VGLCDLA30RPDC
Variable Gain GPS 30 dB Line Amplifier with LCD Technical
Product DataFeatures••

Easily Customizable Variable Gain Amplifiero Customize the output gain between 0 and30 dB with easy-to-use buttons and LCDscreen.
Wide Accepted Frequency Rangeo Accepts signals from the entire L-Band,
covering all major GNSS constellations.

Description
This Variable Gain with LCD screen Line Amplifier 30dB Regulated Pass DC (VGLCDLA30RPDC) isan active one input, one output amplifier optimized for GPS applications. This amplifier will amplify
the provided signal from 0 to 30 dB and can be changed using the LCD and the control buttons to theside. This equipment accepts signals covering all major GNSS constellations with excellent gainflatness. In the standard configuration, the J1 port accepts DC voltage from a connected GPSreceiver. This voltage is regulated and used to power the internal amplifiers and screen while
unregulated voltage is passed through the antenna port to power a connected active antenna or other
upstream devices.
In the Networked (Externally Powered) configuration, the output (J1) is DC Blocked, and a customerdefined output voltage is provided via the antenna port. Custom gain, DC power, and connector
configurations are available upon request.
Use Cases• As an in-line amplifier to negate the insertion loss of a long cable run.
• To add amplification to a signal provided by a passive antenna.
• As an amplifier in a re-radiating system.
• In combination with one of our splitter devices to create a GPS distribution network.
• To add customizable gain levels to any signal distribution network.

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For sales or technical support contact us at 1-800-463-3063 or salestech@gpsnetworking.com

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Electrical Specifications, TA=25°C
General Specification
Parameter

Notes

MinFrequency Range

Covers all major GNSS constellations.

1.1

Characteristic
Impedance

Input and output ports matched to 50Ω.

50Ω

Reverse Isolation

Attenuation applied signals traveling backwards through the amplifier: S12.

-60

dB

Req. DC Input V.

Operating voltage range for non-networked units.

Current Draw

Typical current consumption.

GPS L1 & L2 RF Specification (1)Parameter
Min Gain
Max Gain

Notes

The relative increase in signal power provided by the amplifier when set to theminimum gain level.
The relative increase in signal power provided by the amplifier when set to themaximum gain level.

Input SWR

Input Standing Wave Ratio: S11

Output SWR

Output Standing Wave Ratio: S22

Typ

3.3

Max

Unit

1.7

GHz

1542

VDCmA

Min

TypMaxUnit-101dB

2930

31dB

2.0:1

-

2.0:1

-

L1:4.4L2:6.25
L1:1.9L2:4.66

Noise Figure Min Gain

The increase in noise power relative to an ideal amplifier.

Noise Figure Max GainThe increase in noise power relative to an ideal amplifier.

Band Gain Flatness

The difference in loss or gain between the L1 and L2 frequencies.

0.5

Input P1dB

The 1dB compression point.

-22.9

dBm

3rd Order Intercept

Third-order intercept point at L1.

-14

dBm

dB
dB
1.0

dB

(1): Performance is slightly reduced around GPS L5. If working on sensitive L5 applications, please request performance data.
External Power Options (Networked Option)
Voltage Input
110VAC
220VAC240VAC (United Kingdom)
Customer Supplied DC 9-32 VDC

Style
Transformer (ITA Type A Wall Mount)
Transformer (ITA Type C Wall Mount)Source Voltage Options
Transformer (ITA Type G Wall Mount)
MIL-DTL-5015 10SL Two-Pin DC Connector(Includes Mate)DC Voltage Out
Max Current out For Corresponding Vout
3.3 V
110mA
5V
130mA
9V
140mA
Output Voltage Options (2)
12V
180mA
15V
220mA
CustomCustomStandard DC Configuration without External Power Option
All Ports Pass DC
Standard DC Configuration with any External Power Option (AC/DC or Military DC)
J1 Port DC Blocked with 200Ω load standard
Antenna Port is DC PassConnector Options

Connector Style
Type N-female

ChargeNo Charge

Type SMA-female

No Charge

Type TNC-female

No Charge

Type BNC-female

No Charge

OtherContact GPS Networking(2): With Network Option, any RF port (input or output) can be specified to Pass DC or Block DC
Rev B

For sales or technical support contact us at 1-800-463-3063 or salestech@gpsnetworking.com

2

VGLCDLA30RPDCPart Number Configuration

Rev B

For sales or technical support contact us at 1-800-463-3063 or salestech@gpsnetworking.com

3

VGLCDLA30RPDC
Performance

VGLCDLA30RPDC (Maximum Gain)
Each VGLCDLA30RPDC ships with a test sheet that verifies critical performance characteristics,
such as gain, input VSWR, and amplitude balance; a typical VNA test sheet is shown below.

Rev B

For sales or technical support contact us at 1-800-463-3063 or salestech@gpsnetworking.com

4MechanicalContact us at salestech@gpsnetworking.com for 3D models or CAD drawings.