Spectracom 8226 Operating and maintenance instructions

Model 8226 GNSS Antenna Surge Suppressor •6-November 2017 Page 1
© Spectracom, 2007-2017 • spectracom.com
Installation Guide
Spectracom part no. 8226-0002-0050; Rev. 7, Nov. 2017
Spectracom recommends the use of an inline coaxial protector for all products connected to an
outside GNSS antenna.
Spectracom offers the Model 8226 GNSS Antenna Surge Suppressor to protect a connected
GNSS receiver from damaging voltages occurring on the antenna coax cable. Voltages
exceeding the impulse suppressor trip point are shunted to the system ground. The Model 8226
is designed to withstand multiple surges.
Figure 1-1: 8226 Surge supressor with bracket
Model 8226 GNSS Surge Suppressor
Model 8226 Surge Suppressor

Page 2Model 8226 GNSS Antenna Surge Suppressor • 6-November 2017
Model 8226 Surge Suppressor
Installation Guide
1.1 Mounting Bracket Installation
Install the suppressor indoors, preferably where the coax enters the building. Connect the
largest- gauge grounding wire available to the mounting bracket, using the M8 attachment
screw; see Fig.1-2:
Figure 1-2: Model 8226 with optional mounting bracket
1.2 Grounding Plate Installation
Optionally, the suppressor can be mounted to a grounding panel or bulkhead, as shown in
Fig. 1-3: Spectracom offers a Surge Protector Grounding Kit, part number 8226-0002-0600,
that serves as a single point ground connection for the Model 8226 Surge Suppressor.
The kit includes a copper grounding plate on melamine-covered particle board, mounting hard
ware, copper strapping, strap clamps, ground wire, a ground clap, copper paste, an appro
priate mounting bracket, and ancillary hardware. A single point ground system is
recommended to provide optimum protection from lightning strikes.

Model 8226 GNSS Antenna Surge Suppressor •6-November 2017 Page 3
© •
Spectracom , 2007-2017 spectracom.com
Model 8226 Surge Suppressor
Installation Guide
Mount the grounding panel indoors, preferably close to where the antenna coax enters
the building and direct access to the system ground is available.
The grounding panel must be connected to a low impedance (both low resistance and
low inductance) ground system to assure proper operation of the surge protection equip
ment. To minimize the inductance between the ground plate and system ground inter
connection, keep the copper grounding strap as straight as possible.
Limit bends to a radius of 8 inches or larger. Thoroughly clean the copper panel to
remove any oxidation or contaminants prior to installation. Apply the supplied copper
paste to all junctions on the copper panel to maintain a low-impedance connection.
Figure 1-3: Grounding kit panel installation
Each Model 8226 includes two clamp type male N connectors. These connectors can be used to
splice the Model 8226 into the antenna coax. The connectors are compatible with Spectracom
CAL7xxx cable assemblies and Times Microwave LMR- 400 equivalent coax. Connector
assembly instructions are shown below:

Page 4Model 8226 GNSS Antenna Surge Suppressor • 6-November 2017
Model 8226 Surge Suppressor
Installation Guide
1.3 Assembly Instructions, Type N Connectors, and Clamps
The instructions below apply to Type N Connectors, part number P051-0001-0100.
Using the manufacturer’s part list, verify that all the connector parts are included. (See also
connector diagram below.)
Figure 1-4: Connector component; and below Table 1-1: Connector Assembly

Model 8226 GNSS Antenna Surge Suppressor •6-November 2017 Page 5
© •
Spectracom , 2007-2017 spectracom.com
Model 8226 Surge Suppressor
Installation Guide
1.4 Document Revision History
Revision ECO Description Date
A – Legacy documentation
B 2017 Reformatted instructions for latest style standards. Made minor text edits
thhroughout. Added reference to Grounding Kit, 8226-0002-0600
Feb.
2007
C 2333 Updated Figure 1 to accurately represent new hardware. June
2009
D 2621 Minor maintenance & adjustments made to reflect hardware changes (cable
jacket dimensions).
April
2011
E 2715 Update Figure 1, additional minor document maintenance. August
2011
6 0445 Connector assembly instructions revised. Sept
2015
7 0121 Changed arrestor model and instructions for grounding.
Plus: Layout and minor content modifications.
Nov.
2017