Signal generator for RandD, aerospace and defence

A Saelig product story
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Edited by the Electronicstalk editorial team Feb 2, 2011

Saelig has introduced Apsin20G, a low-noise, ultra-fast-switching microwave signal generator covering a frequency range from 10MHz up to 20GHz, which simplifies synchronising within test environments.

It provides micro-Hz frequency resolution, a wide and flat output power range to 30dBm and very low spurious levels.

Comprehensive AM, low-distortion, wideband DCFM and high-speed pulse modulation allows for testing a wide range of receivers.

Apsin20G's powerful trigger and sweeping modes can be controlled via standard interfaces such as USB-TMC, LAN and GPIB, and can operate from an optional internal rechargeable battery.

Advanced frequency synthesis with a fractional-N divider makes for low SSB-phase noise and micro-Hz frequency resolution.

Apsin20G includes AM, DC-coupled wideband-FM, PM, FSK and PSK, frequency chirp and pulse modulation as standard, with the option for all modulation modes to be combined.

All modulation modes can be combined, allowing for the generation of complex modulation signals for modern communication and location systems.

The combination of pulse modulation and FM, for instance, can simulate Doppler effects or chirp signals; simultaneous AM and pulse modulation replicates pulse-radar applications with rotating antenna; and FM/AM combinations can be used to check fading effects of FM receivers.

Apsin20G features a fast 200us frequency switching time, as well as very low SSB phase noise.

The unit provides fast analogue and digital sweeps including flexible list sweeps, where frequency, power and dwell times can be set individually.

A flexible triggering capability simplifies synchronisation within test environments.

Apsin20G features an ultra-stable temperature-compensated 100MHz reference (OCXO) to insure minimal drift but it can be phase-locked to almost any stable external reference in a range from one to 200MHz.

The lower frequency limit can optionally be expanded to 100 kHz.

In addition, there is provision for attaching a USB power sensor.

Apsin20G offers a reliable alternative to expensive high-end microwave signal generators, where small size, attractive cost and excellent microwave performance with versatile modulation is essential.

Measuring 172 x 220 x 106mm, it is compact and lightweight and will find applications in areas such as: RandD low-noise signal source; production testing; service and maintenance; signal simulation (Radar, WiMax, UWB); aerospace and defence (Pulse modulator, Chirps); and so on.

Swiss-made by Anapico, a designer of RF sources and sampling systems, Apsin20G is available now from $14,600 (?9,179) from its US distributor Saelig.

Find out more about this article. Request a brochure, download technical specifications and request samples here.
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Company Saelig

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