SAF Spectrum Compact User Manual
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User manual
24–40 GHz Spectrum Compact v.2
VER 1.1 (FW V5.3.3)
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Summary of Contents for SAF Spectrum Compact

  • Page 1 User manual 24–40 GHz Spectrum Compact v.2 VER 1.1 (FW V5.3.3)
  • Page 2 Spectrum Compact does not contain serviceable parts. Warranty will not be applicable in the event Spectrum Compact has been opened. The information presented in this guide is the property of SAF Tehnika, JSC. No part of this document may be reproduced or transmitted without proper permission from SAF Tehnika, JSC.
  • Page 3: Table Of Contents

    Contents 1 OVERVIEW ..................... 4 1.1 Appearance & features ................4 1.2 Technical specification ................5 1.3 Accessories ....................5 2 OPERATION....................6 2.1 Basic operation ..................6 2.2 SWEEP CONT.................... 8 2.3 FREQ ......................8 2.4 SPAN ......................9 2.5 MARKER ....................
  • Page 4: Overview

    Data logging of all spectrum scans is available on the Spectrum Compact device, and enhanced data processing and analysis is provided by SAF Tehnika designed PC software that is included in price of Spectrum Compact.
  • Page 5: Technical Specification

    UBR320 to 2.92, 26–40 GHz, WR28 (P/N: J0S38WA001) 8 Horn antenna, 2.92mm connector 26.5–40.5 GHz, Gain: 20.5–21.5dBi 9 Handle and Spectrum Compact Pocket for 26.5-40.5 GHz horn antenna (P/N:J0AA2640RK04) 10 Riflescope for horn antennas (P/N J0AASA01) 11 Tripod for horn antennas (P/N: J0AASA03)
  • Page 6: Operation

    USB type-C port To turn on the Spectrum Compact, press and hold the power button on the left side for about 1.5 seconds. To turn the device off, press and hold the button again for about 1.5 seconds. The guaranteed operation time with a fully charged battery is 3 h.
  • Page 7 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION When Spectrum Compact is connected to a power source, a quick press of the button allows checking the battery status without turning on the device. While charging, the LED located under the transparent button will glow red.
  • Page 8: Sweep Cont

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.2 SWEEP CONT. Tapping the SWEEP CONT. button starts and stops continuous sweep of the selected spectrum range and registering of a spectrum curve. If a sweeping related parameter (frequency, level or trace setting) is modified, the sweep is restarted from the beginning.
  • Page 9: Span

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION which numbers can be entered at the current digit position to obtain a valid parameter value – the numbers on the green buttons can be entered, the numbers on the buttons cannot be entered. If the currently entered value is valid, it is displayed in green (and OK button is green).
  • Page 10 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION Modifying SPAN preserves CENTER frequency, if possible, but alters START and STOP frequencies. Tapping the MIN SPAN or FULL SPAN button instantly sets SPAN to respectively minimum or maximum allowed value. If the current SPAN value is the minimum or maximum, the corresponding button will be green.
  • Page 11: Marker

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.5 MARKER The MARKER menu allows placing a marker, which shows the input power level at the specified frequency. Tapping the PEAK button turns on and off the automatic search for the highest input power level in the displayed frequency range, and places the MARKER there.
  • Page 12: Rbw & Vbw

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION Entering the MARKER menu The MARKER menu 2.6 RBW & VBW The RBW & VBW menu allows selecting the resolution bandwidth (RBW) and video bandwidth (VBW) of the spectrum analyzer. The available RBW values are: ...
  • Page 13 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION The available VBW values are:  1 kHz  3 kHz  10 kHz  30 kHz  100 kHz Narrower VBW stabilizes the displayed trace (i.e. smooths the noise) and allows to see weaker signals better, but for pulsating signals a wider VBW should be used.
  • Page 14: Level

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.7 LEVEL The LEVEL menu allows selecting the MAX (highest limit of the vertical axis) and MIN (lowest limit of the vertical axis) values of the displayed input power range in dBm, and an input power level OFFSET value (e.g. if an external attenuator is being used) in decibels (dB).
  • Page 15: Trace

    Entering the TRACE menu The TRACE menu The DETECTOR determines which of the detected input power levels are displayed on the screen, since the Spectrum Compact does several measurements of the same frequency range during each sweep. The available detectors are: ...
  • Page 16 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION The currently used detector is indicated in yellow under the graph. DETECTOR: MAX DETECTOR: MIN The available trace modes are:  NORMAL Normal trace mode (the default). The power level values detected in real- time are displayed on screen without additional processing.
  • Page 17 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION NORMAL (actual real-time) trace. The number in blue under the graph shows from how many sweeps the MIN/MAXHOLD trace has been plotted. When a spectrum curve is saved, all three traces are preserved. Center and MARKER...
  • Page 18 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION MAXHOLD trace mode CUMULATIVE trace mode AVERAGE trace mode MIN/MAX HOLD trace mode...
  • Page 19: Power In Band

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.9 POWER IN BAND The POWER IN BAND menu allows measuring the input power in a specified band width BW i.e. over a range of frequencies, with a specified center frequency CENTER.
  • Page 20 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION Entering the POWER IN BAND menu The POWER IN BAND menu...
  • Page 21: Save

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.10 SAVE Tapping the SAVE button instantly saves the spectrum curve with an automatically generated file name: the first letter indicates the trace mode (“C” corresponds to NORMAL trace, “M” to MAXHOLD trace, “W” to CUMULATIVE trace, “A” to AVERAGE 2/4/8/16 traces and “N”...
  • Page 22: High Contrast

