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This page lists all whitepapers, presentations, videos, and documentation that has been approved for viewing by Nautel sales staff. If you have any comments about the listed items, please e-mail info@nautel.com

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All brand and product names used here are trademarks, registered trademarks or service marks of of their respective holders.

              

Brochures

- J1000, 1 kW AM Transmitter
- XR3, 3 kW AM Transmitter
- XR3, 3 kW AM Transmitter Technical Summary
- XR6, 6 kW AM Transmitter
- XR6, 6 kW AM Transmitter Technical Summary
- XR12, 12 kW AM Transmitter
- XR12, 12 kW AM Transmitter Technical Summary 

- NX Series
- NX25, 25 kW AM Transmitter
- NX25, 25 kW AM Transmitter Technical Summary
- NX50, 50 kW AM Transmitter
- NX50, 50 kW AM Transmitter Technical Summary

- NV Series
- NV3.5 - 3.5 kW FM Transmitter
- NV5 - 5 kW FM Transmitter
- NV7.5 - 7.5 kW FM Transmitter
- NV10 - 10 kW FM Transmitter
- NV 15 - 15 kW FM Transmitter
- NV20 - 20 kW FM Transmitter
- NV30 - 30 kW FM Transmitter
- NV40 - 40 kW FM Transmitter
- NV Series Integrated Exciter

- V Series FM Analog Transmitters
- V Series FM Digital Transmiiters

- Importer Plus - HD Radio Importer
- Exporter Plus - HD Radio Exporter
- M50, Direct-to-Channel FM Exciter

Pre-Installation Sheets (Mechanical, electrical and cooling data)

- J1000, 1 kW AM Transmitter
- XR12, 12 kW AM Transmitter
- XR25, 25 kW AM Transmitter

- V5, 5 kW FM Transmitter (ANALOG)
- V5, 5 kW FM Transmitter (HYBRID)
- V5, 5 kW FM Transmitter (HD RADIO)
- V10, 10 kW FM Transmitter (ANALOG)
- V10, 10 kW FM Transmitter (HYBRID)
- V10, 10 kW FM Transmitter (HD RADIO)

Presentations

NAB 2009 Presentations

 Energy Conservation in AM Transmitters - Tim Hardy, Head of Engineering

 Implications of Increasing Man Made Noise Floor Levels on Radio Broadcasting - Charles W. Kelly Jr., Director of Sales

 FM-IBOC Broadcast Systems Architecture Considerations for Single Frequency Networks - Philipp Schmid, Research Engineer

 Improved Lightning Protection for for Radio Transmitter Stations - John Pinks, Chief Engineer Emeritus

 Easing the Transition to AM IBOC - Brian Walker, REsearch Engineer

AM Broadcast Transmitter Site Conversion for HD Radio Transmission

Presented by David Maxon of Broadcast Signal Lab on October 07, 2004 at the NAB Fall Radio Show
This presentation explores the complexities of measuring your IBOC signal. With the addition of a digital waveform to the analog, a host of measurement challenges arise: How do you look at the digital signal carriers? How do you look at occupied bandwidth? How do you know your measurements are meaningful? David presents an overview on how to avoid the traps and pitfalls in taking measurements.

High Power Medium Wave AM Radio Transmitters: Nautel's NA Series 

A tutorial on Nautel's NA Series transmitters covering: features, technical theory and DRM.

FM Broadcast Transmitter Site Conversion for HD Radio Transmission 

Presented by Tim Hardy, Nautel's Head of Development on October 07, 2004 at the NAB Fall Radio Show
This presentation provides an overview of transmission equipment required for FM HD Radio. Particular emphasis is placed on explaining the effect of transmitter non-linearity and its mitigation using digital adaptive pre-correction. The signal path from the audio processor to the antenna for both common and separate amplification is also covered.

Measuring Your IBOC Spectrum

Presented by David Maxon of Broadcast Signal Lab on October 07, 2004 at the NAB Fall Radio Show
This presentation explores the complexities of measuring your IBOC signal. With the addition of a digital waveform to the analog, a host of measurement challenges arise: How do you look at the digital signal carriers? How do you look at occupied bandwidth? How do you know your measurements are meaningful? David presents an overview on how to avoid the traps and pitfalls in taking measurements

Overview of KUVO's Conversion to HD Radio 

Presented by Mike Pappas, Chief Engineer of KUVO, at the Nautel Users' Group on October 7, 2004
This presentation provides an in depth look at the entire HD Radio conversion process – from deciding to covert to HD Radio, evaluating equipment options (from the studio to antenna), preparing the site, organizing logistics, commissioning, marketing HD Radio to listeners and training staff.

IBOC System Networking 

A tutorial on IBOC System Networking covering: System Architecture, Network Basics, Real Systems and Managing the Traffic.  

White Papers

HD Reliable Transport Whitepaper 

NAB2007 HD Reliable Transport Presentation 

Addressing Packet Loss in HD Transmission Article 

Compliance of Nautel AM Broadcast Transmitters with ITU Recommendation SM.328, Spectra and Bandwidth of Emissions

FCC AM Specs

FCC AM Specs

FCC AM Specs

FCC FM Specs

FCC Report & Order

KUVO Turns on IBOC in Colorado

Lightning Protection for Radio Transmitter Stations

Recommendations for Transmitter Site Preparation

IBOC Exgine/Exporter/Importer System Guide

Equipment Performance Measurement 

Prepared by: David Maxson of Broadcast Signal Labs
On July 28, 2004 KUVO began initial on-air testing of its new Nautel V10 transmitter. The transmitter is equipped with hybrid In Band On Channel (IBOC) transmission capability. his document outlines the 47 CFR 73,1590 measurements that must performed upon installation of a new transmitter.

Improved Spectral Compliance For FM HD Radio Using Digital Adaptive Pre-Correction

HD Radio™ implementation has introduced a great deal of discussion about spectral re-growth problems when digital carriers intermodulate with the primary FM carrier, causing spurious emissions on adjacent channels. Pre-correction systems may be implemented to mitigate the effects of transmitter system nonlinearity giving rise to the out-of-band emissions. his paper presents theory and measured performance of digital adaptive pre-correction under unstable environmental conditions.

Digital Adaptive Pre-correction Video

This video shows a spectrum analyzer (in real time) as the M50 digital exciter samples the hybrid HD Radio output of the V10, 10 kW FM transmitter and dynamically applies digital adaptive precorrection.

Improvements to FM & IBOC Signal Quality through the use of Pre-equalization

FM HD Radio transmission, whether pure digital or hybrid (FM + HD), requires the use of a linearized transmitter to minimize the generation of intermodulation products during amplification of the HD signal.  Even these transmitters have limitations to their linearity so to further reduce spectral regrowth, pre-correction techniques at the exciter level have been employed.  With the hardware now available in these modern exciters coupled with their linear transmitter, it is also possible to add corrections for amplitude and phase variances introduced by the transmission system.  The objective of this paper is to demonstrate improvements that can be achieved to the FM Broadcast signal, both analog and digital, by the use of pre-equalization at the exciter stage.

Discontinued Products

- XR50, 50 kW AM Transmitter
- XR50, 50 kW AM Transmitter Technical Summary
- NA100, 100 kW AM Transmitter
- NA200, 200 kW AM Transmitter
- NA300, 300 kW AM Transmitter 

- Q20, 20 kW FM Transmitter
- Q30, 30 kW FM Transmitter
- Q40, 40 kW FM Transmitter

- NEIBOC AM HD Radio Signal Generator
- NEIBOC FM HD Radio Signal Generator 

-NE30, 30 W FM Exciter