Description
Phase noise sets the limit on what a receiver test can prove, and this source keeps it low. The Keysight N5181B signal generator is an MXG analog instrument that covers 9 kHz to 6 GHz as configured. Lost in HCM lists it for rental and sale, so you can borrow it for a project or buy it outright.
Key figures
| Frequency range | 9 kHz to 6 GHz, as configured |
|---|---|
| Output power at 1 GHz | 24 dBm headline value |
| Phase noise at 1 GHz, 20 kHz offset | -146 dBc/Hz |
| Harmonics at 1 GHz | -35 dBc |
| Frequency switching speed | 800 microseconds |
| RF outputs | 1 |
Why a quiet carrier helps
A noisy carrier smears the signal your receiver should see. As a result, sensitivity and blocking tests can show faults that belong to the source, not the device. With -146 dBc/Hz at a 20 kHz offset, this Keysight N5181B signal generator leaves more room for the device to show its own limits. Low spurious output helps in the same way, and oscillator tests benefit too.
Power for amplifier and component work
Strong output helps overcome loss in cables and switches, so you can still reach the level your device needs. It also helps when you drive a power amplifier for a measurement. Harmonics sit at -35 dBc at 1 GHz, so add a filter if your test is sensitive to them. AM, FM, phase and pulse modulation options then simulate practical analog signals.
Secure labs and automated systems
The instrument offers removable memory for secure laboratories. Remote interfaces also let a test program drive the source. With 800 microsecond switching, a station can step through a frequency list quickly.
Jobs for the Keysight N5181B signal generator
- Receiver sensitivity and blocking tests.
- Power-amplifier and RF component characterization.
- Radar, communications and aerospace stimulus work.
- Automated manufacturing stations that need a stable source.
Ordering through Lost in HCM
Lost in HCM quotes after you confirm the frequency option, output power, attenuator, modulation and connector. It can also quote the replacement N5185A or an equivalent RF source, subject to availability. Rental fits a defined project, while a purchase fits a lab that needs the source every week. To order one, request a quote from Lost in HCM. SMK Vietnam only lists the product. You can also compare other signal generators, read the Keysight website or contact SMK Vietnam.
N5181B questions
Is 6 GHz standard on the N5181B?
Not always. The frequency range, output power, attenuator, modulation and timebase functions depend on the installed options.
How low is its phase noise?
The headline figure is -146 dBc/Hz at 1 GHz with a 20 kHz offset.
Can I buy a new or used one?
Yes. Lost in HCM can quote new, premium-used, replacement N5185A and equivalent RF sources, subject to availability.
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