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.11 HIGH CONTRAST Tapping the HIGH CONTRAST button swaps the interface color scheme and sets screen background brightness to maximum. HIGH CONTRAST mode is designed to improve the visibility in direct sunlight. In HIGH CONTRAST mode the active buttons are indicated by a narrower shape instead of green color.
  • Page 23: Full Screen

    Horizontal FULL SCREEN  LOCK SCREEN The LOCK SCREEN button allows locking the screen of Spectrum Compact so that nothing can be accidentally tapped. When LOCK SCREEN is enabled, the LOCK SCREEN button is green. The LOCK SCREEN button is disabled by shortly pressing the power button.
  • Page 24: Tools

    FILES menu again. A saved spectrum curve can be deleted with DELETE from the FILES menu or from the folder “CURVES“ when Spectrum Compact is connected to a computer. To exit the FILES menu and return to the TOOLS menu, tap BACK.
  • Page 25 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION Entering the FILES menu The FILES menu...
  • Page 26: Profiles

    OPERATION 2.13.2 PROFILES The PROFILES menu allows saving and restoring the Spectrum Compact configuration – frequency, level, trace and screen settings, a mask etc. To save the current configuration as a profile, tap SAVE. The profile name can be up to 8 characters long.
  • Page 27: Mask Mode

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.13.3 MASK MODE The MASK MODE menu allows setting a file as a spectrum mask and thus visually comparing the current spectrum curve with a saved one. MASK MODE is not available for CUMULATIVE and MIN/MAXHOLD trace mode.
  • Page 28: Path Calc

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.13.4 PATH CALC The PATH CALC menu allows evaluating received signal level (RSL). The calculator is adapted for the 24-40 GHz frequency range. The calculated value is an estimation for distances starting from 0.1 km/ 0.1 mile.
  • Page 29 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION Entering the PATH CALC menu The PATH CALC menu The PATH CALC menu...
  • Page 30: Preset

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.13.5 PRESET The PRESET menu allows resetting the Spectrum Compact to the factory defaults. To confirm the action tap the PRESET button once more. To complete the action, reboot the Spectrum Compact.
  • Page 31: Record

    OPEN or BACK buttons, next record will be automatically started after 30 minutes. Spectrum Compact can be left at a site with NEW RECORD button active and the created records can be examined later. When charging with the supplied power source, Spectrum Compact can record files continuously.
  • Page 32 24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION Entering the RECORD menu The RECORD menu The RECORD menu...
  • Page 33: Auto Rotate

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.13.7 AUTO ROTATE Tapping the AUTO ROTATE button turns on and off the automatic rotation of the screen, if the device is turned by 90 or 180 degrees. Disabling the AUTO ROTATE locks the screen position.
  • Page 34: About

    Mass Storage Device (MSD) mode or to Virtual COM Port (VCP) mode. The MSD mode allows obtaining files saved on the Spectrum Compact. When Spectrum Compact is connected to a computer in MSD mode, it is not possible to save or delete spectrum curves, records and profiles, or to take screenshots.
  • Page 35 Spectrum Manager). By default Spectrum Compact is in MSD mode and it is recommended to keep it so for file access and firmware upgrade. To exit the USB MODE submenu, tap BACK. To exit the SERVICE MENU and return to the TOOLS menu tap BACK.
  • Page 36: Settings

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.14 SETTINGS All the other settings of the spectrum analyzer are accessible from the SETTINGS menu. To access the SETTING menu, from the main screen go to TOOLS & SETTINGS  SETTINGS.
  • Page 37: Bright

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.14.1 BRIGHT The BRIGHT menu allows setting the background brightness of the screen. Tapping the “+” button or moving the slider up, increases the brightness, tapping the “-“ button or moving the slider down, decreases the brightness. To exit the BRIGHT menu and return to the SETTINGS menu, tap BACK.
  • Page 38: Time

    To confirm a valid value, tap the OK button or tap the selected parameter. If the battery of Spectrum Compact was fully discharged or removed and the clock was stopped, before using the analyzer there is a prompt to set time to ensure correct timestamp for files.
  • Page 39: Color

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.14.3 COLOR The COLOR menu allows setting a custom color scheme for the graph. Tap the button GROUND, GRID or LINE to set the color for the background, the grid or the spectrum curve (NORMAL and AVERAGE traces), respectively.
  • Page 40: Signal Id

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) OPERATION 2.14.4 SIGNAL ID SIGNAL ID is available only for the 1 MHz RBW. Tapping the SIGNAL ID button turns on and off a filter algorithm that reduces the power levels of the harmonic signals. These artificial signals may become visible on screen, if the input power is high and the span is comparatively large.
  • Page 41: Firmware Upgrade

    5. Copy both – the firmware file (with extension “.fw”) and the initialization file (with extension “.ini”). 6. Open the Spectrum Compact drive and paste the two files into the FIRMWARE folder. 7. Turn Spectrum Compact off and back on. The text “FIRMWARE UPGRADE”...
  • Page 42: Contacts

    24–40 GHz SPECTRUM COMPACT v.2 (FW V5.3.3) CONTACTS CONTACTS Global headquarters North America office SAF Tehnika JSC SAF North America LLC VAT No. LV40003474109 OFFICE, MANUFACTURING AND LEGAL ADRESS: OFFICE ADDRESS: 24a, Ganibu Dambis 3250 Quentin Street, Riga, LV-1005, Latvia...

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