User's Manual

Selex ES S.p.A.
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by Selex ES S.p.A. in writing
58
8.1.6 DC/DC module – DC/DC
The DC/DC module is a continue power voltage converter from an external
power source (range Vin= 35 ÷ 75 Vdc) to the internal power level of ECOS-D
devices. The converter, other than the power voltage conversion, is able to
galvanically insulate (1500Vrms) the internal 13,2 Vdc power distribution from
the external power source and a 28 Vdc power distribution to the 110W PA
module.
LED
Color
Label
Description
1
Green
Vout OK
Normally operating
Red
NA
2
Green
Vin OK
Normally operating
Red
NA
8.1.7 Radio Receiver and Transmitter module – RTX
The “Radio Receiver and Transmitter” (RTX) module realizes a full duplex radio that work in
the following frequency band commonly used in the LMR/PMR market: 896 ÷ 941 MHz.
It is able to operate with channel spacing of 12.5 kHz, 20/25 kHz.
Limitation on usable RF bands and channel spacing may apply due to local regulations.
This module is equipped with devices for numerical computation (DSP, FPGA) and control
(microprocessor) combined with the radio receiver front-end and the transmitter driver.
The RTX module main functionalities are:
 Dynamic Dual mode radio operations with support of digital and analog
modulation
 Synchronization from external reference via CORE Master module
 Temperature control.
 radio parameter compliant with: FCC part 90, FCC part 15B and TS 102 361