Orolia 8227 GPS Inline Amplifier Product Manual

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Orolia 8227 GPS Inline Amplifier Product Manual | Manualzz

Model 8227 GPS Inline Amplifier

Figure 1: Model 8227 GPS Inline Amplifier

An inline amplifier is required whenever long antenna cable length attenuates the GPS signal below the receiver’s recommended minimum input level. The maximum cable length permitted without an inline amplifier depends on the cable and receiver types used. Spectracom products use a GPS receiver that permits up to 12 dB cable loss.

Using Orolia CAL7xxx or Times Microwave LMR-400 coax, an amplifier is needed whenever antenna cable lengths exceed 200 feet.

The Model 8227 GPS Inline Amplifier, shown in Figure 1, extends the maximum cable length to 600 feet. The Model

8227 provides 20 dB of gain and is powered by the GPS receiver.

Each Model 8227 includes two clamp type male N connectors. These connectors can be used to splice the

Model 8227 into the antenna coax. The connectors are compatible with Spectracom CAL7xxx cable assemblies or

Times Microwave LMR-400 equivalent coax. Connector assembly instructions are found at the end of this document.

A five-foot long coaxial cable is also provided with each

Model 8227. This cable connects the amplifier to the surge suppressor. This cable is rated for indoor usage only.

Refer to Figure 2 for Model 8227 installation guidelines.

The cable lengths shown in Figure 2 represent Spectracom

CAL7xxx cable. The equivalent cable loss expressed in dB is provided for reference when using other cable sources.

Place the inline amplifier within 200 feet (~10 dB cable loss) of the antenna to optimize the signal to noise ratio.

Whenever possible install the inline amplifier indoors after the impulse suppressor using the supplied 5-foot cable.

The amplifier can be installed outdoors, providing care is taken to weatherproof the connections.

Model 8227 GPS Inline Amplifier

Due to unique system dynamics of the antenna, amplifier and receiver, a minimum of cable length of 450 feet (24 dB cable loss) is required to prevent overloading the GPS receiver used in the Models 8183, 8183ES and 8189. The GPS receiver used in all other Orolia products do not require a minimum cable length.

MODEL 8225

INSTALL IMPULSE SUPPRESSOR

BETWEEN THE ANTENNA AND

AMPLIFIER WHENEVER POSSIBLE.

5 FOOT CABLE INCLUDED

MODEL 8226

200' MAXIMUM

(10 dB MAXIMUM)

MODEL 8227

400' MAXIMUM

OROLIA

GPS RECEIVER

450’MINIMUM

1

, 600' MAXIMUM

(24 dB MINIMUM

1

, 33 dB MAXIMUM)

1. Minimum cable required for Models 8183, 8183ES and 8189.

Figure 2: Cable Guidelines

Model 8227 Specifications

Connectors: Type N Female

Gain:

VSWR:

Power:

20 ±3 dB

≤1.8:1

3.6 – 15 VDC, 15 mA maximum

NOTE: The Orolia Model 8226 Impulse Suppressor clamps voltage at 6 VDC.

Model 8227 GPS Inline Amplifier

Assembly Instructions

(Part Number P051-0001-0100 Type N Connectors)

The table below lists the recommended tools needed to assemble the connectors. Verify all parts of the connector have been received as shown in the connector diagram below.

Tools Required

Sharp Knife or Razor Blade

Cable Cutter

Soldering Iron and Solder

Ruler

Wire Cutters/Scissors

5/8” Open End Wrench

11/16” Open End Wrench

Multimeter

Step 1

Cut the cable end squarely and place the nut, washer, and gasket onto the cable as shown. Make certain the gasket’s “V” groove is oriented towards the end of the cable. Cut the cable jacket back to dimension A of 0.460 inches (11.7 mm). Do not cut or knick the braid.

Step 2

Comb out the braid and fold back to expose the dielectric. Cut the dielectric back to dimension B of 0.234 inches (6.0 mm). Do not cut or knick the center conductor.

Step 3

Comb the braid forward and slide the clamp onto the cable as shown. Make certain that the beveled edge of the clamp is oriented towards the gasket

“V” groove to form a weatherproof seal.

Step 4

Fold the braid back over the clamp. Comb the braid to evenly distribute it over the clamp and trim to the proper length as shown.

Step 5

Verify there is no braid or dielectric foil that may short against the center conductor. Tin the center conductor and then solder on the male contact as shown.

Step 6

Insert the cable assembly into the connector body. Verify the gasket “V” grooves fit into the clamp edges. Hold the body with the 11/16” wrench and tighten the nut using the 5/8” wrench. Using the multimeter, measure continuity of the center conductors on each end of the cable. It should be close to 0 Ω. Measure the continuity between the center conductor and connector body. It should be an open circuit.

Revision Level

C

D

E

ECN Number

2199

2399

2621

Description

Document revised with new style and illustration. Power specifications updated.

Corrected to 12dB loss figure.

Minor maintenance & adjustments made to reflect hardware changes (cable jacket dimensions).

www.orolia.com

[email protected]

10 August, 2020. Model 8227 GPS Inline Amplifier

Specifications subject to change or improvement without notice

© 2020 Orolia

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