No abstract

The TD-3 microwave generator furnishes all of the heal oscillator power used in a TD-3 transmitter-receiver bay. It delivers an output power of 0.6W at a frequency which can be adjusted to any one of 17 frequencies. In designing the generator special emphasis was placed on reliability, ease of tuning, and on obtaining a carrier with high spectral purity and frequency stability. This paper describes the generator's circuit con figuration and operation, and discusses important design considerations and techniques.

No abstract

Previous attempts, based on mode‐matching techniques, to obtain precise data for the equivalent circuit of inductive post arrays in rectangular waveguide have consistently failed due to convergence problems. A different formulation is presented for symmetrical post arrays, which is shown to be free from this defect.

Like all digital transmission systems, digital subscriber loop carrier seems destined to play an ever-increasing role in modem communication networks. This trend derives its strength from basic and pervasive factors: (1) the great ease with which digital transmission can support new services, particularly those related to any form of data transmission; (2) the seemingly inexhaustible potential of digital integrated circuit technology to realize ever-decreasing cost, size, and power-per-circuit function; (3) the great promise digital transmission holds for synergy with digital switching. This paper provides an overview to a series of papers that describe in detail AT&T Technologies eminently successful entry in this market, the SLC'J 96 Subscriber Loop Carrier System. Emphasis is placed on the background leading to the development and the forces that shaped the system's architecture.