Page 2
AIRSCOUT SPECTRUM FCC Compliance Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residen- tial installation.
AIRSCOUT SPECTRUM 1. OVERVIEW 1.1 Appearance & Features Touchscreen Strap lug Tripod socket Power button USB type-C port Airscout Spectrum analyzer is an ultra-light and easy-to-use measurement solution. This battery-powered device does not require external down-converters and is a must-have tool for any field engineer performing equipment installa- tion, link troubleshooting, site planning, and maintenance.
AIRSCOUT SPECTRUM 2 OPERATION 2.1 Basic Operation SMA or 2.92mmconnector Graph Power button Available USB type-C port To turn on Airscout Spectrum, 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 4 h. The small battery in the upper right corner indicates the current battery level.
Page 8
AIRSCOUT SPECTRUM Tempo Communications cannot guarantee that any charger, besides the one supplied with the unit, will ensure continuous sweep. When Airscout Spectrum is connected to a power source, a quick press of the power button allows checking the battery status without turning on the device. While charging, the LED located under the transparent button will glow red. If the device is attached to a power source, but the battery is not charging (e.g.
AIRSCOUT SPECTRUM Sweep Tapping the SWEEP CONT. button starts and stops continuous sweep of the selected spectrum range and register- ing of a spectrum curve. If a sweeping related parameter (frequency, level, or trace setting) is modified, the sweep is restarted from the beginning. When SWEEP CONT. is enabled, the SWEEP CONT. button is green and a small white bar is moving under the graph, indicating how far the selected span has been swept.
Page 10
AIRSCOUT SPECTRUM Modifying START or STOP frequency will alter CENTER frequency and SPAN, but will preserve the STOP or START frequency, respectively. Modifying CENTER frequency will alter both START and STOP frequencies but will preserve SPAN, if possible (it may not be possible due to limits of supported frequency range). The currently selected parameter (START/ STOP/ CENTER) is displayed in white.
AIRSCOUT SPECTRUM 2.4 Span The SPAN menu allows selecting the range of the horizontal axis (difference between START and STOP frequencies) i.e. span, in megahertz (MHz). While at the SPAN menu, tapping the right part of the graph decreases SPAN (zooms in), and tapping the left part of the graph increases SPAN (zooms out).
Page 12
AIRSCOUT SPECTRUM To exit the SPAN menu and return to the main screen, tap BACK. Entering the SPAN menu The SPAN menu 2.5 Marker The MARKER menu allows placing a marker, which shows the input power level at the specified frequency. MARKER and POWER IN BAND cannot be activated both at the same time. 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 13
AIRSCOUT SPECTRUM The frequency value can be entered with a precision of 0.01 MHz (10 kHz) by using the “.” on the keypad. To input a value with decimal digits, first enter the full MHz’s, then tap the “.” button and enter the rest of the digits. Until the value is confirmed, the digits after the point are displayed larger. If there are no digits displayed after the point, it means that they are zeroes. While in the MARKER menu, tapping the graph will place the MARKER there. MARKER can be moved also by dragging it.
Page 14
AIRSCOUT SPECTRUM Narrower RBW allows to distinguish closer signals, but the span is swept considerably slower. The 10 kHz RBW for Airscout Spectrum 0.3-3 GHz and 30 kHz for Airscout Spectrum 2-8 GHz is most effectively utilized together with a lower reference level (see REF). The available VBW values are: •...
AIRSCOUT SPECTRUM Entering the RBW & VBW menu The RBW & VBW menu Tapping the AUTO button enables and disables automatic adjustment of RBW and VBW depending on the selected SPAN. AUTO ensures optimum use of the filters. AUTO is enabled by default. When AUTO is enabled, the AUTO button is green at the RBW &...
AIRSCOUT SPECTRUM The RBW & VBW menu The RBW & VBW menu 2.7.1 REF The REF submenu is available for Airscout Spectrum 0.3-3 GHz for all it’s RBW and also REF submenu is available for Airscout Spectrum 2-8 GHz when selecting 30 khz or 100 khz RBW. It allows changing the gain and thus the reference level of the spectrum analyzer.
AIRSCOUT SPECTRUM Entering the REF menu The REF menu 2.7.2 ATT* The ATT submenu allows selecting the internal attenuators. Current internal attenuation is displayed at this menu and on the right side under the graph. Any additional attenuation raises the noise floor but allows to input stronger signals (i.e. raises the reference level). To exit the ATT submenu and return to the LEVEL menu, tap BACK. The internal attenuation is 0 by default.
