Model GFS-500M6G is essentially two frequency synthesizers in one. It generates two separate, programmable outputs from 500 MHz to 6 GHz. The outputs can be arbitrarily stepped, swept, or frequency-hopped over the full range or any portion thereof, with low noise characteristics. Frequencies are set via a 16-position manual switch or by RS-422/485 control, with 100-ms typical switching speed. Standard frequency step size is 1 kHz, with options as small as 0.001 Hz. Phase noise is -84 dBc/Hz offset 1 Hz from a 500-MHz carrier and -55 dBc offset 1 Hz from a 6-GHz carrier. In-band spurious noise is -65 dBc, with no harmonics. The synthesizer, which is designed for operating temperatures from -40 to +60°C, measures just 4.5 x 6.0 x 0.5 in. Higher-frequency versions and custom models are also available. The GFS-500M6G offers +13-dBm minimum output power and works with a 10-MHz reference. The synthesizer is suitable for radar, satellite-communications (satcom), and electronic-warfare (EW) systems.
GeoSync Microwave, Inc., 320 Oser Ave., Hauppauge, NY 11788; (631) 760-5567, www.geosyncmicrowave.com