1. Manuals
  2. Brands
  3. LP Technologies Manuals
  4. Measuring Instruments
  5. LPT-3000
  6. User manual

LP Technologies LPT-3000 User Manual

Remote
Hide thumbs Also See for LPT-3000:
Table of Contents

Advertisement

Quick Links

See also: User Manual
LPT-3000 Remote User's Guide
LPT-3000 Remote User's Guide
1
LP Technologies Tech Support
E-mail support@lptech.com, or Call
316-831-9696 Ext 0

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LPT-3000 and is the answer not in the manual?

Questions and answers

Related Manuals for LP Technologies LPT-3000

Summary of Contents for LP Technologies LPT-3000

  • Page 1 LPT-3000 Remote User’s Guide LPT-3000 Remote User’s Guide LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 2: Table Of Contents

    LPT-3000 Remote User’s Guide Table of Contents Chapter 1. Product Specifications ____________________________________________________________ 1. Product Specifications ________________________________________________________________ Chapter 2. Preparation for Use ______________________________________________________________ 1. Initial Inspection ____________________________________________________________________ 2. Requirements for Power______________________________________________________________ 3. Fuse Check _________________________________________________________________________ 4. Power Cable ________________________________________________________________________ 5. Environmental Conditions _____________________________________________________________ 6.
  • Page 3 LPT-3000 Remote User’s Guide 4. Use of the Pre Amplifier ____________________________________________________________ 5. Measurement of Shoulder Attenuation ________________________________________________ LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...
  • Page 4 Chapter LPT-3000 Remote User’s Guide Specifications LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 5: Chapter 1. Product Specifications

    LPT-3000 Remote User’s Guide 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)
  • Page 6 LPT-3000 Remote User’s Guide 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...
  • Page 7 LPT-3000 Remote User’s Guide - 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) ×...
  • Page 8 Chapter LPT-3000 Remote User’s Guide Preparation for Use LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 9: Chapter 2. Preparation For Use

    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.

  • Page 10: Fuse Check

    LPT-3000 Remote User’s Guide 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.
  • Page 11 LPT-3000 Remote User’s Guide involving severe vibration, high moisture, direct sun rays, or areas where the source voltage changes constantly. To prevent short-circuits due to condensation make sure the spectrum analyzer is WARNING! fully dry before using it in normal conditions, after storing, or when using it in low temperature environments for long periods of time.
  • Page 12 Chapter LPT-3000 Remote User’s Guide Starting LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 13: Chapter 3. Starting

    LPT-3000 Remote User’s Guide Chapter 3. Starting 1. Front Panel [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.
  • Page 14 LPT-3000 Remote User’s Guide 2. Rear Panel [Figure 3-2] Overview of the Rear Panel 1. ① RF 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.
  • Page 15 LPT-3000 Remote User’s Guide 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.
  • Page 16 LPT-3000 Remote User’s Guide 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...

  • Page 17: Measurement Methods

    LPT-3000 Remote User’s Guide 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.
  • Page 18 LPT-3000 Remote User’s Guide 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.
  • Page 19 LPT-3000 Remote User’s Guide horizontally. [Figure 3-4] Relationship between Frequency and Amplitude LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...
  • Page 20 Chapter LPT-3000 Remote User’s Guide Program installation and Startup LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 21: Chapter 4. Program Installation And Start-Up

    LPT-3000 Remote User’s Guide Chapter 4. Program Installation and Start-up 1. Ethernet Graphic User Interface (Remote TCP) Program Installation The Remote TCP software can be installed directly from CD included, or can be downloaded from our website using the link provided to you.
  • Page 22 LPT-3000 Remote User’s Guide Step 3: Continue with the installation process Step 4: Click “Next” to continue with the installation process LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...
  • Page 23 LPT-3000 Remote User’s Guide Step 5: Click “Finish” to complete the installation process LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 24: Program Execution

    LPT-3000 Remote User’s Guide 2. Program execution To run the Remote TCP software, click on Start > Program > Remote TCP_V18 and double click the icon. 3. IP Connection Setup By default, IP address 192.168.1.244 and port number 5000 are already filled in. Please click “Connect”...
  • Page 25 Chapter LPT-3000 Remote User’s Guide Interface LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 26: Chapter 5. Interface

