M2 Antenna Systems FG2227-21X4CP User manual

M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722
Tel: [phone] Fax: [phone] Web: www.m2inc.com
©2019 M2 Antenna Systems Incorporated 4/10/2019
REV A
Model ........................................ FG2227-21X4CP
Frequency Range ...................... 2210 To 2245 MHz
Usable Range ............................ 2200-2255 MHz
System*Gain .............................. 20 dBic
Front to back .............................. 25 dB Typical
Beam width .............................. E=13° H=13°
Feed type ................................... Horn
Feed Impedance. ....................... 50 Ohms Unbalanced
VSWR ........................................ 1.2:1 Typical
Input Connector..........................“N” Female
System Polarity ..........................RHC
Power Handling ..........................500 Watts
Boom Length / Dia .....................39”
Stacking Distance ......................12.5”
Mast Size....................................1-1/4” to 2”
Wind area / Survival ...................4 Sq. Ft. / 100MPH
Weight / Ship Wt. .......................16 Lbs. / 20 Lbs.
M2 Antenna Systems, Inc.
Model No: FG2227-21X4CP
FEATURES:
The FG2227-21 is a high gain, Wave Guide Fed Yagi. Computer optimized for use in the 2210-2245 MHz band. Me-
chanically optimized computer calculations are held by CNC cut rod elements. The low-loss Radome strengthens the an-
tenna as well as providing protection against inclement weather and snow build up on the element structure. The stand-
ard assembly configuration is RHCP, Changing to LHCP is easily achieved by altering the connector position. Contact M2
for complete instructions.
SPECIFICATIONS:
*Subtract 2.14 from dBi for dBd

FG2227-21X4CP OVERALL DIMENSIONS
CUSTOMER SUPPLIED CROSS BOOM

FG2227-21X4CP ASSEMBLY INSTRUCTIONS
STEP 1:
Install MOUNTING BASE PLATE to
CROSS BOOM. Tighten all hardware.
STEP 2:
Install the ANTENNA to the MOUNTING
BASE PLATE . Make sure to mount the AN-
TENNA at its balance point listed in graphic
to reduce stress on elevation positioner mo-
tor. Leave hardware loose to orient for circu-
lar polarity.
MOUNTING
BASE PLATE
(QTY 2)
2” CRADLE
(QTY 3)
BOLT, 1/4-20 X 2-1/2”
LOCK WASHER, 1/4”
(QTY 6)
BOLT, 1/4-20 X 1-1/4”
LOCK WASHER, 1/4”
(QTY 6)
CROSS BOOM
ANTENNA 1
16.312”
SCREW, 6-32 X 1.0
SHTMTL, SS
(QTY 2)
MOUNTING
BASE CRADLE
SPLICE
CLAMP
(QTY 3)

STEP 3:
Install ANTENNAS 3 onto MOUNTING
BASE PLATE. For proper circular polarity of
the system, ANTENNA 3 needs to be oriented
the same direction as ANTENNA 1. Use the
FEED CONNECTORS as reference for ELE-
MENT orientation. See graphic. Leave hard-
ware loose.
STEP 4:
Install the two remaining ANTENNAS (2
and 4). They need to be oriented in the same
direction as each other, but perpendicular to
the first two ANTENNAS (1 and 3) installed.
Continue leaving hardware loose.
FG2227-21X4CP ASSEMBLY INSTRUCTIONS
ANTENNA 1
NOTE: For illustration purposes the COVER is transparent.
ANTENNA 3
REAR OF
ANTENNA
ANTENNA 4
ANTENNA 2
SCREW, 6-32 X 1.0,
SHTMTL SS
(QTY 8)
15”
MOUNTING
BASE CRADLE
(QTY 4)
ANTENNA 4
ANTENNA 1
ANTENNA 3

