UNI-T USG3045M-P RF Signal Generator with Mechanical Attenuator
High-Performance RF Testing Solution with Enhanced Output Power (9 kHz to 4.5 GHz)
The UNI-T USG3045M-P delivers exceptional RF signal generation with mechanical attenuation for superior output power and stability. Operating from 9 kHz to 4.5 GHz with ultra-low phase noise, this premium instrument is engineered for demanding RF testing applications in telecommunications, aerospace, automotive, and research environments where higher output power is essential.
Premium Features and Advantages
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Mechanical Attenuator: Premium mechanical attenuation system for superior output power stability
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Enhanced Output Power: Delivers up to +24 dBm output for driving high-power components
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Extended Frequency Range: Generate precision signals from 9 kHz to 4.5 GHz with 0.001 Hz resolution
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Exceptional Level Control: Wide dynamic range from -135 dBm to +24 dBm with outstanding accuracy
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Superior Signal Clarity: Ultra-low phase noise (< -122 dBc/Hz @ 1 GHz, 20 kHz offset) for demanding applications
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Comprehensive Modulation: Standard AM, FM, and ΦM capabilities with flexible configuration options
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User-Friendly Interface: Intuitive 5-inch capacitive touchscreen with logical menu structure
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Versatile Connectivity: LAN, USB, and optional GPIB interfaces for seamless integration
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Integrated 50 MHz Function Generator: Added functionality for creating complex test signals
Optimal Applications
Wireless Communications Testing
The USG3045M-P's high output power and low phase noise make it ideal for testing receivers, transmitters, amplifiers, and RF components for various wireless systems. The mechanical attenuator ensures stable and reliable output levels for repeatable measurements.
Aerospace and Defense
Test radar systems, transponders, and communication equipment with precise amplitude control and clean spectral performance. The mechanical attenuator provides the stability required for critical defense applications.
Automotive Electronics
Validate automotive radar, wireless systems, and RF components with accurate, stable test signals. The enhanced output power accommodates testing of automotive RF subsystems requiring higher drive levels.
Research and Development
Support advanced RF circuit development with accurate, stable signal generation. The high output power capabilities enable testing components at their intended operating levels without additional amplification.
Production Testing
Integrate into automated test systems for reliable, repeatable measurements in manufacturing environments. The mechanical attenuator ensures long-term stability for continuous operation.
Detailed Technical Specifications
| Parameter |
Specification |
| Frequency Range |
9 kHz to 4.5 GHz |
| Frequency Resolution |
0.001 Hz |
| Phase Offset |
Step of 0.1° |
| Output Level Range |
-135 dBm to +24 dBm (frequency dependent) |
| Amplitude Accuracy |
≤ 0.7 dB (typical) |
| Mechanical Attenuator |
0 to 110 dB, 10 dB step |
| Phase Noise |
<-122 dBc/Hz @ 1 GHz, 20 kHz offset (typical) |
| Harmonics |
≤ -50 dBc (10 MHz to 1 GHz), ≤ -40 dBc (1 GHz to 4.5 GHz) |
| Non-harmonics |
≤ -65 dBc (250 MHz to 4.5 GHz) |
| Modulation Types |
AM, FM, ΦM (standard); Pulse (optional) |
| Display |
5-inch capacitive multi-touch screen (800×480) |
| Connectivity |
LAN (10/100/1000 Base, RJ-45), USB Device, USB Host |
| Optional Interfaces |
