Section GENERAL 1. Scope a. This technica] manual contains a description, ‘detailed theory of operation, and instructions for field maintenance and repair of Radio Receivers -R-108/GRC, R-109/GRC, and R-110/GRC (fig! 1). In addition, a chapter on repacking of the equipment for shipment or limited storage is included. Operation of the receivers is discussed in TM 11-284, TM 11-611, and TM 11-642. b. Radio Receivers R-108/GRC, R-109/GRC, and R-110/GRC are similar in structure, function, and control arrangement. They differ from each other only in their operating frequency ranges, . those components that determine the frequency range, and the bias source for the squelch oscil- lator. Therefore, unless otherwise specified, the discussions in this book apply to all three equip- ments and reference is made simply to the re- TM898-3i2 . Figure 1. Radio Receiver R-109/GRUv.
DesignationTM 11-898
EditionJan 1956
StatusSuperseded
Pages120
FunctionComms Signal
CollectionHistoric
Public domain (U.S. Government work)