Why is the C or G waveform not satisfactory on my Nautel XR6?
If the C or G waveform is not a rectangular wave from 0 to 24 V, it indicates that the PA (Power Amplifier) associated with the unsatisfactory waveform is defective. The suggested solution is to replace the PA.
What to do if the RF Drive alarm LED remains on after Reset is pressed in Nautel Transmitter?
If the RF Drive alarm LED remains illuminated after pressing the Reset button, proceed to the RF drive tuning check.
How to troubleshoot if resistance measurement in Step 1 is greater than 1.0 MΩ in Nautel XR6?
If the resistance measurement in Step 1 is greater than 1.0 MΩ, it indicates that the modulator assembly associated with the RF power block is likely defective, specifically that it contains defective MOSFETs. Replace the suspect modulator assembly.
What to do if output voltage of modulators is not within 1.5 V of each other in Nautel XR6?
If the output voltage of the modulators is not within 1.5 V of each other, suspect the associated modulator.
What to do if the Temp/Inhibit alarm LED will not turn off and on as indicated in Nautel XR6 Transmitter?
If the Temp/Inhibit alarm LED does not turn off and on as expected, it indicates a fault within the alarm circuitry on the RF drive control PWB. This fault must be repaired before proceeding.
How to troubleshoot if resistance measurement in Step 4 is not satisfactory in Nautel XR6 Transmitter?
If the resistance measurement in Step 4 is not satisfactory, sequentially remove the modulator assembly and both RF amplifiers associated with the suspect RF power block.
What to do if PA volts to ground impedance measurement is less than 77 kΩ in Nautel XR6?
If the PA volts to ground impedance measurement is less than 77 kΩ, disconnect connector P1 from J1 of the RF drive control PWB and repeat the resistance measurement.
What to do if Temp/Inhibit LED was on in Nautel XR6 Transmitter?
If the Temp/Inhibit LED was on, connect the module to the test cable and perform the Temp/inhibit check.
What to do if RF Drive LED was on in Nautel XR6?
If the RF Drive LED was on, connect the module to the test cable and perform the RF drive tuning check.
Provides technical information for operating and maintaining the transmitter.
Details Nautel's support channels and online resources for users.
Covers electrical, lightning, RF, toxic, and other environmental hazards.
Emphasizes training, site orientation, access control, and hazard marking for safety.
Describes the input power transformer and low voltage supplies for the transmitter.
Details the components and function of the exciter stage, including synthesizer and driver PWBs.
Explains the RF power blocks, modules, fans, and connections to the distribution PWB.
Covers filtering, combining, monitoring, and control logic of transmitter operations.
Describes the LCD display panel and buttons for interacting with the transmitter.
Covers power scheduler, auto exciter transfer, and general transmitter configurations.
Explains how to view, edit, and schedule transmitter presets for different operating modes.
Guides on setting clock, software versions, hardware settings, and meter calibration.
Explains how to access, view, and understand transmitter events and alarms.
Details the procedure to erase the entire contents of the transmitter's event log.
Outlines visual inspection, cleaning procedures, and minimum visit frequency for maintenance.
Covers hardware checks, battery replacement, and air filter replacement procedures.
Describes signal quality checks and periodic inspection of lightning protection systems.
Lists necessary test equipment and steps to complete before performing any testing or adjustments.
Verifies and adjusts modulation, exciter gain, and peak limiting for proper operation.
Guides on specific adjustments like RF drive symmetry as directed by troubleshooting.
Defines key terms and acronyms used throughout the Nautel documentation.
General| Brand | Nautel |
|---|---|
| Model | XR6 |
| Category | Transmitter |
| Language | English |
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