Spectral Purity Receiver measurements require good spectral purity from a signalgenerator. The 3410 series has excellent performance with typically 1.5 Hz residual FM at 1 GHz and a floor noise of typically better than-148 dBc / Hz. The electronic attenuator is ideal for high volume applications whereattenuator life is critical. A user defined RF level limit can be entered to ensure that the signal generator cannot provide damaging signal levels when testing less robust components. Careful attention to the level control system guarantees that positive level transients cannot be generated. The fast responding electronic reverse power protection system helps ensure long life and high reliability when testing high power systems. Frequency and Level Setting Times Fast frequency and RF level setting times are key parameters inachieving minimum test execution times and therefore maximumthroughput, in production environments. The 3410 series with typi-cal frequency setting times of 2 ms and level setting times of 2.5 ms provide outstanding performance.In addition to comprehensive sweep functions for carrier frequency,RF level and modulation oscillator manufacturer 3410 series provides an extremelyfast optional sweep mode for frequency and level settings through the use of user stored lists. Option 010, List Mode has a setting time of less than 500 µs and is ideal for frequency hopping and semi-con-ductor production applications. Modulation Comprehensive modulation facilities are provided for supporting thetesting of analog or digital RF systems. A single key professional press turns themodulation on and off, providing a fast method for signal to noisechecking.
Typical 3GPP 2 carrier test model 1 (64 channels) Analog Modulation With typical AM bandwidth to 30 MHz and typical FM bandwidth to20 MHz, the 3410 series signal generators are ideal tools for testing broadcast systems. The wide bandwidths allow video signals to mod- ulate the carrier with minimal distortion. The wideband FM facilities allow the generation of fast-swept sig-nals, while the use of a patented DC FM system ensures that carrierfrequency errors when the FM is DC coupled are minimal. The specifications for AM are maintained to high carrier frequenciesto support the use in modern EMC testing applications. The signalgenerator maintains excellent phase noise performance even whengenerating wideband modulated signals. Modulation Modes Vector Modulation Modulation Oscillator The built-in IQ modulator provides state-of-the-art vector modulat-ed signals with excellent level linearity, low vector error and low noise. With a typical vector bandwidth up to 55 MHz, the modulator is ableto support wideband as well as narrow-band wireless standards.Internal calibration systems ensure the modulator performance can be quickly optimized to reduce vector errors and ensure low carrierleak at all operating frequencies.The linearity of the modulator and the RF output system is reflectedin the excellent adjacent channel power when generating multi-carri- er non-constant envelope signals such as cellular CDMA and TETRA. An internal modulation oscillator is provided which can be used togenerate two tones in the frequency range 0.1 Hz to 50 kHz (16 MHzwith Option 005 ARB Waveform Generator). In addition to sine waves, the modulation oscillator can provide square waves, triangularand sawtooth waveforms for narrow band sweeping. Digital Modulation The user has a choice of either a Dual Arbitrary Waveform Generatoror a Real Time Baseband Generator for producing digitally modulat- ed output signals. Dual Arbitrary Waveform Generator Fitted internally, the optional Dual Channel Arbitrary WaveformGenerator allows the user to select from a library of pre-stored IQ modulator drive waveforms to provide accurately modulated carrierssimulating the characteristics of digitally modulated communicationsystems. Burst modulation and alternate level rf attenuation facilities are provided for TDMA signal simulation. Marker output signals canbe placed within the waveform to simplify triggering and synchro-nization with external test device. Using a patented technique, the dual channel ARB is able to take waveform files typically four times oversampled and run them through a real time interpolation