Circuit Description
VHF1 (136
‐
174 MHz)
28
5.4
GPS Circuit
GPS
Antenna
GPS
module
OMAP
Palm
Microphone
LCD
Power
UART
REB-1315LPX
GPS positioning information can be acquired via the programmed GPS key on the front panel. The GPS
function is realized via REB-1315LPx module, which internally integrates GPS baseband processor
circuits.
The GPS signal (1.57542 GHz), received via the GPS active antenna (with a built-in LNA), goes to the
GPS module for processing, and then enters U1002 via the UART port. Meanwhile, U1002 sends control
command to the GPS module and forwards processed GPS information to the palm microphone LCD via
USB.
Summary of Contents for MD652
Page 1: ...DIGITAL MOBILE RADIO...
Page 5: ...UHF1 400 470 MHz...
Page 15: ...Exploded View and Packaging Guide UHF1 400 470 MHz 8 3 2 Packaging Guide...
Page 53: ...43 9 PCB View Front Panel PCB View Top Layer X...
Page 54: ...44 Front Panel PCB View Bottom Layer...
Page 55: ...45 Main Board PCB View Top Layer...
Page 56: ...46 Main Board PCB View Bottom Layer...
Page 106: ...VHF1 136 174 MHz...
Page 116: ...Exploded View and Packaging Guide VHF1 136 174 MHz 8 3 2 Packaging Guide...
Page 154: ...43 9 PCB View Front Panel PCB View Top Layer...
Page 155: ...44 Front Panel PCB View Bottom Layer...
Page 156: ...45 Main Board PCB View Top Layer...
