Description
Controlling qubits takes several microwave tones that keep a fixed phase relationship. The Keysight AP5012A signal generator supplies up to four phase-coherent channels in a 1U enclosure. Its configured range spans 300 kHz to 40 GHz. Lost in HCM lists it for rental and sale, so a research group can rent it for an experiment or buy it outright.
Four channels that stay in step
Phase-coherent channels share a common timing, so their relationship does not wander. Each channel has independent frequency, phase and amplitude control. Phase memory and fast switching also help build repeatable frequency-hopping signals. As a result, one instrument can replace a shelf of separate sources. The 1U case also takes little rack height.
Keysight AP5012A signal generator specifications
| Item | Value |
|---|---|
| Frequency range | 300 kHz to 40 GHz, as configured |
| RF outputs | Up to 4 phase-coherent channels |
| Output power at 1 GHz | +24 dBm |
| Phase noise, 1 GHz, 20 kHz offset | -130 dBc/Hz |
| Harmonics at 1 GHz | -40 dBc |
| Frequency switching speed | 25 microseconds with option UNZ |
| Form factor | 1U enclosure |
Automation and references
API examples and external-reference support simplify integration with automated research systems. Therefore a lab can script the channels and tie them to one external reference. However, the 25 microsecond switching figure applies with option UNZ, so check that option in the quote. The output reaches +24 dBm at 1 GHz, and phase noise at a 20 kHz offset is -130 dBc/Hz.
Where coherent sources help
Quantum-computing qubit control is one clear fit for the Keysight AP5012A signal generator. Radar and satellite payload testing also benefits, because several channels can stand in for a multi-source setup. Multi-channel receiver and phased-array validation come next, while coherent frequency and phase research rounds out the list. Count the channels you need before you order, because the unit offers up to four. Then confirm the frequency options for each one.
Rent for an experiment, or buy
A rental fits a funded study with a clear end date, while a purchase fits a lab that reruns the setup every week. In both cases, request a quote from Lost in HCM and state the channel count, options and delivery site. You can also see other signal generators, visit Keysight or contact SMK Vietnam.
AP5012A questions
How many channels does it offer?
It offers up to four phase-coherent channels, so confirm the count in your quote.
What does option UNZ change?
The 25 microsecond switching figure applies with option UNZ.
Can I automate it?
Yes, because API examples and external-reference support are listed for automated research systems.

















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