Atten Gratten GA1483 User manual

Preface
The content in the manual is provided according to the current situation and it could
be changed without prior notice in future.
The company provides no warranty of any kind to this manual and assumes no
liability or responsibility for any mistakes possibly contained in the manual or any
occasional or subsequent loss caused by using this manual.
Copyright
©2012 The company All rights reserved.
Under the international copyright ordinance, any entity and individual cannot copy or
spread the content of this manual (including electronic manuals) as well as translat
e the content into other languages without the authorization of the company.
The products of the company are under protection of the Pe
ople's Republic of China Patent that has been approved or i
spending.
The company reserves the right to change the specification
and price.
Any part of this manual can not be printed, copied or chang
ed without our prior written permission.

Security identifier agreement
The following security identifiers may appear in the manual. Before operating the
instrument, please familiarize yourself with the identifiers and the meanings of the
identifiers:
WARNING: It represents that dangers may occur. It notices the user to pay
attention to certain operation process, practice or similar aspects.
Casualties could be caused if the user does not operate rightly or
obey the rules. Do not perform further operation before completely
understanding or satisfying the conditions pointed by the warning
identifier.
CAUTION: It represents that dangers may occur. It notices the user to pay
attention to certain operation processes, practice or similar aspects.
Damage of the product or data loss could be caused if the user does
not operate rightly or obey the rules. Do not perform further operation
before completely understanding or satisfying the condition pointed
by the warning identifier.
Note: It represents information that the user especially should pay attention
to. It provides operation information or additional information that the
user should pay attention to.

Brief introduction of signal generator
The signal generator is a desk type electronic instrument. It has a keyboard
distribution that is easy to operate and a 7.0-inch TFT color liquid crystal display
screen with high definition; a display interface comprises proper settings and prompt
messages; USB, LAN and GPIB communication interfaces are provided; and a
virtual terminal can be used for display, control and remote network access. The
signal generator can be widely applied to various fields such as science of education,
enterprise research and development and industrial production, etc.
Main performance characteristics:
Excellent phase noise: <-115dBc/Hz@20kHz
Large dynamic power output: -127dBm ~+13dBm (available from
-136dBm)
Rich Modulation mode: AM, FM, ΦM in diameter and pulse
modulation
Multiple RF scan output combining frequency and amplitude.
Low frequency signal output, namely sine, triangle, square, sawtooth
wave,etc.

Contents
Document Overview
1 Quick Start …………………………………….……..……………..…….…..1
1-1 Preparation before Use…………………………………….………...…………1
1-2 Characteristics of front panel…………………………………………. ………5
1-3 LCD user interface……………………………………………………...………8
1-4 Characteristics of back panel………………..……………………...…...……11
1-5 Keys and menu operation…………………………………………..…..……13
1-6 Parameter input ……………………….…………………………..…….……16
1-7 On-line help system……………………………………………………………..18
2 Basic Operation ……………………………………………………….……...19
2-1 Use table editor………………………………….………………..…………..…19
2-2 Configure RF output …………..…………………………………..……………23
3 Analog Modulation Operation………….…...…………………...……33
3-1 Configure analog modulation……………………………………………..……33
3-2 Configure AM…………………………………………………………………….34
3-3 Configure FM………………………………….…………………………………36
3-4 Configure ΦM……………………………………...……………….……………38
3-5 Configure pulse modulation………………….…………………………...……40
3-6 Configure LF output……………………………………………………….....…42
4 Remote Control…………………………………………..……....……………45

5 Menu Mapping Image………………………………..……………..………47
5-1 AM…………………………….…………..…………………...…………………47
5-2 AMPT…………...……………………………………………...…...…………48
5-3 FM……………………………….……………………...………...……………49
5-4 FREQ……………..……………………………………………………...………50
5-5 LF…………..………………………………………………….....……………50
5-6 PULSE………………………………………………………………...…………51
5-7 RECALL………………………………………………………….……………...51
5-8 SAVE ……………….…………………………………….………………..…52
5-9 SWEEP……………….………………………………………………….………53
5-10 SYSTEM……………………………………………………………...………54
6 Performance Index…………………………………………..………………55
7 Appendix…………………………………………………………………..………59
Appendix A: accessories…………………………………………….59

