Browse Prior Art Database

MODULAR DUAL RF BAND PORTABLE RADIO ADAPTER

IP.com Disclosure Number: IPCOM000007010D
Original Publication Date: 1993-Oct-01
Included in the Prior Art Database: 2002-Feb-18
Document File: 2 page(s) / 133K

Publishing Venue

Motorola

Related People

Keith Mulford: AUTHOR

Abstract

To obtain the advantages of a dual band Land Mobile portable radio it is possible to add a second RF deck adapter to an existing portable radio with- out disassembling or modifying the existing radio. (Reference Figures 1 & 2) To "install" the second RF deck adapter 300, the battery is removed from the radio housing 200 and the second deck adapter is placed between the battery and the existing radio. Mechanical connec- tions are made using the existing battery mounting system and the existing Control/Mic connector interlocking mechanics. Audio, RF: and control con- nections are provided through the existing Control/ Mic connector 207. No physical changes are required to the existing radio. Depending on the method of control selected by the user, either minor or no soft- ware changes are required to the existing radio.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 50% of the total text.

Page 1 of 2

MOTOROLA INC. Technical Developments Volume 20 October 1993

MODULAR DUAL RF BAND PORTABLE RADIO ADAPTER

by Keith Mulford

  To obtain the advantages of a dual band Land Mobile portable radio it is possible to add a second RF deck adapter to an existing portable radio with- out disassembling or modifying the existing radio. (Reference Figures 1 & 2)

  To "install" the second RF deck adapter 300, the battery is removed from the radio housing 200 and the second deck adapter is placed between the

battery and the existing radio. Mechanical connec- tions are made using the existing battery mounting system and the existing Control/Mic connector interlocking mechanics. Audio, RF: and control con- nections are provided through the existing Control/ Mic connector 207. No physical changes are required to the existing radio. Depending on the method of control selected by the user, either minor or no soft- ware changes are required to the existing radio.

Conhd / Mic Camedo, ,"7

Remote mic ="I

Standard

Portable Radio

200

      n eanery feed """f&c%WJ

(311 and312)

Multi-Sand Poft$ Radio Adaptor

  While Figure 1 shows a bottom mounted bat- tery and back mounted control connector portable configuration (as in Motorola's Saber and ASTRO portables), this invention can equally be applied to back mounted battery and side mounted control con- nector configurations (as in the Motorola MT-1000 and MTS-2000 portables).

When the second deck RF module is applied to

an existing radio, the battery power is routed to the second RF deck through connector 311 and then on to the existing radio through connectors 312 and 211. Placement of the second deck RF module in position on the back of the existing radio activates connector switch 210. This switch disconnects the external antenna of the:existing radio and routes its RF path through connector 207/307, through switch 321 and on to the antenna port 306 on the second

54

[This page contains 15 pictures or other non-text objects]

Page 2 of 2

MO7=OROLA INC. Technical Developments Volume20 October 1993

0 M

RF module. Connector switch 210 also switches the mic and speaker audio of the existing radio to the second deck RF module through connectors 207/307. Switch 310 in the second deck RF module provides the same function as switch 210 in the existing radio and provides for the connection of an optional...