SCR-197

The SCR-197 mobile station consisted of the BC-325 radio transmitter with a frequency coverage of 1.5 to 18 Mhz and an RF power output of 400 watts. Radio receivers consisted of three BC-342 and one Hallicrafters S-20R "Sky Champion". Also provisioned was a BC-119 control box. The complete set was housed in a K-18 truck and K-19 trailer combination. A 45 foot vertical antenna was used for sending and a 15 foot whip used for receiving. Power could be optionally supplied by power mains or portable generator units: one PTO driven GN-42-A generator for the transmitter and two small PE-75 skid mounted units for the receivers. The SCR-197 set was later replaced by the SCR-299.[2]

Components

• BC-325 transmitter
• BC-342 reciever X 3.
• RM-7 remote
• S-20R sky champion reciever
• GN-42
• BD-92 control panel
• PE-75
• RA-20
• K-18 truck
• K-19 trailer

images

(NOTE- the pictures from TM 10-560 arent quite right but might be helpful to someone.)

Reference Files

• TM 11-241 Radio Sets SCR-197-B, SCR-197-C, SCR-197-D, SCR-197-E, and SCR-197-F.
• TM 11-805 transmitting components of SCR-197-B, SCR-197-C, SCR-197-D, SCR-197-E, and SCR-197-F.

TM 11-310

Schematic Diagrams for Maintenance of Ground Radio Communication Set

October 1942