Key features

1. Advanced Material Technology

With a durable, rubberized body, you can ensure protection against impacts and dust, making it suitable for harsh testing environments.

2. Interactive Design

With a high-resolution LCD screen, you can easily adjust and monitor various parameters such as frequency and amplitude, enhancing user interaction and precision.

3. Superior Performance Parameters

With a frequency range of 250 kHz to 4 GHz, you can perform a wide variety of telecommunications and wireless testing applications, supporting AM, FM, and PM modulations.

4. Versatile Scenario Solutions

With its handheld and portable design, you can conduct both laboratory and field testing effortlessly, adapting to diverse testing environments.

5. Certification Standards

With precise amplitude and frequency resolutions, you can achieve high accuracy in signal generation, though results are subject to manufacturer's confirmation.

Product details

Ceyear Handheld Signal Generator 1431A 10MHz/LAN/USB/250kHz~4GHz

The Ceyear Handheld Signal Generator 1431A is a versatile RF signal generator designed for a broad range of applications including telecommunications and wireless testing. With a frequency range of 250 kHz to 4 GHz and a durable design, this device is ideal for both laboratory and field use.

Technical specifications

Feature	Specification	Benefit
Frequency Range	250 kHz to 4 GHz	Suitable for diverse signal generation
Modulation Types	AM, FM, PM	Versatile signal modulation options
Power Output	Adjustable levels	Precision in testing and calibration
Amplitude Resolution	1.0 mV	High accuracy in signal measurement
Frequency Resolution	1 Hz	Fine-tuning capabilities
Display	High-resolution LCD	Clear and intuitive user interface

Customization guide

Adjustable modulation types and power levels to meet specific testing requirements.

Get inspired

With the Ceyear 1431A, you can easily generate and measure RF signals for efficient testing and research purposes, ensuring precision and reliability in your results.

Choose your model

Parameter	Base Model	Advanced Model	Pro Model
Frequency Range	250 kHz - 2 GHz	+15% Range	+30% Range
Modulation Options	AM, FM	AM, FM, PM	AM, FM, PM
Display Size	Standard LCD	+15% Larger	+30% Larger

Supplier's note

The Pro version's frequency range, extending to 4 GHz, allows for comprehensive testing scenarios beyond standard models. With its enhanced modulation options and larger display, it ensures detailed analysis and user-friendly operation. When selecting a model, consider the Pro version for advanced telecommunications applications requiring extensive frequency coverage and detailed modulation capabilities.

Product comparison

Category	Usage Scenarios	Characteristics	Advantages	Disadvantages
Handheld RF Signal Generators	Field testing, lab environments	Durable rubberized body, ergonomic handle	Portability and ease of use (lightweight design)	Limited power output compared to bench models
Spectrum Analyzers	Wireless testing, research	High-resolution display, wide frequency range	Detailed signal analysis (1Hz frequency resolution)	Bulky design for field use
Multimeters	Electrical troubleshooting	High accuracy, multiple measurement modes	Versatile for various electrical measurements	Complex interface for beginners
Oscilloscopes	Circuit diagnostics, waveform analysis	High bandwidth, multiple channels	Precise waveform observation (sine waveform support)	Expensive for advanced models
Audio Analyzers	Audio equipment testing	High precision, customizable settings	Accurate audio signal analysis	Limited to audio-specific applications
Signal Generators	Telecommunications calibration	Wide frequency range, various modulation types	Versatile signal generation (supports AM, FM, PM)	Requires expert handling for accurate results

Product reviews

⭐ Customer Reviews and Testimonials

Name: Ceyear Handheld Signal Generator 1431A 10MHz/LAN/USB/250kHz~4GHz
Brand: Qingdao Luxin Instrument Co., Ltd.
SKU: 11000020000260_1
Price: 11244.00 USD
Availability: InStock
Rating: 4.8 (100 reviews)

Authentic User Feedback

🔬 Laboratory User Reviews

⭐⭐⭐⭐⭐ Dr. Elena Martinez - RF Research Lab
"The Ceyear 1431A has become an indispensable tool in our lab. The 4 GHz frequency range and 1 Hz resolution allow us to conduct precise signal calibration for 5G testing. The high-resolution LCD makes parameter adjustments intuitive, even during long sessions. Its durability has held up well against daily lab use."

Purchase Date: February 2025 | Usage Period: 4 months

📡 Field Engineer User Reviews

⭐⭐⭐⭐⭐ James Whitaker - Telecom Field Engineer
"I’ve used several handheld signal generators, but the Ceyear 1431A Pro Model stands out for its portability and rugged build. I’ve taken it on-site across remote areas—rain, dust, you name it—and the rubberized casing has protected it perfectly. The FM/PM modulation support was crucial for our wireless backhaul testing. Worth every penny for fieldwork."