AIRSCOUT SPECTRUM Entering the ATT menu The ATT menu 2.7.1 LNA* Tapping the LNA button turns on and off the “Low Noise Amplification”. LNA lowers the noise floor and allows viewing very weak signals but the reference (overload) level is considerably lowered. * Only Airscout Spectrum 0.3-3 GHz, 2-8 GHz When LNA is enabled, the LNA button is green and an indication is displayed under the graph.
Page 19
AIRSCOUT SPECTRUM The LNA menu Tempo Communications Inc. 1390 Aspen Way • Vista, CA 92081 USA • 800-642-2155...
AIRSCOUT SPECTRUM 2.7.4 Units The UNITS submenu allows changing the displayed units of the spectrum analyzer. There are 6 logarithmic units available. Power units: • dBm (the default units) – decibels referenced to one milliwatt • dBuW – decibels referenced to one microwatt Voltage units: •...
Page 21
AIRSCOUT SPECTRUM While in the dBuV/m menu, tapping the graph will place the dBuV/m marker there. dBuV/m marker can be moved also by dragging it. If the dBuV/m marker frequency is outside of the currently displayed frequency range, arrows on t he graph will indicate beyond which side of the graph the marker is positioned.
Page 22
AIRSCOUT SPECTRUM The UNITS menu The “dBuV/m” menu SCALE menu is available only for default units “dBm”. Adjust the scale before selecting non-default Tempo Communications Inc. 1390 Aspen Way • Vista, CA 92081 USA • 800-642-2155...
AIRSCOUT SPECTRUM 2.7.5 Scale The SCALE 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.
AIRSCOUT SPECTRUM 2.8 Trace The TRACE menu allows adjusting the swept spectrum curve by selecting the most suitable DETECTOR and trace type. Entering the TRACE menu The TRACE menu The DETECTOR determines which of the detected input power levels are displayed on the screen since the Airscout Spectrum does several measurements of the same frequency range during each sweep.
Page 25
AIRSCOUT SPECTRUM DETECTOR: MAX DETECTOR: MIN The available trace types are: • NORMAL Normal trace mode (the default trace mode). The power level values after the detector are displayed on the screen in real-time without additional processing. • MAXHOLD Shows in blue the highest power levels registered since the sweeping with this trace mode commenced, additional to the NORMAL (actual real-time) trace.
Page 26
AIRSCOUT SPECTRUM • CUMULATIVE Shows in green all detected input power levels in range since the sweeping with this trace mode began. The number in green under the graph shows how many sweeps the CUMULATIVE trace has been plotted. CUMULATIVE trace shows how the signal energy is divided within the spectrum. MARKER, POWER IN BAND, FULL SCREEN, RECORD, and MASK MODE are not available for CUMULATIVE trace mode.
Page 27
AIRSCOUT SPECTRUM For the maximum allowed SPAN for MIN/MAXHOLD trace please see Table3 To exit the TRACE menu and return to the main screen, tap BACK. MAXHOLD trace mode CUMULATIVE trace mode AVARAGE trace mode MIN/MAX HOLD trace mode Tempo Communications Inc. 1390 Aspen Way •...
AIRSCOUT SPECTRUM 2.9 Power In Band The POWER IN BAND menu allows measuring the input power in a specified bandwidth BW i.e. over a range of frequencies, with a center frequency CENTER specified at this menu. POWER IN BAND feature also can be used to measure the channel width or channel separation by adjusting the BW to fit. MARKER and POWER IN BAND cannot be activated both at the same time. Tapping the SET TO CENTER button centers POWER IN BAND on the CENTER frequency of the currently selected SPAN. To increase the accuracy of input power level measurements, select DETECTOR: AVG and one of the AVERAGE traces at the TRACE...
Page 29
AIRSCOUT SPECTRUM Entering the POWER IN BAND menu The POWER IN BAND menu Tempo Communications Inc. 1390 Aspen Way • Vista, CA 92081 USA • 800-642-2155...
AIRSCOUT SPECTRUM 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, “M” to MAXHOLD, “W” to CUMULATIVE, “A” to AVERAGE 2/4/8/16 and “N” to MIN/MAXHOLD) and the remaining digits are the file order number. SAVE button is not available if at least one full sweep has not been done with the current sweep settings. Holding the SAVE button for a few seconds allows saving the current spectrum curve with a custom file name. The name can be up to 8 characters long.
