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COM 2: Assemble, operate, site and maintain the AN/PRC 77 Set

COM 2: Assemble, operate, site and maintain the AN/PRC 77 Set. JWT v1 /03. Revision. What does AN/PRC stand for? What is the frequency range of the 77 Set? What is the channel spacing? What is the approximate range?. Revision. Identify these parts of the 77 Set:. Revision.

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COM 2: Assemble, operate, site and maintain the AN/PRC 77 Set

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  1. COM 2: Assemble, operate, site and maintain the AN/PRC 77 Set JWT v1 /03

  2. Revision • What does AN/PRC stand for? • What is the frequency range of the 77 Set? • What is the channel spacing? • What is the approximate range?

  3. Revision • Identify these parts of the 77 Set:

  4. Revision • Identify these parts of the 77 Set:

  5. Revision • Identify these parts of the 77 Set:

  6. COM 2: Assemble, operate, site and maintain the AN/PRC 77 Set • Assembly of the radio • Applying a frequency • Disassembly of the radio • Factors in siting the radio • Maintenance of the radio

  7. ASSEMBLY: PRELIMINARY CHECKS • Check the body for any cracks or signs of obvious damage • Check hinges for cracking

  8. ASSEMBLY: FITTING THE BATTERY AND BATTERY BOX • Turn the radio upside down • Unlatch the side hinges

  9. ASSEMBLY: FITTING THE BATTERY AND BATTERY BOX • Remove the battery box lid

  10. ASSEMBLY: FITTING THE BATTERY AND BATTERY BOX • Take the battery out of its plastic bag • Line up the holes on the battery with the pins on the socket • Hold the battery parallel to the radio and gently place it on the radio • Latch the lid back on

  11. ASSEMBLY: ATTACHING THE WHIP ANTENNA • Screw the two parts of the whip antenna together

  12. ASSEMBLY: ATTACHING THE 10 FOOT ANTENNA • Unfold the 10 foot antenna • Screw the two parts of the antenna together

  13. ASSEMBLY: ATTACHING THE ANTENNA • Insert the antenna here

  14. ASSEMBLY: ATTACHING THE WHIP ANTENNA • Screw the antenna in, and check that it is firmly in place. • Check at regular intervals, especially if patrolling; movement can loosen the antenna • The whip antenna can be folded forward over your shoulder so that you can see it, and to prevent it caught in the bush

  15. ASSEMBLY: FITTING THE HANDSET • Remove the handset from the equipment bag

  16. ASSEMBLY: FITTING THE HANDSET • Insert the handset here

  17. ASSEMBLY: FITTING THE HANDSET • Check that the gold coloured points are clean. • Wipe some spit on the points to ensure good contact. • Twist the handset in like a lightbulb. Check that it is firmly in place.

  18. ASSEMBLY: FITTING THE HANDSET • Check that the gold coloured points are clean. • Wipe some spit on the points to ensure good contact. • Twist the handset in like a lightbulb. Check that it is firmly in place.

  19. Applying a frequency • Set the appropriate setting for the band switch • Set the correct frequency

  20. Applying a frequency • Set the volume • Do not put the volume on full – it causes distortion

  21. Applying a frequency • Set the function switch to ‘on’ • Allow the radio to warm up for a couple of minutes

  22. Applying a frequency • Once the radio is working, and you can hear the static, set the function switch to ‘squelch’

  23. DISMANTLE THE SERVICE RADIO Disassemble in the reverse order to assembly: • switch the radio off • remove the handset and antenna • ensure they are stowed in the CES bag • carefully remove the battery • write the date and the time used on the battery

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