Gems GNSSRK-M-RDV User manual
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Contents
1. System characteristics................................................................................................................................................................. 3
2. Installation diagram...................................................................................................................................................................... 4
3. Description ...................................................................................................................................................................................... 6
4. Typical Application........................................................................................................................................................................ 6
5. Equipment List With Standard Configuration .................................................................................................................... 6
6. System connection diagram ..................................................................................................................................................... 8
7. System Components..................................................................................................................................................................11
7.1 Digital Display Step Adjustable Amplifier RGA30-DV ........................................................................................11
7.1.1 Function:................................................................................................................................................................11
7.1.2 Specification.........................................................................................................................................................12
7.1.3 The amplifier Installation..................................................................................................................................12
7.2 Antenna...............................................................................................................................................................................14
7.2.1 Roof Antenna S440......................................................................................................................................14
7.2.2 GNSS antenna S440 installation ...................................................................................................................15
7.3 Re-radiate Antenna GRA10 .........................................................................................................................................17
7.4 Cable Assembly................................................................................................................................................................18
7.4.1 RG8 ..........................................................................................................................................................................18
7.4.2 XHY240 ..................................................................................................................................................................19
8 Typical faults and solutions.......................................................................................................................................................20
9 Frequency Reference Table.......................................................................................................................................................20
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1. System characteristics
GNSSRK Serial Repeater Kit
System signal：GPS/GLONASS/Beidou/Galileo/IRNSS/QZSS/SBAS/NAVIC/OmniStar
Frequency range of the antenna:1556~1623MHz and 1164~1288 MHz;
Frequency range of the amplifier:1164~1616 MHz;
Gain digital display adjustable in steps
Digital gain adjustment: 0-30dB, LED digital display；
Serial command control；
Input and output port power setting；
Coverage Range:
GNSSRK-M-RDV: A single antenna radiates a radius of 5-20
meters；
GNSSRK-M-RDV4: 4 antennas, each radiating 5-20 meters ；
GNSSRK-M-RDV8: 8 antennas, each radiating 5-20 meters；
The addition of the line amplifier GA40 to the front and end
of the system can extend the radiation range.
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2. Installation diagram
Satellite signals
l
Roof Antenna (S440)
(TIMING 4000)
Antenna (GRA10)
Step Adjustable Amplifier
XHY240, 10M
Lighting Protector
Indoor
GNSS Receiver
Satellite signals
RG8, 30M
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Installation steps
1. Receiving antenna S440 mounted on the roof；
2. Cable assembly RG8 fixed along the out wall, one terminator connects S440,the another to
protector at the appropriate place. In some special environment, select PE or PVC material
plastic pipe to protect the cable assembly is quite sensible;
3. Lightning arrester and amplifier fixed on the wall or on the table ;
4. Cable assembly XHY240 is fixed along the ceiling of the operating place;
5. Antenna GRA10 be fixed on the ceilling .
Quality Commitment
All products have been strictly inspected, all are qualified products.
We promise one-year guaranty and 5-year available.
Under warranty, products gone wrong which be identified not be human factor, can be
replaced free or repaired. Freight be charged by GEMS NAVIGAITON.
Return Policy
Our product and its packaging have LOGO and Serial-number, you should not tear up them,
as we will depend on them to deal with the return product.
Service phone：86-755-29644311 or email to: sales@gemsnav.com.
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3. Description
The GNSSRK-M-XXXX series GNSS repeater kit is to direct outdoor full-band navigation
satellite signals to places where indoor or other satellite signals cannot reach, and complete
various test work that should have been completed outdoors indoors.
4. Typical Application
For testing
For testing the cell- phone, PND, car navigators, tracker, survey products, etc.
For the purpose of GNSS signal covering
Car parks, lab, aviation manufacturing hangar, trade shows, Emergency-, safety
vehicles, public transportation etc.
5. Equipment List With Standard Configuration
GNSSRK-M-RDV
Amplifier: RGA30-DV ,1 ea;
GNSS Antenna: S440,1 ea;
Cable Assembly: RG8,30M, 1ea;
Cable Assembly: XHY240,20M,1 ea;
Cable Assembly: XHY240,5M,1 ea;
Sending Antenna: GRA10,1 ea;
Ligting-protector: 1 ea;
Connector：NK-NK 1ea
GNSSRK-M-RDV4
Amplifier: RGA30-DV ,1 ea;
GNSS Antenna: S440,1 ea;
Cable Assembly: RG8,30M, 1ea;
Cable Assembly: XHY240,20M,4 ea;
Cable Assembly: XHY240,5M,1 ea;
Sending Antenna: GRA10,4 ea;
Ligting-protector: 1 ea;
Connector：NK-NK 1ea
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GNSSRK-M-RDV8
Amplifier: RGA30-DV ,1 ea;
Receiving Antenna: S440,1 ea;
Cable Assembly: RG8,30M, 1ea;
Cable Assembly: XHY240,20M,8 ea;
Cable Assembly: XHY240,5M,1 ea;
Sending Antenna: GRA10,8 ea;
Ligting-protector: 1 ea;
Connector：NK-NK 1ea
RF coaxial cable assembly can make more choices according to the actual
needs of customers, please contact our company's sales for support.
