The NRV7 is much more than just a remote VFO. Designed to operate with the Drake TR7 Transceiver it also includes a built in CW Keyer with six 15 character CW memories, a PS/2 interface to allow keyboard control of the NRV7 and also send CW. A built in sound card with a single cable USB connection to a PC allows easy digital mode operation. For SSB operation a VOGAD Speech Compressor is also included. But the real power of the NRV7 is the second USB interface that allows the VFO to be controlled from a logging / rig control program. Use a mouse to click the operating frequency right to the VFO for instant QSY.