GPIB (IEEE-488.2) |
| Power Supply |
100 to 240 VAC, 50/60 Hz, <50 W |
| Dimensions (H×W×L) |
426mm × 88mm × 400mm |
| Weight |
<20 kg |
| Calibration Period |
One year |
Maximum Output Power Specifications
| Frequency Range |
Maximum Output Power |
| 9 kHz to 5 MHz |
+15 dBm |
| >5 MHz to 250 MHz |
+20 dBm |
| >250 MHz to 1.2 GHz |
+24 dBm |
| >1.2 GHz to 3.6 GHz |
+22 dBm |
| >3.6 GHz to 4.5 GHz |
+20 dBm |
Advanced Capabilities
Precise Sweep Functions
Perform comprehensive frequency and amplitude characterization with multiple sweep modes:
- Linear and logarithmic frequency sweeps
- Step and continuous amplitude sweeps
- User-defined list sweeps with up to 500 points
- Multiple triggering options including auto, key, external, and bus triggers
Sophisticated Modulation
Create complex test signals with flexible modulation options:
- AM with depth up to 99% and 0.1% resolution
- FM with maximum offset up to 10 MHz
- ΦM with maximum offset up to 5 radians
- Internal, external, or combined modulation sources
Optional Pulse Modulation (USG3000M-PM)
Add pulse modulation capabilities with:
- On-off ratio of up to 80 dB
- Rising/falling times <20 ns (typical)
- Multiple pulse modes including free-run, triggered, doublet, and gated
- Customizable pulse trains for complex signal simulation
Optional Narrow Pulse Generator (USG3000M-PG)
Enhance pulse capabilities with:
- Minimum pulse width of 20 ns
- 10 ns resolution
- Pulse period from 40 ns to 42 s
- Ideal for radar and high-speed digital system testing
Model Comparison: USG3045M-P vs. Other Models
| Feature |
USG3045M |
USG3045M-P |
USG3065M |
USG3065M-P |
| Frequency Range |
9 kHz to 4.5 GHz |
9 kHz to 4.5 GHz |
9 kHz to 6.5 GHz |
9 kHz to 6.5 GHz |
| Mechanical Attenuator |
No |
Yes |
No |
Yes |
| Max. Power (250 MHz to 1.2 GHz) |
+20 dBm |
+24 dBm |
+20 dBm |
+24 dBm |
| Max. Power (1.2 GHz to 3.6 GHz) |
+18 dBm |
+22 dBm |
+18 dBm |
+22 dBm |
| Max. Power (3.6 GHz to 4.5/6.5 GHz) |
+15 dBm |
+20 dBm |
+15 dBm |
+20 dBm |
| SWR (≤1.0 GHz, Above 15 dB atten.) |
<1.5:1 |
<1.5:1 |
<1.5:1 |
<1.5:1 |
Optional Accessories and Enhancements
| Item |
Description |
Order No. |
| Pulse Modulation |
Adds comprehensive pulse modulation capability |
USG3000M-PM |
| Narrow Pulse Generator |
Enables generation of narrow pulses down to 20 ns |
USG3000M-PG |
| Power Meter Kit |
Provides power measurement, output control, and calibration |
USG3000M-PK |
| GPIB Interface |
Adds IEEE-488.2 connectivity for system integration |
USG3000M-GPIB |
| RF Cable |
SMAJ-NJ-0.7M DC-6G cord for reliable connections |
UT-W02-6GHz |
| RF Cable |
NJ-NJ-0.7M DC-6G cord for flexible system configurations |
UT-W01-6GHz |
| Adapter Kit |
Set of SMA and N-type adapters for various connection needs |
UT-C01-6GHz, UT-C02-4GHz |
| Accessories Pouch |
Convenient storage for cables and adapters |
UT-CK01 |
Standard Package Includes
- USG3045M-P RF Signal Generator
- Country-specific power cord
- USB data cable (UT-D14)
- Calibration certificate
- User manual
- Quick start guide
Warranty Information
UNI-T guarantees the USG3045M-P against defects in materials and workmanship for three years from purchase. Accessories are warranted for one year.
Regular calibration is recommended every 12 months to maintain optimal performance and measurement accuracy.
Why Choose the USG3045M-P?
The USG3045M-P represents an optimal balance of performance, features, and value for professionals requiring high-quality RF signals with enhanced output power. The mechanical attenuator provides superior level stability and higher maximum output, critical for applications involving power amplifiers, attenuators, and systems requiring stronger drive signals.
For applications beyond 4.5 GHz, consider the USG3065M-P, which extends the frequency range to 6.5 GHz while maintaining all the premium features and benefits of the USG3045M-P.
