Quick Start Manual
MGR 
MGR-2
DIGITAL 
GATE 
RECEIVER
Installation Instructions
Description
The  MegaCode  series  of  digital  receivers  are  wireless  radio  controls 
designed  for  use  with  automatic  gate  openers  or  garage  door  operators. 
The  MegaCode  radio  format  provides  unparalleled  security.  The  transmitter 
and  receiver  can  be  programmed  to  more  than  a  million  different  codes. 
MegaCode receivers and transmitters do not contain a typical “coding switch”. Each 
transmitter is pre-set at  the  factory to a  unique  code. The  receiver is  programmed 
by sending  a  signal  to  it  from  the  transmitter(s)  that  are  going  to  be  used  with  it. 
This stores  the transmitters  code into  the receiver’s  memory. The receiver  will 
retain  its  memory even  without  power. The  receiver  will  activate  only  from  these 
“memorized” transmitters.  Each MegaCode  receiver  can  remember  a  maximum 
of 40 transmitters.
The receivers can operate from 12-30 volts AC or 10.5-30 volts DC and are normally 
powered from the gate operator. The relay contact(s) are rated at 5 amps @ 32 volts 
AC/DC NEC Class 2 circuit.
The MGR series has an “F” connector for attaching  an antenna. The receiver 
is supplied  with  a  9-inch  local antenna,  a three  foot 75 ohm  coaxial  cable, and  a 
bulkhead connector for mounting the antenna outside the gate operator enclosure
STEP 1  Connect receiver relay output
Connect the appropriate channel wires (Ch. 1 - two gray wires)., (Ch. 2 - two yellow 
wires) to the appropriate activation terminals on the gate operator.
STEP 2  Connect receiver to power
Connect the red power input wire to the  radio power and the black wire to the common 
terminal on the gate operator.
STEP 3  Mount the receiver
Use  the  screws  provided  to  mount  the  receiver  within  the  operator  housing.  This 
provides protection from the elements. Secure case with case screws.
STEP 4  Connect antenna
Connect the coaxial cable to the “F” connector on the receiver. Drill a 3/8” hole on 
the top of the operator housing for the bulkhead connector. Insert the connector and 
secure it with the nut and lock washer. Connect the cable and antenna to the bulkhead 
connector.
STEP 5  Open receiver case
To  open  the receiver case,  remove the  screws,  squeeze sides  of  case  and  rotate 
upward.
STEP 6A  MGR & MGR-2 channel one code switch
The pushbutton labeled S1 is used to program transmitters to channel one.
(760) 438-7000
USA & Canada (800) 421-1587 & (800) 392-0123
Toll Free FAX (800) 468-1340
www.linearcorp.com
RECEIVER
LOCAL 
ANTENNA BULKHEAD
CONNECTOR
3-FOOT 
CABLE
CASE SCREWS
MOUNTING 
HARDWARE
WASHER
NUT
MOUNT RECEIVER
INSIDE GATE 
HOUSIN
G
SECURE CASE 
CLOSED WITH TWO 
SCREWS AT BOTTOM
OF CASE
CONNECT COAXIAL 
CABLE TO "F" 
CONNECTO
R
SLIDE WEATHER
RESISTANT CA
P
OVER CONNECTION
INSERT BULKHEAD
CONNECTOR THROUG
H
OPERATOR HOUSIN
G
SECURE CONNECTOR 
TO HOUSING USING 
WASHER AND NUT
CONNECT CABLE TO
BULKHEAD CONNECTO
R
SQUEEZE BOTH SIDES AT TABS
AND TILT UPWARD
 S1 
 S2 
 S1 
CHANNEL ONE
PUSHBUTTO
N
USE THIS
PUSHBUTTO
N
TO ENTER 
TRANSMITTERS
INTO CHANNEL 
ON
E
PRINTERS INSTRUCTIONS 
 INSTR,INSTL,MGR SERIES - P/N: 225820 A - INK: BLACK - MATERIAL: 20 LB. MEAD BOND - SIZE: 8.500” X 11.000” - SCALE: 1-1 - SIDE 1 of 2


