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COBHAM AEROFLEX 8800S Configuration And Connection Manual
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COBHAM AEROFLEX 8800S Configuration And Connection Manual

COBHAM AEROFLEX 8800S Configuration And Connection Manual

Digital radio test set
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The most important thing we build is trust
ADVANCED ELECTRONIC SOLUTIONS
AVIATION SERVICES
COMMUNICATIONS AND CONNECTIVITY
MISSION SYSTEMS
Basic Transceiver tests with the 8800S

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Summary of Contents for COBHAM AEROFLEX 8800S

  • Page 1 The most important thing we build is trust ADVANCED ELECTRONIC SOLUTIONS AVIATION SERVICES COMMUNICATIONS AND CONNECTIVITY MISSION SYSTEMS Basic Transceiver tests with the 8800S...
  • Page 2 Power, Frequency and Modulation. This port is rated at 50 Watts input. Measurements to 125 Watts are possible observing Duty cycle to prevent over heating. 2 August 2016 Cobham plc Cobham plc...
  • Page 3 • Press the Utilities tab and then the Presets menu to rapidly configure Presets quickly configure the 8800S for standard tile selections either Analog or and locations. Digital testing. 2 August 2016 Cobham plc Cobham plc...
  • Page 4 Every 8800S is pre- to gain access to configured with a large the pre-configured group of sample setups to test setups that configure the instrument are within every for a variety of basic tests. instrument. 2 August 2016 Cobham plc Cobham plc...
  • Page 5 Store/Recall menu, a folder named “Sample Setups” will be visible. To enter the folder, touch • or highlight the Sample Setups item on the list then press the icon to enter the folder. 2 August 2016 Cobham plc Cobham plc...
  • Page 6 This presentation will show • some of the ones available for FM and AM transceiver testing. Highlight the Analog FM folder • and press the icon to enter the folder. 2 August 2016 Cobham plc Cobham plc...
  • Page 7 Configure the 8800S for FM Transmitter test Highlight the TX_Test_FM • setup file and press the Recall button. This will configure the • 8800S to perform basic FM transmitter tests. 2 August 2016 Cobham plc Cobham plc...
  • Page 8 Measure and record the RF Error. This is the transmitter frequency error. Always Zero the Power Measure and record the RF meter before taking power Power Avg reading. This is the measurements. Transmit Power level. 2 August 2016 Cobham plc Cobham plc...
  • Page 9 Expanded Receiver tile. After entering this offset, the • transmitter output now reads 3.26 watts. This radio had been configured to transmit at 3.2 Watts in this frequency band. 2 August 2016 Cobham plc Cobham plc...
  • Page 10 Press the Home button again to minimize the menu. Home Button Note that Audio Volume and Squelch controls are also available on this menu. These may need to be adjusted later as necessary. 2 August 2016 Cobham plc Cobham plc...
  • Page 11 On the AF Gen tile, press the Fast • Stack icon until the Audio Config tile is revealed. Press the icon on the Audio • Config tile to reveal the audio signal routing table. Establish the following routings: • 2 August 2016 Cobham plc Cobham plc...
  • Page 12 For AM Modulation testing, • tones, set the AFBW value to change the Demod value on 300 Hz LP to filter out audio the Receiver tile from FM to signals above 300 Hz. 2 August 2016 Cobham plc Cobham plc...
  • Page 13 Microphone input. The AF Gen tile can then be used • to apply a tone to modulate the transmitter. Additional testing of Transmitter • distortion and microphone sensitivity can now be performed. 2 August 2016 Cobham plc Cobham plc...
  • Page 14 AF Gen Level to achieve the desired modulation results. Measure the transmitter • distortion. Turn the AF Generator OFF • when testing is complete. Note: The RF Generator must • not be Enabled when doing this test. 2 August 2016 Cobham plc Cobham plc...
  • Page 15 The tabs on the side can be • used to access: – Two Tone – Tone Remote – Tone Sequential Each selection will reconfigure • the tile for the selected operation. 2 August 2016 Cobham plc Cobham plc...
  • Page 16 • recall the RX_Test_FM setup file from the Store / Recall screen from the Utilities – Store / Recall menu. Select the sample setup • RX_Test_FM setup file and press the Recall button. 2 August 2016 Cobham plc Cobham plc...
