FIGURE 1

EXAMPLE OF ANTENNA GROUNDING ACCORDING TO

NATIONAL ELECTRICAL CODE INSTRUCYIONS

CONTAINED IN ARTICLE 810 -"RADIO AND TELEVISION EQUIPMENT"

ANTENNA LEAD

IN WIRE

GROUND CLAMP

ELECTRIC

SERVICE EQUIPMENT

ANTENNA DISCHARGE UNIT (NEC SECTION 810-20)

GROUNDING CONDUCTORS (NEC SECTION 810-21)

GROUND CLAMPS

POWER SERVICE GROUNDING ELECTRODE SYSTEM

(NEC ART 250, PART H)

NEC - NATIONAL ELECTRICAL CODE

NOTE TO CATV SYSTEM INSTALLER:

This reminder is provided to call the CATV (Cable-TV) system installer's attention to Article 820-40 of the NEC, which provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical.

NOTE:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful in- terference in a residential installation. This equipment generates, uses and can radiate radio frequency en- ergy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guaran- tee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on,

the user is encouraged to try to correct the interfer- ence by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is con- nected.

Consult the dealer or an experienced radio/TV technician for help.

NOTE:Changes or modifications may cause this unit to fail to comply with Part 15 of the FCC Rules and may void the user's authority to operate the equipment.

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la Classe B est conforme à la norme NMB-003 du Canada.

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Marantz PMD690 manual NEC National Electrical Code

PMD690 specifications

The Marantz PMD690 is a versatile and user-friendly digital audio recorder that has gained popularity among audio professionals and enthusiasts alike. This device is designed to deliver high-quality sound recording while ensuring ease of use, making it an ideal choice for a variety of applications, including interviews, live performances, and field recordings.

One of the standout features of the PMD690 is its high-fidelity recording capability. It supports multiple audio formats, including WAV and MP3, allowing users to choose the quality that best suits their needs. The device can record in resolutions of up to 24-bit/96kHz, ensuring that the captured audio retains its clarity and detail. This makes it particularly valuable for music recording, sound design, and broadcasting.

The PMD690 is equipped with dual XLR/TRS combo inputs, allowing for a range of connectivity options. This flexibility enables users to connect various microphones and line-level devices, providing them with the freedom to adapt to different recording scenarios. The included phantom power supports condenser microphones, expanding the range of possible setups for professional recordings.

An intuitive interface is another hallmark of the PMD690. The device features a large, backlit LCD screen that provides clear visibility of recording levels, battery life, and remaining recording time. Navigating through the menu is straightforward, and the inclusion of dedicated control buttons enhances the overall user experience. Many users appreciate the quick access to essential functions, which is crucial in fast-paced recording environments.

In addition to its recording capabilities, the Marantz PMD690 offers robust editing features. Users can perform functions such as dividing and combining tracks, as well as adding simple metadata, making post-production tasks more convenient. This feature is particularly beneficial for podcasters and field recorders who need to manage and organize their recordings efficiently.

Rugged and portable, the PMD690 is designed for durability, making it an excellent choice for outdoor and on-the-go recording. Its compact design means it can easily fit into a camera bag or backpack, and its battery life is sufficiently long to handle extended recording sessions without the need for recharging.

In conclusion, the Marantz PMD690 stands out as a reliable and high-performance digital audio recorder that meets the needs of professionals and hobbyists alike. With its quality recording capabilities, versatile connectivity options, user-friendly interface, and durable construction, it is a valuable tool for anyone looking to capture audio in a variety of settings. Whether for professional use or personal projects, the PMD690 is sure to deliver exceptional performance and recording quality.