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Product Description

Product Description

The GS18/GS18i GPS Splitter is a one-input, eight-output GPS device. This product typically finds application where an input from an active GPS roof antenna is split evenly between four receiving GPS units.

What is the differences between GS18 and GS18i

	GS18	GS18i	GS18-DC
Pass DC ports	IN, J1	IN, J1, J2, J3, J4, J5, J6, J7, J8	IN
Power Supply Port	J1	J1, J2, J3, J4, J5, J6, J7, J8	12V power port
Block DC Ports	J2, J3, J4, J5, J6, J7, J8 with 200 Ω load	No 200Ω load	J1, J2, J3, J4, J5, J6, J7, J8 with 200 Ω load

Product Dimension

Unit:mm

Specification

Items	Value
Model Number	GS18 / GS18i
Type	GPS Splitter
Place of Origin	Guangdong, China
Brand Name	GEMS
Certificate	CE, ROHS
Applications	Design for wireless infrastructure and survey
Net Weight (kg/pcs)	0.34 ~ 0.38 (different connectors)
Gross Weight (kg/pcs)	0.39 ~ 0.43 (different connectors)

Parameter				Conditions	Min	Typ	Max	Units
Freq. Range				Ant – Any Port	1150		1650	MHz
In &Out Imped.				In, all output ports		50		Ω
Gain	0dB			In- Output ports, ,Unused Ports - 50Ω	-1	0	1	dB
Gain	Amplified(15dB)			In- Output ports, ,Unused Ports - 50Ω	14	15	16	dB
Input SWR				All Ports 50Ω			1.5:1	-
Output SWR				All Ports 50Ω			1.5:1	-
Nois Figure- Amplified				0dB~15dB, Standard 10dB	4	1.5	1	dB
Gain Flatness(Amplified)				0dB~15dB			1.5	dB
Amp. Balance				\|J1-J2\|, Ant- Any Port, Unused Ports			0.5	dB
Phase Balance				Phase(J1-J2), Ant- Any Port, Unused Ports			1.0	deg
Group Delay Flatness							1	ns
Isolation		0dB~15dB		Adjacent Ports: In - 50Ω	28			dB
Isolation		0dB~15dB		Opposite Ports: In – 50Ω	38			dB
DC IN				Wall mount transformer	9	12	16	VDC
DC input from J1~J8				GS18, GS18i Standard configuration	3.3	5	16	VDC
DC input from J1~J8				GS18i, with 200Ω load	3.3	5	9	VDC
Device Current							30	mA
Current				Pass DC, DC input on J1, GS18			250	mA
Current				Pass DC, DC input on J1~J8, GS18i			250	mA
Max RF Output Power							-28	dBm
Operating Temperature					-40		85	℃
Maximum RF Input			Amplified	Maximum lossless RF input			0	dBm
Maximum RF Input			Passive	Maximum lossless RF input			30	dBm

RF Characterization Parameter Table 1

Frequency

（MHz）

Gain（dB）

Isolation(dB)