  • Page 17 Basic Receiver Test On the Generator Tile, enter the • radio’s receive frequency in the Frequency entry field. Enable the RF Generator (On). • 2 August 2016 Cobham plc Cobham plc...
  • Page 18 On the Freq Select tile, press the • Fast Stack icon until the Audio Config tile is revealed. Press the icon on the Audio • Config tile to reveal the audio signal routing table. Establish the following routings: • 2 August 2016 Cobham plc Cobham plc...
  • Page 19 The two tones will be summed and applied to the generator modulator. Audio should now be heard from the • receiver under test. The radio’s volume and squelch settings may need to be adjusted. 2 August 2016 Cobham plc Cobham plc...
  • Page 20 Basic Receiver Test For AM Receiver testing, change the • Modulation mode from FM to AM on the Modulation tile. 2 August 2016 Cobham plc Cobham plc...
  • Page 21 8800S Audio Level meter then measure receiver distortion of the radio. Note that the Modulation • Frequency must be at 1 kHz rate for Distortion and SINAD measurements. 2 August 2016 Cobham plc Cobham plc...
  • Page 22 Advanced Receiver Testing Using the up and down arrow • controls, the RF Generator level can be adjusted to obtain a desired SINAD level to evaluate receiver sensitivity. 2 August 2016 Cobham plc Cobham plc...
  • Page 23 From the meters tab on the • output to the In-Line Power launch bar, choose the meter IN port. Inline Power meter. The radio’s Antenna can be • connected to the Out port of the In-Line Power meter. 2 August 2016 Cobham plc Cobham plc...
  • Page 24 Matched antenna VSWR and Return Loss • viewed as VSWR or Return Loss. An antenna that is tuned • to the transmit frequency will show a high RTL and a low VSWR. Mismatched antenna VSWR and Return Loss 2 August 2016 Cobham plc Cobham plc...
  • Page 25 An Offset entry allows for a test • cable correction factor to be entered if a test cable is being connected directly to a transmitter. To compensate for a cable loss, enter a negative value. 2 August 2016 Cobham plc Cobham plc...
  • Page 26 Using a microphone on the transmitter under test, voice • communications to the 8800S is possible. Connect an antenna to the 8800S T/R port and the Radio ANT port. 2 August 2016 Cobham plc Cobham plc...
  • Page 27 Over the Air testing For this test, recall • Duplex_Test_FM setup file from the Sample Setups. Connect a Microphone to the • 8800S MIC jack. 2 August 2016 Cobham plc Cobham plc...
  • Page 28 The setup file configures the • input and output ports to the T/R. This allows the 8800S to see it’s own signal. 2 August 2016 Cobham plc Cobham plc...
  • Page 29 Press the Home Button and • Enable the speaker. Adjust the volume to mid • range. Adjust the Squelch to mid • range. Press the Home button to • close the menu. Home Button 2 August 2016 Cobham plc Cobham plc...
  • Page 30 Select the EXT tab is depressed. and enter a desired modulation level for To use voice instead of tone, turn the MIC to use Gen 1 OFF select EXT after voice modulation. expanding the Modulation tile. 2 August 2016 Cobham plc Cobham plc...
  • Page 31 The 8800S Analog Demod panel now shows Transmitter Frequency • Error, Modulation and signal strength with the RSSI meter. If desired, a Channel Analyzer can be added to the display from the • Analyzers Tab on the launch bar. 2 August 2016 Cobham plc Cobham plc...
  • Page 32 On the Modulation tile, select • the Group field to view a variety of other tone formats to choose from. Each selection will populate the • Modulation tile with the associated controls for the item selected. 2 August 2016 Cobham plc Cobham plc...
  • Page 33 Antenna can be connected to the IN port of the Inline power meter. The Out port of the Inline • power meter can be connected to a suitable load or antenna. Base Station 2 August 2016 Cobham plc Cobham plc...
  • Page 34 -130 dBm to test the base station RX Sensitivity. Select the ANT port on • the Generator tile. Enter -40 dB on the • Base Station Generator tile Offset value. 2 August 2016 Cobham plc Cobham plc...
  • Page 35 Duplexer ANT port. With this connection the • 8800S can generate to the Repeater RX while Duplexer simultaneously receiving the Repeater TX while connected to the 8800S TR port. Base Station 2 August 2016 Cobham plc Cobham plc...
