REIメーカーMDC-900の使用説明書/サービス説明書
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Version 4 27 Feb 08 MDC-900 MDC-2100 OWNER’S GUIDE RESEARCH ELECTRONICS INTERNATIONAL 455 Security Drive Algood, TN 38506 U.S.A. +1 931-537-6032 http://www.
Version 4 27 Feb 08 T ABLE of CONTENTS TABLE OF CONTENTS .................................................................................................... 2 TABLE OF FIGURES ..........................................................................
Version 4 27 Feb 08 INTRODUCTION The OSCOR Microwave Downconverter option (MDC-2100) expands the OSCOR ’s frequency range limit to 21GHz. The MDC-900 extends the OSCOR ’ s range to 9GHz . Note: General descriptions of the MDC-2100 in this guide may not always include exceptions for the MDC-900, which does not cover the 9 to 21GHz spans.
Version 4 27 Feb 08 3 6 9 1 2 1 5 18 21 0 1.5 All N um b ers in G Hz . Antennas 3-9* 9-15 15-21 4.5 7.5 1 0 .5 13 .5 1 6.5 19 .5 MDC- 900 onl y *The MDC-900 only c over s the b and 1 fr eque ncy r ange . Figure 2: ILLUSTRATION OF THE MDC-2100 DOWNCONVE RSION PROCESS The OSCOR (version 5.
Version 4 27 Feb 08 Inst alling the MDC-2100/MDC-900 In order to use the MDC with the OSCOR, a special connector (the OEP-2100) must be installed in the connector tray of the OSCOR. This connect or should be installed permanently into the connector tray and provides for easy connection of the MDC while not affecting the OSCOR normal operation.
Version 4 27 Feb 08 Operational Control of the MDC-2100/MDC-900 OSCOR Version 4.0 Operational control of the MDC-2100 is provided by the OSCOR keypad using the normal OSCOR functional control. For example, in the OSCOR SWEEP or ANALYZE modes, pressing the F1 button will toggle through all of the OSCOR inputs including the MDC- 2100 frequency bands.
Version 4 27 Feb 08 o You can choose to begin with MDCB-all if you wish. You must view both MDCA- all and MDCB-all to see the entire spectrum. • Set the span to 1.5GHz, if necessary. If a smaller span init ially displays, press SWEEP/ANALYZE (CONTROL area) to select SWEEP .
Version 4 27 Feb 08 Figure 6A: ANALYZING AN MD C SIGNAL (OS COR 4.0) Figure 6B: ANALYZING AN MD C SIGNAL (OS COR 5.0) FIGURE 7: USING “IDENTIFY” TO VERIFY A SIGNAL (OSCOR 5.
Version 4 27 Feb 08 the F4 button to further analyze the signal, it is possible t o analyze which antenna and filter that is actually receiving the signal. Figure 9 shows the proper antenna selected and the proper filter selected which corrects the signal shape.
Version 4 27 Feb 08 Figure 9: SELECTING THE PROPER M DC BAND AND FILTER (OSCO R 4.0) Storing a Sweep Span with the MDC Since the MDC down-conversion process displays multiple frequency bands at once, .
Version 4 27 Feb 08 includes the desired frequency span. The table below provides some examples and recommended search span for speed and accuracy. Example of a Desired Frequency Span: Recommended Implementation: 4 – 6GHz 3 – 9GHz (MDCA-1 & MDCB-1/OSCOR 5.
Version 4 27 Feb 08 Microwave T r ansmission Considerations for the MDC There are important principles and considerations to understand when dealing with microwave frequency radiators. • As the frequency increases, the penetration of RF signals through buildin g materials, foliage, etc.
Version 4 27 Feb 08 it is absolutely necessary in order to save time. A good rule of thumb is to assume that the MDC has an antenna pattern that is about 100 degrees wide. In other words, it is necessary to point the MDC in at least 4 different directions around the room to cover the perimeter.
Version 4 27 Feb 08 Using the MTU-2100 Microwave T est Unit The MTU-2100 is designed to provide a simple test to verify that the MDC is working properly. When the button is pressed on the MTU, low power signals are generated at about 5.9, 11.8, and 17.
Version 4 27 Feb 08 MDC-2100/MDC-900 SPECIFICA TIONS Specifications M DC-2100 MDC-900 Frequency Range: 3-21GHz 3-9GHz Conversion output: 5MHz to 3005MHz 5MHz to 3005MHz Frequency Bands of Operation: B.
Version 4 27 Feb 08 REI MDC-2100/MDC-900 16 Technical Bulletin 24 April 2002 For the MDC-900 and MDC-2100 This bulletin describes a calibration process to ensure the maximum technical performance for the MDC unit.
デバイスREI MDC-900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：
REI MDC-900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REI MDC-900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。REI MDC-900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。REI MDC-900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。
REI MDC-900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REI MDC-900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、REI MDC-900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REI MDC-900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。
