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Carrier frequency 
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 Frequency range 
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 300 kHz to 2250 MHz (MG3670B/C), 300 kHz to 2750 MHz (MG3671A/B) 
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 Accuracy 
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 Depends on installed reference oscillator*1 
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Internal reference oscillator 
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 Frequency: 10 MHz 
Start-up characteristics: ≤1 x 10–7/day (after 30-min. warm-up), ≤5 x 10–8/day (after 60-min. warm-up) Aging rate: ≤2 x 10–8/day (after 24-h warm-up) 
Temperature characteristics: ≤±5 x 10–8 (0˚ to 50˚C) 
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| 
 External reference input 
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 10 MHz or 13 MHz (±10 ppm), 2 to 5 Vp-p, BNC connector (rear panel) 
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 Reference output 
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 10 MHz, 2 to 5 Vp-p, BNC connector (rear panel) 
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Output 
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 Level range 
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 –143 to +13 dBm (resolution: 0.1 dB) 
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 Frequency response 
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 ≤±1 dB (at 0 dBm output) 
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Level accuracy 
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 Output level/frequency 
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 ≤1000 MHz 
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 >1000 MHz 
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 –33 to +13 dBm 
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 ±1 dB 
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 ±2 dB 
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 –123 to –33.1 dBm 
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 ±1.5 dB 
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 ±2 dB 
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 –136 to –123.1 dBm 
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 ±3 dB 
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 ±4 dB 
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 Impedance 
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 50 Ω, N-type connector 
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 Continuously variable level 
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 Continuously variable output over 20 dB range (+8 to –12 dB) in 0.1 dB steps within upper and lower limits of any output level 
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 Level unit 
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 dBm, dBµ,  µV, mV, V (dBµ,  µV, mV, V  selected terminate/open voltage display) 
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 Interference radiation 
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 ≤1 µV  *Measured 25 mm from cabinet (except rear panel) with two-turn 25 mm diameter loop antenna, terminated with 50 Ω load, ≤+5 dBm output, carrier wave 
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Signal purity 
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 Spurious 
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 ≤–65 dBc (≥100 kHz offset,  ≤±100 MHz bandwidth), ≤–50 dBc (≥100 kHz offset,  full band), 
≤–40 dBc [spurious of (5.4–Fout) GHz at ≥2.65 GHz], ≤–30 dBc (harmonics) 
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 SSB phase noise 
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 ≤–120 dBc/Hz (100 kHz offset, carrier wave) 
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Digital modulation 
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 Internal modulation 
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 Depends on installed modulation unit (MG0301C/0302A/0305A/0307A/0310A/0311A/0312A) 
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External modulation 
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 Any modulation using I/Q input signal Input frequency: DC to 1.2 MHz*2 
Input level: √ I2 ± Q2   ≤0.5 Vrms, BNC connector  *I/Q ≤1.5 Vp-p (50 Ω), I/Q ≤10% to 100% of 1.5 Vp-p (CMOS) Vector error: ≤1.8%rms (I/Q input level: 1 Vrms/50 Ω, at ≤+5 dBm output) 
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 I/Q output 
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 Outputs I/Q signal at internal modulation (MG0301C/0302A/0305A/0307A/0310A/0311A/0312A installed) 
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Pulse modulation 
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 Input 
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 TTL level, BNC connector, polarity selectable 
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 On/off ratio 
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 ≥40 dB (at ≥0 dBm output) 
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 Transition time 
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 ≤2 µs, minimum pulse width: 10 µs 
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 Memory function 
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 Frequency memory 
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 1000 carrier frequencies (save and recall) 
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 Parameter memory 
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 100 panel settings (save and recall) 
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Other functions 
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 Relative display 
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 Carrier frequency, output level 
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 I/Q signal adjustment 
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 Offset, balance, phase (only output) of I/Q input/output signal 
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 Backup 
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 Last settings stored at power-off 
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 Reverse power protection 
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 Maximum reverse input power: 50 W (<1000 MHz), 25 W (≥1000 MHz), ±50 V (DC) 
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 GPIB 
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 All functions except power switch and panel lock switch controlled Interface function: SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT0, C0, E2 
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 Operating temperature 
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 0˚ to 50˚C 
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 Power 
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 100 to 120/200 to 240 Vac (switchable), 47.5 to 63 Hz, ≤550 VA 
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 Dimensions and mass 
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 (426±5) W x (221.5±4) H x (451±5) D mm, ≤27 kg 
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| 
 EMC 
 | 
 EN55011: 1991, Group 1, Class A 
EN50082-1: 1992 
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 Safety 
 | 
 EN61010-1: 1993 (Installation Category II, Pollution Degree II) 
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