Gems RGA30-DV Series User manual

GEMS NAVIGATION Electronics Co.,Ltd. Add: F2,Building 6, RunDongSheng Industry Park, Baoan District, Shenzhen, China
Tel: [phone] Fax: [phone] Email: [e-mail]
Document Number 230817 Rev 006 2023-09-17 Page 1 / 7
RGA30-DV Serial
Rack-mounted Digital Step Adjustable Amplifier
Gain : 0～30dB, Digital display step adjustable .
Digital gain: LED digital display, clearly shows the current amplifier gain.
Serial command control.
Pass DC or block DC settings.
Frequency Range: 1150~1650MHz
Response For
GPS:L1,L2,L2C,L5;
Glonass:G1,G2;
Galileo:L1,E1,E2,E5(E5a,E5b),E6;
Beidou2:B1,B2,B3;
IRNSS:L1,L5;
OmniStar
WWW.GEMSNAV.COM

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Description
RGA30–DV Serial is rack-mounted single stage of the low noise amplifier, its technical
characteristics are as follows:
1. Digital display gain: LED digital display, clearly display the current amplifier gain;
2. Touch-tone gain adjustment: through the upper and lower key, you can adjust the gain when
needed;
3. Power control: toggle the power switch, easy control power supply state;
4. Serial command control.
5. Input port power setting.
6. Output ports:
RGA30-DV 1
RGA30-DV4 4
RGA30-DV8 8
Cover GPS, Galileo, and GLONASS, Beidou2 frequencies etc. The device features 0-30dB gain and
a noise figure less than 3dB. Since the product consumes less than 100mA, both the equipment and
the receiving antenna are vertically mounted.
Specifications
Parameter
Conditions
Min
Typ
Max
Units
Freq. Range
In- Output ports, 50Ω
1150
1650
MHz
In &Out Imped
In, all output ports
50
Ω
Gain
1207MHz
1227MHz
1561MHz
1575MHz
1609MHz
In- Output ports
-45dBm Input Level
0~30
dB
(0~30)-1.5
0~30
(0~30)+1.5
(0~30)-1.5
0~30
(0~30)+1.5
(0~30)-1.5
0~30
(0~30)+1.5
(0~30)-1
0~30
(0~30)+1
(0~30)-1.5
0~30
(0~30)+1.5
Input SWR
2.5:1
-
Output SWR
2.5:1
-
Noise Figure
3
dB
Gain Flatness
3
dB
Amp. Balance
0.5
dB
Phase Balance
1.0
deg
Group Delay
Flatness
1
ns
AC input
100
220
264
VAC
Current
Device only, Internal 12V DC
200
mA
Max RF output
power
RGA30-DV8
-25
0
dBm
RGA30-DV4
-23

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RGA30-DV
0
1dB press
RGA30-DV8
-4
dBm
RGA30-DV4
-29
dBm
RGA30-DV
-29
dBm
RF output ports
RGA30-DV
1
RGA30-DV4
4
RGA30-DV8
8
DC pass or DC block
setting
IN
√
Output port: RGA30-DV
√
Output ports: RGA30-DV4 and RGA30-DV8
x
Operating
Temperature
-40
85
℃
Functional description
Used to adjust system gain, 0-30 dB adjustable, you can control when needed. The input can be
set to energize 5V DC or not energized.
With AC220 power adapter, supply power to system and itself.
Gain Button: You can adjust the gain size , you can adjust the controller gain increase or decrease.
Digital Display: The display can be on the gain value, input voltage display.
DC Setting:
IN: Input port DC setting
OUT: Output port DC setting
Just only available for RGA30-DV;
RGA30-DV4/8 do not be setting the DC via the buttom.
PDC: Pass DC ;
BDC: Block DC;
To use the serial port:
Connect the device to the computer. Use a serial cable to connect the device's serial port to the
computer's serial port or USB port.
Open the serial debugging assistant software on your computer. Select the correct serial port in
the software settings. This will allow you to monitor the data received from the device, including the
timestamp information.
Configure the software to display the received data in hexadecimal format. This will make the
data more readable.

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Use the software to send commands or data in hexadecimal format to the connected device. You
can type the hexadecimal values directly or use the software's interface.
Click "Open" to establish the connection between the computer and the device through the serial
port.
Power on the device by plugging it into a power source and turning on the device's switch. This
will enable the device and allow you to start controlling the product's gain.
Please note that the exact steps may vary depending on the specific serial debugging assistant
software and device you are using. Always refer to the device's documentation and the software's
user manual for detailed instructions on using the serial port.
Serial Port Instructions
Gain
Instruction
Gain
Instruction
30dB
10 02 D0 1E 10 03 30 31
14dB
10 02 D0 0E 10 03 46 31
29dB
10 02 D0 1D 10 03 30 30
13dB
10 02 D0 0D 10 03 46 30
28dB
10 02 D0 1C 10 03 46 46
12dB
10 02 D0 0C 10 03 45 46
27dB
10 02 D0 1B 10 03 46 45
11dB
110 02 D0 0B 10 03 45 45
26dB
10 02 D0 1A 10 03 46 44
10dB
10 02 D0 0A 10 03 45 44
25dB
10 02 D0 19 10 03 46 43
9dB
10 02 D0 09 10 03 45 43
24dB
10 02 D0 18 10 03 46 42
8dB
10 02 D0 08 10 03 45 42
23dB
10 02 D0 17 10 03 46 41
7dB
10 02 D0 07 10 03 45 41
22dB
10 02 D0 16 10 03 46 39
6dB
10 02 D0 06 10 03 45 39
21dB
10 02 D0 15 10 03 46 38
5dB
10 02 D0 05 10 03 45 38
20dB
10 02 D0 14 10 03 46 37
4dB
10 02 D0 04 10 03 45 37
19dB
10 02 D0 13 10 03 46 36
3dB
10 02 D0 03 10 03 45 36
18dB
10 02 D0 12 10 03 46 35
2dB
10 02 D0 02 10 03 45 35
17dB
10 02 D0 11 10 03 46 34
1dB
10 02 D0 01 10 03 45 34
16dB
10 02 D0 10 10 10 03 30 33
0dB
10 02 D0 00 10 03 45 33
15dB
10 02 D0 0F 10 03 46 32

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Performance Data
Gain :0dB
Gain :10dB

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Gain :20dB
Order Informations And Available Options
RGA30-DV8 -SF-BO
Please contact us for more configurations and application supports. Email: [e-mail].
Output port numbers
Standard blank: 1 port
4: 4 ports
8: 8 ports
Connectors:
Blank (Standard)-N Female
SF-SMA Female
TF-TNC Male
BF-BNC Female
PDC or BDC Options for output ports
Blank (Standard)- Setting via button on panel
BO- Block DC output ports
PO- pass DC output ports

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Mechanical
Frequency reference table