Touted by Saelig as the smallest USB microwave synthesized source available, the TEG4000-1, a laboratory quality, 200 to 4000 MHz RF signal source, can be swept in step sizes as low as 1 kHz between any two frequencies in its specified range. Controlled via the supplied PC software, the device can be preset to output a specific frequency when PC-connected, then, in the field, it can become a high quality preset frequency source when 5 V is applied to its USB connector, no longer the needing the PC connection. The device contains a stable, internal 2 ppm 10 MHz crystal reference with -100 dBc/Hz phase noise at 100 KHz offset. Power consumption is 150 mA at 5 V and 0.5 GB of flash memory, used for installation files and test data, is included. Applications include local RF signal generation for frequency conversion or scalar measurements, and two or more units combined for multi-tone testing. Housed in a case the size of a flash drive, the product weighs just one ounce. Made by Telemakus, the TEG4000-1 synthesized signal source is available now from Saelig.