Document Summary
The manual comprises the following contents:
1. Quick Start
The chapter introduces front and back panels, user interface, menu operation
method, parameter input way and first-use announcements of the signal generator.
2. Basic Operation
The chapter introduces the application method of radio-frequency signals of the
signal generator..
3. Analog Modulation Operation
The chapter introduces the analog modulation function and application method of
the signal generator by examples.
4. Remote Control
The chapter introduces a method for remotely controlling the signal generator.
5. Menu Mapping Image
The chapter introduces the menu mapping images corresponding to all function keys
of the front panel of the signal generator according to alphabetic sequence.

6. Performance Index
The chapter lists the technical indexes and general technical specifications of the
signal generator.
7. Appendix
The chapter provides accessory details of the signal generator.
Related user’s documents of the product:
The user’s documents of the product include: user’s manual and programming
manual.

1
Signal Generator
Quick Start
The chapter introduces the front and rear panels, the
user interface and first-use announcements of the
signal generator.
The contents of the chapter are as follows:
Preparation before use
Characteristics of the front panel
Characteristics of the rear panel
Menu operation
Parameter input
On-line help system

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GA1484 Signal Generator
4.0 GHz Signal Generator
Signal Generator
1 Quick Start
1-1 Preparation before use
1-1-1 Understand safety matters in use
Make sure to know the following safety attentions before use so as to avoid
personal injury and equipment damage.
Use right power cord
Only use special power cord recognized by residential country of the
product.
Ground the product.
The product is grounded by a protective ground wire of a power cable.
In order to prevent electric shock, please make sure that the ground
terminal and the power cable of the product is reliably connected with
the protective ground wire before connecting any input or output
terminal of the product.
Check the rated values of all terminals
In order to prevent a fire and impact of overlarge current, please check
all rated values and mark descriptions on the product, and please read
the product manual before connecting product so as to know detailed
information of the rated values.
Use suitable overvoltage protection
Make sure that no overvoltage (such as voltage caused by thunderbolt)
reaches the product, otherwise, the operator may have a risk of
suffering electric shock.
Please do not operate the product when the cover is open
Please do not operate the product when the chassis of the instrument is
open.

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Use suitable fuse wire
Only use fuse wire with specified specification of the product.
Prevent exposure of circuit
Please do not contact exposed joints and elements after the power is
on.
Please do not operate when the product is suspected to have fault
Please contact the servicemen authorized by the company if you
suspect any failure of the product. Any maintenance, adjustment or
component replacement should be executed by servicemen authorized
by the company .
Keep proper ventilation
Bad ventilation will cause temperature rise of the instrument and then
will cause damage to the instrument. Keep good ventilation during use
and periodically check the vents and fans.
Please do not operate in wet environment
In order to prevent short circuit of the internal circuit of the instrument or
danger of electric shock, please do not operate the instrument in wet
environment.
Please do not operate in flammable and combustible environment
In order to prevent instrument damage or personal injury, please do not
operate in flammable and combustible environment.
Please keep the surface of the product clean and dry
In order to prevent dust and moisture in air from influencing the
performance of the instrument, please keep the surface of the product
clean and dry.
Antistatic protection
Electrostatic will cause damage to the instrument, so please do the test
in an antistatic region as far as possible. Temporarily ground the
internal and external conductors of the instrument before the cable is

