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

Page 47

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

47

NL6000 User Guide

Image 47

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 ConfigurationFeatures Auto-Transmit Configuration TemplatesSingle and Multi- Point Addressing Acknowledgement406.0 to 406.1 MHz Operation Safety WarningRegulatory Information FCC PartGeneral Specifications SpecificationsReceiver UHF Radio SpecificationsCurrent Drain at 12 TransmitterVHF Radio Specifications Serial Port Hardware Installation and OperationPower Connections Parts DescriptionDCE DTELED Antenna ConnectionLEDs OperationPreparation Software ConfigurationTechnical Support PrerequisitesSource and Destination Addressing Unique Data Requirements for a Base StationAddressing with Wildcards Behavior of Repeater UnitsRepeat from a Base to a Remote Repeat to Multiple Remotes using Wildcard Packet Data Options Transmission ModeFEC CRCRF Neulink NL6000 User Guide Acknowledgements Over-the-Air Data RatesBasic Serial Parameters Carrier Sense Multiple AccessDCD Mode Serial Connection to an I/O DevicePre- and Post-Data DCD Time Factory Default ParametersPlanning the RF Channel Select Network ä Unit Type ProceduresGeneral Procedures Returning to the Previous Menu Displaying the Configuration Summary WindowSetting the Target Unit ID Toid Radio Network SetupSetting the Unit Type Select Network ä Unit Type Setting the Unit ID Myid Select Network ä MyidSerial Connection Setup Setting the Packet Mode Select Network ä Packet Mode Data SetupSetting the Max Retries Option Setting the Data Rate Select Network ä Data RateSetting the Request ACKs Option Setting the Contention Option Select Network ä ContentionTrigger ID Value Use Repeater SetupFile Management Downloading a Software UpgradeRestoring Parameters from Disk Select Save/Restore Parameters ä Save Parameters to DiskSaving Parameters to Disk Restoring Default Parameters Main Menu Summary Window Menu Quick ReferenceSerial 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 RateSelect 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 ModeFactory Default Values Appendix B Factory Default ParametersCategory Parameter Default Value Custom Value Index RF Neulink NL6000 User Guide