Listen TechnologiesメーカーLA-122の使用説明書/サービス説明書
ページ先へ移動 of 16
User ’s Manual LA -122 Universal Remote Antenna Kit Listen T echnologies Corporation 8535 South 700 W est, Suite A Sandy , Utah 84070-2515 USA T elephone: +1.801.233.8992 T oll-Free (USA): 1.800.330.0891 F ax: +1.801.233.8995 E-mail: info@listentech.
LA-122 Universal Antenna Kit Thank you for purchasing this Listen product! If you have any questions or would like to offer suggestions on future Listen products, please contact us at the address shown below . LISTEN TECHNOLOGIES CORPORA TION 8535 South 700 W est, Suite A Sandy , Utah 84070-2515 USA Phone: +1.
Contents of Kit ............................................................................... page 2 Specifications ................................................................................ page 3 Architectural Specifications ................
If you plan to use your own coaxial cable instead of the provided cable, you must use cable and connectors rated at 50 ohms. Although cable used for cable TV installations looks similar to this cable, it won ’t work with your Listen system.
LA-122 Universal Antenna Kit LISTEN TECHNOLOGIES CORPORA TION 8535 South 700 West, Suite A Sandy , Utah 84070-2515 USA Phone: +1.801.233.8992 USA T oll Free: 1.800.330.0891 Fax:+1.801.233.8995 e-mail: info@listentech.com The antenna’s pattern is hemispherical, meaning that it has an “active” side and a ground side.
Selecting an Antenna L Selecting an Antenna L Selecting an Antenna L Selecting an Antenna L Selecting an Antenna L ocation ocation ocation ocation ocation The location and configuration of your antenna mount will determine the quality of your signal; therefore, there are some important factors to consider .
LA-122 Universal Antenna Kit LISTEN TECHNOLOGIES CORPORA TION 8535 South 700 West, Suite A Sandy , Utah 84070-2515 USA Phone: +1.801.233.8992 USA T oll Free: 1.
Diagram E. A flexible dipole can be mounted in your ceiling or wall as shown here. Although the Mounting Bracket is not shown here , it would be used to secure the Antenna Module to a beam. LA-122 Universal Antenna Kit LISTEN TECHNOLOGIES CORPORA TION 8535 South 700 W est, Suite A Sandy , Utah 84070-2515 USA Phone: +1.
Mounting to a Mast or Conduit The antenna may be mounted to a mast, pole or section of vertical conduit. A mast made of non- conductive material works best; however , if you must use a metal mast, be sure to orient the antenna mount so the mast is not between the antenna and the designated receiving area.
Connecting the Dipole Antenna Y ou have two choices of antenna with the dipole option: the rigid dipole, which has the two extendable arms, or the flexible dipole, which has the “ floppy ” wires with securing rings at the ends. Rigid dipole pieces screw onto the connectors at the top and bottom of the Antenna Module.
Monopole Antenna Mounting Options A monopole (single element) antenna may be mounted to a grounded light box or junc- tion box in a ceiling or floor using the Mount - ing Plate and Mounting Bracket. BEFORE ST ARTING, reverse the Antenna Module on the Mounting Bracket, then install the Hex K ep nut on the ground post (see Diagram G at right).
Diagram J . A reversed Antenna Module with Ground Plane and Shorting Plate. Mount to a Metal Surface Using the Ground Plane and Shorting Plate See Diagram J It is often convenient to place an antenna on top of a metal equipment rack.
Mounting a Monopole Antenna to a Metal Beam or Metal Ceiling See Diagram K F ollow the instructions for mounting to a metal equipment rack, orienting the antenna downward rather than upward.
T T T T T roubleshooting roubleshooting roubleshooting roubleshooting roubleshooting I’m not hearing anything in my receiver . 1. Mak e sure the receiver ’s batteries aren ’t dead, that it is turned on, set to the right channel, and the volume has been turned up.
My signal is strong but it is distorted. 1. Mak e sure your transmitter or stationary receiver is on the same channel as the receivers. 2. Mak e sure you are not too close to the antenna. 3. Lower the level of the audio signal being fed into the transmitter .
Listen Offers a Limited Lifetime W arranty , Including a P erformance Guarantee. Listen T echnologies Corporation (Listen) warrants its transmitters and receivers (L T -700, L T -800, LR-100, LR -300, LR -400, LR-500, LR-600, etc.
デバイスListen Technologies LA-122の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Listen Technologies LA-122をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはListen Technologies LA-122の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Listen Technologies LA-122の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Listen Technologies LA-122で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Listen Technologies LA-122を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はListen Technologies LA-122の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Listen Technologies LA-122に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちListen Technologies LA-122デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
