Nautel NX100 Preinstallation Manual

Also see for NX100: Installation manual Manual Troubleshooting manual Manual

Nautel NX100 Preinstallation Manual Manual pdf 27 page image

NX100 Pre-installation Manual DescriptionIssue 3.2 2017-03-31 Page 1-3OptionsRF OutputThe NX100 supports the use of a 3-1/8 inch EIA female connector (standard) or optionally, a 4-1/16inch EIA female connector. The appropriate inner male (bullet) connector and flange connector tocomplete the RF output connection are not provided with the transmitter and must be purchasedseparately.IBOCThe NX100 supports IBOC digital radio as a modulation option. The external IBOC signal sourceprovides a signal to the NX100 exciter. See “IBOC” on page 7-2 for more information.DRMThe NX100 supports Digital Radio Mondiale (DRM) radio as a modulation option. The externalDRM signal source provides a modulating signal to the NX100 exciter via I/Q over AES. See“DRM” on page 7-2 for more information.Open/closed air coolingThere are two cooling configurations available for the transmitter. See Section 4, “Coolingrequirements” on page 4-1 for more information.GPS Sync CardA GPS sync PWB can be purchased that is capable of driving a 3.3 V or 5 V GPS antenna. If theoptional GPS sync PWB is installed, it provides the necessary 10 MHz, 1 PPS and 1 kHz sync signalsused by the exciter(s). The exciter uses these signals to synchronize the transmitter’s carrier frequencyand phase to this GPS reference. See “Frequency synchronization signals” on page 7-3 for moreinformation.USB sound cardThe NX100 supports using audio files stored on a USB flash drive as a backup audio source. TheUSB sound card is necessary for connecting the audio output of the single-board computer (SBC) tothe exciter’s audio input.SparesA kit of spare parts is available that contains fuses, ferrite toroids, semiconductors, low voltage powersupplies, cooling fan, air filter and other items. Additional spare parts and assemblies may bepurchased individually including RF power modules, fan tray assemblies and PWB assemblies.