  • Page 36 This tile allows you to select a • stored frequency list that includes an optional Name for each frequency pair in the list. Simply use the “Prev” and • “Next” buttons to step through the programmed frequencies. 2 August 2016 Cobham plc Cobham plc...
  • Page 37 Frequency List Configuration Access the Frequency List from the Config menu by selecting Freq List. 2 August 2016 Cobham plc Cobham plc...
  • Page 38 Antenna testing with the Tracking Generator Requires the Precision DTF / VSWR kit and Tracking Generator Power Divider Return Loss Bridge Interconnect cables Precision 50 ohm load 2 August 2016 Cobham plc Cobham plc...
  • Page 39 2. Connect the Bridge “ANT” port to the 8800S “ANT” port. With the Return Loss Bridge you can measure Antenna or Device Return Loss or VSWR. Use the Power Divider to measure Distance to Fault. 2 August 2016 Cobham plc Cobham plc...
  • Page 40 VSWR, Return Loss plots • and Distance to Fault measurements are done using the Tracking Generator mode. To access the Tracking • Generator, select Tracking Gen from the Analyzers tab on the launch bar. 2 August 2016 Cobham plc Cobham plc...
  • Page 41 Establish the settings • as indicated in the chart for Control tab 1 and Control tab 2. On Control tab 1, • press the “Set Ref Level” button to establish a zero reference. 2 August 2016 Cobham plc Cobham plc...
  • Page 42 As configured, this will • show a sweep from 100 MHz to 1 GHz. Set Y Unit to VSWR on • Control Tab 1. This VSWR sweep shows • good performance at higher frequencies. 2 August 2016 Cobham plc Cobham plc...
  • Page 43 Simply connect the provided N Type cables from the 8800S to the Power Divider. 1. Connect the Divider “GEN” port to the 8800S “GEN” port. 2. Connect the Divider “ANT” port to the 8800S “ANT” port. 2 August 2016 Cobham plc Cobham plc...
  • Page 44 On the Cable tab, choose the cable type from the recall cable menu or directly enter the Velocity factor and loss per 100 ft if known. 2 August 2016 Cobham plc Cobham plc...
  • Page 45 Control 1 tab. Remove the 50 ohm termination and connect the transmission line and antenna to the DUT port of the Power Divider. Markers can be used to measure the distance to the antenna. 2 August 2016 Cobham plc Cobham plc...
  • Page 46 Digital Radio Testing From the Sample Setups • area, highlight the P25 Test folder and press the icon to enter the folder. 2 August 2016 Cobham plc Cobham plc...
  • Page 47 This file will recall the primary • elements required to perform P25 Transmitter and Receiver tests. Upper and Lower limits will be • configured for signals that have limits set by the technology standards. 2 August 2016 Cobham plc Cobham plc...
  • Page 48 P25 signal into itself. The TX BER, Modulation Fidelity • and Symbol Deviation meters will show up as green on the Digital Demod tile as they are within the preset limits set for these meters. 2 August 2016 Cobham plc Cobham plc...
  • Page 49 Expand the Receiver tile and • Key the transmitter. Use the “Freq Find” feature to find an unknown transmitter frequency or just enter the frequency on the receiver tile if the frequency is known. 2 August 2016 Cobham plc Cobham plc...
  • Page 50 On the 8800S Digital Demod • tile, set the Pattern field to “FRAMESYNC” to measure TX BER on a voice channel. Use the Fast Stack feature to • access the Modulation tile in the upper right corner. 2 August 2016 Cobham plc Cobham plc...
  • Page 51 Note the decoded NAC value on • the Digital Demod panel as it Demodulated audio is not will be programmed on the available to the speaker on the Modulation tile to test the 8800S in Digital formats. receiver. 2 August 2016 Cobham plc Cobham plc...
  • Page 52 A tone should be heard from • the radio receiver now. The 8800S generator level • can be reduced to see what level produces an unstable tone in the receiver revealing the sensitivity of the receiver. 2 August 2016 Cobham plc Cobham plc...
  • Page 53 8800SX Options and Accessories •5 •2 August 2016 Cobham plc Cobham plc...
  • Page 54 Questions or Comments? Contact Information For information about pricing for our products, contact the sales office by calling Cobham AvComm Sales at (800) 835-2352 or emailing AvComm.TechSales@cobham.com. For technical/product support, calibration, maintenance and general customer service inquiries, you can contact our help desk by...

This manual is also suitable for:

Aeroflex 8800sx