Product Overview

1 - 250 MHz Frequency Synthesizer with GPIB & local control.  100 Hz resolution.  Requires External Timebase (5 or 10 MHz). 1 MHz to 250 MHz +3 to +13 dBm output 100 Hz resolution very low phase noise fast switching, 5-20 µs fully programmable GPIB, or manual control with front panel switches low power consumption, high reliability 7 decades of DDS resolution available (with phase-continuous switching Frequency Range: 1.000 000 0 MHz to 249.999 999 9 MHz   Resolution: 0.1 Hz to 100 KHz, optional in decades   Accuracy: same as frequency standard   Control: manual by 10-position dial     remote by TTL-level parallel entry BCD or GPIB(optional)   Switching Time   (to within 0.1 radian at new frequency)   100 MHz - 10 MHz digit: 20 µseconds   1 MHz - 0.1 Hz digit: 5 µseconds   Output Level: + 3 to + 13 dBm (1V max, 50 W ), metered in dBm and volts (rms)   Flatness: ± 0.5 dB   Impedance: 50W    Control: manual by front panel control; remote by analog voltage   Spurious   (at full power output, +13 dBm) Outputs Discrete: -70 dBc   Harmonics: -30 dBc at full output(-40 dBc at lower level)   Phase Noise: -63 dBc (0.5 Hz to 15 KHz) including effects of internal standard   £ (1Hz): 100 Hz/ -105 dBc, 1 KHz/ -115 dBc, 10 KHz/ -123 dBc, 100 KHz/ -127 dBc   Noise Floor: -135 dBc/Hz   Frequency Internal: OCXO or TCXO Standard   3x10-9/day 1x10-8/day     ± 1x10-8/0-50° C ± 1x10-6/0-50° C     1x10-6/year 2x10-6/year   External Drive: 10 MHz, 0.4 Vrms into 300 W ; 5 MHz, 0.5 Vrms into 300 W    Aux. Output: 10.000 MHz, 0.4 Vrms into 50 W      (Note: internal or external standard required for operation)   General Operating Ambient: 0-55° C, 95% R.H.   Power: 105-125, 50-400 Hz, 45W (100, 220, 240V optional)   Dimensions: 19 x 5.25 x 18 inches (relay rack or bench cabinet)   Weight: 35 lbs.   For units equipped with a DDS-TLU option, specifications are modified as follows: DDS Option:   H K Phase-Continuous   100 KHz thru 0.1 Hz digits 10 KHz thru 0.1 Hz digits Switching Range   (~1 MHz bandwidth) (~100 KHz bandwidth)   Frequency Resolution: 0.1 Hz 0.1 Hz Optional Phase Rotation: 0 - 360° in .36° steps N/A   Switching Time   (within phase-continuous range) < 1 µs transient, 2 µs delay   Spurious Discrete: -65 dBc -70 dBc Outputs Phase Noise: -63 dBc -63 dBc