LP Technologies LPT-3000 User manual

LPT-3000 Remote User’s Guide
1
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LPT-3000 Remote User’s Guide

LPT-3000 Remote User’s Guide
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Table of Contents
Chapter 1. Product Specifications ____________________________________________________________
4
1. Product Specifications ________________________________________________________________
5
Chapter 2. Preparation for Use ______________________________________________________________
8
1. Initial Inspection ____________________________________________________________________
9
2. Requirements for Power______________________________________________________________
9
3. Fuse Check _________________________________________________________________________
10
4. Power Cable ________________________________________________________________________
10
5. Environmental Conditions _____________________________________________________________
10
6. Turning on Power ____________________________________________________________________
11
Chapter 3. Starting________________________________________________________________________
12
1. Function of the Front Panel ____________________________________________________________
13
2. Function of the Rear Panel ____________________________________________________________
14
3. Explanation of the Display ____________________________________________________________
15
4. Measurement Methods ______________________________________________________________
17
Chapter 4. Program Installation and Start-up ___________________________________________________
20
1. Software Installation _________________________________________________________________
21
2. Program Execution __________________________________________________________________
24
3. IP Connection Setup __________________________________________________________________
25
Chapter 5. Interface _______________________________________________________________________
26
1. TCP/IP Connection with an External Control Device____________________________________
26
2. How to change IP Address, Subnet Mask, Gateway ____________________________________
28
Chapter 6. Menu and Operations ____________________________________________________________
32
1. File Menu ______________________________________________________________________
33
2. Function Menu______________________________________________________________________
34
3. State Setup ________________________________________________________________________
35
4. Port Switch & Pre-Amp _______________________________________________________________
36
5. Memory Setup _____________________________________________________________________
40
6. Key Pad Set Up _____________________________________________________________________
37
7. Special Functions __________________________________________________________________
38
8. Marker Menu _______________________________________________________________
40
9. Firmware Update ___________________________________________________________________
41
Chapter 7. Measurement Applications_________________________________________________________
42
1. Utilization of Delta Marker __________________________________________________________
43
2. Utilization of RBW _________________________________________________________________
44
3. Measurement of a Small Signal ______________________________________________________
47

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4. Use of the Pre Amplifier ____________________________________________________________
53
5. Measurement of Shoulder Attenuation ________________________________________________
55

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Chapter 1
Specifications

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Chapter 1. Specifications
1. Product Specifications
- Frequency
Range : 9 kHz to 3.0 GHz
Resolution : minimum 1 Hz
Span Range : 100 Hz / div to 300 MHz / div
Selection of 1,2,5 steps (automatic), ZERO Span,
FULL Span (9 kHz to 3.0 GHz)
Frequency Selection : Start, Stop, Center, Span set-up
Span Accuracy : ±3 % of the Indicated Span Width
Readout Accuracy : ≤±([Indicated frequency × Reference frequency accuracy] + [Span × Span accuracy]
+ 50% of RBW)
Phase Noise : ≤−90 dBc/Hz @10 kHz offset
- Amplitude
Range : +20 dBm ~ −105 dBm ; +20 dBm ~ -135 dBm(Pre Amp On)
Avg. Noise Level (1 kHz RBW, 10 Hz VBW)
≤−105 dBm, ≤−135 dBm(Pre Amp On) : 150 kHz ~ 1 GHz ;
≤−100 dBm, ≤−130 dBm(Pre Amp On) : 1 GHz ~ 2.4 GHz, 50 kHz ~ 150 kHz
≤−95 dBm, ≤−120 dBm(Pre Amp On) : 2.4 GHz ~ 3 GHz ;
Amplitude Unit : dBm, dBmV, dBuV
Display Scale Linearity
≤±1.5 dB / 70 dB (10 dB / div), ≤±1.5 dB / 40 dB (5 dB / div)
≤±0.5 dB / 8 dB (1 dB / div), ≤±0.5 dB / 16 dB (2 dB / div)
Frequency Response (0 dB attenuation) : −3.5 dB ~ 1.5 dB (100 kHz ~ 10 MHz)
±1.5 dB (10 MHz ~ 3 GHz)
Reference Level
Range : +20 dBm ~ −90 dBm

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Resolution : 0.1 dB step
Accuracy : ±1.5 dB
Second Harmonic Distortion : ≤−60 dBc, −40 dBm input
Intermodulation Distortion : ≤−70 dBc, −40 dBm input
Residual Spurious : ≤−85 dBm (Input terminated, 0 dB attenuation)
Other Input Spurious : ≤−60 dBc, −30 dBm input
Resolution Bandwidth
Selections : 1 kHz, 3 kHz, 10 kHz, 30 kHz, 100 kHz, 300 kHz, 1 MHz, 3 MHz,
9 kHz, 120 kHz
Accuracy : ±20 %
Selectivity : 60 dB / 3 dB ratio < 15 : 1
60 dB / 6 dB ratio < 12 : 1 (9 kHz, 120 kHz)
Switching Error : ≤±1.0 dB (1 kHz Reference RBW)
Video Bandwidth : 10 Hz to 3 MHz in 1-3-10 step
- Sweep
Time : 100 ms to 1000 sec, 40 ms to 1000 sec (zero span)
Accuracy : ≤±20 %
- Storage
Setup Storage : 20
- Screen Display
Type : PC or Notebook
Display Resolution : 640 (H) × 480 (V) active display area
Marker Mode : Peak search, Delta marker, Peak Hold, Min Hold
- Input
RF Input Connector : N-type Female, 50 Ω nominal
VSWR : 150 kHz to 3.0 GHz, VSWR < 1.5 : 1 (with 0 dBm Ref Level)
Maximum Input Level : 0 Vdc, +20 dBm