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6. System connection diagram
GNSSRK-M-RDV
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GNSSRK-M-RDV4
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GNSSRK-M-RDV8
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7. System Components
7.1 Digital Display Step Adjustable Amplifier RGA30-DV
7.1.1 Function:
Used to adjust system gain, 0-30 dB adjustable, you can control when needed. The input and
output can be set PDC(Pass DC ) or BDC(Block DC) state. The system power supply voltage is 220V
AC.
①and②are RGA30-DV input and output.
③For power control switch. System power-on when allocated to upward, opposite, system stops
working.
④For the gain adjustment button, you can adjust the gain size, you can adjust the controller
gain increase or decrease (0~30dB by 1dB step).
⑤Set the PDC or BDC state:：
RGA30-DV ：Set the IN and OUT, PDC(Pass DC) or BDC(Block DC)
RGA30-DV4：Set the IN port only, the power-on state of the output port is factory set,
PDC(Pass DC) or BDC(Block DC)
RGA30-DV8：Set the IN port only, the power-on state of the output port is factory set,
PDC(Pass DC) or BDC(Block DC).
⑥For the digital display, showing the current gain value of the amplifier, and the voltage of
the input and output ports.
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7.1.2 Specification
Parameter
Condition
Mini
Std.
Max
Unit
Frequency Range
In ,Out, 50Ω
1150
1650
MHz
Impedance
In ,Out
50
Ω
Gain
Digital Step Adjustable
0~30
dB
Input VSWR
2.0:1
-
Output VSWR
2.0:1
-
Noise Figure
3
dB
Gain Flatness
3
dB
Delay Flatness
1
ns
Power Input
220VAC
100
220
264
VAC
Current
250
mA
1dB Compression
RGA30-DV
-4
dBm
RGA30-DV4
-29
RGA30-DV8
-29
Max RF Power
RGA30-DV
0
dBm
RGA30-DV4
-23
RGA30-DV8
-27
Nun. Of input
GA30-DV,GA30-DV4,GA30-DV8
1
个
Nun. Of Output
RGA30-DV
1
RGA30-DV4
4
RGA30-DV8
8
Max RF Input
Maximum lossless RF input
0
dBm
Working Temperature
-40°
85°
7.1.3 The amplifier Installation
Typical mounting scenarios for the RGA30-DV series are wall-mounted, or mounted in a standard
19-inch cabinet, or sometimes on a desk.
Mounted on the wall
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On the table
Fits in a standard 19-inch cabinet
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7.2 Antenna
7.2.1 Roof Antenna S440
Full GNSS Band: GPS/GLONASS/Beidou/Galileo/IRNSS/QZSS/SBAS/NAVIC/OmniStar
GPS:L1,L2,L5;
Glonass:G1,G2;
Galileo:E1,E2,E5a,E5b;
Beidou2:B1,B2,B3;
IRNSS/QZSS/SBAS/NAVIC/OmniStar;
Electrical parameter:
Low Noise Amplifier: Specifications:
Frequency [MHz]
1555~1623/1164~1288
Impedance
50Ω
Gain [dBi]
40±2(LNA included)
Polarization
right-hand circular polarized（RHCP）
Axial ratio [dB]
≤3
Elevation Coverage
360°
Input（VSWR）
≤2.0
Antenna element gain
5 .5dBi
Frequency [MHz]
1556~1623/1164~1288
Gain (dB)
40±2
Flatness in bandwidth (dB)
±2 dB
Noise Figure (dB)
≤2 dB
Output (VSWR)
≤2.0
Input (VSWR)
≤2.0
DC Voltage
DC 3.3－12V
DC Current
DC ≤45mA
Differential transmission delay
5ns
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Mechanical characteristic:
7.2.2 GNSS antenna S440 installation
(1) Antenna spacing: >5M; transmitting and receiving antennas cannot be placed upside down
except as specified in the manual.
(2) the antenna should be in the lightning arrester protection
(3）Antenna waterproof specification:
① The feeder joints need to be wound with waterproof self-adhesive tape, starting with the lower
part of the joint connection and filling the low-lying part with the tape.
