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

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

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

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

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?

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

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

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

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

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

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

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

Questions: Identify these basic issue items

Parts of the 77 Set

External power supply

Parts of the 77 Set Antenna connector

Parts of the 77 Set Antenna mount

Parts of the 77 Set Band switch

Parts of the 77 Set MHz Tuning Control

Parts of the 77 Set KHz Tuning Control

Parts of the 77 Set Preset levers

Parts of the 77 Set Channel Dial

Parts of the 77 Set Audio Connectors

Parts of the 77 Set Volume Control

Parts of the 77 Set Function Switch

Questions: identify these parts

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.

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