0dB

15dB

Gain: 0~15dB

IN-1

IN-2

IN-3

IN-4

IN-5

IN-6

IN-7

IN-8

IN-1

IN-2

IN-3

IN-4

IN-5

IN-6

IN-7

IN-8

1-2

1-3

1-5

3-5

1150

0.0

0.1

0.0

0.1

0.3

0.2

0.7

0.3

14.8

14.9

14.6

15.1

15.3

14.9

15.4

1176

0.0

0.1

0.2

0.6

0.3

14.8

14.9

14.7

15.1

15.3

14.9

15.4

1207

0.1

0.0

0.1

0.2

0.0

0.1

0.4

0.3

14.9

14.8

15.0

15.3

15.0

15.1

1227

0.1

0.0

-0.3

-0.1

0.1

-0.1

0.4

0.0

14.9

15.1

14.7

15.2

15.0

15.4

15.1

15.3

1268

0.1

-0.2

0.1

0.0

0.4

0.0

14.9

15.0

14.8

15.1

15.0

15.4

15.1

15.3

1545

0.2

0.1

0.3

0.2

0.0

0.2

0.1

15.3

15.4

15.6

15.3

15.5

1561

0.2

0.1

0.4

0.2

0.0

0.2

0.1

15.3

15.5

15.6

15.3

15.5

1575

0.2

0.1

0.2

0.1

0.3

0.2

15.3

15.2

15.5

15.2

15.4

15.2

15.3

1609

0.1

0.2

0.1

0.2

0.1

0.3

14.9

14.8

14.9

14.8

15.1

14.9

14.8

15.1

1650

-0.4

-0.2

-0.4

-0.1

-0.4

-0.1

-0.2

-0.1

14.5

14.6

14.9

14.7

14.3

14.5

14.1

14.4

RF Characterization Parameter Table 2

Frequency

（MHz）

Noise Figure(dB)

VSWR

0dB Gain

15dB Gain

1150

3.7

1.9

1.1

0.8

1.5

1.4

1.3

1.4

1.3

1.2

1.3

1.4

1.3

1.2

1176

3.4

1.9

1.1

0.8

1.5

1.4

1.3

1.4

1.3

1.2

1.3

1.4

1.3

1.2

1207

3.9

1.9

1.2

0.8

1.4

1.3

1.2

1.4

1.3

1.2

1227

3.9

1.9

1.2

0.9

1.4

1.3

1.2

1.3

1.2

1.4

1.3

1.2

1.3

1268

3.8

2.0

1.2

0.9

1.4

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1545

3.7

2.0

1.21

0.9

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1561

3.6

2.1

1.2

0.9

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1575

3.6

2.1

1.2

1.0

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1609

4.0

2.2

1.2

1.0

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1.2

1.3

1650

3.9

2.2

1.3

1.0

1.3

1.2

1.3

1.2

1.5

1.3

1.2

1.3

1.2

1.3

1.2

1.3

Packing & Delivery

Each piece of splitter will be packed perfectly and safely in the customized boxes.

Then, all the boxes will be packed into a big carton one by one, which is strong enough to withstand rough handling during transportation, so the goods can be delivered to you to your satisfaction.

If extra packing demand is required, just pls let us know, we'll try our best to meet your requirements.

Company Profile

Company Introduction

GEMS NAVIGATION, was established in 2007, is specialised in designing, production and sales of coaxial microwave devices and equipment, GPS indoor coverage systems and accessories, high-power coaxial attenuators, high-power coaxial load etc., which are widely used in microwave communications, mobile communications, high-precision measurement, power, research institutions, colleges and universities and other fields.

We possess a professional R & D team who specialised in microwave communication designing and manufacturing for more than 10 years.

We not only focus on the technical excellence of our own products, but also learning and practicing advanced technology at home and abroad to strengthen exchanges and cooperation.

Customer Photos

As a result, we have the opportunity to serve customers from all walks of life, including Global Top 500 companies, like Huawei, Nokia, China Mobile, China Telecom, APPLE, Samsung, SONY, Lenovo, etc.

FAQ

1. Who are we?

We are based in Guangdong, China, start from 2007,sell to Domestic Market(60.00%),South Asia(6.00%),Southeast Asia(5.00%),Central America(5.00%),Mid East(4.00%),Southern Europe(3.00%),Eastern Asia(3.00%),North America(3.00%),Northern Europe(3.00%),Western Europe(2.00%),South America(2.00%),Eastern Europe(2.00%),Africa(1.00%),Oceania(1.00%).

There are total about 11-50 people in our office.

2. How can we guarantee quality?

Always a pre-production sample before mass production;
Always final inspection before shipment.

3. What can you buy from us?

GPS Repeaters, GPS Splitter, GPS Amplifier, GPS Antenna, Indoor GPS Systems.

4. Why should you buy from us and not from other suppliers?

More than 20 years experience of microwave and communication designing and manufacturing. Leading in GNSS indoors system and communication technology. Leading in sharing GPS antenna system for BBU group.