REI manual MDC-2100/MDC-900, Viewing Bands 1, 2 and, Press F4/MDC Anlz, Press SWEEP/ANALYZE

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Viewing Bands 1, 2 and 3;

Version 4

27 Feb 08

oYou can choose to begin with MDCB-allif you wish. You must view both MDCA- all and MDCB-allto see the entire spectrum.

•Set the span to 1.5GHz, if necessary. If a smaller span initially displays, press SWEEP/ANALYZE (CONTROL area) to select SWEEP. Press SHIFT (DATA FUNCTIONS area) and EXPAND (CONTROL area).

•Notice any signals displayed.

•Select MDCB-all. Use the same options discussed above.

•Set the span to 1.5GHz.

•Notice any signals displayed.

Viewing Bands 1, 2 and 3;

•You can view bands in any order but be sure to view all six spans.

•Press F4/MDC Anlz.

•Press F2 to toggle through each band. Note all signals.

Viewing smaller spans; After all bands have been viewed, cycle through each one again. Analyze all unknown signals.

•Position the display arrow over any signal with the rotary control (CONTROL area).

•Press NARROW (CONTROL area) if you wish.

•Press SWEEP/ANALYZE.

•Press NARROW if you wish.

Identifying signals;

•Press F4/Identify see Figure 6B.

oObserve whether the signal moved left or right, see Figure 7.

oThe possible frequencies will be displayed at the top left. If the signal moved left it is one frequency, if it moved right it is the other.

•Press F4/RETURN to return to the previous menu to identify all other signals.

•Press MENU/EXIT to return to the normal menu.

Figure 5: MDCA-ALL (OSCOR 5.0)

REI

MDC-2100/MDC-900

7

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Contents RESEARCH ELECTRONICS INTERNATIONAL 455 Security Drive MDC-2100/MDC-900MDC-900 MDC-2100 OWNER’S GUIDEFIGURE 11 ANALYZE MODE USING THE MDC OSCOR TABLE of CONTENTSTABLE of FIGURES STORING A SIGNAL IN THE MDC FREQUENCY RANGEFigure 1 MDC-2100 MICROWAVE DOWNCONVERTER INTRODUCTIONFilter A & B ANTENNA BANDFilter A Filter BInstalling the MDC-2100/MDC-900 Operational Control of the MDC-2100/MDC-900 Signal identification ProcessOSCOR Version Press F4/Identify see Figure 6B Viewing Bands 1, 2 andPress F4/MDC Anlz Press SWEEP/ANALYZEFIGURE 7 USING “IDENTIFY” TO VERIFY A SIGNAL OSCOR OSCOR Sweep and Analyze Modes with the MDCFigure 6A ANALYZING AN MDC SIGNAL OSCOR Figure 6B ANALYZING AN MDC SIGNAL OSCORFigure 8 SELECTING A SIGNAL WITH THE MDC OSCOR Storing a Sweep Span with the MDC Span Storing a Signal in the MDC Frequency RangeExample of a Desired Frequency Recommended ImplementationMicrowave Transmission Considerations for the MDC 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. Also, the MDC should be pointed up and possibly moved around the room to cover the ceiling, and down to cover the floor. Furthermore, if you expect a very sophisticated threat, it is recommended to point the MDC into ducting, above ceiling tiles, and in any enclosed spaces in which it would be possible to place a transmitter with a high gain antenna. It is highly recommended that the “Show All” mode of operation for the MDC-2100 be utilized MDCA-all and MDCB-all if using OSCOR 5.0. When a signal is detected, the user can then manually select the different antenna bands and filters to further investigate the signal. Or, the user can simply go to the analyze mode and allow the MDC to determine the operational frequency of the transmitter. Also, it is not recommended to use the MDC with the OSCOR automatic mode unless the MDC directional characteristics are taken into consideration. If running the OSCOR and MDC in the automatic mode, take care to enable the appropriate MDC spans. To maximize usage of the MDC, include MDC 3-21GHz Filter A and MDC 3-21GHz Filter B in your span list For OSCOR 4.0 users, set span to All Bands A&B Using the MTU-2100 Microwave Test Unit MDC-900 MDC-2100/MDC-900 SPECIFICATIONSSpecifications MDC-2100Technical Bulletin