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Davicom FMBM-01 Reference Manual

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FMBM-01/-02
AM-FM Broadcast Monitor
Reference Manual
Version 2.0
March 2015
MAN1024
Davicom, a division of Comlab Inc.
2300, Leon-Harmel, suite 220, Quebec, QC, Canada
G1N 4L2
Tel: +1.418.682.3380 Fax: +1.418.682.8996
w w w . d a v i c o m . c o m

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  • Page 1 AM-FM Broadcast Monitor March 2015 MAN1024 Reference Manual Davicom, a division of Comlab Inc. 2300, Leon-Harmel, suite 220, Quebec, QC, Canada G1N 4L2 Tel: +1.418.682.3380 Fax: +1.418.682.8996 w w w . d a v i c o m . c o m...
  • Page 2 Davicom AM-FM Broadcast Monitor Reference Manual www.davicom.com Man 1024...
  • Page 3 Davicom FMBM, Reference Manual, March 2015...

  • Page 4: Table Of Contents

    Operation.........................13 Local operation with front-panel display & buttons.............15 4.1.1 Default display.....................15 4.1.2 Menu selection mode ..................16 Remote operation through Davicom unit ..............19 Remote operation with a PC ..................24 Settings & adjustments ....................29 4.4.1 Program de-emphasis jumper (JP7) ..............29 4.4.2 Relay mode selection jumpers (JP2-JP6) ............29 4.4.3...

  • Page 5: General Information

    Service of the FMBM should be performed by qualified technical personnel who are familiar with the unit. Note that the Davicom FMBM is designed for indoor use in a dry location, Installation and operation in other locations could be hazardous.
  • Page 6 Industry Canada This Class A digital apparatus complies with Canadian ICES-003. Davicom FMBM, Reference Manual, March 2015...

  • Page 7: Introduction

    2 Introduction Davicom’s AM/FM Broadcast Monitor (FMBM) is designed to be used as a receiver for on-site and off-site monitoring of broadcast transmitters. It offers a large number of advanced features in a compact, low-cost package. Remotely controllable through Davicom’s line of intelligent site monitoring systems, the FMBM can also be manually configured and operated without a Davicom unit.

  • Page 8: Specifications

    Headphone volume adjustment Power reference level Power Supply Voltage, Max Current 12 Vdc, 500 mA with all alarm relays on Dimensions & Weight 1 RU, half width, 1.0 kg (2.2 lbs) Table 1. Specifications Davicom FMBM, Reference Manual, March 2015...

  • Page 9: Description, Installation & Connections

     Alarm LED: Shows aggregate status of all alarms in FMBM.  Power Monitor Calibration: 10-turn potentiometer, allows calibration of back-panel RF- Level DC output. See Section 4.4.7.  Headphone Jack: 3.5 mm jack for standard stereo headphones. Davicom FMBM, Reference Manual, March 2015...

  • Page 10: Back Panel & Screw-Terminal Pinout

    Antenna Input High-Level RF Input USB Connector Figure 2. Back panel of FMBM-01 (Top) and FMBM-02 (Bottom)  Alarm, Monitor & Audio Outputs (see Figure 3 for details)  Antenna Input : Type F connector for low-level RF input from 75Ω antenna.
  • Page 11  12Vdc Power Connector: Davicom standard XLR power connector. The corresponding female XLR connector is supplied with the FMBM’s accessories.  USB Communications (Type B) Connector: Connector for interface to Davicom units or to a PC.  AES Digital Output** (Mini XLR connector, Model -02 only): optional AES digital output with jumper selectable rates of 44.1 kHz, 48 kHz, 88.2 kHz and 96 kHz.

  • Page 12: Cables, Connections And Accessories

    (+12V is on Pin 4 and Ground is on Pin 1) and plug-in screw-terminals for the Alarm Relay, Monitoring and Audio outputs. 3.1.4 Power supply The FMBM operates from any standard 12Vdc Power Supply, such as the Davicom ILPS5012N, that can source up to 1A. Davicom FMBM, Reference Manual, March 2015...

  • Page 13: Software

    The FMBM itself requires no other special software installation. It is normally delivered with its operating firmware pre-installed. It is however possible to update this firmware when new features or bug fixes become available. The firmware can be updated by following the procedure given in Appendix A. Davicom FMBM, Reference Manual, March 2015...

  • Page 14: Operation

    Figure 4. Stand-alone operation. Described in Section 4.1. The second mode operates through any Davicom Intelligent Remote Control system that is running firmware version 5.42 or higher. This mode offers remote control capability and close integration with the Davicom’s automation structure.
  • Page 15 Figure 5. Operation with a Davicom unit. Described in Section 4.2. The third mode is via the FMBM’s back-panel USB connector in conjunction with a communications-terminal program such as HyperTerminal, commonly found on Windows Operating Systems. The FMBM’s USB communications driver must be installed prior to operating in this mode.

  • Page 16: Local Operation With Front-Panel Display & Buttons

    If the AM band is selected, typical displays would be as shown below, where Mod is the AM Modulation index. Freq 800.0kHz F Drift -.1kHz Mod 100% MONO RSSI -68dBm MONO When the signal source is set to MPX, these the following screen is displayed: MPX IN Dev 75kHz MONO Davicom FMBM, Reference Manual, March 2015...

