Single or Dual output on generator ?

[vidalv]

Hello all,
I am trying to acquire a new signal generator. There are different types and models, but I wonder the usefulness of a single or dual output.
Is the price difference an advantage or just a gadget?
What are the benefits of a double outing?
Please enlighten me on the subject!
Regards.
Vincent.

 

[raptorpowersystems]

When deciding between a single-output or dual-output signal generator, the choice depends on your specific needs and applications. Here are some considerations that can help guide your decision:

Single-Output Signal Generator

Price Advantage: Single-output signal generators are generally more affordable. If your work or testing only requires generating one signal at a time, then a single-output generator might be sufficient.

Simplicity: Easier to use if you only need to generate one signal, making it ideal for simpler applications such as basic RF (radio frequency) testing, clock generation, and modulation tasks.

Applications: Ideal for basic tasks such as testing one circuit at a time or where signal mixing is not necessary.

Dual-Output Signal Generator

Multiple Signal Generation: Allows for simultaneous generation of two signals, which can be useful for more complex testing scenarios. You can test multi-channel systems or generate two different frequencies at once.

Phase Coherence: Dual-output generators can offer phase-locked signals, which is critical for applications that require signal synchronization, such as phased array antenna testing or quadrature signals for mixers and modulators.

Mixed Signal Testing: In some applications, such as simulating interference or cross-talk, having two independent outputs can simulate two different sources affecting the system under test.

Versatility: Allows for creating more complex waveforms (e.g., frequency sweeps or modulations involving two signals).

Cost: Dual-output models are generally more expensive, but the added functionality can save costs in the long run if your work requires two signals.

Is the Price Difference Worth It?

- If your testing or design work regularly requires more than one signal, such as in communication systems, radar, or multi-channel applications, the dual output is likely worth the cost.

- If you only need a second signal occasionally or for future use, consider whether the extra investment will bring value to your work or if a more affordable single-output generator will suffice.

 

[vidalv]

Hello and thanks @raptorpowersystems for your clear explanations !
I don't need mixed signal for my basic operation, more of the time I need to use it for BF and not RF. Thanks again.