Setting the Receive Gain | RF-Link Technology NL6000 specification

8.Set the deviation value as follows:

∙Select Deviation from the Diagnostics menu.

∙While watching the deviation gauge on the IFR, enter 1-Increase Deviation 0.25 dB or 2-Decrease Deviation 0.25 dB until the deviation gauge measures 2.5 kHz for a low data rate or 4 kHz for a high data rate.

∙Press Ctrl-Aor Ctrl-Bto save the balance and deviation values as the first or second reference point.

∙Press ESC to return to the Diagnostics menu.

∙Select None from the Diagnostics menu to stop the data transmission.

10.Repeat Steps 1-7 for the opposite edge.

Setting the Receive Gain

Use this procedure to set the receive packets at the best level for this modem.

1.From the terminal emulator, enter programming mode.

2.Enable the Receive Diagnostic Mode as follows:

∙Select Diagnostics ä Receive Diagnostic Mode.

∙Select 1-Enable.

∙Press ESC twice to return to the Main Menu.

∙Select Exit to save the Receive Diagnostic Mode setting and enter operating mode.

3.Set up another modem to send data to the modem. The terminal emulator will display the receive level correction value. Make note of this value.

4.From the terminal emulator, enter programming mode.

5.Set the receive gain level as follows:

∙Select Diagnostics ä Receive Gain.

∙Enter the receive level correction value, using the 1-Increase Gain 0.25 dB or 2-Decrease Gain 0.25 dB options.

∙Press ESC twice to return to the Main Menu.

∙Select Exit to save the Receive Gain value and enter operating mode.

6.Repeat steps 3-5 to ensure the receive level remains near zero (±0.5 dB) after your correction.

7.Disable the Receive Diagnostic Mode as follows:

∙Select Diagnostics ä Receive Diagnostic Mode.

∙Select 2-Disable.

RF Neulink

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NL6000 User Guide

Image 47

RF-Link Technology NL6000 manual Setting the Receive Gain, ∙ Select Deviation from the Diagnostics menu

Contents

NL6000 Wireless Modem Copyright Table of Contents RF Neulink NL6000 User Guide RF Neulink NL6000 User Guide Product Overview Use the NL6000 in a Simple Configuration Features Auto-Transmit Configuration TemplatesSingle and Multi- Point Addressing Acknowledgement 406.0 to 406.1 MHz Operation Safety WarningRegulatory Information FCC Part General Specifications Specifications Receiver UHF Radio SpecificationsCurrent Drain at 12 Transmitter VHF Radio Specifications Serial Port Hardware Installation and OperationPower Connections Parts Description DCE DTE LED Antenna ConnectionLEDs Operation Preparation Software ConfigurationTechnical Support Prerequisites Source and Destination Addressing Unique Data Requirements for a Base Station Addressing with Wildcards Behavior of Repeater Units Repeat from a Base to a Remote Repeat to Multiple Remotes using Wildcard Packet Data Options Transmission Mode FEC CRC RF Neulink NL6000 User Guide Acknowledgements Over-the-Air Data Rates Basic Serial Parameters Carrier Sense Multiple AccessDCD Mode Serial Connection to an I/O Device Pre- and Post-Data DCD Time Factory Default ParametersPlanning the RF Channel Select Network ä Unit Type Procedures General Procedures Returning to the Previous Menu Displaying the Configuration Summary Window Setting the Target Unit ID Toid Radio Network SetupSetting the Unit Type Select Network ä Unit Type Setting the Unit ID Myid Select Network ä Myid Serial Connection Setup Setting the Packet Mode Select Network ä Packet Mode Data Setup Setting the Max Retries Option Setting the Data Rate Select Network ä Data RateSetting the Request ACKs Option Setting the Contention Option Select Network ä Contention Trigger ID Value Use Repeater Setup File Management Downloading a Software Upgrade Restoring Parameters from Disk Select Save/Restore Parameters ä Save Parameters to DiskSaving Parameters to Disk Restoring Default Parameters Main Menu Summary Window Menu Quick Reference Serial Menu DCD RS-232 SubMenu Network Menu Repeater SubMenu Radio Menu Diagnostics Menu Save/Restore Parameters Menu Duty Cycle TroubleshootingOther Considerations Use a Faster Baud Rate Use a Fully-Wired RS-232 CableUnit Does Not Enter Programming Mode Use a Slower Baud Rate Select Diagnostics ä Transmit Continuous Random Data Appendix a Diagnosing and Correcting Performance ProblemsSetting the Frequency Trim includes setting Power Setting the Power Value ∙ Select Radio Ä Transmit Frequency for Active Channel Setting the Deviation and Balance∙ Select Frequency Trim from the Diagnostics menu Select Diagnostics ä Transmit 100 Hz Square Wave ∙ Select Diagnostics ä Receive Gain Setting the Receive Gain∙ Select Deviation from the Diagnostics menu ∙ Select Diagnostics ä Receive Diagnostic Mode Factory Default Values Appendix B Factory Default ParametersCategory Parameter Default Value Custom Value Index RF Neulink NL6000 User Guide