TM-9-2350-275-BD Battlefield Damage Assessment and Repair for M113 Family Download
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TM 9-2350-275-BD COMMUNICATIONS SYSTEM Procedural Steps (Cont): ac. To operate in the CHANNEL/CONTINUOUS TUNE labelled I and II. “I” corresponds frequencies. continuous tune SELECTOR SWITCH to Band I frequencies mode, turn the PRESET (18) to the lower positions, and “II” corresponds to Band II ad. the FREQUENCY TUNING KNOB (27) to the desired frequency. ae. Load the antenna by accomplishing steps (w) thru (z). CAUTION Observe a 1:3 transmit to receive ratio i.g., 3 minutes transmit to 9 minutes receive, to minimize the possibility of overheating the power supply and power output tubes. af. You are now ready to operate in the continuous tune mode. The tuning controls are very sensitive; therefore, the continuous mode should not be selected if the radio is to be moved or subjected to vibrations. 9. Record the BDAR action taken. When the mission is completed, as soon as practicable, repair vehicle using standard maintenance procedures. 11-27. FOREIGN EQUIPMENT INTERCHANABILITY (ALLIED RADIOS) General Information This procedure contains general installation instructions for Allied radio equipment. Limitations ● Vary according to radio set but you can expect a decrease in operating range on some sets. ● You can expect not to be able to transmit and receive on all frequencies within the U.S. AN/VRC-12 frequency range. Personnel/Time Required ● 1 soldier ● Approximately one hour for each type of installation Other Options ● Replace with the AN/VRC-12 series of radio components from foreign vehicles. (Refer to para. 11-25.) ● Replace with Soviet radio R-123M. (Refer to para. 11-26.) Procedural Steps 1. Refer to table 11-1 for comparison purposes in determining limitations. 11-37