parameter | Value |
|---|---|
| EMC Compliance | In line with EN 61326-1 (Class A), EN 55011 (Class A) |
| Safety Compliance | In line with EN 61010-1 |
Power Supply
| Parameter | Value |
|---|---|
| Power Supply Frequency | 50 Hz to 60 Hz / 400 Hz |
| Max Power Consumption | 120 W |
Audio Analyzer
| Parameter | Value |
|---|---|
| Audio Analyzer Frequency Range | 10 Hz to 20 kHz |
Audio Generator
| Parameter | Value |
|---|---|
| Audio Generator Output Impedance | < 10 Ω |
Technology
Bluetooth Test Equipment
Applications
Automated Production RF Testing