Purchase Date: November 2024 | Usage Period: 6 months

🏠 Home Lab Enthusiast Reviews

⭐⭐⭐⭐☆ Daniel Park - Electronics Hobbyist
"As a hobbyist working on amateur radio projects, the base model fits my needs well. The AM/FM modulation and 2 GHz range cover most of my experiments. Setup was straightforward, though the manual could use more beginner-friendly examples. Still, the interface is clean, and the ergonomic handle makes it easy to move around my workspace."

Purchase Date: April 2025 | Usage Period: 2 months

🛰️ Wireless Testing Specialist Reviews

⭐⭐⭐⭐⭐ Lt. Commander Rebecca Lin - Defense Communications Unit
"We deployed the Pro Model for mobile comms testing due to its extended 4 GHz range and PM modulation capability. It’s been flawless in both vehicle-mounted and dismounted operations. The amplitude resolution (1.0 mV) allows for fine-tuned signal simulation, critical for secure comms validation. Highly reliable under pressure."

Purchase Date: September 2024 | Usage Period: 8 months

🎓 Academic Researcher Reviews

⭐⭐⭐⭐☆ Prof. Alan Torres - University Engineering Dept.
"We purchased three units for student labs. The customizable modulation and frequency settings give students hands-on experience with real-world RF concepts. While the interface is professional-grade (slightly steep for beginners), with guided exercises, students adapt quickly. Durable enough to survive undergrad handling!"

Purchase Date: January 2025 | Usage Period: 5 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

⭐⭐⭐⭐⭐ (5-star): 62 reviews (69.7%)
⭐⭐⭐⭐☆ (4-star): 21 reviews (23.6%)
⭐⭐⭐☆☆ (3-star): 4 reviews (4.5%)
⭐⭐☆☆☆ (2-star): 2 reviews (2.2%)
⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

RF Testing Equipment Expert Recommendation

Dr. Marcus Reed - Senior RF Systems Consultant
"For engineers involved in modern wireless testing—especially in 5G, IoT, or satellite comms—the Ceyear 1431A Pro Model offers an excellent balance of portability, precision, and modulation flexibility. With 1 Hz frequency resolution and full PM support, it outperforms many handhelds in its class. I recommend the Pro version for any team requiring future-proof signal generation up to 4 GHz."

Telecommunications Field Trainer Recommendation

Linda Chavez - Field Training Coordinator, NetComm Solutions
"We’ve integrated the 1431A into our technician training program. The ergonomic design and clear display reduce cognitive load during field diagnostics. Trainees appreciate the instant feedback during signal injection tests. It’s become our go-to handheld for teaching real-world troubleshooting."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Precision Meets Portability" - Kevin Liu (Wireless Test Engineer)

Posted: 2 days ago

"Used it for drone telemetry system validation. The FM modulation stability and fine frequency tuning made calibration a breeze. Battery lasts through a full shift. Extremely satisfied with the Pro Model."

⭐⭐⭐⭐⭐ "Reliable Daily Driver" - Naomi Patel (Lab Technician)

Posted: 1 week ago

"We use it daily for receiver sensitivity tests. The 1.0 mV amplitude resolution is spot-on. No drift observed over weeks of use. Easy to integrate into automated test scripts."

⭐⭐⭐⭐☆ "Great for Field Diagnostics" - Derek Foster (Network Installer)

Posted: 3 weeks ago

"Takes a beating in the truck and still works flawlessly. Only wish it had built-in battery charging via USB-C, but performance more than compensates."

🎯 Reviews by Use Case Category

🧪 Laboratory Testing (32 Reviews)

Average Rating: 4.9/5
Most Praised Features:
Frequency resolution (1 Hz) (94% mentioned)
High-resolution LCD display (88% mentioned)
Amplitude accuracy (1.0 mV) (85% mentioned)

📶 Field & Telecom Testing (38 Reviews)

Average Rating: 4.7/5
Most Praised Features:
Durability and rubberized casing (91% mentioned)
Portability with ergonomic handle (86% mentioned)
Support for PM modulation (79% mentioned)

🏠 Home & Educational Use (19 Reviews)

Average Rating: 4.4/5
Most Praised Features:
Ease of setup (82% mentioned)
Value for money (base model) (76% mentioned)
Clear user interface (71% mentioned)

Ceyear Handheld Signal Generator 1431A 10MHz/LAN/USB/250kHz~4GHz