User's Manual

Radio Activity S.r.l. 35 / 44
6 Engineering specifications
KAIROS VS RA-XXX COMPARISON
The main differences between the RA-XXX and the KAIROS families are:
KAIROS
RA
-
XXX
Mechanic
Single module
Multi module assembly
Weight
1,3 Kg
6 Kg
Operative System
LINUX
LINUX
Internal Memory (RAM/FLASH)
128Mbyte/64Mbyte
32Mbyte/32Mbyte
Diversity RX
Always present
Option
Power supply
13,2Vdc (11 to 15
V)
12Vdc; 24
–
48 Vdc as option
RX power consumption
<5W
<8W
TX Power
25W (15W at 900MHz band)
25W
Simulcast
Yes (as option)
Yes (as option)
Channelization
25/20/12,5/6,25 KHz
12,5 KHz; 25/20 KHz as option
Bands
66
-
88; 136
-
174; 350
-
410; 4
00
-
470;
450-520; 806-941 MHZ
68-88; 146-174; 400-470 MHZ
Dual mode DMR/Analog
Yes (as option)
Yes
DMR TIER 3
Yes (as option)
Yes (as option)
Operation
FDMA duplex / half
duplex / Direct
mode (2TS)/TDMA duplex
FDMA duplex / half duplex (as base
station)
Vehicular/mobile repeater
Yes
No
Built in audio lines
2 (Timeslot 1 and 2 DMR )
1
User I/O
4 not insulated
4 insulated
Internal GPS Receiver
Option
Option
Internal GSM
for remote
Control
No Option
SIP/RTP Gateway
Internal Option or external DTI
module
external DTI module needed
1+1 (Main/Spare) operation
Yes (as option)
Yes (as option)
RS232 Serial port
Yes (as option)
Yes (included in the I/O module)
USB Port
Yes
(as option)
No
Design year
2014
2007