Time interval A --> B (T.INT A --> B) (for SC-7207 and SC-7205 only) •Minimum time interval: 6ns •Maximum repetitive frequency: 80MHz •Measuring range and resolution SC-7207 SC-7205 Reference time 10ns 100ns Measuring range SGL gate 10ns to 100s 100ns to 1,000s Internal gate (1ms to 10s) 10ns to approx. 1/2 gate time 100ns to approx. 1/2 gate time Measuring resolution SGL gate 10ns to 100ns 100ns to 1ms Average count of internal gate 1 to 24 10ns 100ns 25 to 2,499 1ns 10ns 2,500 to 249,999 100ps 1ns 250,000 to 24,999,999 10ps 100ps 25,000,000 or more 1ps 10ps

Frequency ratio A/B (FREQ A/B) (for SC-7207 and SC-7205 only) •Measuring range and resolution SC-7207 SC-7205 Input signal frequency range Both CH-A and CH-B are the same as that for FREQ-A Measuring range Internal gate (1ms to 10s) 1E-9 to 1E+9 Measuring resolution Internal gate (1ms to 10s) 1+LOG (CH-A input frequency x gate time) digits

Phase measuring A --> B (PHAS A --> B) (for SC-7207 and SC-7205 only) •Minimum time interval: 6ns •Maximum repetitive frequency: 80MHz •Measuring range and resolution SC-7207 SC-7205 Reference time 10ns 100ns Measuring range SGL gate 0.1µ to 359.999,999,9 [°] Internal gate 1µ to 359.999,999 [°] 10µ to 359.999,99 [°] Measuring resolution SGL gate 0ns/input period x 360 [°] 100ns/input period x 360 [°] Average count of internal gate 1 to 24 10ns/average input period x 360 [°] 100ns/average input period x 360 [°] 25 to 2,499 1ns/average input period x 360 [°] 10ns/average input period x 360 [°] 2,500 to 249,999 100ps/average input period x 360 [°] 1ns/average input period x 360 [°] 250,000 to 24,999,999 10ps/average input period x 360 [°] 100ps/average input period x 360 [°] 25,000,000 or more 1ps/average input period x 360 [°] 10ps/average input period x 360 [°]

Accumulation measuring (TOT-A) Minimum pulse width 2.5ns Input frequency range Same as that for FREQ-A Measuring range 0 to 4,294,967,295 counts when scaling calculation is set to off Measuring error ±1 [count] (only when gate opens/closes)

Peak voltage measuring (SC-7206 is not equipped with CH-B) Measures and displays in real-time the voltage amplitude of the measured signal at CH-A or CH-B. Frequency range 150Hz <= input frequency <= 50MHz Response time 2 seconds or less Voltage range ±2.50V (ATT off, resolution: 10mV), ±50.0V (ATT on, resolution: 100mV) Measuring error ATT off: 10% of indication ±50mV ATT on: not specified

CH-A, CH-B input terminal (SC-7206 is not equipped with CH-B) Input RC Approx. 1MW/20pF or less Coupling AC or DC Low pass filter Off, 10kHz Attenuator Off, 26dB (1/20) Trigger level Measuring Range ATT off -2.50V to +2.50V (resolution: 10mV) ATT on -50.0V to +50.0V (resolution: 100mV) accuracy (0 to +40°C) ATT off 10% ±30mV of the set value (±3% when +2 to -2 V ) ATT on 10% ±300mV of the set value (±3% when +40 to -40 V ) Operating input voltage range ATT off ±2.5V ATT on ±50V Input sensitivity Manual trigger ATT off 30mVrms (DC to 230MHz) ATT on 0.6Vrms (DC to 230MHz) Auto trigger ATT off 200mVrms (10kHz to 230MHz, sine wave) ATT on 4Vrms (10kHz to 230MHz, sine wave)

CH-C input terminal (for SC-7207 and SC-7206 only) Maximum input power +30dBm (approx. 7Vrms when 1mW/50W = 0dBm as a reference) Impedance Approx. 50W Coupling AC VSWR 2.0 or less (SC-7207: 100MHz to 3GHz, SC-7206: 100MHz to 2GHz) Input sensitivity (Sine wave: up to 2 GHz for SC-7206) AGC off/on -20dBm (100MHz <= input frequency <= 300MHz) -25dBm (300MHz < input frequency <= 1.5GHz) -20dBm (1.5GHz < input frequency <= 3.0GHz) Burst detection Detection frequency range SC-7207 100MHz to 3GHz SC-7206 100MHz to 2GHz Input sensitivity (sine wave: up to 2GHz for SC-7206) AGC off -20dBm (100MHz <= input frequency <= 1.2GHz) -10dBm (1.2GHz < input frequency <= 3.0GHz) Detection delay time 500µs (Burst period >= set gate + 500µs)

10MHz STD IN BNC terminal for more stable input of the external reference frequency Frequency 10MHz±50Hz (±5ppm) Amplitude 1Vrms to 5Vrms, threshold = 0V Input resistance Approx. 6.4kW Input coupling AC

10MHz STD OUT/(MARKER OUT) BNC terminal for output of internal reference oscillator or marker signal. Marker signal is a signal that presupposes the brightness modulation (Z axis) of the analog oscilloscope. It is enabled at the SGL gate when the function is in between the time interval (T.INT A --> B) and phase (PHAS A --> B). Output is L from the start of CH-A measuring to the start of CH-B measuring. Output CMOS level Reference frequency output 10MHz: Stability is the same as that for the internal reference oscillator. Marker output In the 5MHz band, L is output during actual measuring. (for SC-7207 and SC-7205 only. Marker selection is disabled with SC-7206.)

Output interface •RS-232 is equipped as standard •GP-IB is equipped as standard (option SC-701 for SC-7205) •Digital I/O option can be installed (SC-702)

Environmental conditions •Warm-up time: 60 minutes or more •Operating temperature/humidity: 0°C to +40°C/85%R.H or less (no condensation) •Storage temperature/humidity: -20°C to +60°C/90%R.H or less (no condensation)

Reference oscillator Equipped with SC-7207, SC-7206 and SC-7205 as standard Output is possible to the 10MHz OUT BNC terminal on the rear panel of the main unit. •Oscillation frequency: 10MHz •Temperature characteristics: ±2.5ppm/unit environmental temperature: 0°C to +40°C •Aging rate: ±1.0ppm/year

Power supply conditions and power supply voltage changes (factory option) •Voltage: AC100V / 110V to 120V / 220V to 240V •Frequency: 50Hz, 60Hz, 400Hz •Power consumption: At AC100V with optional SC-701 and SC-702 are installed. SC-7207 36VA MAX SC-7206 33VA MAX SC-7205 31VA MAX

Size (210±2)W x (99±2)H x (353±2)L mm (excluding options and protruded parts)

Weight 4.0kg or less (including optional SC-701 and SC-702)

Accessory Power cord (1), operation manual (including options) (1)