Silvertone Electronics VSG200 20GHz vector signal generator

The VSG200 features a low phase noise, agile local oscillator with 200 µs switch time, enabling frequency hopping spread spectrum testing. A dual 14-bit DAC runs at 2x or 3x the I/Q symbol rate using digital oversampling to provide a flat, clean baseband; and a digitally adjustable internal VCTCXO keeps frequency errors to a minimum over temperature, or an external 10 MHz input may be used for zero ppm frequency error. A trigger output is also available to synchronise the VSG200 with other test equipment.

There are a range of modulation types available, including LTE, 802.11a/n/ac/ax, Bluetooth LE, Custom OFDM, 16/64/256/1024-QAM, 2/4/8/16-PSK, 2/4/8/16-FSK, ASK, GMSK, AWGN channels, ramp/chirp, stepped sweep, multi-tone, pulse, FM, AM, CW and arbitrary/custom.

The vector signal generation also supports digital modulation impairments, including channel effects, noise, timing and frequency offsets, amplitude variations and I/Q imbalance.

Users can also utilise the API to continuously stream custom I/Q data to the VSG200 at arbitrary sample rates up to 51.2 Msps. The external trigger output can be used to synchronise multiple instruments for complex measurement setups. Users can also take advantage of the 10 MHz timebase input to ensure frequency coordination between all lab equipment.