The Wavetek 1060 Series is a family of rugged, low cost, solid state sweep generators covering the frequency range of 1 to 400 MHz. The Models 1061 and 1062 are general purpose sweep generators designed for a variety of applications, while the Models 1066 and 1067 are designed primarily for CATV use. Each unit features 20 dB PIN diode leveling and remote programming of center frequency, sweep width, and output level. Up to five crystal controlled marker modules may be plugged into the unit. These modules are controlled by convenient front panel ON/OFF switches. Marker amplitude and width controls enable optimum adjustment of the marker display. Additionally, an external marker option can provide a marker by combining an external CW source with a sample of the sweep oscillator signal. Other optional features include an adjustable Pilot Carrier Notch control, and a sweep display Tilt control for use in CATV applications. The 1060 Series features modular plugin construction, which allows optional features to be factory installed at the time of purchase, or customer installed at a later date. This concept offers protection against obsolescence since updated and additional features can be easily and economically added as new requirements dictate.