Racal RA.17 Communications Receiver Operating Manual

Complete operating and maintenance manual for the Racal RA.17 communications receiver, a general-purpose shortwave receiver engineered for high sensitivity, selectivity, and frequency stability across 1.0 to 30.0 MHz. This service manual covers both standard and North American versions, delivering detailed technical guidance on installation, setup, operation, and maintenance procedures. Contents include preliminary configuration, film scale calibration, BFO tuning and calibration, and full operational tuning methods. The technical specifications section addresses frequency coverage, stability performance, input impedance, sensitivity ratings for A1 and A2 reception modes, intermodulation characteristics, selectivity bandwidth options, audio output configurations, and automatic volume control operation. Includes circuit descriptions, comprehensive troubleshooting procedures, maintenance guidance covering tube identification and ratings, fault-finding methodology, alignment instructions, and complete parts lists. Suitable for bench or rack-mount installation with approximately 100 watts power consumption. An essential reference for operators and technicians maintaining or servicing this classic HF receiver.