  • Page 17: Menu Selection Mode

    ^ 62 RSSI: -64dBm Firmware V 1.4 Firmware Upgrade ^Cancel {or Update} Exit Firmware v1.x.x Table 2. Menu items and description *Note that on the AM band, the term Deviation is replaced by Modulation Davicom FMBM, Reference Manual, March 2015...
  • Page 18 0 to 79 kHz. 13-Low Deviation Timeout sets the number of seconds during which the deviation must be continuously below the Low Deviation Limit for a Low Deviation Alarm to become active. Davicom FMBM, Reference Manual, March 2015...
  • Page 19 21- Exit exits the Menu selection mode and returns to the default display. Note that an Exit exists at both the very beginning and very end of the Menu Selection mode. Firmware version is also shown in the Exit screen. Davicom FMBM, Reference Manual, March 2015...

  • Page 20: Remote Operation Through Davicom Unit

    Power-up the FMBM and wait a few seconds for it to automatically sync with the Davicom. To connect to the FMBM through the Davicom, first connect to the unit in your usual way, start- up DavLink and connect to your unit.
  • Page 21 Then click on the “Davicom Expansions” button as shown in Figure 8 below. Figure 8. Devices window. Clicking on the “Davicom Expansions” button brings-up the window of Figure 9 which allows configuration of the FMBM and all its settings: Figure 9. FMBM Configuration window.
  • Page 22 If the FMBM was not connected or had not been detected by the Davicom, a message at the top of the window would have indicated that no FMBM was detected. FMBM drop-down list The Davicom can accommodate up to 4 FMBM units which are selected through the FMBM drop-down list.
  • Page 23 The frequency Drift Limit field indicates the number of kHz above which the Frequency Drift Alarm will be set to on. This alarm will also turn on the Davicom’s 1FM02 flag which can be used with Virtual Logic Gates to perform different actions or make alarm calls.
  • Page 24 This will display the screen as shown in Figure 10a below. Figure 10. Site Views screen Click on the Devices tab and then on the FMBM button (Figure 10b), this will display the screen shown in Figure 11. Davicom FMBM, Reference Manual, March 2015...

  • Page 25: Remote Operation With A Pc

    COM port. Once communications is established, enter “M” for Main menu and the following screen will appear. Figure 12. Main VT-100 menu screen Menu items are selected simply by pressing the corresponding letter on your keyboard. Davicom FMBM, Reference Manual, March 2015...
  • Page 26 Figure 13. “A” Radio Setting menu Starting from the main screen of Figure 12 and pressing “B” will display the menu of Figure Figure 14. “B” Deviation Alarm Setting menu Davicom FMBM, Reference Manual, March 2015...
  • Page 27 The following screens are obtained by pressing the corresponding letters on your keyboard. Figure 15. “C” RSSI Menu screen Figure 16. “D” Frequency Drift Menu screen. Davicom FMBM, Reference Manual, March 2015...
  • Page 28 Figure 17. “E” Stereo Alarm Menu screen. Note that the “F” key has no effect in VT-100 mode Figure 18. “G” Alarm Summary Menu screen Davicom FMBM, Reference Manual, March 2015...
  • Page 29 Note that the “I” Update Firmware selection is used to set the FMBM in firmware update mode where it awaits input from the “FMBMUpgradeTool.exe” software (see Appendix A). Pressing the “X” key exits the VT-100 mode and terminates communications. To re-start, simply press the “M” key again. Davicom FMBM, Reference Manual, March 2015...

  • Page 30: Settings & Adjustments

    A Pre-emphasis correction (75 s) will be applied to the audio output signals when jumpers JP9 and JP7 are installed. The correction is applied to the analog output as well as the digital output when the FM-AES option is installed. Davicom FMBM, Reference Manual, March 2015...

  • Page 31: Peak Integration Time Constant (Jp8, Jp11)

    If you are in High-Level input mode, inject a known RF signal into the unit’s RF input, and then press the Menu button and scroll down to the Power Monitor Calibration Menu item. You should see the following screen: Power Monitor Calibration Davicom FMBM, Reference Manual, March 2015...
  • Page 32 5V output that will correspond to the nominal RF Power at the input. The transfer function is 0.5V/dB. Pressing the Menu button again will exit this mode and allow you to scroll back up (or down) to the Menu mode exit. Davicom FMBM, Reference Manual, March 2015...
  • Page 33 Figure 20 Printed Circuit Board Layout and jumper locations Davicom FMBM, Reference Manual, March 2015...

  • Page 34: Support/Contact

     By telephone at 1-866-282-3380 (toll-free in North America) or at +1-418-682-3380 from elsewhere.  Through our web site at www.davicom.com/contact Davicom’s address is: Davicom, a division of Comlab Inc 2300 León-Harmel, Suite 220 Quebec City, Quebec Canada, G1N 4L2 Davicom FMBM, Reference Manual, March 2015...

  • Page 35: Appendix A

    10. Once these steps are completed, click on “Restart FMBM Unit” to finalize the update process in the FMBM. 11. Exit the FMBMUpgradeTool program by selecting File and then Exit. Figure 21 Firmware Upgrade Tool screen Davicom FMBM, Reference Manual, March 2015...

  • Page 36: Appendix B

    3. Secure the card with the 4 screws provided with the AES card 4. Re-install the FMBM cover 5. Remove the “Not Installed” sticker located above the Mini XLR connector on the rear panel. Davicom FMBM, Reference Manual, March 2015...

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