Linear Satellite Radio Code Setting Instructions, Checkout and Test, Linear Limited Warranty

CHECKOUT AND TEST

After coding the D-4B transmitter and receiver, the units should be tested as a system.

NOTE:

The receiver should be powered as described in the Code Setting and Installation Instructions pamphlet enclosed with the receiver. Provision should be made (with a meter or sounder) to detect that the correct receiver output is activated when a signal is received from the D-4B transmitter.

To test the transmitter, perform the following steps:

STEP 1: Move the transmitter at least six feet away from the receiver and press a pushbutton. Receiver activation indicates that the transmitter is operating properly and that the transmitter/receiver’s digital codes are correctly matched.

NOTE:

The transmitter transmits continously with any button depressed. The red LED lights during transmission to indicate batery condition.

STEP 2: Operate the transmitter from various locations. This will help to locate possible null areas where structural steel, and/or certain obstacles may interfere with transmission.

If the transmitter fails to activate the receiver, first check the coding switches to see that the switch keys in the transmitter and receiver are properly matched. Next, check the battery and replace it if it is week. Although the battery should last for a year with normal use, it is good practice to install a new battery every six months.

LINEAR LIMITED WARRANTY

This Linear product is warranted against defects in material and workmanship for twelve (12) months. The Warranty Expiration Date is labeled on the product. This warranty extends only to wholesale customers who buy direct from Linear or through Linear’s normal distribution channels. Linear does not warrant this product to consumers. Consumers should inquire from their selling dealer as to the nature of the dealer’s warranty, if any. There are no obligations or liabilities on the part of Linear corporation for consequential damages arising out of or in connection with use or performance of this product or other indirect damages with respect to loss of property, revenue, or profit, or cost of removal, installation, or reinstallation. All implied warranties, including implied warranties for merchantability and implied warranties for fitness, are valid only until Warranty Expiration Date as labeled on the product. This Linear

Corporation Warranty is in lieu of all other warranties express or implied.

For warranty service on Linear equipment return product, at sender’s expense to:

Linear Corporation

5957 Landau Court

Carlsbad, CA 92008 Attention: Repairs Department

IMPORTANT !!!

Linear radio controls provide a reliable communications link and fill an important need in portable wireless signalling. However, there are some limitations which must be observed.

✶For U.S. installations only: The radios are required to comply with FCC Rules and Regulations as Part 15 devices. As such, they have limited transmitter power and therefore limited range.

✶Receivers may be blocked by radio signals that occur on or near their operating frequencies, regardless of code settings.

✶A receiver cannot respond to more than one transmitted signal at a time.

✶Infrequently used radio links should be tested regularly to protect against undetected interference or fault.

✶A general knowledge of radio and its vagaries should be gained prior to acting as a wholesale distributor or dealer, and these facts should be communicated to the ultimate users.

Copyright © 1989 Linear Corporation 203983 A

D-4B

FOUR-CHANNEL DIGITAL TRANSMITTER

Code Setting

Instructions

A NORTEK COMPANY

2055 Corte Del Nogal

Carlsbad, CA 92009

(619)438-7000 ∙ (800) 421-1587 CA (800) 321-1845 ∙ FAX (619) 438-7043

Customer/Technical Service: (800) 392-0123