    LPT-3000 Remote User’s Guide Chapter 5. Interface 1. TCP/IP Connection with an External Control Device Communication is possible by connecting the RJ-45 connector on the rear panel of the analyzer to the RJ-45 connector of your computer by using a LAN cable.
  • Page 27 LPT-3000 Remote User’s Guide Used Used [Table 5-3] Cross-Over Cable (Unshielded-twisted-pair (UTP) cable with RJ-45 connectors) [Figure 5-2] Cross-Over Patch Cable Wiring (cross-over end) LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 28: How To Change Ip Address, Subnet Mask, Gateway

    LPT-3000 Remote User’s Guide 2. How to change IP Address, Subnet Mask, Gateway Ethernet A. Using Client3 Application Please follow the instructions listed below very carefully. 1. Download the Client at www.lptech.com/Client3.zip 2. Run the application Client3.exe 3. Click “Server Connect”...
  • Page 29 LPT-3000 Remote User’s Guide 2. RS232 / Hyper Terminal 1. Connection Set Up To communicate with the LP Technologies spectrum analyzer using Hyper-Terminal, please set up a new connection with the following parameters: ■ Bits per Seconds: 115200 ■ Data Bits: 8 ■...
  • Page 30 LPT-3000 Remote User’s Guide Step 2: Press the “#” Key (Shift 3) to initiate the communication. When ‘Spectrum analyzer Terminal Mode Start’ is displayed on the screen, the spectrum analyzer will be ready to receive commands and queries. Step 3: Enter the following command codes: :syst:comm:tcp:address XXX.XXX.XXX.XXX...
  • Page 31 LPT-3000 Remote User’s Guide Example: :syst:comm:tcp:address 192.168.1.9 :syst:comm:tcp:gateway 192.168.1.1 :syst:comm:tcp:netmask 255.255.255.0 Query syst:comm:tcp:address? :syst:comm:tcp:gateway? :syst:comm:tcp:netmask? 3. Remote Termination To end the session, send the command :REMOTE_END LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...
  • Page 32 Chapter LPT-3000 Remote User’s Guide Menu and Operations LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 33: Chapter 6. Menu And Operations

    LPT-3000 Remote User’s Guide Chapter 6. Menu and Operations 1. File Menu - Print Window Prints the screen displayed. - Save Window Image Saves e-mail ready screen shots in .jpg format. - Graph Color Change Changes background, grid and trace colors to Black and White colors.

  • Page 34: Function Menu

    LPT-3000 Remote User’s Guide 2. Function Menu - Comm Setup This function allows the user to connect to different units. - System Info Displays the serial number, installed firmware version and MAC address of unit. LP Technologies Tech Support E-mail support@lptech.com, or Call...

  • Page 35: State Setup

    LPT-3000 Remote User’s Guide - Change SW Name Users can use this function to rename the LPT-3000R 4 RF switch ports - Change Status Passwd Allows the user to change the Status password. Default password is 0000 3. State Setup - RBW This button is used to set RBW.

  • Page 36: Port Switch & Pre-Amp

    LPT-3000 Remote User’s Guide - Avg This button is used to turn on or off the average function. - Scale Allows the user to set scale value. Selections: 1dB, 2dB, 5dB, 10dB, and 20dB per vertical grid zone. - Sweep Time Allows the user set the Sweep manually or set it on Automatic mode.

  • Page 37: Keypad Setup

    LPT-3000 Remote User’s Guide 8. Keypad Setup - Center Frequency Setup Function This function is used to set the center frequency. The button is highlighted when activated and the top left hand corner of the screen displays the Center Frequency. The values can be entered or changed using the numeric key pad and as well as the up/ down button.

  • Page 38: Special Functions

    LPT-3000 Remote User’s Guide 9. Special Functions - Preset (Reset) This button resets all settings to factory default. For status of preset setup, refer to the table below for factory preset conditions. Amplitude Unit Display and Grid Display Attenuation 30 dB Center Frequency 1.5GHz...
  • Page 39 LPT-3000 Remote User’s Guide only for Mark1. - Ref Off/On This button is used to turn ON or OFF internal 80 MHz standard signal. When Ref is ON, the LPT-3000R will not display any RF input signal connected to it. This function is used mainly for unit testing purposes.

  • Page 40: Marker Menu

    LPT-3000 Remote User’s Guide 10. Marker Menu -Marker 1-4 The Marker function allows the user to select any points on the trace and display frequency and level data in real time. The LPT-3000R has a total of 4 markers. Marker 1, Marker 2, Marker 3, and Marker 4 can be displayed simultaneously.

  • Page 41: Firmware Update

    LPT-3000 Remote User’s Guide 12. Firmware Update Process Step 1 Reboot the unit by powering it down, waiting ten seconds, and powering it back on. The switch for this is on the rear of the unit near the AC power cord entry.

