UG-001 Daniels P25 Radio Systems
www.danelec.com
Chapter 6: Radio System Components
43
User
Guide
P O W E R A M P L I F I E R S
The standard RF power output of the P25 transmitters is adjustable from 2 to 8 Watts. If a higher RF
power output is required, the transmitter may be used as an exciter to drive a power amplifi er. Daniels
Electronics manufactures a 30 Watt power amplifi er, shown in Figure 6-8, that will fi t into a standard
subrack.
Figure 6-8: 30 Watt Power Amplifi er
Daniels Electronics can also supply higher power amplifi ers (60 W, 100 W, 250 W) that are 19” rack
mountable.
T U N I N G A N D M A I N T E N A N C E TO O L S
To facilitate testing, alignment and maintenance for the MT-4 radio systems, extender cards can be
used to extend the individual modules out from the subrack. Extender kits (extender card plus a four
foot cable) allow the modules to be extended out to a bench for servicing.
The following extender cards and kits are available:
EC-96D1
(direct connect) or
EC-96K-1.22
(card and cable)
Used for the 96 pin control cards (CI-RC-4L and CI-BC-4E).
EC-48RD
(direct connect) or
EC-48RK-1.22
(card and cable)
Used for all transmitter, receiver, power amplifi er and system monitor modules.
The
A-TK-04
tool kit includes a number of spare parts for the MT-4 radio system, including tuning
tools, guide rails, transient suppressors, diodes, a fuse, dust caps, shunt jumpers, ESD wrist strap, and
various screws and hardware.
POWER AMPLIFIER
PWR
TX
O / T
VSWR
ON
OFF
RF OUT
RF IN
MADE IN CANADA
AMP-2/170-3000
MADE IN CANADA
MADE IN CANADA
FREQUENCY (MHz)
170.5250
DANIELS
ELECTRONICS LTD.
