TABLE OF CONTENTSIntroduction ..................................................................................... 1Preparation For Use ........................................................................ 2Keyboard/Display Cover ........................................................... 2Battery Installation .................................................................... 2Antenna Installation ................................................................... 2Radio Controls ................................................................................ 3Basic Operation ............................................................................... 4Detailed Operation .......................................................................... 5Display ...................................................................................... 5Keyboard .................................................................................. 5Volume Control ......................................................................... 5Squelch Control ........................................................................ 6Channel Groups ....................................................................... 6PTT Switch ............................................................................... 7Code Guard Operation ............................................................. 8Programming ................................................................................... 9Programming - Keyboard Method ............................................ 9Cloning ...................................................................................... 2 3Programming From A Computer .............................................. 2 6Accessories ..................................................................................... 2 7INTRODUCTIONThis manual covers the operation and programming procedures forRELM’s model EPI 3101AVHF Radio. The Radio provides two-way FMcommunication on up to 28 channels, over a frequency range of 136to 160 MHz, with an RF output of 3 watts.This synthesized portable utilizes a microprocessor core allowing featuresand performance designed to meet the requirements of a commercialNDI NSUR as detailed in the Purchase Description, AN/PRC-127(A)Radio Set. Using the information in this manual will help assure optimumand proper performance from the Radio.The Radio Set consists of the EPI 3101A Radio and the followingaccessory items: LAAO126 Rechargeable Nickel-Cadmium Battery (2),LAA0312A Battery Charger, LAA0117 Battery Holder for 9 replaceableAA batteries, LAA0818A Flexible Antenna, LAA0203A External Speaker/Microphone and LAA0445A Carrying Case. All of these items, except forthe Radio, are shown on page 27.EPI 3101A User’s Manual 1