19Outdoor Antenna Grounding — If an outside antenna is connected to this unit, be sure the antenna system is grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA 70, provides information with regard to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes, and requirements for the grounding electrode.

EXAMPLE OF ANTENNA GROUNDING

MAST

ANTENNA

 

LEAD IN

 

WIRE

GROUND

 

CLAMP

 

 

ANTENNA

 

DISCHARGE UNIT

 

(NEC SECTION 810-20)

ELECTRIC

 

SERVICE

 

EQUIPMENT

 

 

GROUNDING CONDUCTORS

 

(NEC SECTION 810-21)

 

GROUND CLAMPS

 

POWER SERIVCE 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 system installer’s attention to Article 820-40 of the NEC that 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.

CAUTION (FOR CANADA MODEL)

TO PREVENT ELECTRIC SHOCK, MATHC WIDE BLADE OF PLUG TO WIDE SLOT AND FULLY INSERT.

FOR CANADIAN CUSTOMERS

THIS DIGITAL APPARATUS DOES NOT EXCEED THE “CLASS B” LIMITS FOR RADIO NOISE EMISSIONS FROM DIGITAL APPARATUS SET OUT IN THE RADIO INTERFERENCE REGULATIONS OF THE CANADIAN DEPARTMENT OF COMMUNICATIONS.

FCC INFORMATION

1. IMPORTANT NOTICE: DO NOT MODIFY THIS

Compliance with FCC regulations does not guarantee

UNIT! This product, when installed as indicated in the

that interference will not occur in all installations. If

instructions contained in this manual, meets FCC

this product is found to be the source of interference,

requirements. Modifications not expressly approved

which can be determined by turning the unit “OFF”

by Yamaha may void your authority, granted by the

and “ON”, please try to eliminate the problem by using

FCC, to use the product.

one of the following measures:

2. IMPORTANT: When connecting this product to

Relocate either this product or the device that is being

accessories and/or another product use only high

affected by the interference.

quality shielded cables. Cable/s supplied with this

Utilize power outlets that are on different branch

product MUST be used. Follow all installation

(circuit breaker of fuse) circuits or install AC line filter/s.

instructions. Failure to follow instructions could void

In the case of radio or TV interference, relocate/

your FCC authorization to use this product in the USA.

reorient the antenna. If the antenna lead-in is 300

3. NOTE: This product has been tested and found to

ohm ribbon lead, change the lead-in to coaxial type

comply with the requirements listed in FCC

cable.

Regulations, Part 15 for Class “B” digital devices.

If these corrective measures do not produce

Compliance with these requirements provides a

satisfactory results, please contact the local retailer

reasonable level of assurance that your use of this

authorized to distribute this type of product. If you can

product in a residential environment will not result in

not locate the appropriate retailer, please contact

harmful interference with other electronic devices.

Yamaha Electronics Corp., U.S.A. 6600 Orangethorpe

This equipment generates/uses radio frequencies

Ave, Buena Park, CA 90620

and, if not installed and used according to the

The above statement apply ONLY to those products

instructions found in the users manual, may cause

distributed by Yamaha Corporation of America or its

interference harmful to the operation of other

subsidiaries.

electronic devices.

 

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