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- Standard Frequency (10 MHz, Ref.)
Temperature Stability : ±0.5 ppm
Aging : ±0.5 ppm / Year
- Interface
RS-232C : Null Modem Remote Control
Ethernet 10-Base-T Ethernet : supports Internet remote control
- General Specifications
Size : 436 (width) × 88 (height) × 485 (length) mm
Weight : 10 kg
Warming-up Time : 20 minutes for precise measurement
Power
Supply Electrical Power : 100-240 VAC at 50 / 60Hz
Consumption Power : 80 watts maximum (without a built in option)
Operating Temperature : 0 ℃to 40 ℃
Temperature for Storage : −20 ℃to 70 ℃

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Chapter 2
Preparation for Use

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Chapter 2. Preparation for Use
1. Initial Inspection
Please inspect the box contents and make sure all listed items are included. Keep the shipping box and
all packing materials until the inspection of the LPT Spectrum Analyzer is complete.
Table 2-1 (below) shows all accessories offered with the LPT-3000R Spectrum Analyzer. Please contact
LP Technologies Customer Support for any damaged parts, missing items, or any other issue that you
may need assistance with.
To clean the surface of the unit, please use a wet/dry cloth. Do not clean the inside of the case.
Accessories
Note:
Operation Manual CD
Included in the package
Power Cable (AC Power Cable 3 Holes)
Included in the package
[Table 2-1] Accessories offered with the LPT 3000R Spectrum Analyzer
2. Power Requirements
The LPT 3000R does not need any additional external devices; use only the power cord provided. For
more information, see Table 2-2 below.
Source Voltage
100 - 120 VAC ( 50 - 60 Hz )
Source Voltage
220 - 240 VAC ( 50 - 60 Hz )
In order to prevent electrical shock, please unplug the power cord from the main
power supply on the back of the spectrum analyzer before cleaning.
WARNING!

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Power Consumption
Less than 80W
[Table 2-2] Requirements for AC Power
3. Fuse Check
A spare fuse should be included with the LPT 3000R. The holder is located in the upper part of the
power switch on the back of the device. The spare is contained behind the fuse currently in use. If
there is no longer a spare fuse in this location, a replacement should be acquired that matches the
following properties. (250 VAC, 3.15 A type T 5 × 20 mm).
4. Power Cable
In accordance with International Safety Standards, the LPT 3000R’s power cable uses 3 lines
including ”Ground”. When connected to a power outlet, the cable grounds the cabinet of the unit.
5.
Environmental Conditions
The LPT-3000R Spectrum Analyzer will operate normally between the temperatures of 0 ℃and
40 ℃. However, for best performance, it is important to avoid exposing the unit to conditions
To reduce the risk of fire, please use only the recommended fuses. Using a fuse with a different
power rating may cause serious damage to the spectrum analyzer.
WARNING!
Please use a grounded power cable with three lines, or connect the spectrum
analyzer to a protective “Ground” line. Operating the unit without following these
requirements may put you at risk of an electric shock. It is also important to check
the source voltage, because if it exceeds the recommended value, the spectrum
analyzer may be permanently damaged or catch fire.
WARNING!

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involving severe vibration, high moisture, direct sun rays, or areas where the source voltage
changes constantly.
6. Turning on
Power
Please connect the power cord to the back panel of the LPT-3000R Spectrum Analyzer, before use, and
then press the “On” button. Allow the unit to warm up for approximately 20 minutes before measuring.
To prevent short-circuits due to condensation make sure the spectrum analyzer is
fully dry before using it in normal conditions, after storing, or when using it in low
temperature environments for long periods of time.
In order to prevent the inner temperature of the unit from rising, there is a
cooling fan on the rear panel. Please leave at least 10 cm between the back panel
and walls or other nearby devices in order to allow proper air circulation.
WARNING!
WARNING!

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Chapter 3
Starting

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Chapter 3. Starting
1. Front Panel
13 2 34
[Figure 3-1] Overview of the Front Panel
1. 20x2 character LCD for frequency and span display.
2. USB interface for system update and screenshot memory using flash drive.
3. Rack mount for convenient storage.
4. Air passages on the front panel for proper ventilation.
After the LPT-3000R Spectrum Analyzer is turned on, “INITIALIZE…” is displayed on the LCD in order to
indicate that setup is in progress. When normal operation begins, the default Frequency and Span set in
the equipment are displayed on the LCD.
The USB port is designed to administer firmware installation and upgrades using a USB flash memory
stick.