AIRSCOUT SPECTRUM 2.11 Preset The PRESET menu allows resetting the Airscout Spectrum to the factory defaults. To confirm tap the PRESET button once more. Reboot the Airscout Spectrum. Use PRESET to quickly default settings and clear enabled features. Use PROFILES to save a configuration before using PRESET and to restore it afterwards. PRESET will not format the internal storage disk of the Airscout Spectrum. PRESET and a reboot is mandatory after a firmware upgrade.
AIRSCOUT SPECTRUM 2.12 Full Screen Tapping the FULL SCREEN button expands the graph. In FULL SCREEN mode, there are only buttons LOCK SCREEN, SAVE, and SWEEP CONT. accessible. The LOCK SCREEN button allows locking the screen of the Airscout Spectrum so that no button on the screen can be accidentally pressed and the graph stays as it is configured. The screen is unlocked by shortly pressing the power button.
AIRSCOUT SPECTRUM 2.13 Tools Additional functions of the spectrum analyzer are accessible at the TOOLS menu. To access the TOOLS menu, tap the TOOLS & SETTINGS button from the main screen. To exit the TOOLS menu and return to the main screen, tap BACK. Entering the TOOLS menu The TOOLS menu Tempo Communications Inc.
AIRSCOUT SPECTRUM 2.13.1 Files The FILES menu allows operating with previously saved spectrum curves. Files are sorted by the time they were created and the latest file is on top of the list. The time when the spectrum curve was saved and its trace mode is given under the filename. Navigate the files using the arrows or the slider. Tap on the file to select it – the selected spectrum curve will be previewed at once. To get more options, tap OPEN. Then the main screen with the selected file on screen is opened. From the main screen, the displayed input power range and frequency range can be adjusted (zooming in on the frequency axis could be done, if the file was saved with SPAN greater than MIN SPAN for the file’s RBW), and the MARKER or POWER IN BAND can be enabled or adjusted. Also, a mask can be enabled from the TOOLS & SET- TINGS menu (see MASK MODE).
AIRSCOUT SPECTRUM 2.13.2 Profiles The PROFILES menu allows saving and afterwards restoring Airscout Spectrum’s configuration – frequency, level, trace and screen settings, a mask, etc. To save the current configuration as a profile, tap SAVE PROFILE. The profile name can be up to 8 characters long. When assigning a custom file name, it is checked whether the name does not match with an already existing one. In that case, it is not possible to confirm it. Profiles are sorted alphabetically. The time when the profile was created is given under the filename. Navigate the saved profiles list using the arrows or the slider. To preview a saved profile, tap on it to select it, then tap VIEW PROFILE. Re- store a profile by tapping the SET PROFILE button. To see how the current spectrum looks with a selected profile, make sure the SWEEP CONT. button is active on the main screen. Enteringthe PROFILES menu The PROFILES menu Tempo Communications Inc. 1390 Aspen Way • Vista, CA 92081 USA • 800-642-2155...
AIRSCOUT SPECTRUM 2.13.3 Mask Mode The MASK MODE menu allows setting a file as a spectrum mask and thus visually comparing the currently displayed spec- trum curve with another one. MASK MODE is not available for CUMULATIVE and MIN/MAXHOLD trace modes. CUMULATIVE traces cannot be used as masks. The MAXHOLD trace is set as a mask from a MIN/MAXHOLD file. To enter the file system, tap SELECT FILE. Navigate the files using arrows or the slider, tap on the file to select it, and then tap the SET AS MASK button (to exit the SELECT FILE submenu without selecting a mask, tap BACK). This selected mask curve is put on the graph and it is displayed in red.
AIRSCOUT SPECTRUM 2.13.4 Path Calc The PATH CALC menu allows evaluating received signal level (RSL) in dBm. The calculator is adapted for the 300 – 3000 MHz frequency range in the Airscout Spectrum 0.3-3 GHz, for the 2000 – 8000 MHz in the Airscout Spectrum 2-8 GHz, for the 24000 –...
Page 38
AIRSCOUT SPECTRUM Entering the PATH CALC menu The PATH CALC menu The PATH CALC menu Tempo Communications Inc. 1390 Aspen Way • Vista, CA 92081 USA • 800-642-2155...
AIRSCOUT SPECTRUM 2.13.5 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 visibility in direct sunlight. In HIGH CONTRAST mode, the active buttons are indicated by a narrower shape instead of green color.