FG2227-21X4CP ASSEMBLY INSTRUCTIONS
STEP 5:
Mount SUPPORT BAR to rear of ANTEN-
NAS 2 and 4. Tighten hardware.
STEP 6:
Mount the second SUPPORT BAR to rear
of ANTENNAS 1 and 3. Tighten hardware.
Make sure to install 1/4λ SPACER between
SUPPORT BARS. The SPACER is required
for the system to be circularly polarized.
BOLT, 1/4-20 X 1-1/4”
LOCK WASHER, 1/4”
(QTY 2)
SUPPORT BAR
SMALL
SPACER
(QTY 2)
ANTENNA 2
SUPPORT BAR 2
ANTENNA 4
ANTENNA 3
ANTENNA 1
BOLT, 1/4-20 X 2-1/4”,
FLAT ALLEN HEAD
LOCKNUT, 1/4-20
MOUNT PLATE
PD 2227-21X4CP
1/4λ SPACER
BOLT, 1/4-20 X 1-1/4”
LOCK WASHER, 1/4”
(QTY 2)
SMALL
SPACER
(QTY 2)

FG2227-21X4CP ASSEMBLY INSTRUCTIONS
4 PORT
POWER DIVIDER
SCREW, 8-32 X 1-1/4”
LOCKNUT, 8-32
(QTY 2)
SCREW, 6-32 X 1.0,
SHTMTL, SS
(QTY 8)
16.312”
16.312”
15”
ANTENNA 4
MOUNT PLATE
PD 2227-21X4CP
STEP 7:
Tighten all mounting hardware so the AN-
TENNAS are properly balanced and 1/4λ shift-
ed.
STEP 8:
Mount 4 PORT POWER DIVIDER onto
MOUNTING PLATE. Tighten hardware.
ANTENNA 1
ANTENNA 2
ANTENNA 3

FG2227-21X4CP ASSEMBLY INSTRUCTIONS
STEP 9:
Connect PHASING CABLES to the POWER DIVIDER. Connect the PHASING CABLES such that
the ANTENNAS oriented in the same direction are on the same end of the POWER DIVIDER. PHAS-
ING CABLES for ANTENNA 1 and 3 should be directly across from each other. PHASING CABLES for
ANTENNAS 2 and 4 should be directly across from each other.
ANTENNA 1
ANTENNA 2
ANTENNA 3
ANTENNA 4
FEED
CONNECTOR

DESCRIPTION QTY
FG2227-21, ANTENNA ASSEMBLY, 2210 To 2245 MHz ..................................... 4
FG22274PRTPD, 4 PORT POWER DIVIDER, 2227 MHz ..................................... 1
MOUNTING BASE PLATE, DELRIN (M2A2030).................................................... 2
MOUNTING BASE CRADLE, DELRIN (M2AHY2031) .......................................... 4
SUPPORT BAR, ALUMINUM (M2AHY2032) ......................................................... 2
MOUNT PLATE PD 2227-21X4CP, ALUMINUM (M2AHY2033) ............................ 1
SPLICE CLAMP, ALUMINUM (M2AHY2036) ......................................................... 3
2” CRADLE, ALUMINUM (M2AMC0151)................................................................ 3
SPACER, .500” OD X 1.062”, ALUMINUM (M2ARS0083) ..................................... 1
PHASING CABLE................................................................................................... 4
ZIP TIES, 7”............................................................................................................ 8
HARDWARE
BOLT, 1/4-20 X 2-1/2”, HEX TAP, SS .................................................................... 6
BOLT, 1/4-20 X 2-1/4”, FLAT ALLEN HEAD, SS.................................................... 1
BOLT, 1/4-20 X 1-1/4”, HEX HD, SS ...................................................................... 10
LOCKNUT, 1/4-20, SS............................................................................................ 1
LOCK WASHER, 1/4”, SS ...................................................................................... 16
SCREW, 6-32 X 1.0”, PH SHTMTL, SS.................................................................. 8
SCREW, 8-32 X 1-1/4”, PHILLIPS PAN HEAD, SS................................................ 2
LOCKNUT, 8-32, SS............................................................................................... 2
M2 ANTENNA SYSTEMS, INC.
4402 N. SELLAND AVE.
FRESNO, CA 93722
[phone] FAX: [phone]
www.m2inc.com Email: [e-mail]
FG2227-21X4CP PARTS & HARDWARE