1. COM1: Characteristics and Components of the AN/PRC 77 Set JWT v1 /03

2. The AN/PRC 77 RADIO SET  Technical data  Components of the 77 Set

3. TECHNICAL DATA The AN/PRC 77 is a very high frequency (VHF) frequency modulated (FM), short range, receiver-transmitter used for two- way voice communications. AN/PRC stands for Army Navy Portable Radio Communications

4. TECHNICAL DATA  Frequency Range 30 - 75.95 Mhz  Lower Band30 - 52.95 Mhz  Upper Band53 - 75.95 Mhz  No of Channels920  Transmission rangeApprox. 5-8 km (depending on terrain and antenna)  Battery LifeApprox. 30 hrs. at a ratio of 9:1

5. Questions  Is the AN/PRC 77 Set:  HF or VHF?  AM or FM?  What does AN/PRC stand for?  How many channels does it have-  60  300  920  How long should a battery last?

6. BASIC ISSUE ITEMS The Radio 77 Set comes issued with the following items:  Radio  Harness  CES bag & contents

7. BASIC ISSUE ITEMS CES (Complete Equipment Schedule):  Bag  Handset  Whip antenna  Whip antenna base  Antenna 10 foot  Antenna 10 foot base

8. BASIC ISSUE ITEMS CES (Complete Equipment Schedule):  Bag  Handset  Whip antenna  Whip antenna base  Antenna 10 foot  Antenna 10 foot base

9. BASIC ISSUE ITEMS CES (Complete Equipment Schedule):  Bag  Handset  Whip antenna  Whip antenna base  Antenna 10 foot  Antenna 10 foot base

10. BASIC ISSUE ITEMS CES (Complete Equipment Schedule):  Bag  Handset  Whip antenna  Whip antenna base  Antenna 10 foot  Antenna 10 foot base

11. BASIC ISSUE ITEMS CES (Complete Equipment Schedule):  Bag  Handset  Whip antenna  Whip antenna base  Antenna 10 foot  Antenna 10 foot base

12. BASIC ISSUE ITEMS CES (Complete Equipment Schedule):  Bag  Handset  Whip antenna  Whip antenna base  Antenna 10 foot  Antenna 10 foot base

13. Questions: Identify these basic issue items

18. Parts of the 77 Set

19. External power supply

20. Parts of the 77 Set Antenna connector

21. Parts of the 77 Set Antenna mount

22. Parts of the 77 Set Band switch

23. Parts of the 77 Set MHz Tuning Control

24. Parts of the 77 Set KHz Tuning Control

25. Parts of the 77 Set Preset levers

26. Parts of the 77 Set Channel Dial

27. Parts of the 77 Set Audio Connectors

28. Parts of the 77 Set Volume Control

29. Parts of the 77 Set Function Switch

30. Questions: identify these parts

35. Final questions?  Look over your notes. There will be a test of the material you have learnt in this lesson.  Now is your chance to ask final questions.

36. COM1: Characteristics and Components of the AN/PRC 77 Set JWT v1 /03