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The IFR 2026 is a 10 kHz to 2.4 GHz MultiSource Synthesized Signal Generator which offers two RF signal generators in one box with a third source available as an option. Each source is a fully functional RF signal generator with AM, FM, phi-M, 2FSK, 4FSK and pulse modulation capability. The use of a built in combiner, switches and cables eliminates many of the measurement uncertainties introduced by connecting together separate signal generators. The 2026 thereby guarantees the level of intermodulation products introduced during amplifier or receiver intermodulation testing. The 2026 allows one of the RF sources to be frequency swept with user defined start, stop, and step values to reduce the amount of operator time or GPIB overhead. By enabling the coupling facility, sweeping one source will simultaneously sweep the other internal RF sources to allow automated swept measurements on frequency conversion devices to be made. Specifications. Carrier Frequency Range: 10 kHz to 2.4 GHz with a resolution of 1 Hz. RF Output Range: Individual outputs, -137 dBm to +24 dBm; Combiner outputs, -137 dBm to +4 dBm (settable to +10 dBm). RF Maximum output is reduced by 5 dB when pulse modulation is selected and/or by up to 6 dB when AM is selected dependent upon AM depth. Resolution: 0.1 dB. Harmonics Individual outputs: Typically better than -30 dBc for RF level up to +6 dBm, typically better than -25 dBc for RF levels up to +18 dBm (+14 dBm above 1.2 GHz). Harmonics Combined output: Typically better than -30 dBc for RF level up to -14 dBm, typically better than -25 dBc for RF levels up to +4 dBm. (0 dBm above 1.2 GHz), Harmonics unspecified below 1 MHz. Modulation Oscillator Frequency range: 0.01 Hz to 20 kHz with a resolution of 0.01 Hz. External Modulation: Input on the front panel Modulation Input/Output connector. The modulation is calibrated with 1.414 V peak (1V RMS sine wave) applied. Input impedance is 100 k-ohm nominal. Maximum safe input ±15 V. Options. Option 1, Add third internal source. Option 3, High stability frequency standard. Option 4, Rear panel outputs.
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