② Stretch the self-adhesive tape to twice its length during the winding process, and use 60cm long
waterproof tape for each connector, requiring three layers of winding. The winding direction should be
the same as the tightening direction of the feeder head to avoid loosening of the feeder head during
the winding process.
③ layer by layer winding, and then reverse the direction of winding layer by layer, the upper layer
covers the next layer of about one-third, so as to prevent rainwater leakage, and finally reverse the
direction of winding layer by layer, winding a total of three layers, layer by layer winding waterproof
tape, winding process do not cut off the tape. Tape winding length to exceed the feed head about 20
mm.
Size [mm]
Ø165×68.8
Connecting
TNC-C-K
Operation Temperature [℃]
-40~+85
Reposition Temperature [℃]
-55~+85
Humidity [%]
95% non-condensin
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④ Installed antenna feeder joints, GPS antenna feeder joints, and other independent exposed cable
joints, should be strictly in accordance with the "1 + 3 + 3" treatment (1 layer of insulation tape + 3
layers of waterproof tape + 3 layers of insulation tape wrapping) waterproof.
⑤ can also increase the clinker tube to cover the cable part, placing the cable joint part of the water.
4）Waterproof bend
① feeder line from outdoor into the room, if the feeder line is higher than the lower edge of the
feeder window, must be made at the outdoor feeder window - waterproof bend, the lowest point of
each feeder line after waterproof bend must be lower than the lower edge of the feeder window 10
cm
② If the feeder line is lower than the lower edge of the feeder window before entering the room, it is
not necessary to make a waterproof bend.
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7.3 Re-radiate Antenna GRA10
Fix the antenna to the ceiling, or to a concrete beam; usually in the center of the area where GPS
signal coverage is required;
This product factory with fixed bracket, you can refer to the diagram to fix
Electrical parameters Mechanical parameters
Frequency [GHz]
1.15-1.7
Input impedance
50Ω
Polarization method
Vertical polarization
Horizontal coverage angle
3600
Output standing wave (VSWR)
≤1.45
Maximum power
50W
Lightning protection
DC Grounding
Input Interface
NK/SMAK
Size
Φ186X85mm
Antenna cover material
ABS, UV protection
Antenna Color
white
Operating temperature
-40~+60℃
Ultimate temperature
-55~+70℃
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7.4 Cable Assembly
7.4.1 RG8
RG8,30M is usually used for connecting Receiver antenna S440
and lighting-protector. You can calculate the length according to
your actual environment, also 60m or 90 be selected.
The connectors are N Male-N Male.
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7.4.2 XHY240
The cable assembly XHY240 is the cable that connects the
amplifier RGA30-XXX to the antenna GRA10.
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8 Typical faults and solutions
GNSS repeater/GPS booster/GPS signal amplifier GNSSRK-M-RDV fault location and remove:
First: To determine whether the RGA30-DV power supply connected, through the RGA30-DV digital
display can be observed to lose whether there is voltage output, such as digital display shows a voltage of
about 5V, indicating normal power supply, RGA30-DV work properly. Otherwise, check the power outlet
for good contact.
Second: If the digital stepper is adjustable, the input port of the amplifier has a voltage of 5V, you need to
check whether the fixing is steady between GRA10 and the cable.
Third: If the below two step were ok, please check the outdoor antenna S440 .You can, check the voltage
between axis of the cable connector and the outer shielding layer to make sure it’s 5V.If no voltage, the
circuit has fault, please contact our technical support. If 5V,the antenna S440 can be suspected.(In fact, this
case hasn’t appear in our engineering projects.
Contact us：+86-755-29644311 Email：Sales@gemsnav.com
9 Frequency Reference Table
Gllobal/Compass Navigation
Satellite Systems(GNSS/CNSS)
Frequency (MHz)
1164
1176
1188
1192 1207
1215
1219
1227
1239
1245
1252
1259
1266
1268 1278
1290
1535
1540
1545
1550
1558
1558
1561
1563
1575
1587
1592
1602
1609
1616
2491
GPS(USA) L1,L2,L2C,L5
Glonass(Russia) G1,G2
Galileo(Europian) E5+/-15
L1,E1,E2,E5(E5a,E5b),E6 E5a+/-12 E5b+/-12
Compass (Beidou 2,China) B3+/-10
Beidou 1
(China,Tx(LHCP)/Rx(RHCP)
IRNSS (India) L5+/-15 S+/-15
OmniStar
L
S
5
2
6/3
6
1
L6+/-5
L2/L2C+/-12
B2+/-10
G2+/-7
E6+/-12
L6+/-5
L5+/-12
G1+/-7
O+/-14---->
E2
L1+/-17
E1
B1+/-2
L1+/-12
L1+/-12
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