51xx SERIES PORTABLE
VHF/UHF/800 MHz
PROJECT 25 (DIGITAL) AND ANALOG
7.5 VDC
5 & 1 W (VHF), 4 & 1 W (UHF), 3 W (800 MHz)
Part No. 242-51xx-xxx
Copyright© 2001 by the E.F. Johnson Company
The E.F. Johnson Company, which was founded in 1923, provides wireless communication
systems solutions for public safety, government, and commercial customers. The company
designs, manufactures, and markets conventional and trunked radio systems, mobile and
portable subscriber radios, repeaters, and Project 25 digital radio products. E.F. Johnson is a
wholly owned subsidiary of Transcrypt International, Inc.
Viking Head/EFJohnson logo, Call Guard
®
, PCTrunk
™
, and PCTune
™
are registered trade-
marks of the E.F. Johnson Company. SMARTNET
™
, SmartZone
®
, SecureNet
™
, Call Alert
™
,
Enhanced Private Conversation
™
, and Private Conversation II
™
are trademarks of Motorola,
Inc. All other company and/or product names used in this manual are trademarks and/or reg-
istered trademarks of their respective manufacturer. The IMBE™ voice coding technology
embodied in this product is protected by intellectual property rights including patent rights of
Digital Voice Systems, Inc.
Information in this manual is subject to change without notice.