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GA1484 Signal Generator
4.0 GHz Signal Generator
Signal Generator
connected to the instrument so as to release the electrostatic.
Know the application condition of the technical index of the signal
generator
In order to ensure that all the performances of the instrument reach the
standard, please use the instrument at specified condition.
Pay attention to transportation safety
In order to prevent the instrument from sliding down during
transportation to cause damages to components of keys, knobs or
interfaces and the like on the instrument panel, please pay attention to
transportation safety.
1-1-2 Ordinary examination
Check the signal generator before use according to the following steps:
1. Check whether there is damage caused by transportation:
Please keep the damaged freight packages or vibration-proof materials until the
goods are completely checked and the instrument passes electrical property and
mechanical tests. The shipper and carrier are responsible for indemnity if the
damage of the instrument is caused by transportation. the company would not
provide any free maintenance or replacement.
2．Check the overall machine
If there is mechanical damage or loss or the instrument does not pass the
electrical property and mechanical tests, please contact your the company
agency.
3．Check random accessories
According to the randomly provided accessory details, please refer to the
chapter ‘‘Appendix A: optional components or accessories ’’ in the manual.
Please contact your the company agency if the goods in the package are
partially lost or damaged.

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1-1-3 Connect the power source
The signal generator can use an AC power source.
Please use the power cord provided in the accessories to connect the signal
generator to the AC power source. Related to the requirement on the AC power
voltage and frequency, please check the introduction in the chapter of
‘‘Characteristics of back panel’’.
Caution
In order to avoid electric shock, please make sure that the
instrument is grounded rightly.
1-1-4 Booting check
Turn on the main switch on the back panel, and then press a power key on the front
panel to run the signal generator. A booting picture will be displayed when the signal
generator is booted, and a default interface will appear on the screen after tens of
seconds. After initialization, the signal generator is in the normal working mode.

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GA1484 Signal Generator
4.0 GHz Signal Generator
Signal Generator
1-2 Characteristics of front panel
Chart 1 Front panel structure chart
Table 1 Description of front panel
Item
Description
No. Name
1LCD display screen
The LCD screen displays information related to the
current function. The information may include status
indicator, frequency and amplitude settings and error
information. The detailed information of the interface
is introduced in the next section.
2 Soft function key The soft function key triggers the function indicated
by a label displayed at the left of each key.
3 ESC key
Exit the currently selected function without changing
its value.
4 FREQ (Frequency) key
By pressing the key, the frequency function is
available. The user can set the frequency of the RF
signal or use the menu to configure the frequency
attributes, such as frequency multiplication,

6
frequency offset and reference frequency.
5 AMPT (Amplitude) key
By pressing the key, the amplitude function is
available. The user can set the output amplitude of
the RF signal or use the menu to configure the
amplitude attributes, such as power search and
electric level adjustment mode.
6 Function key region
The hard function keys access the soft function key
menu so that the user can configure list and step
sweep, LF output and various analog modulation
types.
7 Knob
Progressively increase or decrease the current
parameters according to certain stepping by rotating
the knob. The parameters are progressively
increased clockwise and decreased anticlockwise.
8Audio (LF) output
switch key Audio (LF) signal output on-off control key
9Audio (LF) output
interface The BNC joint is an audio signal output interface.
10 Modulation (MOD) main
switch key
Control the modulation main switch. The modulation
functions (amplitude modulation (AM), frequency
modulation (FM), pulse modulation (ΦM) and pulse
modulation) are available only when the modulation
main switch is at on status.
11 Radio-frequency signal
(RF) interface The N-type connector for RF signal output.
12 Radio-frequency signal
(RF) on-off key
The N type container is used for outputting RF
signals.
13 Save key
The hard function key accesses the soft function key
menu and can enable the user to save the data in a
file. As long as the instrument status is saved, all
frequency, amplitude and modulation settings can be
recalled by using the hard function key Recall.
14 Direction keys,
Upper and lower direction keys are used for

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GA1484 Signal Generator
4.0 GHz Signal Generator
Signal Generator
enter key
progressively increasing or decreasing the data
according to certain stepping, or moving the cursor
that selects afile or a parameter in an information
display region to the last line or the next line. Left and
right keys are used for moving the data in an input
box from a selected position to a high position or low
position. The enter key is used for inputting the
parameters according to default unit.
15 Recall key
The hard function key can restore any instrument
status saved in files previously.
16 Numeric keypad
The numeric keypad comprises numeric keys 0-9,
namely ten hard function keys in total, one decimal
point key, one symbol key and four unit keys. The
symbol keys are numerical value symbol and delete
reuse key.
17 Return key Return to the menu by using the hard function key.
18 Power standby key
Run the frequency spectrograph. Red backlight
represents that the instrument is at standby status
and green backlight represents that the instrument is
booted.
Attention: the standby key is not an
alternating-current power switch (for
disconnecting the equipment).
19 Local key
The hard function key is used for stopping remote
operation and returning to the front panel of the signal
generator for control.
20 Help key
Short description of all the hard function keys or soft
function keys can be checked by pressing this hard
function key.
21 Preset key
The hard function key is used for setting the signal
generator at a known status, adelivered status or a
user-defined status.

