TM-9-2350-273-BD M60 M48 Battle Damage Assessment and Repair Download
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TM 9-2350-273-BD COMMUNICATIONS SYSTEM Procedural Steps (Cont’d) aa. Repeat steps (s) through (w) to preset frequencies on settings 2, 3, and 4. NOTE Only two frequencies can be preset on Band I and two more can be preset on Band II. Example: If the PRESET C HANNEL BAND SELECTOR (11) is set at Band I position for preset #1 and #2, only Band II frequencies can be selected for presets #3 and #4. Any combination of bands and presets may be used. ab. You are now ready to operate in the preset mode. Any time you want to select a preset frequency, simply turn the PRESET CHANNEL/CONTINUOUS TUNE SELECTOR SWITCH (18) to the desired preset number. 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 H ad. Turn 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 e.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 tank using standard maintenance procedures. 11-38