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2. Rear Panel
1
2 3 4 5 6
[Figure 3-2] Overview of the Rear Panel
1. ①RF IN-1, IN-2, IN-3, and IN-4 Port
The LPT-3000R has a built in 4:1 switching option. Therefore this model can connect up to 4
signals on its back panel. Please see the inputs IN-1, IN-2, IN-3 and IN-4 as shown in the above
figure.
2. RF IN/OUT Port
For an RF signal entering the RF IN-1 port, the RF IN/OUT port uses the internal RF power
divider and produces the output. In general, the output is produced with the loss of
approximately -6dB. General signals from the antenna port are measured as they enter RF IN-1
and are produced as outputs through the RF IN/OUT port.
3. Ethernet interface
Communication is established between the PC and the LPT-3000R Spectrum Analyzer through
the RJ-45 connector using Remote TCP application software.

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4. RS-232C Connector
Communication is established between the PC and the LPT-3000R Spectrum Analyzer through
the RS-232C connector using SA_Comm_RS_R application software.
5. The Ventilation fan is installed to discharge heat generated inside the equipment.
6. The AC Power Switch is used to turn ON and OFF the equipment power.
3. Display
This is a screen shot of the communication program display. A description of each item listed is
provided below.
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
⑫
⑬
⑭
⑮
[Figure 3-3] Screen Display

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1. Program title and version are displayed.
2. Menu
Comm Setup: Allows setting of a Comm port
Print Window: Allows you to print the screen displayed
Save Window Image: To save the displayed screen as an image file
Graph Color Change: Lets you invert colors in the grid area where the spectrum is displayed
Firmware Update: Updates the firmware for the LPT-3000R
System Info: Displays the serial number of the unit and the version of the LPT-3000R installed
Switch name change: Allows you to rename the RF switches/ports
3. Displays the active function block.
4. Level per grid is displayed.
5. Starting frequency is displayed.
6. Center frequency is displayed.
7. Stopping frequency is displayed.
8. Currently set values are displayed.
Span, frequency step, RBW, VBW, attenuation, and screen scale are displayed.
9. Allows the operator to set up the following parameters: RBW, VBW, attenuation, screen scale,
as well as the average function.
10. Allows the operator to activate the Pre Amp option module.

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11. Allows the operator to turn ON the Marker function.
12. Allows the operator to set frequency channel.
13. Allows the operator to view the memory.
14. Allows the operator to input information using the keypad.
15. Allows to operator to activate the following functions: Preset, Peak Search, Max and Min Hold,
Reference ON/OFF, Align, Auto-set, Channel Power, DVT Mask, and Status Hold.
4. Measurement Methods
A 80MHz standard signal is generated inside the equipment and is used as a test signal.
1. Turn ON the AC switch button on the rear panel of the LPT-3000R Spectrum Analyzer. After the
power authorization and the initialization processes are completed, the LCD will display the
Center Frequency and the Span.
2. Run the Remote TCP program.
-In case of SA_Comm_RS_R (RS232 connection), select the Comm port connected to your
PC.
-In case of Remote TCP (Ethernet connection), select an IP address corresponding to the
unit. The default IP address is 192.168.1.244 if it has not been changed manually.
3. Press Ref OFF button to turn ON the internal standard signal of 80MHz. Notice that the button
is now highlighted and the caption changes to Ref ON.

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4. Set the Frequency.
Press Cent button on the keypad to activate Center Frequency. The button is now highlighted
and the top left hand corner of the screen displays Center Frequency. The values can be
entered or changed using the numeric key pad and as well as the up/ down button. Using
numeric keypad, set the Center Frequency to 80MHz.
5. Set the Span.
Press the Span button on the keypad to activate Span frequency.
The button is now highlighted and the top left hand corner of the screen displays Span
Frequency. Using numeric keypad, set the Span Frequency to 50kHz.
6. Set the Amplitude.
Adjust Amplitude level on the screen if the maximum value of signal is not displayed. Press Ref
button to activate Amplitude level function. Ref button is now highlighted and the top left hand
corner of the screen displays the Reference level. The highest bar on the grid and is set at 0.0
dBm. When the value of reference level is changed, the Amplitude level of the highest grid line
also changes.
7. Set the Marker.
Marker function measures the Frequency and Amplitude of a signal. Frequency and amplitude
of a signal can be found by placing x-shaped marker on the maximum value of the signal. Press
the Mark button to activate marker. When using the Pk Srch button, marker No. 1 will
automatically be set at the maximum (highest point of trace). The result of the Frequency and
Amplitude reading of the marker will be displayed in marker window.
Figure 3-4 (below) illustrates the relationship between the Center Frequency and the Reference level.
Changing the Center Frequency will result in changing the signal position of the signal on the horizontal
line on display screen. Changing the Reference level will result in changing the vertical position of the
Signal on the display screen.
When the Span frequency is increased, the range of the frequency shown on the display also increases

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horizontally.
[Figure 3-4] Relationship between Frequency and Amplitude

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Chapter 4
Program installation and Startup