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1-3 LCD User interface
Chart 2 Interface structure chart
Table 2 User interface description
No. Name Description
1 Frequency region
The current frequency setting will be displayed in this
part of the display screen. When the frequency
reference is run by using frequency offset or
frequency multiplication, the value will be also
displayed in the display region in this area.
2Action function
region
The current action function will be displayed in this
region. For instance, if the frequency is the action
function, the current frequency setting will be

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GA1484 Signal Generator
4.0 GHz Signal Generator
Signal Generator
displayed in the region. If the current action function
has a related incremental value, the value will be also
displayed.
3 Amplitude region
The current output power electric level setting will be
displayed in this part of the display screen, and the
indicator will be also displayed in this region when
amplitude offset is used, amplitude reference mode
and external electric level adjustment mode are run.
4 Indicator
The indicator on the display screen displays the
function status of some signal generators and
indicates the error condition. The detailed status flag
is shown in format 3.
5Soft function key
label region
The label in the region defines the function of the soft
function key close to the right of the label, and the
soft function key label could be changed according to
the selected function.
6Message display
region
The region of the display screen is used for
displaying the status message related to the signal
generator, such as modulation status, sweep list and
file catalog, and the region may also enable you to
execute functions such as message management,
message input, file display or delete and the like.
7Error message
region
Brief error message will be reported in this region.
Only the latest messages is kept displayed when a
plurality of error messages appear.
Table 3 Status identifier description
Name Description
AM ON/OFF ”AM ON” is displayed only when amplitude modulation is run; and
the identifier is hidden when amplitude modulation is stopped.
ERR
The indicator will appear if an error message appears in an error

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queue.
FM ON/OFF
”FM ON” is displayed only when frequency modulation is run, and it
is hidden when frequency modulation is stopped.
LF ON/OFF
The identifier indicates that the low-frequency signal appears in an
LF OUT connector (LF ON) or the low-frequency signal does not
appear in the LF OUT connector (LF OFF). One status of the
identifier will be displayed on the display screen all the time.
MOD ON/OFF
The identifier shows that the RF carrier wave is modulated (MOD
ON) or the modulation is stopped (MOD OFF). One status of the
identifier will be displayed on the display screen all the time.
PM ON/OFF ”PM ON” is displayed only when phase modulation is run, and it is
hidden when phase modulation is stopped.
PULSE
ON/OFF
”PULSE ON” is displayed only when pulse modulation is run, and it
is hidden when pulse modulation is stopped.
RF ON/OFF
The identifier indicates that an RF signal appears in the RF
OUTPUT connector (RF ON) or RF does not appear in the RF
OUTPUT connector (RF OFF). One status of the identifier will be
displayed on the display screen all the time.

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GA1484 Signal Generator
4.0 GHz Signal Generator
Signal Generator
1-4 Characteristics of back panel
Chart 3 Back panel structure chart
Table 4 Back interface description
No. Interface Description
1
AC power
connector
(provided with
fuse wire box)
Connectable AC power source type:
AC: 100 V - 240 V, 47 Hz - 420 Hz
Specification of the fuse wire:
5×20mm, rated value: 1A, 250V
2 10MHz OUT
Reference clock output is implemented by connection
of a BNC cable.
3 10MHz IN Reference clock input is implemented by connection of
the BNC cable.
4 TRIGGER IN
An external trigger signal is input to a signal by the BNC
cable.
5 SWEEP OUT Output of scanning signals
6 PULSE IN BNC Connector accepts