  • Page 42: Chapter 7. Measurement Applications

    Chapter LPT-3000 Remote User’s Guide Measurement Applications LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 43: Utilization Of Delta Marker

    LPT-3000 Remote User’s Guide Chapter 7. Measurement guide We will now review a few experiments that will allow an operator to use some of the functions the LPT- 3000R Spectrum Analyzer discussed above while taking simple measurements and learning how to use the unit.

  • Page 44: Utilization Of Rbw

    LPT-3000 Remote User’s Guide [Figure 7-1] Delta Marker Function 2. Utilization of RBW ; Distinction of a Small Signal To distinguish between two signals of similar frequencies, it is required to consider configuration characteristics and 3dB bandwidth of the analyzer IF (RBW) filter. The configuration characteristics of the filter are defined by selectivity, the ratio of the 3dB and the 60dB bandwidths.
  • Page 45 LPT-3000 Remote User’s Guide Synthesized Signal Generator Synthesized Signal Generator FREQUENCY RF LEVEL FREQUENCY RF LEVEL RF Out RF Out Input Combiner [Figure 7-2] Setup for Input of Two Signals ⒝ Set the Center Frequency and the Span Frequency of the LPT-3000R communication program to 100MHz, and 1MHz/ VBW 100Hz respectively.
  • Page 46 LPT-3000 Remote User’s Guide [Figure 7-3] Signal Resolution where RBW is 10kHz [Figure 7-4] Signal Resolution where RBW is 30kHz LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

  • Page 47: Measurement Of A Small Signal

    LPT-3000 Remote User’s Guide [Figure 7-5] Signal Resolution where RBW is 100kHz 3. Measurement of a Small Signal The small signal measuring capacity of the LPT-3000R is restricted by its internally generated noise level. Small signals with low power level may become blocked by the LPT-3000R noise level. For sensitivity of small signal measurement, equipment setup is the most important element.
  • Page 48 LPT-3000 Remote User’s Guide - Example of Use (Input Terminal Attenuator Setup) In case the signal is very close to the noise level, reduce the input terminal attenuator to 0dB and adjust the reference level to maximize the signal output.
  • Page 49 LPT-3000 Remote User’s Guide [Figure 7-7] 10dB Attenuation Rate Setup - Example of Use (RBW Selection) Small signals can be measured when lowering the noise level of the LPT-3000R by reducing RBW. ⒜ Set the frequency of the signal generator to 100MHz and the amplitude to -90dBm.
  • Page 50 LPT-3000 Remote User’s Guide [Figure 7-8] RBW 10kHz Signal [Figure 7-9] RBW 3kHz Signal LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...
  • Page 51 LPT-3000 Remote User’s Guide - Example of Use (VBW Reduction) Setting the video filter to a small value is useful for measuring noise or a very small signal. The video filter passes through a low frequency zone. In case it is difficult to visually distinguish between a signal near noise level and noise, irregular random noise can be reduced and the signal can be clearly visible by making the video filter smaller.
  • Page 52 LPT-3000 Remote User’s Guide [Figure 7-11] VBW 3kHz Signal [Figure 7-12] VBW 1kHz Signal LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...
  • Page 53 LPT-3000 Remote User’s Guide [Figure 7-13] VBW 300Hz Signal 4. Use of a Pre Amplifier The small signal measuring capacity of the LPT-3000R can be improved by using the pre-amplifier in addition to the method described in Section 7-4. ⒜ Set the frequency of the signal generator to 100 MHz and the amplitude to -80 dBm.
  • Page 54 LPT-3000 Remote User’s Guide [Figure 7-14] Pre Amplifier Turned Off ⒠ Set the pre-amplifier to ON. [Figure 7-15] Pre Amplifier Turned On ⒡ Set the reference level to -60dBm. LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...
  • Page 55 LPT-3000 Remote User’s Guide The Noise level is lowered by approximately 30dB. [Figure 7-16] Pre Amplifier Turned On 5. Measurement of Shoulder Attenuation The LPT-3000R is equipped with a Shoulder Attenuation Measuring function to satisfy the 8VSB/ATSC standard. LP Technologies Tech Support E-mail support@lptech.com, or Call...
  • Page 56 LPT-3000 Remote User’s Guide [Figure 7-17] Shoulder Attenuation Measurement LP Technologies Tech Support E-mail support@lptech.com, or Call 316-831-9696 Ext 0...

Table of Contents