User's Manual
Table Of Contents
TRL TECHNOLOGIES, INC. FCC ID: OEUPA936M125W
PAGE 1 OF 2
RF IN
RF OUT
125W 928-944MHZ RF POWER AMPLIFIER
MODEL # A125310960B
USER MANUAL
1. GENERAL DESCRIPTION
The 125W 928-944MHz Power Amplifier incorporates LDMOS technology to provide
high efficiency and rugged operation. The PA features a compact housing, alarm display
LEDs and cooling fan.
2. INSTALLATION
Note: DO NOT operate the PA
unless all RF connections are
secured and properly terminated.
Figure 1. Front Display and Connections
The PA’s power out is set in the factory for 125W at a selected customer frequency.
There is no adjustment required. The following procedure is for reference purpose only.
•
Connect the PA’s RF IN port to a RF source.
•
Properly terminate the PA’s RF OUT port with a 125W 50Ohm load.
•
Connect a DC power supply source to the terminal block labeled + -.
•
Turn on the DC power supply and set for 26V @ 18A. The PA’s DC POWER LED
and cooling fan should be on.
•
Set RF source’s frequency within the range of 928 to 944 MHz. Turn on the RF
signal. Adjust the RF input level for 125W at the output port. The input RF level
should remain below or equal to 20dBm.
3. SPECIFICATIONS
Model # A125310936B
-
+
DC POWER
TEMP
VSWR
FUSE