1
INTRODUCTION
1.1
GENERAL
The RITRON DTXM Plus modules are programmable 2-way radios, which operate either in the
VHF or UHF professional FM communications bands as well as a number of other bands in the
220 MHz and 350 MHz region. Each of four channels can be programmed to contain a unique
set of operating frequencies. The DTXM Plus module is made up of two PC boards, an RF board
and a control/loader board. These two boards are enclosed in a metal case with two connectors
on one end; a 50 ohm BNC connector for connection to an antenna and a DB-15 sub-miniature
connector for power and control input/output.
In addition, the RF board is available as a stand-alone unit for system integrators.
1.2
MODEL IDENTIFICATION
The DTXM
has a part number in the form of “DTXM-A60-BCDEF”
Where:
A is the major frequency band designator:
1=VHF (136-174 MHz)
2=217-245 MHz
3=340-400 MHz
4=UHF (400-520 MHz)
B is the sub-band designator:
G=340-360 and 400-420
A=420-440
B=430-450
0=136-174, 217-245, 360-380, and 450-470
M=380-400
C=470-490
T=490-512
C is the connector designator:
B=BNC connector
M= MCX connector
S=SMA connector
D designates the channel bandwidth:
S=6.25 kHz
N=12.5 kHz
W=25 kHz
E designates the maximum power level:
3=3 watts
6=6 watts
9=10 watts