AIRSCOUT SPECTRUM 2.13.6 Record The RECORD menu allows creating a record of a continuous spectrum sweep. To start a new record with the currently selected sweep settings, tap NEW RECORD (NEW RECORD button turns on continuous sweep). The filename is assigned automatically, but it can be changed afterwards when the file is open with the button RENAME RECORD. The maximum length of a record is 30 minutes. If the recording is not manually stopped earlier either by tapping the NEW RECORD button again (thus disabling it) or by tapping the OPEN RECORD or BACK buttons, a new consequent record will be started automatically.
Page 41
AIRSCOUT SPECTRUM To close the record and exit the OPEN RECORD submenu, tap BACK. To exit the RECORD menu and return to the TOOLS menu tap BACK. The RECORD menu Entering the RECORD menu The OPEN RECORD submenu The MORE OPTIONS submenu Tempo Communications Inc.
AIRSCOUT SPECTRUM 2.13.7 Record Time Plot The RECORD TIME PLOT menu allows visualizing the detected power values over time during a record. The vertical axis is transformed into a time axis – the bottommost row of a time plot corresponds to the newest sweep and the uppermost row corresponds to the first recorded sweep. Input power levels are indicated with different colors. The color legend is dis- played above the graph.
Page 43
AIRSCOUT SPECTRUM To exit the OPEN TIME PLOT submenu, tap BACK. To exit the RECORD TIME PLOT menu and return to the TOOLS menu, tap BACK. Entering RECORD TIME PLOT menu The RECORD TIME PLOT menu The OPEN TIME PLOT submenu Tempo Communications Inc.
AIRSCOUT SPECTRUM 2.13.8 Auto Rotate Tapping the AUTO ROTATE button turns on and off the automatic rotation of the screen if the device is turned by 90, 180, or 270 degrees. When AUTO ROTATE is enabled, the button is green. Disabling the AUTO ROTATE locks the screen position as it is at that moment.
AIRSCOUT SPECTRUM 2.13.9 About The ABOUT menu contains information about the Airscout Spectrum unit: supported frequency range, product number, serial number, hardware version, and firmware version with its date. To exit the ABOUT menu and return to the TOOLS menu, tap BACK. Entering the ABOUT menu The ABOUT menu 2.13.10 Service Menu SERVICE MENU allows determining how the Airscout Spectrum behaves when connected to a computer. •...
AIRSCOUT SPECTRUM Entering the SERVICE menu The SERVICE menu 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. To exit the SETTINGS menu and return to the TOOLS menu, tap BACK. To return to the main screen, tap MAIN MENU. Entering the SETTINGS menu The SETTINGS menu Tempo Communications Inc.
AIRSCOUT SPECTRUM 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. Enabling HIGH CONTRAST mode automatically sets the brightness to maximum.
AIRSCOUT SPECTRUM 2.14.2 Time The TIME menu allows setting the time/date format of the Airscout Spectrum. The currently selected parameter (YEAR/ MONTH/ DATE/ HOUR/ MIN) is displayed in white. To select a different parameter, tap on it once. The color of the keypad buttons shows which numbers can be entered at the current digit posi- tion to obtain a valid value –...
AIRSCOUT SPECTRUM 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. The color is defined by moving the sliders for (R), green (G), and...
AIRSCOUT SPECTRUM The SIGNAL ID button Operation of SIGNAL ID 2.15 Firmware Upgrade Make sure that the firmware file is for the correct Airscout Spectrum product! Also please avoid downgrading to older firmware versions! 1. Turn Airscout Spectrum on. 2. From the main screen tap TOOLS & SETTINGS, then tap SERVICE MENU. Tap USB MODE. 3.
AIRSCOUT SPECTRUM 2.16 Realtime Mode with AirScout Spectrum Manager To use Airscout Spectrum with AirScout Spectrum Manager in Realtime mode, follow these steps: 1. Turn Airscout Spectrum on. 2. From the main screen tap TOOLS & SETTINGS, then tap SERVICE MENU. Tap USB MODE. 3.
Contacts Tempo Communications 1390 Aspen Way • Vista, CA 92081 • USA 800-642-2155 • An ISO 9001 Company Tempo Europe Ltd. • Brecon House • William Brown Close Cwmbran • NP44 3AB, UK • Tel: +44 1633 927 050 www.TempoCom.com...
Need help?
Do you have a question about the Airscout Spectrum ASPEC03BK and is the answer not in the manual?
Questions and answers