Vector Signal Generators - Rent & Buy Certified Used

In complex RF and wireless testing environments, precision isn’t a luxury—it’s a necessity. A vector signal generator offers that precision, delivering high-performance modulation for applications ranging from 5G and IoT to aerospace and defense systems. Whether you're simulating real-world conditions or validating signal integrity, this tool gives you full control over frequency, phase, and amplitude.

At Electro Rent, we provide access to industry-leading vector signal generators from trusted names like Keysight Technologies, Rohde & Schwarz, and Anritsu. Each unit is tested and configured to ensure accuracy, reliability, and seamless integration into your test bench anywhere within the Asia region.

Worried about cost? We’ve got you covered. With transparent vector signal generator price options, including rental and certified pre-owned options, you can tailor your investment to your project scope and budget. And if you’re managing multiple test requirements across teams or timelines, consider bundling with our test equipment rental service—giving you the flexibility to adapt and scale without overcommitting.

Whether you’re pushing boundaries in wireless communications or refining critical signal paths, our expert team ensures you’re equipped with the right solution.

Ready to generate results with precision? Contact us today to find your ideal vector signal generator.

Frequently Asked Questions 

1. What's the difference between a signal generator and a vector signal generator?  
   In comparison to general-purpose signal generators, vector signal generators have more advanced and complex capabilities. For example, while a regular signal generator only produces simple waveforms, vector signal generators can create electrical signals with amplitude and phase modulation and can vary the data rate of the signals. 
   
   Regular signal generators may offer some form of modulation such as AM or FM, but these capabilities are somewhat limited. This is why for some testing applications, engineers will instead choose a vector signal generator which can vary the modulation format of the signals by changing the type of modulation used such as QAM and QPSK, or by changing the bit rate of signal generation. 
   
   These advanced capabilities mean that VSGs are often more expensive than regular signal generators, which is why buying Certified Pre-Owned or renting a VSG is a great choice. Alternatively, you can browse our full range of RF and microwave signal generators.  
2. What should I consider when choosing a vector signal generator?
   When selecting a vector signal generator, it's important to make sure it has the capabilities to fit your application. Firstly, the signal generator's frequency range should cover the range of frequencies of your device under test. Secondly, it should support the types of modulation that you need to simulate real-world conditions that your device may encounter. 
   
   The accuracy of the generator and the amount of phase noise is another key consideration. The higher the accuracy, the more expensive the VSG tends to be, which is why rental or buying used generators can be a great solution. You also need to choose a generator that can generate signals at the data rate your communication system operates at. Finally, the output power in dBm is an important consideration – if the power output is too low you will not be able to effectively test the device but if it is too high it may damage the DUT. 
   
   In addition to these technical considerations, your choice of VSG will likely also depend on the model's price and ease-of-use.  
3. What are the best vector signal generators?
   Our independent experts have carefully selected used and new vector signal generators from industry-leading manufacturers such as Rohde & Schwarz, Keysight Technologies, Anritsu, and Spectracom. While the best RF signal generator for you will depend on your requirements and budget, you can be sure that the range we stock offers impressive and accurate performance. 
4. What's the typical frequency range of a vector signal generator?
   While the frequency range of vector signal generators can vary significantly between models, the majority of regular VSGs have a range of frequencies between several GHz to tens of GHz.  
5. What phase noise is typically present in VSGs? 
   Vector signal generators tend to have low phase noise, although the amount of unwanted phase noise can vary between different models and manufacturers. For example, the Keysight Technologies E8267D offers an impressive -120 dBc / Hz phase noise at a 10 kHz offset for a 10 GHz signal.  
6. What modulation formats are supported by the vector signal generator?
   A Vector Signal Generator can generate a variety of types of modulation formats: QPSK, QAM, OFDM and FSK. These are important for the generation of realistic communication signals, such as those in 5G, Wi-Fi, LTE, radar, etc. So, you should take a VSG which can generate the modulation formats that the DUT will face.
7. What is the maximum output power of a vector signal generator?
   The power output of a VSG is in the range of -130dBm to +30dBm, depending on the model. Make sure that the generator has enough power to effectively test the DUT. An output too low might not accurately replicate real-world turbulence, but too high results in damage to sensitive equipment.
8. Can the vector signal generator simulate real-world channel conditions such as noise and fading?
   Most recent VSGs are able to model real channel characteristics, like additive white Gaussian noise (AWGN), fading and Doppler shifts. This is crucial in the context of the validation of receivers and communication systems in highly dynamic reality scenarios such as mobile, satellite, wireless communication.
9. How accurate are the data rate and frequency settings on the vector signal generator?
   It is desirable that the tests have a high degree of accuracy for communication systems. Most high performance VSGs deliver data rate accuracy to the bit rate that is needed and will generally go from levels around kilobits (kbps) to gigabits (Gbps) per second. Seek out frequency accuracy (typically within ±1 ppm) and signal stability if you want reliable readings from your tests.
10. Does the vector signal generator support multi-channel or MIMO testing?
    For testing many modern communication systems such as 5G, LTE, or MIMO (multiple-input, multiple-output) systems, a VSG with support for multi-channel signal generation is paramount. This makes it possible to model spatial multiplexing, channel interference and other realistic wireless communications settings.
11. Why rent a vector signal generator? 
    For short and medium-term projects, renting a vector signal generator can be an ideal way to access top quality equipment without expensive purchase and ownership costs. RF vector signal generator rental includes rapid delivery and expert support, meaning you never have to worry about maintenance or issues with your signal generator. We offer flexible rental terms from one week to low-cost plans over multiple years, allowing you to pick the option that suits you. Plus, rapid worldwide delivery means you can get started with your project quickly. We also offer low-cost, long-term rental plans that make renal a money saving alternative to purchase for ongoing use. 
12. Why buy a used vector signal generator?
    Due to their advanced capabilities and features, vector signal generators tend to cost more than regular signal generators, and purchasing the right one for your application can be rather expensive. A more cost-effective path to ownership is buying a used VSG. Our Certified Pre-Owned vector signal generators are all carefully selected by the team and rigorously tested and calibrated in a 23-step calibration process. Purchasing used can be a great way to access high-performance VSG without the high upfront cost.